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linux-stable/drivers/pinctrl/pinctrl-lpc18xx.c

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pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
/*
* Pinctrl driver for NXP LPC18xx/LPC43xx System Control Unit (SCU)
*
* Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/io.h>
pinctrl: lpc18xx: make it explicitly non-modular The Kconfig currently controlling compilation of this code is: config PINCTRL_LPC18XX bool "NXP LPC18XX/43XX SCU pinctrl driver" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. We explicitly disallow a driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Joachim Eastwood <manabian@gmail.com> Cc: linux-gpio@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-07 02:43:03 +00:00
#include <linux/init.h>
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/pinconf-generic.h>
#include "core.h"
#include "pinctrl-utils.h"
/* LPC18XX SCU analog function registers */
#define LPC18XX_SCU_REG_ENAIO0 0xc88
#define LPC18XX_SCU_REG_ENAIO1 0xc8c
#define LPC18XX_SCU_REG_ENAIO2 0xc90
#define LPC18XX_SCU_REG_ENAIO2_DAC BIT(0)
/* LPC18XX SCU pin register definitions */
#define LPC18XX_SCU_PIN_MODE_MASK 0x7
#define LPC18XX_SCU_PIN_EPD BIT(3)
#define LPC18XX_SCU_PIN_EPUN BIT(4)
#define LPC18XX_SCU_PIN_EHS BIT(5)
#define LPC18XX_SCU_PIN_EZI BIT(6)
#define LPC18XX_SCU_PIN_ZIF BIT(7)
#define LPC18XX_SCU_PIN_EHD_MASK 0x300
#define LPC18XX_SCU_PIN_EHD_POS 8
pinctrl: lpc18xx: add support for usb1 pinconf The dedicated USB1 pins can be configured with pull-down and for low power mode (suspend). Add support for this in the pinctrl driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14 22:25:27 +00:00
#define LPC18XX_SCU_USB1_EPD BIT(2)
#define LPC18XX_SCU_USB1_EPWR BIT(4)
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
#define LPC18XX_SCU_I2C0_EFP BIT(0)
#define LPC18XX_SCU_I2C0_EHD BIT(2)
#define LPC18XX_SCU_I2C0_EZI BIT(3)
#define LPC18XX_SCU_I2C0_ZIF BIT(7)
#define LPC18XX_SCU_I2C0_SCL_SHIFT 0
#define LPC18XX_SCU_I2C0_SDA_SHIFT 8
#define LPC18XX_SCU_FUNC_PER_PIN 8
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
/* LPC18XX SCU pin interrupt select registers */
#define LPC18XX_SCU_PINTSEL0 0xe00
#define LPC18XX_SCU_PINTSEL1 0xe04
#define LPC18XX_SCU_PINTSEL_VAL_MASK 0xff
#define LPC18XX_SCU_PINTSEL_PORT_SHIFT 5
#define LPC18XX_SCU_IRQ_PER_PINTSEL 4
#define LPC18XX_GPIO_PINS_PER_PORT 32
#define LPC18XX_GPIO_PIN_INT_MAX 8
#define LPC18XX_SCU_PINTSEL_VAL(val, n) \
((val) << (((n) % LPC18XX_SCU_IRQ_PER_PINTSEL) * 8))
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
/* LPC18xx pin types */
enum {
TYPE_ND, /* Normal-drive */
TYPE_HD, /* High-drive */
TYPE_HS, /* High-speed */
TYPE_I2C0,
TYPE_USB1,
};
/* LPC18xx pin functions */
enum {
FUNC_R, /* Reserved */
FUNC_ADC,
FUNC_ADCTRIG,
FUNC_CAN0,
FUNC_CAN1,
FUNC_CGU_OUT,
FUNC_CLKIN,
FUNC_CLKOUT,
FUNC_CTIN,
FUNC_CTOUT,
FUNC_DAC,
FUNC_EMC,
FUNC_EMC_ALT,
FUNC_ENET,
FUNC_ENET_ALT,
FUNC_GPIO,
FUNC_I2C0,
FUNC_I2C1,
FUNC_I2S0_RX_MCLK,
FUNC_I2S0_RX_SCK,
FUNC_I2S0_RX_SDA,
FUNC_I2S0_RX_WS,
FUNC_I2S0_TX_MCLK,
FUNC_I2S0_TX_SCK,
FUNC_I2S0_TX_SDA,
FUNC_I2S0_TX_WS,
FUNC_I2S1,
FUNC_LCD,
FUNC_LCD_ALT,
FUNC_MCTRL,
FUNC_NMI,
FUNC_QEI,
FUNC_SDMMC,
FUNC_SGPIO,
FUNC_SPI,
FUNC_SPIFI,
FUNC_SSP0,
FUNC_SSP0_ALT,
FUNC_SSP1,
FUNC_TIMER0,
FUNC_TIMER1,
FUNC_TIMER2,
FUNC_TIMER3,
FUNC_TRACE,
FUNC_UART0,
FUNC_UART1,
FUNC_UART2,
FUNC_UART3,
FUNC_USB0,
FUNC_USB1,
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
FUNC_MAX
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
};
static const char *const lpc18xx_function_names[] = {
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
[FUNC_R] = "reserved",
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
[FUNC_ADC] = "adc",
[FUNC_ADCTRIG] = "adctrig",
[FUNC_CAN0] = "can0",
[FUNC_CAN1] = "can1",
[FUNC_CGU_OUT] = "cgu_out",
[FUNC_CLKIN] = "clkin",
[FUNC_CLKOUT] = "clkout",
[FUNC_CTIN] = "ctin",
[FUNC_CTOUT] = "ctout",
[FUNC_DAC] = "dac",
[FUNC_EMC] = "emc",
[FUNC_EMC_ALT] = "emc_alt",
[FUNC_ENET] = "enet",
[FUNC_ENET_ALT] = "enet_alt",
[FUNC_GPIO] = "gpio",
[FUNC_I2C0] = "i2c0",
[FUNC_I2C1] = "i2c1",
[FUNC_I2S0_RX_MCLK] = "i2s0_rx_mclk",
[FUNC_I2S0_RX_SCK] = "i2s0_rx_sck",
[FUNC_I2S0_RX_SDA] = "i2s0_rx_sda",
[FUNC_I2S0_RX_WS] = "i2s0_rx_ws",
[FUNC_I2S0_TX_MCLK] = "i2s0_tx_mclk",
[FUNC_I2S0_TX_SCK] = "i2s0_tx_sck",
[FUNC_I2S0_TX_SDA] = "i2s0_tx_sda",
[FUNC_I2S0_TX_WS] = "i2s0_tx_ws",
[FUNC_I2S1] = "i2s1",
[FUNC_LCD] = "lcd",
[FUNC_LCD_ALT] = "lcd_alt",
[FUNC_MCTRL] = "mctrl",
[FUNC_NMI] = "nmi",
[FUNC_QEI] = "qei",
[FUNC_SDMMC] = "sdmmc",
[FUNC_SGPIO] = "sgpio",
[FUNC_SPI] = "spi",
[FUNC_SPIFI] = "spifi",
[FUNC_SSP0] = "ssp0",
[FUNC_SSP0_ALT] = "ssp0_alt",
[FUNC_SSP1] = "ssp1",
[FUNC_TIMER0] = "timer0",
[FUNC_TIMER1] = "timer1",
[FUNC_TIMER2] = "timer2",
[FUNC_TIMER3] = "timer3",
[FUNC_TRACE] = "trace",
[FUNC_UART0] = "uart0",
[FUNC_UART1] = "uart1",
[FUNC_UART2] = "uart2",
[FUNC_UART3] = "uart3",
[FUNC_USB0] = "usb0",
[FUNC_USB1] = "usb1",
};
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
struct lpc18xx_pmx_func {
const char **groups;
unsigned ngroups;
};
struct lpc18xx_scu_data {
struct pinctrl_dev *pctl;
void __iomem *base;
struct clk *clk;
struct lpc18xx_pmx_func func[FUNC_MAX];
};
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
struct lpc18xx_pin_caps {
unsigned int offset;
unsigned char functions[LPC18XX_SCU_FUNC_PER_PIN];
unsigned char analog;
unsigned char type;
};
/* Analog pins are required to have both bias and input disabled */
