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linux-stable/arch/arm/mach-pxa/spitz.c
Linus Walleij 1a6d8fab9d Input: ads7846 - Convert to use software nodes 
[ Upstream commit 767d83361a ]

The Nokia 770 is using GPIOs from the global numberspace on the
CBUS node to pass down to the LCD controller. This regresses when we
let the OMAP GPIO driver use dynamic GPIO base.

The Nokia 770 now has dynamic allocation of IRQ numbers, so this
needs to be fixed for it to work.

As this is the only user of LCD MIPID we can easily augment the
driver to use a GPIO descriptor instead and resolve the issue.

The platform data .shutdown() callback wasn't even used in the
code, but we encode a shutdown asserting RESET in the remove()
callback for completeness sake.

The CBUS also has the ADS7846 touchscreen attached.

Populate the devices on the Nokia 770 CBUS I2C using software
nodes instead of platform data quirks. This includes the LCD
and the ADS7846 touchscreen so the conversion just brings the LCD
along with it as software nodes is an all-or-nothing design
pattern.

The ADS7846 has some limited support for using GPIO descriptors,
let's convert it over completely to using device properties and then
fix all remaining boardfile users to provide all platform data using
software nodes.

Dump the of includes and of_match_ptr() in the ADS7846 driver as part
of the job.

Since we have to move ADS7846 over to obtaining the GPIOs it is
using exclusively from descriptors, we provide descriptor tables
for the two remaining in-kernel boardfiles using ADS7846:

- PXA Spitz
- MIPS Alchemy DB1000 development board

It was too hard for me to include software node conversion of
these two remaining users at this time: the spitz is using a
hscync callback in the platform data that would require further
GPIO descriptor conversion of the Spitz, and moving the hsync
callback down into the driver: it will just become too big of
a job, but it can be done separately.

The MIPS Alchemy DB1000 is simply something I cannot test, so take
the easier approach of just providing some GPIO descriptors in
this case as I don't want the patch to grow too intrusive.

As we see that several device trees have incorrect polarity flags
and just expect to bypass the gpiolib polarity handling, fix up
all device trees too, in a separate patch.

Suggested-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Fixes: 92bf78b33b ("gpio: omap: use dynamic allocation of base")
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-19 16:35:47 +02:00