#define LPC18XX_SCU_ANALOG_PIN_CFG 0x10
/* Macros to maniupluate analog member in lpc18xx_pin_caps */
#define LPC18XX_ANALOG_PIN BIT(7)
#define LPC18XX_ANALOG_ADC(a) ((a >> 5) & 0x3)
#define LPC18XX_ANALOG_BIT_MASK 0x1f
#define ADC0 (LPC18XX_ANALOG_PIN | (0x00 << 5))
#define ADC1 (LPC18XX_ANALOG_PIN | (0x01 << 5))
#define DAC LPC18XX_ANALOG_PIN
#define LPC_P(port, pin, f0, f1, f2, f3, f4, f5, f6, f7, a, t) \
static struct lpc18xx_pin_caps lpc18xx_pin_p##port##_##pin = { \
.offset = 0x##port * 32 * 4 + pin * 4, \
.functions = { \
FUNC_##f0, FUNC_##f1, FUNC_##f2, \
FUNC_##f3, FUNC_##f4, FUNC_##f5, \
FUNC_##f6, FUNC_##f7, \
}, \
.analog = a, \
.type = TYPE_##t, \
}
#define LPC_N(pname, off, f0, f1, f2, f3, f4, f5, f6, f7, a, t) \
static struct lpc18xx_pin_caps lpc18xx_pin_##pname = { \
.offset = off, \
.functions = { \
FUNC_##f0, FUNC_##f1, FUNC_##f2, \
FUNC_##f3, FUNC_##f4, FUNC_##f5, \
FUNC_##f6, FUNC_##f7, \
}, \
.analog = a, \
.type = TYPE_##t, \
}
/* Pinmuxing table taken from data sheet */
/* Pin FUNC0 FUNC1 FUNC2 FUNC3 FUNC4 FUNC5 FUNC6 FUNC7 ANALOG TYPE */
LPC_P(0,0, GPIO, SSP1, ENET, SGPIO, R, R, I2S0_TX_WS,I2S1, 0, ND);
LPC_P(0,1, GPIO, SSP1,ENET_ALT,SGPIO, R, R, ENET, I2S1, 0, ND);
LPC_P(1,0, GPIO, CTIN, EMC, R, R, SSP0, SGPIO, R, 0, ND);
LPC_P(1,1, GPIO, CTOUT, EMC, SGPIO, R, SSP0, R, R, 0, ND);
LPC_P(1,2, GPIO, CTOUT, EMC, SGPIO, R, SSP0, R, R, 0, ND);
LPC_P(1,3, GPIO, CTOUT, SGPIO, EMC, USB0, SSP1, R, SDMMC, 0, ND);
LPC_P(1,4, GPIO, CTOUT, SGPIO, EMC, USB0, SSP1, R, SDMMC, 0, ND);
LPC_P(1,5, GPIO, CTOUT, R, EMC, USB0, SSP1, SGPIO, SDMMC, 0, ND);
LPC_P(1,6, GPIO, CTIN, R, EMC, R, R, SGPIO, SDMMC, 0, ND);
LPC_P(1,7, GPIO, UART1, CTOUT, EMC, USB0, R, R, R, 0, ND);
LPC_P(1,8, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
LPC_P(1,9, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
LPC_P(1,10, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
LPC_P(1,11, GPIO, UART1, CTOUT, EMC, R, R, R, SDMMC, 0, ND);
LPC_P(1,12, GPIO, UART1, R, EMC, TIMER0, R, SGPIO, SDMMC, 0, ND);
LPC_P(1,13, GPIO, UART1, R, EMC, TIMER0, R, SGPIO, SDMMC, 0, ND);
LPC_P(1,14, GPIO, UART1, R, EMC, TIMER0, R, SGPIO, R, 0, ND);
LPC_P(1,15, GPIO, UART2, SGPIO, ENET, TIMER0, R, R, R, 0, ND);
LPC_P(1,16, GPIO, UART2, SGPIO,ENET_ALT,TIMER0, R, R, ENET, 0, ND);
LPC_P(1,17, GPIO, UART2, R, ENET, TIMER0, CAN1, SGPIO, R, 0, HD);
LPC_P(1,18, GPIO, UART2, R, ENET, TIMER0, CAN1, SGPIO, R, 0, ND);
LPC_P(1,19, ENET, SSP1, R, R, CLKOUT, R, I2S0_RX_MCLK,I2S1, 0, ND);
LPC_P(1,20, GPIO, SSP1, R, ENET, TIMER0, R, SGPIO, R, 0, ND);
LPC_P(2,0, SGPIO, UART0, EMC, USB0, GPIO, R, TIMER3, ENET, 0, ND);
LPC_P(2,1, SGPIO, UART0, EMC, USB0, GPIO, R, TIMER3, R, 0, ND);
LPC_P(2,2, SGPIO, UART0, EMC, USB0, GPIO, CTIN, TIMER3, R, 0, ND);
LPC_P(2,3, SGPIO, I2C1, UART3, CTIN, GPIO, R, TIMER3, USB0, 0, HD);
LPC_P(2,4, SGPIO, I2C1, UART3, CTIN, GPIO, R, TIMER3, USB0, 0, HD);
LPC_P(2,5, SGPIO, CTIN, USB1, ADCTRIG, GPIO, R, TIMER3, USB0, 0, HD);
LPC_P(2,6, SGPIO, UART0, EMC, USB0, GPIO, CTIN, TIMER3, R, 0, ND);
LPC_P(2,7, GPIO, CTOUT, UART3, EMC, R, R, TIMER3, R, 0, ND);
LPC_P(2,8, SGPIO, CTOUT, UART3, EMC, GPIO, R, R, R, 0, ND);
LPC_P(2,9, GPIO, CTOUT, UART3, EMC, R, R, R, R, 0, ND);
LPC_P(2,10, GPIO, CTOUT, UART2, EMC, R, R, R, R, 0, ND);
LPC_P(2,11, GPIO, CTOUT, UART2, EMC, R, R, R, R, 0, ND);
LPC_P(2,12, GPIO, CTOUT, R, EMC, R, R, R, UART2, 0, ND);
LPC_P(2,13, GPIO, CTIN, R, EMC, R, R, R, UART2, 0, ND);
LPC_P(3,0, I2S0_RX_SCK, I2S0_RX_MCLK, I2S0_TX_SCK, I2S0_TX_MCLK,SSP0,R,R,R, 0, ND);
LPC_P(3,1, I2S0_TX_WS, I2S0_RX_WS,CAN0,USB1,GPIO, R, LCD, R, 0, ND);
LPC_P(3,2, I2S0_TX_SDA, I2S0_RX_SDA,CAN0,USB1,GPIO, R, LCD, R, 0, ND);
LPC_P(3,3, R, SPI, SSP0, SPIFI, CGU_OUT,R, I2S0_TX_MCLK, I2S1, 0, HS);
LPC_P(3,4, GPIO, R, R, SPIFI, UART1, I2S0_TX_WS, I2S1, LCD, 0, ND);
LPC_P(3,5, GPIO, R, R, SPIFI, UART1, I2S0_TX_SDA,I2S1, LCD, 0, ND);
LPC_P(3,6, GPIO, SPI, SSP0, SPIFI, R, SSP0_ALT, R, R, 0, ND);
LPC_P(3,7, R, SPI, SSP0, SPIFI, GPIO, SSP0_ALT, R, R, 0, ND);
LPC_P(3,8, R, SPI, SSP0, SPIFI, GPIO, SSP0_ALT, R, R, 0, ND);
LPC_P(4,0, GPIO, MCTRL, NMI, R, R, LCD, UART3, R, 0, ND);
LPC_P(4,1, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, ENET, ADC0|1, ND);
LPC_P(4,2, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, SGPIO, 0, ND);
LPC_P(4,3, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, SGPIO, ADC0|0, ND);
LPC_P(4,4, GPIO, CTOUT, LCD, R, R, LCD_ALT, UART3, SGPIO, DAC, ND);
LPC_P(4,5, GPIO, CTOUT, LCD, R, R, R, R, SGPIO, 0, ND);
LPC_P(4,6, GPIO, CTOUT, LCD, R, R, R, R, SGPIO, 0, ND);
LPC_P(4,7, LCD, CLKIN, R, R, R, R, I2S1,I2S0_TX_SCK, 0, ND);
LPC_P(4,8, R, CTIN, LCD, R, GPIO, LCD_ALT, CAN1, SGPIO, 0, ND);
LPC_P(4,9, R, CTIN, LCD, R, GPIO, LCD_ALT, CAN1, SGPIO, 0, ND);
LPC_P(4,10, R, CTIN, LCD, R, GPIO, LCD_ALT, R, SGPIO, 0, ND);
LPC_P(5,0, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(5,1, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(5,2, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(5,3, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(5,4, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(5,5, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(5,6, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(5,7, GPIO, MCTRL, EMC, R, UART1, TIMER1, R, R, 0, ND);
LPC_P(6,0, R, I2S0_RX_MCLK,R, R, I2S0_RX_SCK, R, R, R, 0, ND);
LPC_P(6,1, GPIO, EMC, UART0, I2S0_RX_WS, R, TIMER2, R, R, 0, ND);
LPC_P(6,2, GPIO, EMC, UART0, I2S0_RX_SDA, R, TIMER2, R, R, 0, ND);
LPC_P(6,3, GPIO, USB0, SGPIO, EMC, R, TIMER2, R, R, 0, ND);
LPC_P(6,4, GPIO, CTIN, UART0, EMC, R, R, R, R, 0, ND);
LPC_P(6,5, GPIO, CTOUT, UART0, EMC, R, R, R, R, 0, ND);
LPC_P(6,6, GPIO, EMC, SGPIO, USB0, R, TIMER2, R, R, 0, ND);
LPC_P(6,7, R, EMC, SGPIO, USB0, GPIO, TIMER2, R, R, 0, ND);
LPC_P(6,8, R, EMC, SGPIO, USB0, GPIO, TIMER2, R, R, 0, ND);
LPC_P(6,9, GPIO, R, R, EMC, R, TIMER2, R, R, 0, ND);
LPC_P(6,10, GPIO, MCTRL, R, EMC, R, R, R, R, 0, ND);
LPC_P(6,11, GPIO, R, R, EMC, R, TIMER2, R, R, 0, ND);
LPC_P(6,12, GPIO, CTOUT, R, EMC, R, R, R, R, 0, ND);
LPC_P(7,0, GPIO, CTOUT, R, LCD, R, R, R, SGPIO, 0, ND);
LPC_P(7,1, GPIO, CTOUT,I2S0_TX_WS,LCD,LCD_ALT, R, UART2, SGPIO, 0, ND);
LPC_P(7,2, GPIO, CTIN,I2S0_TX_SDA,LCD,LCD_ALT, R, UART2, SGPIO, 0, ND);
LPC_P(7,3, GPIO, CTIN, R, LCD,LCD_ALT, R, R, R, 0, ND);
LPC_P(7,4, GPIO, CTOUT, R, LCD,LCD_ALT, TRACE, R, R, ADC0|4, ND);
LPC_P(7,5, GPIO, CTOUT, R, LCD,LCD_ALT, TRACE, R, R, ADC0|3, ND);
LPC_P(7,6, GPIO, CTOUT, R, LCD, R, TRACE, R, R, 0, ND);
LPC_P(7,7, GPIO, CTOUT, R, LCD, R, TRACE, ENET, SGPIO, ADC1|6, ND);
LPC_P(8,0, GPIO, USB0, R, MCTRL, SGPIO, R, R, TIMER0, 0, HD);
LPC_P(8,1, GPIO, USB0, R, MCTRL, SGPIO, R, R, TIMER0, 0, HD);
LPC_P(8,2, GPIO, USB0, R, MCTRL, SGPIO, R, R, TIMER0, 0, HD);
LPC_P(8,3, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
LPC_P(8,4, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
LPC_P(8,5, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
LPC_P(8,6, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
LPC_P(8,7, GPIO, USB1, R, LCD, LCD_ALT, R, R, TIMER0, 0, ND);
LPC_P(8,8, R, USB1, R, R, R, R,CGU_OUT, I2S1, 0, ND);
LPC_P(9,0, GPIO, MCTRL, R, R, R, ENET, SGPIO, SSP0, 0, ND);
LPC_P(9,1, GPIO, MCTRL, R, R, I2S0_TX_WS,ENET, SGPIO, SSP0, 0, ND);
LPC_P(9,2, GPIO, MCTRL, R, R, I2S0_TX_SDA,ENET,SGPIO, SSP0, 0, ND);
LPC_P(9,3, GPIO, MCTRL, USB1, R, R, ENET, SGPIO, UART3, 0, ND);
LPC_P(9,4, R, MCTRL, USB1, R, GPIO, ENET, SGPIO, UART3, 0, ND);
LPC_P(9,5, R, MCTRL, USB1, R, GPIO, ENET, SGPIO, UART0, 0, ND);
LPC_P(9,6, GPIO, MCTRL, USB1, R, R, ENET, SGPIO, UART0, 0, ND);
LPC_P(a,0, R, R, R, R, R, I2S1, CGU_OUT, R, 0, ND);
LPC_P(a,1, GPIO, QEI, R, UART2, R, R, R, R, 0, HD);
LPC_P(a,2, GPIO, QEI, R, UART2, R, R, R, R, 0, HD);
LPC_P(a,3, GPIO, QEI, R, R, R, R, R, R, 0, HD);
LPC_P(a,4, R, CTOUT, R, EMC, GPIO, R, R, R, 0, ND);
LPC_P(b,0, R, CTOUT, LCD, R, GPIO, R, R, R, 0, ND);
LPC_P(b,1, R, USB1, LCD, R, GPIO, CTOUT, R, R, 0, ND);
LPC_P(b,2, R, USB1, LCD, R, GPIO, CTOUT, R, R, 0, ND);
LPC_P(b,3, R, USB1, LCD, R, GPIO, CTOUT, R, R, 0, ND);
LPC_P(b,4, R, USB1, LCD, R, GPIO, CTIN, R, R, 0, ND);
LPC_P(b,5, R, USB1, LCD, R, GPIO, CTIN, LCD_ALT, R, 0, ND);
LPC_P(b,6, R, USB1, LCD, R, GPIO, CTIN, LCD_ALT, R, ADC0|6, ND);
LPC_P(c,0, R, USB1, R, ENET, LCD, R, R, SDMMC, ADC1|1, ND);
LPC_P(c,1, USB1, R, UART1, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,2, USB1, R, UART1, ENET, GPIO, R, R, SDMMC, 0, ND);
LPC_P(c,3, USB1, R, UART1, ENET, GPIO, R, R, SDMMC, ADC1|0, ND);
LPC_P(c,4, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,5, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,6, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,7, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,8, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,9, R, USB1, R, ENET, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,10, R, USB1, UART1, R, GPIO, R, TIMER3, SDMMC, 0, ND);
LPC_P(c,11, R, USB1, UART1, R, GPIO, R, R, SDMMC, 0, ND);
LPC_P(c,12, R, R, UART1, R, GPIO, SGPIO, I2S0_TX_SDA,SDMMC, 0, ND);
LPC_P(c,13, R, R, UART1, R, GPIO, SGPIO, I2S0_TX_WS, SDMMC, 0, ND);
LPC_P(c,14, R, R, UART1, R, GPIO, SGPIO, ENET, SDMMC, 0, ND);
LPC_P(d,0, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,1, R, R, EMC, R, GPIO, SDMMC, R, SGPIO, 0, ND);
LPC_P(d,2, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,3, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,4, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,5, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,6, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,7, R, CTIN, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,8, R, CTIN, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,9, R, CTOUT, EMC, R, GPIO, R, R, SGPIO, 0, ND);
LPC_P(d,10, R, CTIN, EMC, R, GPIO, R, R, R, 0, ND);
LPC_P(d,11, R, R, EMC, R, GPIO, USB1, CTOUT, R, 0, ND);
LPC_P(d,12, R, R, EMC, R, GPIO, R, CTOUT, R, 0, ND);
LPC_P(d,13, R, CTIN, EMC, R, GPIO, R, CTOUT, R, 0, ND);
LPC_P(d,14, R, R, EMC, R, GPIO, R, CTOUT, R, 0, ND);
LPC_P(d,15, R, R, EMC, R, GPIO, SDMMC, CTOUT, R, 0, ND);
LPC_P(d,16, R, R, EMC, R, GPIO, SDMMC, CTOUT, R, 0, ND);
LPC_P(e,0, R, R, R, EMC, GPIO, CAN1, R, R, 0, ND);
LPC_P(e,1, R, R, R, EMC, GPIO, CAN1, R, R, 0, ND);
LPC_P(e,2,ADCTRIG, CAN0, R, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,3, R, CAN0,ADCTRIG, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,4, R, NMI, R, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,5, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,6, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,7, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,8, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,9, R, CTIN, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,10, R, CTIN, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,11, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,12, R, CTOUT, UART1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,13, R, CTOUT, I2C1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,14, R, R, R, EMC, GPIO, R, R, R, 0, ND);
LPC_P(e,15, R, CTOUT, I2C1, EMC, GPIO, R, R, R, 0, ND);
LPC_P(f,0, SSP0, CLKIN, R, R, R, R, R, I2S1, 0, ND);
LPC_P(f,1, R, R, SSP0, R, GPIO, R, SGPIO, R, 0, ND);
LPC_P(f,2, R, UART3, SSP0, R, GPIO, R, SGPIO, R, 0, ND);
LPC_P(f,3, R, UART3, SSP0, R, GPIO, R, SGPIO, R, 0, ND);
LPC_P(f,4, SSP1, CLKIN, TRACE, R, R, R, I2S0_TX_MCLK,I2S0_RX_SCK, 0, ND);
LPC_P(f,5, R, UART3, SSP1, TRACE, GPIO, R, SGPIO, R, ADC1|4, ND);
LPC_P(f,6, R, UART3, SSP1, TRACE, GPIO, R, SGPIO, I2S1, ADC1|3, ND);
LPC_P(f,7, R, UART3, SSP1, TRACE, GPIO, R, SGPIO, I2S1, ADC1|7, ND);
LPC_P(f,8, R, UART0, CTIN, TRACE, GPIO, R, SGPIO, R, ADC0|2, ND);
LPC_P(f,9, R, UART0, CTOUT, R, GPIO, R, SGPIO, R, ADC1|2, ND);
LPC_P(f,10, R, UART0, R, R, GPIO, R, SDMMC, R, ADC0|5, ND);
LPC_P(f,11, R, UART0, R, R, GPIO, R, SDMMC, R, ADC1|5, ND);
/* Pin Offset FUNC0 FUNC1 FUNC2 FUNC3 FUNC4 FUNC5 FUNC6 FUNC7 ANALOG TYPE */
LPC_N(clk0, 0xc00, EMC, CLKOUT, R, R, SDMMC, EMC_ALT, SSP1, ENET, 0, HS);
LPC_N(clk1, 0xc04, EMC, CLKOUT, R, R, R, CGU_OUT, R, I2S1, 0, HS);
LPC_N(clk2, 0xc08, EMC, CLKOUT, R, R, SDMMC, EMC_ALT,I2S0_TX_MCLK,I2S1, 0, HS);
LPC_N(clk3, 0xc0c, EMC, CLKOUT, R, R, R, CGU_OUT, R, I2S1, 0, HS);
LPC_N(usb1_dm, 0xc80, R, R, R, R, R, R, R, R, 0, USB1);
LPC_N(usb1_dp, 0xc80, R, R, R, R, R, R, R, R, 0, USB1);
LPC_N(i2c0_scl, 0xc84, R, R, R, R, R, R, R, R, 0, I2C0);
LPC_N(i2c0_sda, 0xc84, R, R, R, R, R, R, R, R, 0, I2C0);
#define LPC18XX_PIN_P(port, pin) { \
.number = 0x##port * 32 + pin, \
.name = "p"#port"_"#pin, \
.drv_data = &lpc18xx_pin_p##port##_##pin \
}
/* Pin numbers for special pins */
enum {
PIN_CLK0 = 600,
PIN_CLK1,
PIN_CLK2,
PIN_CLK3,
PIN_USB1_DM,
PIN_USB1_DP,
PIN_I2C0_SCL,
PIN_I2C0_SDA,
};
#define LPC18XX_PIN(pname, n) { \
.number = n, \
.name = #pname, \
.drv_data = &lpc18xx_pin_##pname \
}
static const struct pinctrl_pin_desc lpc18xx_pins[] = {
LPC18XX_PIN_P(0,0),
LPC18XX_PIN_P(0,1),
LPC18XX_PIN_P(1,0),
LPC18XX_PIN_P(1,1),
LPC18XX_PIN_P(1,2),
LPC18XX_PIN_P(1,3),
LPC18XX_PIN_P(1,4),
LPC18XX_PIN_P(1,5),
LPC18XX_PIN_P(1,6),
LPC18XX_PIN_P(1,7),
LPC18XX_PIN_P(1,8),
LPC18XX_PIN_P(1,9),
LPC18XX_PIN_P(1,10),
LPC18XX_PIN_P(1,11),
LPC18XX_PIN_P(1,12),
LPC18XX_PIN_P(1,13),
LPC18XX_PIN_P(1,14),
LPC18XX_PIN_P(1,15),
LPC18XX_PIN_P(1,16),
LPC18XX_PIN_P(1,17),
LPC18XX_PIN_P(1,18),
LPC18XX_PIN_P(1,19),
LPC18XX_PIN_P(1,20),
LPC18XX_PIN_P(2,0),
LPC18XX_PIN_P(2,1),
LPC18XX_PIN_P(2,2),
LPC18XX_PIN_P(2,3),
LPC18XX_PIN_P(2,4),
LPC18XX_PIN_P(2,5),
LPC18XX_PIN_P(2,6),
LPC18XX_PIN_P(2,7),
LPC18XX_PIN_P(2,8),
LPC18XX_PIN_P(2,9),
LPC18XX_PIN_P(2,10),
LPC18XX_PIN_P(2,11),
LPC18XX_PIN_P(2,12),
LPC18XX_PIN_P(2,13),
LPC18XX_PIN_P(3,0),
LPC18XX_PIN_P(3,1),
LPC18XX_PIN_P(3,2),
LPC18XX_PIN_P(3,3),
LPC18XX_PIN_P(3,4),
LPC18XX_PIN_P(3,5),
LPC18XX_PIN_P(3,6),
LPC18XX_PIN_P(3,7),
LPC18XX_PIN_P(3,8),
LPC18XX_PIN_P(4,0),
LPC18XX_PIN_P(4,1),
LPC18XX_PIN_P(4,2),
LPC18XX_PIN_P(4,3),
LPC18XX_PIN_P(4,4),
LPC18XX_PIN_P(4,5),
LPC18XX_PIN_P(4,6),
LPC18XX_PIN_P(4,7),
LPC18XX_PIN_P(4,8),
LPC18XX_PIN_P(4,9),
LPC18XX_PIN_P(4,10),
LPC18XX_PIN_P(5,0),
LPC18XX_PIN_P(5,1),
LPC18XX_PIN_P(5,2),
LPC18XX_PIN_P(5,3),
LPC18XX_PIN_P(5,4),
LPC18XX_PIN_P(5,5),
LPC18XX_PIN_P(5,6),
LPC18XX_PIN_P(5,7),
LPC18XX_PIN_P(6,0),
LPC18XX_PIN_P(6,1),
LPC18XX_PIN_P(6,2),
LPC18XX_PIN_P(6,3),
LPC18XX_PIN_P(6,4),
LPC18XX_PIN_P(6,5),
LPC18XX_PIN_P(6,6),
LPC18XX_PIN_P(6,7),
LPC18XX_PIN_P(6,8),
LPC18XX_PIN_P(6,9),
LPC18XX_PIN_P(6,10),
LPC18XX_PIN_P(6,11),
LPC18XX_PIN_P(6,12),
LPC18XX_PIN_P(7,0),
LPC18XX_PIN_P(7,1),
LPC18XX_PIN_P(7,2),
LPC18XX_PIN_P(7,3),
LPC18XX_PIN_P(7,4),
LPC18XX_PIN_P(7,5),
LPC18XX_PIN_P(7,6),
LPC18XX_PIN_P(7,7),
LPC18XX_PIN_P(8,0),
LPC18XX_PIN_P(8,1),
LPC18XX_PIN_P(8,2),
LPC18XX_PIN_P(8,3),
LPC18XX_PIN_P(8,4),
LPC18XX_PIN_P(8,5),
LPC18XX_PIN_P(8,6),
LPC18XX_PIN_P(8,7),
LPC18XX_PIN_P(8,8),
LPC18XX_PIN_P(9,0),
LPC18XX_PIN_P(9,1),
LPC18XX_PIN_P(9,2),
LPC18XX_PIN_P(9,3),
LPC18XX_PIN_P(9,4),
LPC18XX_PIN_P(9,5),
LPC18XX_PIN_P(9,6),
LPC18XX_PIN_P(a,0),
LPC18XX_PIN_P(a,1),
LPC18XX_PIN_P(a,2),
LPC18XX_PIN_P(a,3),
LPC18XX_PIN_P(a,4),
LPC18XX_PIN_P(b,0),
LPC18XX_PIN_P(b,1),
LPC18XX_PIN_P(b,2),
LPC18XX_PIN_P(b,3),
LPC18XX_PIN_P(b,4),
LPC18XX_PIN_P(b,5),
LPC18XX_PIN_P(b,6),
LPC18XX_PIN_P(c,0),
LPC18XX_PIN_P(c,1),
LPC18XX_PIN_P(c,2),
LPC18XX_PIN_P(c,3),
LPC18XX_PIN_P(c,4),
LPC18XX_PIN_P(c,5),
LPC18XX_PIN_P(c,6),
LPC18XX_PIN_P(c,7),
LPC18XX_PIN_P(c,8),
LPC18XX_PIN_P(c,9),
LPC18XX_PIN_P(c,10),
LPC18XX_PIN_P(c,11),
LPC18XX_PIN_P(c,12),
LPC18XX_PIN_P(c,13),
LPC18XX_PIN_P(c,14),
LPC18XX_PIN_P(d,0),
LPC18XX_PIN_P(d,1),
LPC18XX_PIN_P(d,2),
LPC18XX_PIN_P(d,3),
LPC18XX_PIN_P(d,4),
LPC18XX_PIN_P(d,5),
LPC18XX_PIN_P(d,6),
LPC18XX_PIN_P(d,7),
LPC18XX_PIN_P(d,8),
LPC18XX_PIN_P(d,9),
LPC18XX_PIN_P(d,10),
LPC18XX_PIN_P(d,11),
LPC18XX_PIN_P(d,12),
LPC18XX_PIN_P(d,13),
LPC18XX_PIN_P(d,14),
LPC18XX_PIN_P(d,15),
LPC18XX_PIN_P(d,16),
LPC18XX_PIN_P(e,0),
LPC18XX_PIN_P(e,1),
LPC18XX_PIN_P(e,2),
LPC18XX_PIN_P(e,3),
LPC18XX_PIN_P(e,4),
LPC18XX_PIN_P(e,5),
LPC18XX_PIN_P(e,6),
LPC18XX_PIN_P(e,7),
LPC18XX_PIN_P(e,8),
LPC18XX_PIN_P(e,9),
LPC18XX_PIN_P(e,10),
LPC18XX_PIN_P(e,11),
LPC18XX_PIN_P(e,12),
LPC18XX_PIN_P(e,13),
LPC18XX_PIN_P(e,14),
LPC18XX_PIN_P(e,15),
LPC18XX_PIN_P(f,0),
LPC18XX_PIN_P(f,1),
LPC18XX_PIN_P(f,2),
LPC18XX_PIN_P(f,3),
LPC18XX_PIN_P(f,4),
LPC18XX_PIN_P(f,5),
LPC18XX_PIN_P(f,6),
LPC18XX_PIN_P(f,7),
LPC18XX_PIN_P(f,8),
LPC18XX_PIN_P(f,9),
LPC18XX_PIN_P(f,10),
LPC18XX_PIN_P(f,11),
LPC18XX_PIN(clk0, PIN_CLK0),
LPC18XX_PIN(clk1, PIN_CLK1),
LPC18XX_PIN(clk2, PIN_CLK2),
LPC18XX_PIN(clk3, PIN_CLK3),
LPC18XX_PIN(usb1_dm, PIN_USB1_DM),
LPC18XX_PIN(usb1_dp, PIN_USB1_DP),
LPC18XX_PIN(i2c0_scl, PIN_I2C0_SCL),
LPC18XX_PIN(i2c0_sda, PIN_I2C0_SDA),
};
pinctrl: lpc18xx: Use define directive for PIN_CONFIG_GPIO_PIN_INT Clang warns when one enumerated type is implicitly converted to another: drivers/pinctrl/pinctrl-lpc18xx.c:643:29: warning: implicit conversion from enumeration type 'enum lpc18xx_pin_config_param' to different enumeration type 'enum pin_config_param' [-Wenum-conversion] {"nxp,gpio-pin-interrupt", PIN_CONFIG_GPIO_PIN_INT, 0}, ~ ^~~~~~~~~~~~~~~~~~~~~~~ drivers/pinctrl/pinctrl-lpc18xx.c:648:12: warning: implicit conversion from enumeration type 'enum lpc18xx_pin_config_param' to different enumeration type 'enum pin_config_param' [-Wenum-conversion] PCONFDUMP(PIN_CONFIG_GPIO_PIN_INT, "gpio pin int", NULL, true), ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/linux/pinctrl/pinconf-generic.h:163:11: note: expanded from macro 'PCONFDUMP' .param = a, .display = b, .format = c, .has_arg = d \ ^ 2 warnings generated. It is expected that pinctrl drivers can extend pin_config_param because of the gap between PIN_CONFIG_END and PIN_CONFIG_MAX so this conversion isn't an issue. Most drivers that take advantage of this define the PIN_CONFIG variables as constants, rather than enumerated values. Do the same thing here so that Clang no longer warns. Link: https://github.com/ClangBuiltLinux/linux/issues/140 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-11-01 15:00:08 +00:00
/* PIN_CONFIG_GPIO_PIN_INT: route gpio to the gpio pin interrupt controller */
#define PIN_CONFIG_GPIO_PIN_INT (PIN_CONFIG_END + 1)
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
static const struct pinconf_generic_params lpc18xx_params[] = {
{"nxp,gpio-pin-interrupt", PIN_CONFIG_GPIO_PIN_INT, 0},
};
#ifdef CONFIG_DEBUG_FS
static const struct pin_config_item lpc18xx_conf_items[ARRAY_SIZE(lpc18xx_params)] = {
PCONFDUMP(PIN_CONFIG_GPIO_PIN_INT, "gpio pin int", NULL, true),
};
#endif
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
static int lpc18xx_pconf_get_usb1(enum pin_config_param param, int *arg, u32 reg)
{
pinctrl: lpc18xx: add support for usb1 pinconf The dedicated USB1 pins can be configured with pull-down and for low power mode (suspend). Add support for this in the pinctrl driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14 22:25:27 +00:00
switch (param) {
pinctrl: Introduce MODE group in enum pin_config_param Better to have a MODE group of settings to keep them together when ordered alphabetically. Hence, rename PIN_CONFIG_LOW_POWER_MODE to PIN_CONFIG_MODE_LOW_POWER. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210412140741.39946-2-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-12 14:07:40 +00:00
case PIN_CONFIG_MODE_LOW_POWER:
pinctrl: lpc18xx: add support for usb1 pinconf The dedicated USB1 pins can be configured with pull-down and for low power mode (suspend). Add support for this in the pinctrl driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14 22:25:27 +00:00
if (reg & LPC18XX_SCU_USB1_EPWR)
*arg = 0;
else
*arg = 1;
break;
case PIN_CONFIG_BIAS_DISABLE:
if (reg & LPC18XX_SCU_USB1_EPD)
return -EINVAL;
break;
case PIN_CONFIG_BIAS_PULL_DOWN:
if (reg & LPC18XX_SCU_USB1_EPD)
*arg = 1;
else
return -EINVAL;
break;
default:
return -ENOTSUPP;
}
return 0;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
}
static int lpc18xx_pconf_get_i2c0(enum pin_config_param param, int *arg, u32 reg,
unsigned pin)
{
u8 shift;
if (pin == PIN_I2C0_SCL)
shift = LPC18XX_SCU_I2C0_SCL_SHIFT;
else
shift = LPC18XX_SCU_I2C0_SDA_SHIFT;
switch (param) {
case PIN_CONFIG_INPUT_ENABLE:
if (reg & (LPC18XX_SCU_I2C0_EZI << shift))
*arg = 1;
else
return -EINVAL;
break;
case PIN_CONFIG_SLEW_RATE:
if (reg & (LPC18XX_SCU_I2C0_EHD << shift))
*arg = 1;
else
*arg = 0;
break;
case PIN_CONFIG_INPUT_SCHMITT:
if (reg & (LPC18XX_SCU_I2C0_EFP << shift))
*arg = 3;
else
*arg = 50;
break;
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
if (reg & (LPC18XX_SCU_I2C0_ZIF << shift))
return -EINVAL;
else
*arg = 1;
break;
default:
return -ENOTSUPP;
}
return 0;
}
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
static int lpc18xx_pin_to_gpio(struct pinctrl_dev *pctldev, unsigned pin)
{
struct pinctrl_gpio_range *range;
range = pinctrl_find_gpio_range_from_pin_nolock(pctldev, pin);
if (!range)
return -EINVAL;
return pin - range->pin_base + range->base;
}
static int lpc18xx_get_pintsel(void __iomem *addr, u32 val, int *arg)
{
u32 reg_val;
int i;
reg_val = readl(addr);
for (i = 0; i < LPC18XX_SCU_IRQ_PER_PINTSEL; i++) {
if ((reg_val & LPC18XX_SCU_PINTSEL_VAL_MASK) == val)
return 0;
reg_val >>= BITS_PER_BYTE;
*arg += 1;
}
return -EINVAL;
}
static u32 lpc18xx_gpio_to_pintsel_val(int gpio)
{
unsigned int gpio_port, gpio_pin;
gpio_port = gpio / LPC18XX_GPIO_PINS_PER_PORT;
gpio_pin = gpio % LPC18XX_GPIO_PINS_PER_PORT;
return gpio_pin | (gpio_port << LPC18XX_SCU_PINTSEL_PORT_SHIFT);
}
static int lpc18xx_pconf_get_gpio_pin_int(struct pinctrl_dev *pctldev,
int *arg, unsigned pin)
{
struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
int gpio, ret;
u32 val;
gpio = lpc18xx_pin_to_gpio(pctldev, pin);
if (gpio < 0)
return -ENOTSUPP;
val = lpc18xx_gpio_to_pintsel_val(gpio);
/*
* Check if this pin has been enabled as a interrupt in any of the two
* PINTSEL registers. *arg indicates which interrupt number (0-7).
*/
*arg = 0;
ret = lpc18xx_get_pintsel(scu->base + LPC18XX_SCU_PINTSEL0, val, arg);
if (ret == 0)
return ret;
return lpc18xx_get_pintsel(scu->base + LPC18XX_SCU_PINTSEL1, val, arg);
}
static int lpc18xx_pconf_get_pin(struct pinctrl_dev *pctldev, unsigned param,
int *arg, u32 reg, unsigned pin,
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
struct lpc18xx_pin_caps *pin_cap)
{
switch (param) {
case PIN_CONFIG_BIAS_DISABLE:
if ((!(reg & LPC18XX_SCU_PIN_EPD)) && (reg & LPC18XX_SCU_PIN_EPUN))
;
else
return -EINVAL;
break;
case PIN_CONFIG_BIAS_PULL_UP:
if (reg & LPC18XX_SCU_PIN_EPUN)
return -EINVAL;
else
*arg = 1;
break;
case PIN_CONFIG_BIAS_PULL_DOWN:
if (reg & LPC18XX_SCU_PIN_EPD)
*arg = 1;
else
return -EINVAL;
break;
case PIN_CONFIG_INPUT_ENABLE:
if (reg & LPC18XX_SCU_PIN_EZI)
*arg = 1;
else
return -EINVAL;
break;
case PIN_CONFIG_SLEW_RATE:
if (pin_cap->type == TYPE_HD)
return -ENOTSUPP;
if (reg & LPC18XX_SCU_PIN_EHS)
*arg = 1;
else
*arg = 0;
break;
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
if (reg & LPC18XX_SCU_PIN_ZIF)
return -EINVAL;
else
*arg = 1;
break;
case PIN_CONFIG_DRIVE_STRENGTH:
if (pin_cap->type != TYPE_HD)
return -ENOTSUPP;
*arg = (reg & LPC18XX_SCU_PIN_EHD_MASK) >> LPC18XX_SCU_PIN_EHD_POS;
switch (*arg) {
case 3: *arg += 5;
pinctrl: lpc18xx: Use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200716212109.GA17525@embeddedor Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 21:21:09 +00:00
fallthrough;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
case 2: *arg += 5;
pinctrl: lpc18xx: Use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200716212109.GA17525@embeddedor Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 21:21:09 +00:00
fallthrough;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
case 1: *arg += 3;
pinctrl: lpc18xx: Use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200716212109.GA17525@embeddedor Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 21:21:09 +00:00
fallthrough;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
case 0: *arg += 4;
}
break;
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
case PIN_CONFIG_GPIO_PIN_INT:
return lpc18xx_pconf_get_gpio_pin_int(pctldev, arg, pin);
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
default:
return -ENOTSUPP;
}
return 0;
}
pinctrl: lpc18xx: create pin cap lookup helper Both pconf_get_pin and pconf_set_pin needs to lookup pin cap based on the pin number. Create a common helper function that both functions can use that also handles the case where no pin number is found in the pins array. This also fixes a small bug in pconf_get_pin where pconf_get_i2c0 would use the pins array index rather than the pin number. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-06 17:11:21 +00:00
static struct lpc18xx_pin_caps *lpc18xx_get_pin_caps(unsigned pin)
{
int i;
for (i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) {
if (lpc18xx_pins[i].number == pin)
return lpc18xx_pins[i].drv_data;
}
return NULL;
}
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
static int lpc18xx_pconf_get(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long *config)
{
struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
enum pin_config_param param = pinconf_to_config_param(*config);
struct lpc18xx_pin_caps *pin_cap;
int ret, arg = 0;
u32 reg;
pinctrl: lpc18xx: create pin cap lookup helper Both pconf_get_pin and pconf_set_pin needs to lookup pin cap based on the pin number. Create a common helper function that both functions can use that also handles the case where no pin number is found in the pins array. This also fixes a small bug in pconf_get_pin where pconf_get_i2c0 would use the pins array index rather than the pin number. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-06 17:11:21 +00:00
pin_cap = lpc18xx_get_pin_caps(pin);
if (!pin_cap)
return -EINVAL;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
reg = readl(scu->base + pin_cap->offset);
if (pin_cap->type == TYPE_I2C0)
ret = lpc18xx_pconf_get_i2c0(param, &arg, reg, pin);
else if (pin_cap->type == TYPE_USB1)
ret = lpc18xx_pconf_get_usb1(param, &arg, reg);
else
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
ret = lpc18xx_pconf_get_pin(pctldev, param, &arg, reg, pin, pin_cap);
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
if (ret < 0)
return ret;
*config = pinconf_to_config_packed(param, (u16)arg);
return 0;
}
static int lpc18xx_pconf_set_usb1(struct pinctrl_dev *pctldev,
enum pin_config_param param,
pinctrl: Widen the generic pinconf argument from 16 to 24 bits The current pinconf packed format allows only 16-bit argument limiting the maximum value 65535. For most types this is enough. However, debounce time can be in range of hundreths of milliseconds in case of mechanical switches so we cannot represent the worst case using the current format. In order to support larger values change the packed format so that the lower 8 bits are used as type which leaves 24 bits for the argument. This allows representing values up to 16777215 and debounce times up to 16 seconds. We also convert the existing users to use 32-bit integer when extracting argument from the packed configuration value. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-23 12:34:32 +00:00
u32 param_val, u32 *reg)
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
{
pinctrl: lpc18xx: add support for usb1 pinconf The dedicated USB1 pins can be configured with pull-down and for low power mode (suspend). Add support for this in the pinctrl driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14 22:25:27 +00:00
switch (param) {
pinctrl: Introduce MODE group in enum pin_config_param Better to have a MODE group of settings to keep them together when ordered alphabetically. Hence, rename PIN_CONFIG_LOW_POWER_MODE to PIN_CONFIG_MODE_LOW_POWER. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210412140741.39946-2-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-04-12 14:07:40 +00:00
case PIN_CONFIG_MODE_LOW_POWER:
pinctrl: lpc18xx: add support for usb1 pinconf The dedicated USB1 pins can be configured with pull-down and for low power mode (suspend). Add support for this in the pinctrl driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14 22:25:27 +00:00
if (param_val)
*reg &= ~LPC18XX_SCU_USB1_EPWR;
else
*reg |= LPC18XX_SCU_USB1_EPWR;
break;
case PIN_CONFIG_BIAS_DISABLE:
*reg &= ~LPC18XX_SCU_USB1_EPD;
break;
case PIN_CONFIG_BIAS_PULL_DOWN:
*reg |= LPC18XX_SCU_USB1_EPD;
break;
default:
dev_err(pctldev->dev, "Property not supported\n");
return -ENOTSUPP;
}
return 0;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
}
static int lpc18xx_pconf_set_i2c0(struct pinctrl_dev *pctldev,
enum pin_config_param param,
pinctrl: Widen the generic pinconf argument from 16 to 24 bits The current pinconf packed format allows only 16-bit argument limiting the maximum value 65535. For most types this is enough. However, debounce time can be in range of hundreths of milliseconds in case of mechanical switches so we cannot represent the worst case using the current format. In order to support larger values change the packed format so that the lower 8 bits are used as type which leaves 24 bits for the argument. This allows representing values up to 16777215 and debounce times up to 16 seconds. We also convert the existing users to use 32-bit integer when extracting argument from the packed configuration value. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-23 12:34:32 +00:00
u32 param_val, u32 *reg,
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
unsigned pin)
{
u8 shift;
if (pin == PIN_I2C0_SCL)
shift = LPC18XX_SCU_I2C0_SCL_SHIFT;
else
shift = LPC18XX_SCU_I2C0_SDA_SHIFT;
switch (param) {
case PIN_CONFIG_INPUT_ENABLE:
if (param_val)
*reg |= (LPC18XX_SCU_I2C0_EZI << shift);
else
*reg &= ~(LPC18XX_SCU_I2C0_EZI << shift);
break;
case PIN_CONFIG_SLEW_RATE:
if (param_val)
*reg |= (LPC18XX_SCU_I2C0_EHD << shift);
else
*reg &= ~(LPC18XX_SCU_I2C0_EHD << shift);
break;
case PIN_CONFIG_INPUT_SCHMITT:
if (param_val == 3)
*reg |= (LPC18XX_SCU_I2C0_EFP << shift);
else if (param_val == 50)
*reg &= ~(LPC18XX_SCU_I2C0_EFP << shift);
else
return -ENOTSUPP;
break;
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
pinctrl: lpc18xx: fix schmitt trigger setup The param_val variable is what determines if schmitt trigger is enabled on a pin or not. A typo here mean that schmitt trigger was always enabled for standard and i2c pins. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14 22:25:26 +00:00
if (param_val)
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
*reg &= ~(LPC18XX_SCU_I2C0_ZIF << shift);
else
*reg |= (LPC18XX_SCU_I2C0_ZIF << shift);
break;
default:
dev_err(pctldev->dev, "Property not supported\n");
return -ENOTSUPP;
}
return 0;
}
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
static int lpc18xx_pconf_set_gpio_pin_int(struct pinctrl_dev *pctldev,
pinctrl: Widen the generic pinconf argument from 16 to 24 bits The current pinconf packed format allows only 16-bit argument limiting the maximum value 65535. For most types this is enough. However, debounce time can be in range of hundreths of milliseconds in case of mechanical switches so we cannot represent the worst case using the current format. In order to support larger values change the packed format so that the lower 8 bits are used as type which leaves 24 bits for the argument. This allows representing values up to 16777215 and debounce times up to 16 seconds. We also convert the existing users to use 32-bit integer when extracting argument from the packed configuration value. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-23 12:34:32 +00:00
u32 param_val, unsigned pin)
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
{
struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
u32 val, reg_val, reg_offset = LPC18XX_SCU_PINTSEL0;
int gpio;
if (param_val >= LPC18XX_GPIO_PIN_INT_MAX)
return -EINVAL;
gpio = lpc18xx_pin_to_gpio(pctldev, pin);
if (gpio < 0)
return -ENOTSUPP;
val = lpc18xx_gpio_to_pintsel_val(gpio);
reg_offset += (param_val / LPC18XX_SCU_IRQ_PER_PINTSEL) * sizeof(u32);
reg_val = readl(scu->base + reg_offset);
reg_val &= ~LPC18XX_SCU_PINTSEL_VAL(LPC18XX_SCU_PINTSEL_VAL_MASK, param_val);
reg_val |= LPC18XX_SCU_PINTSEL_VAL(val, param_val);
writel(reg_val, scu->base + reg_offset);
return 0;
}
static int lpc18xx_pconf_set_pin(struct pinctrl_dev *pctldev, unsigned param,
pinctrl: Widen the generic pinconf argument from 16 to 24 bits The current pinconf packed format allows only 16-bit argument limiting the maximum value 65535. For most types this is enough. However, debounce time can be in range of hundreths of milliseconds in case of mechanical switches so we cannot represent the worst case using the current format. In order to support larger values change the packed format so that the lower 8 bits are used as type which leaves 24 bits for the argument. This allows representing values up to 16777215 and debounce times up to 16 seconds. We also convert the existing users to use 32-bit integer when extracting argument from the packed configuration value. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-23 12:34:32 +00:00
u32 param_val, u32 *reg, unsigned pin,
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
struct lpc18xx_pin_caps *pin_cap)
{
switch (param) {
case PIN_CONFIG_BIAS_DISABLE:
*reg &= ~LPC18XX_SCU_PIN_EPD;
*reg |= LPC18XX_SCU_PIN_EPUN;
break;
case PIN_CONFIG_BIAS_PULL_UP:
*reg &= ~LPC18XX_SCU_PIN_EPUN;
break;
case PIN_CONFIG_BIAS_PULL_DOWN:
*reg |= LPC18XX_SCU_PIN_EPD;
break;
case PIN_CONFIG_INPUT_ENABLE:
if (param_val)
*reg |= LPC18XX_SCU_PIN_EZI;
else
*reg &= ~LPC18XX_SCU_PIN_EZI;
break;
case PIN_CONFIG_SLEW_RATE:
if (pin_cap->type == TYPE_HD) {
dev_err(pctldev->dev, "Slew rate unsupported on high-drive pins\n");
return -ENOTSUPP;
}
if (param_val == 0)
*reg &= ~LPC18XX_SCU_PIN_EHS;
else
*reg |= LPC18XX_SCU_PIN_EHS;
break;
case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
pinctrl: lpc18xx: fix schmitt trigger setup The param_val variable is what determines if schmitt trigger is enabled on a pin or not. A typo here mean that schmitt trigger was always enabled for standard and i2c pins. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-14 22:25:26 +00:00
if (param_val)
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
*reg &= ~LPC18XX_SCU_PIN_ZIF;
else
*reg |= LPC18XX_SCU_PIN_ZIF;
break;
case PIN_CONFIG_DRIVE_STRENGTH:
if (pin_cap->type != TYPE_HD) {
dev_err(pctldev->dev, "Drive strength available only on high-drive pins\n");
return -ENOTSUPP;
}
*reg &= ~LPC18XX_SCU_PIN_EHD_MASK;
switch (param_val) {
case 20: param_val -= 5;
pinctrl: lpc18xx: Use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200716212109.GA17525@embeddedor Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 21:21:09 +00:00
fallthrough;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
case 14: param_val -= 5;
pinctrl: lpc18xx: Use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200716212109.GA17525@embeddedor Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 21:21:09 +00:00
fallthrough;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
case 8: param_val -= 3;
pinctrl: lpc18xx: Use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20200716212109.GA17525@embeddedor Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 21:21:09 +00:00
fallthrough;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
case 4: param_val -= 4;
break;
default:
dev_err(pctldev->dev, "Drive strength %u unsupported\n", param_val);
return -ENOTSUPP;
}
*reg |= param_val << LPC18XX_SCU_PIN_EHD_POS;
break;
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
case PIN_CONFIG_GPIO_PIN_INT:
return lpc18xx_pconf_set_gpio_pin_int(pctldev, param_val, pin);
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
default:
dev_err(pctldev->dev, "Property not supported\n");
return -ENOTSUPP;
}
return 0;
}
static int lpc18xx_pconf_set(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long *configs, unsigned num_configs)
{
struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
struct lpc18xx_pin_caps *pin_cap;
enum pin_config_param param;
pinctrl: Widen the generic pinconf argument from 16 to 24 bits The current pinconf packed format allows only 16-bit argument limiting the maximum value 65535. For most types this is enough. However, debounce time can be in range of hundreths of milliseconds in case of mechanical switches so we cannot represent the worst case using the current format. In order to support larger values change the packed format so that the lower 8 bits are used as type which leaves 24 bits for the argument. This allows representing values up to 16777215 and debounce times up to 16 seconds. We also convert the existing users to use 32-bit integer when extracting argument from the packed configuration value. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-23 12:34:32 +00:00
u32 param_val;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
u32 reg;
int ret;
int i;
pinctrl: lpc18xx: create pin cap lookup helper Both pconf_get_pin and pconf_set_pin needs to lookup pin cap based on the pin number. Create a common helper function that both functions can use that also handles the case where no pin number is found in the pins array. This also fixes a small bug in pconf_get_pin where pconf_get_i2c0 would use the pins array index rather than the pin number. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-06 17:11:21 +00:00
pin_cap = lpc18xx_get_pin_caps(pin);
if (!pin_cap)
return -EINVAL;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
reg = readl(scu->base + pin_cap->offset);
for (i = 0; i < num_configs; i++) {
param = pinconf_to_config_param(configs[i]);
param_val = pinconf_to_config_argument(configs[i]);
if (pin_cap->type == TYPE_I2C0)
ret = lpc18xx_pconf_set_i2c0(pctldev, param, param_val, &reg, pin);
else if (pin_cap->type == TYPE_USB1)
ret = lpc18xx_pconf_set_usb1(pctldev, param, param_val, &reg);
else
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
ret = lpc18xx_pconf_set_pin(pctldev, param, param_val, &reg, pin, pin_cap);
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
if (ret)
return ret;
}
writel(reg, scu->base + pin_cap->offset);
return 0;
}
static const struct pinconf_ops lpc18xx_pconf_ops = {
.is_generic = true,
.pin_config_get = lpc18xx_pconf_get,
.pin_config_set = lpc18xx_pconf_set,
};
static int lpc18xx_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
{
return ARRAY_SIZE(lpc18xx_function_names);
}
static const char *lpc18xx_pmx_get_func_name(struct pinctrl_dev *pctldev,
unsigned function)
{
return lpc18xx_function_names[function];
}
static int lpc18xx_pmx_get_func_groups(struct pinctrl_dev *pctldev,
unsigned function,
const char *const **groups,
unsigned *const num_groups)
{
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
*groups = scu->func[function].groups;
*num_groups = scu->func[function].ngroups;
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
return 0;
}
static int lpc18xx_pmx_set(struct pinctrl_dev *pctldev, unsigned function,
unsigned group)
{
struct lpc18xx_scu_data *scu = pinctrl_dev_get_drvdata(pctldev);
struct lpc18xx_pin_caps *pin = lpc18xx_pins[group].drv_data;
int func;
u32 reg;
/* Dedicated USB1 and I2C0 pins doesn't support muxing */
if (pin->type == TYPE_USB1) {
if (function == FUNC_USB1)
return 0;
goto fail;
}
if (pin->type == TYPE_I2C0) {
if (function == FUNC_I2C0)
return 0;
goto fail;
}
if (function == FUNC_ADC && (pin->analog & LPC18XX_ANALOG_PIN)) {
u32 offset;
writel(LPC18XX_SCU_ANALOG_PIN_CFG, scu->base + pin->offset);
if (LPC18XX_ANALOG_ADC(pin->analog) == 0)
offset = LPC18XX_SCU_REG_ENAIO0;
else
offset = LPC18XX_SCU_REG_ENAIO1;
reg = readl(scu->base + offset);
reg |= pin->analog & LPC18XX_ANALOG_BIT_MASK;
writel(reg, scu->base + offset);
return 0;
}
if (function == FUNC_DAC && (pin->analog & LPC18XX_ANALOG_PIN)) {
writel(LPC18XX_SCU_ANALOG_PIN_CFG, scu->base + pin->offset);
reg = readl(scu->base + LPC18XX_SCU_REG_ENAIO2);
reg |= LPC18XX_SCU_REG_ENAIO2_DAC;
writel(reg, scu->base + LPC18XX_SCU_REG_ENAIO2);
return 0;
}
for (func = 0; func < LPC18XX_SCU_FUNC_PER_PIN; func++) {
if (function == pin->functions[func])
break;
}
if (func >= LPC18XX_SCU_FUNC_PER_PIN)
goto fail;
reg = readl(scu->base + pin->offset);
reg &= ~LPC18XX_SCU_PIN_MODE_MASK;
writel(reg | func, scu->base + pin->offset);
return 0;
fail:
dev_err(pctldev->dev, "Pin %s can't be %s\n", lpc18xx_pins[group].name,
lpc18xx_function_names[function]);
return -EINVAL;
}
static const struct pinmux_ops lpc18xx_pmx_ops = {
.get_functions_count = lpc18xx_pmx_get_funcs_count,
.get_function_name = lpc18xx_pmx_get_func_name,
.get_function_groups = lpc18xx_pmx_get_func_groups,
.set_mux = lpc18xx_pmx_set,
};
static int lpc18xx_pctl_get_groups_count(struct pinctrl_dev *pctldev)
{
return ARRAY_SIZE(lpc18xx_pins);
}
static const char *lpc18xx_pctl_get_group_name(struct pinctrl_dev *pctldev,
unsigned group)
{
return lpc18xx_pins[group].name;
}
static int lpc18xx_pctl_get_group_pins(struct pinctrl_dev *pctldev,
unsigned group,
const unsigned **pins,
unsigned *num_pins)
{
*pins = &lpc18xx_pins[group].number;
*num_pins = 1;
return 0;
}
static const struct pinctrl_ops lpc18xx_pctl_ops = {
.get_groups_count = lpc18xx_pctl_get_groups_count,
.get_group_name = lpc18xx_pctl_get_group_name,
.get_group_pins = lpc18xx_pctl_get_group_pins,
.dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
pinctrl: Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map Rename pinctrl_utils_dt_free_map to pinctrl_utils_free_map, since it does not depend on device tree despite the current name. This will enforce a consistent naming in pinctr-utils.c and will make it clear it can be called from outside device tree (e.g. from ACPI handling code). Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-03-31 11:44:42 +00:00
.dt_free_map = pinctrl_utils_free_map,
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
};
static struct pinctrl_desc lpc18xx_scu_desc = {
.name = "lpc18xx/43xx-scu",
.pins = lpc18xx_pins,
.npins = ARRAY_SIZE(lpc18xx_pins),
.pctlops = &lpc18xx_pctl_ops,
.pmxops = &lpc18xx_pmx_ops,
.confops = &lpc18xx_pconf_ops,
pinctrl: lpc18xx: add nxp,gpio-pin-interrupt property Add support for setting up GPIO pin interrupts in the lpc18xx pinctrl driver. The LPC18xx SCU contain two registers that sets up the signal routing to the GPIO pin interrupt (PINT) block. The routing uses the GPIO namespace and not the pin namespace so a lookup is preformed on the pin. Routing configuration is done in the device tree by using the new nxp,gpio-pin-interrupt property. This property takes single parameter which sets the PINT hwirq for the GPIO. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-25 21:44:38 +00:00
.num_custom_params = ARRAY_SIZE(lpc18xx_params),
.custom_params = lpc18xx_params,
#ifdef CONFIG_DEBUG_FS
.custom_conf_items = lpc18xx_conf_items,
#endif
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
.owner = THIS_MODULE,
};
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
static bool lpc18xx_valid_pin_function(unsigned pin, unsigned function)
{
struct lpc18xx_pin_caps *p = lpc18xx_pins[pin].drv_data;
int i;
if (function == FUNC_DAC && p->analog == DAC)
return true;
if (function == FUNC_ADC && p->analog)
return true;
if (function == FUNC_I2C0 && p->type == TYPE_I2C0)
return true;
if (function == FUNC_USB1 && p->type == TYPE_USB1)
return true;
for (i = 0; i < LPC18XX_SCU_FUNC_PER_PIN; i++) {
if (function == p->functions[i])
return true;
}
return false;
}
static int lpc18xx_create_group_func_map(struct device *dev,
struct lpc18xx_scu_data *scu)
{
u16 pins[ARRAY_SIZE(lpc18xx_pins)];
int func, ngroups, i;
pinctrl: lpc18xx: ensure ngroups is initialized at correct place The initialization of ngroups is occurring at the end of the first iteration of the outer loop, which means that the assignment pins[ngroups++] = i is potentially indexing into a region outside of array pins because ngroups is not initialized. Instead, initialize ngroups in the inner loop before the first inner loop iteration. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-24 17:32:50 +00:00
for (func = 0; func < FUNC_MAX; func++) {
for (ngroups = 0, i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) {
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
if (lpc18xx_valid_pin_function(i, func))
pins[ngroups++] = i;
}
scu->func[func].ngroups = ngroups;
treewide: devm_kzalloc() -> devm_kcalloc() The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc(). This patch replaces cases of: devm_kzalloc(handle, a * b, gfp) with: devm_kcalloc(handle, a * b, gfp) as well as handling cases of: devm_kzalloc(handle, a * b * c, gfp) with: devm_kzalloc(handle, array3_size(a, b, c), gfp) as it's slightly less ugly than: devm_kcalloc(handle, array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: devm_kzalloc(handle, 4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. Some manual whitespace fixes were needed in this patch, as Coccinelle really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...". The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ expression HANDLE; type TYPE; expression THING, E; @@ ( devm_kzalloc(HANDLE, - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | devm_kzalloc(HANDLE, - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression HANDLE; expression COUNT; typedef u8; typedef __u8; @@ ( devm_kzalloc(HANDLE, - sizeof(u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ expression HANDLE; type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ expression HANDLE; identifier SIZE, COUNT; @@ - devm_kzalloc + devm_kcalloc (HANDLE, - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression HANDLE; expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression HANDLE; expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ expression HANDLE; identifier STRIDE, SIZE, COUNT; @@ ( devm_kzalloc(HANDLE, - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression HANDLE; expression E1, E2, E3; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression HANDLE; expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, sizeof(THING) * C2, ...) | devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...) | devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, C1 * C2, ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * E2 + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * (E2) + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 21:07:58 +00:00
scu->func[func].groups = devm_kcalloc(dev,
ngroups, sizeof(char *),
GFP_KERNEL);
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
if (!scu->func[func].groups)
return -ENOMEM;
for (i = 0; i < ngroups; i++)
scu->func[func].groups[i] = lpc18xx_pins[pins[i]].name;
}
return 0;
}
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
static int lpc18xx_scu_probe(struct platform_device *pdev)
{
struct lpc18xx_scu_data *scu;
int ret;
scu = devm_kzalloc(&pdev->dev, sizeof(*scu), GFP_KERNEL);
if (!scu)
return -ENOMEM;
pinctrl: use devm_platform_ioremap_resource() to simplify code devm_platform_ioremap_resource() internally have platform_get_resource() and devm_ioremap_resource() in it. So instead of calling them separately use devm_platform_ioremap_resource() directly. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20191104142654.39256-1-yuehaibing@huawei.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-11-04 14:26:54 +00:00
scu->base = devm_platform_ioremap_resource(pdev, 0);
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
if (IS_ERR(scu->base))
return PTR_ERR(scu->base);
scu->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(scu->clk)) {
dev_err(&pdev->dev, "Input clock not found.\n");
return PTR_ERR(scu->clk);
}
pinctrl: lpc18xx: add the missing group function map Add the required group function map and fill it at probe using the pin capabilities information already present in the driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-05-14 12:45:58 +00:00
ret = lpc18xx_create_group_func_map(&pdev->dev, scu);
if (ret) {
dev_err(&pdev->dev, "Unable to create group func map.\n");
return ret;
}
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
ret = clk_prepare_enable(scu->clk);
if (ret) {
dev_err(&pdev->dev, "Unable to enable clock.\n");
return ret;
}
platform_set_drvdata(pdev, scu);
pinctrl: lpc18xx: Use devm_pinctrl_register() for pinctrl registration Use devm_pinctrl_register() for pin control registration. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Cc: Joachim Eastwood <manabian@gmail.com> Acked-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-02-24 09:14:07 +00:00
scu->pctl = devm_pinctrl_register(&pdev->dev, &lpc18xx_scu_desc, scu);
pinctrl: make pinctrl_register() return proper error code Currently, pinctrl_register() just returns NULL on error, so the callers can not know the exact reason of the failure. Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some -ENOMEM on error of pinctrl_register(), although the error code might be different from the real cause of the error. This commit reworks pinctrl_register() to return the appropriate error code and modifies all of the pinctrl drivers to use IS_ERR() for the error checking and PTR_ERR() for getting the error code. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Lee Jones <lee@kernel.org> Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Ray Jui <rjui@broadcom.com> Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com> Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com> Acked-by: Wei Chen <Wei.Chen@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-06-09 04:01:16 +00:00
if (IS_ERR(scu->pctl)) {
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
dev_err(&pdev->dev, "Could not register pinctrl driver\n");
clk_disable_unprepare(scu->clk);
pinctrl: make pinctrl_register() return proper error code Currently, pinctrl_register() just returns NULL on error, so the callers can not know the exact reason of the failure. Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some -ENOMEM on error of pinctrl_register(), although the error code might be different from the real cause of the error. This commit reworks pinctrl_register() to return the appropriate error code and modifies all of the pinctrl drivers to use IS_ERR() for the error checking and PTR_ERR() for getting the error code. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Lee Jones <lee@kernel.org> Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Ray Jui <rjui@broadcom.com> Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com> Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com> Acked-by: Wei Chen <Wei.Chen@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-06-09 04:01:16 +00:00
return PTR_ERR(scu->pctl);
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
}
return 0;
}
static const struct of_device_id lpc18xx_scu_match[] = {
{ .compatible = "nxp,lpc1850-scu" },
{},
};
static struct platform_driver lpc18xx_scu_driver = {
.probe = lpc18xx_scu_probe,
.driver = {
.name = "lpc18xx-scu",
.of_match_table = lpc18xx_scu_match,
pinctrl: lpc18xx: make it explicitly non-modular The Kconfig currently controlling compilation of this code is: config PINCTRL_LPC18XX bool "NXP LPC18XX/43XX SCU pinctrl driver" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. We explicitly disallow a driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Joachim Eastwood <manabian@gmail.com> Cc: linux-gpio@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-07 02:43:03 +00:00
.suppress_bind_attrs = true,
pinctrl: add lpc18xx pinctrl driver Pinctrl driver for the System Control Unit (SCU) found on NXP LPC18xx/43xx devices. Driver uses the generic pinctrl DT bindings for multiplexing and property settings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-04-27 22:14:08 +00:00
},
};
pinctrl: lpc18xx: make it explicitly non-modular The Kconfig currently controlling compilation of this code is: config PINCTRL_LPC18XX bool "NXP LPC18XX/43XX SCU pinctrl driver" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. We explicitly disallow a driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Joachim Eastwood <manabian@gmail.com> Cc: linux-gpio@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-07 02:43:03 +00:00
builtin_platform_driver(lpc18xx_scu_driver);
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