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Support for Sharp SL-Cxx00 Series of PDAs
* Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
*
* Copyright (c) 2005 Richard Purdie
*
* Based on Sharp's 2.4 kernel patches/lubbock.c
*/
#include <linux/kernel.h>
#include <linux/module.h> /* symbol_get ; symbol_put */
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio_keys.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/leds.h>
#include <linux/i2c.h>
#include <linux/platform_data/i2c-pxa.h>
#include <linux/platform_data/pca953x.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/corgi_lcd.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/mtd/sharpsl.h>
#include <linux/mtd/physmap.h>
#include <linux/input-event-codes.h>
#include <linux/input/matrix_keypad.h>
#include <linux/regulator/machine.h>
#include <linux/io.h>
#include <linux/reboot.h>
#include <linux/memblock.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/hardware/scoop.h>
#include "pxa27x.h"
#include "pxa27x-udc.h"
#include "reset.h"
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/video-pxafb.h>
#include "spitz.h"
#include "sharpsl_pm.h"
#include "smemc.h"
#include "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long spitz_pin_config[] __initdata = {
/* Chip Selects */
GPIO78_nCS_2, /* SCOOP #2 */
GPIO79_nCS_3, /* NAND */
GPIO80_nCS_4, /* SCOOP #1 */
/* LCD - 16bpp Active TFT */
GPIOxx_LCD_TFT_16BPP,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
GPIO104_PSKTSEL,
/* I2S */
GPIO28_I2S_BITCLK_OUT,
GPIO29_I2S_SDATA_IN,
GPIO30_I2S_SDATA_OUT,
GPIO31_I2S_SYNC,
/* MMC */
GPIO32_MMC_CLK,
GPIO112_MMC_CMD,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
/* GPIOs */
GPIO9_GPIO, /* SPITZ_GPIO_nSD_DETECT */
GPIO16_GPIO, /* SPITZ_GPIO_SYNC */
GPIO81_GPIO, /* SPITZ_GPIO_nSD_WP */
GPIO41_GPIO, /* SPITZ_GPIO_USB_CONNECT */
GPIO37_GPIO, /* SPITZ_GPIO_USB_HOST */
GPIO35_GPIO, /* SPITZ_GPIO_USB_DEVICE */
GPIO22_GPIO, /* SPITZ_GPIO_HSYNC */
GPIO94_GPIO, /* SPITZ_GPIO_CF_CD */
GPIO105_GPIO, /* SPITZ_GPIO_CF_IRQ */
GPIO106_GPIO, /* SPITZ_GPIO_CF2_IRQ */
/* GPIO matrix keypad */
GPIO88_GPIO, /* column 0 */
GPIO23_GPIO, /* column 1 */
GPIO24_GPIO, /* column 2 */
GPIO25_GPIO, /* column 3 */
GPIO26_GPIO, /* column 4 */
GPIO27_GPIO, /* column 5 */
GPIO52_GPIO, /* column 6 */
GPIO103_GPIO, /* column 7 */
GPIO107_GPIO, /* column 8 */
GPIO108_GPIO, /* column 9 */
GPIO114_GPIO, /* column 10 */
GPIO12_GPIO, /* row 0 */
GPIO17_GPIO, /* row 1 */
GPIO91_GPIO, /* row 2 */
GPIO34_GPIO, /* row 3 */
GPIO36_GPIO, /* row 4 */
GPIO38_GPIO, /* row 5 */
GPIO39_GPIO, /* row 6 */
/* I2C */
GPIO117_I2C_SCL,
GPIO118_I2C_SDA,
GPIO0_GPIO | WAKEUP_ON_EDGE_RISE, /* SPITZ_GPIO_KEY_INT */
GPIO1_GPIO | WAKEUP_ON_EDGE_FALL, /* SPITZ_GPIO_RESET */
};
/******************************************************************************
* Scoop GPIO expander
******************************************************************************/
#if defined(CONFIG_SHARP_SCOOP) || defined(CONFIG_SHARP_SCOOP_MODULE)
/* SCOOP Device #1 */
static struct resource spitz_scoop_1_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config spitz_scoop_1_setup = {
.io_dir = SPITZ_SCP_IO_DIR,
.io_out = SPITZ_SCP_IO_OUT,
.suspend_clr = SPITZ_SCP_SUS_CLR,
.suspend_set = SPITZ_SCP_SUS_SET,
.gpio_base = SPITZ_SCP_GPIO_BASE,
};
struct platform_device spitz_scoop_1_device = {
.name = "sharp-scoop",
.id = 0,
.dev = {
.platform_data = &spitz_scoop_1_setup,
},
.num_resources = ARRAY_SIZE(spitz_scoop_1_resources),
.resource = spitz_scoop_1_resources,
};
/* SCOOP Device #2 */
static struct resource spitz_scoop_2_resources[] = {
[0] = {
.start = 0x08800040,
.end = 0x08800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config spitz_scoop_2_setup = {
.io_dir = SPITZ_SCP2_IO_DIR,
.io_out = SPITZ_SCP2_IO_OUT,
.suspend_clr = SPITZ_SCP2_SUS_CLR,
.suspend_set = SPITZ_SCP2_SUS_SET,
.gpio_base = SPITZ_SCP2_GPIO_BASE,
};
struct platform_device spitz_scoop_2_device = {
.name = "sharp-scoop",
.id = 1,
.dev = {
.platform_data = &spitz_scoop_2_setup,
},
.num_resources = ARRAY_SIZE(spitz_scoop_2_resources),
.resource = spitz_scoop_2_resources,
};
static void __init spitz_scoop_init(void)
{
platform_device_register(&spitz_scoop_1_device);
/* Akita doesn't have the second SCOOP chip */
if (!machine_is_akita())
platform_device_register(&spitz_scoop_2_device);
}
/* Power control is shared with between one of the CF slots and SD */
static void __maybe_unused spitz_card_pwr_ctrl(uint8_t enable, uint8_t new_cpr)
{
unsigned short cpr;
unsigned long flags;
if (new_cpr & 0x7) {
gpio_set_value(SPITZ_GPIO_CF_POWER, 1);
mdelay(5);
}
local_irq_save(flags);
cpr = read_scoop_reg(&spitz_scoop_1_device.dev, SCOOP_CPR);
if (enable & new_cpr)
cpr |= new_cpr;
else
cpr &= ~enable;
write_scoop_reg(&spitz_scoop_1_device.dev, SCOOP_CPR, cpr);
local_irq_restore(flags);
if (!(cpr & 0x7)) {
mdelay(1);
gpio_set_value(SPITZ_GPIO_CF_POWER, 0);
}
}
#else
static inline void spitz_scoop_init(void) {}
static inline void spitz_card_pwr_ctrl(uint8_t enable, uint8_t new_cpr) {}
#endif
/******************************************************************************
* PCMCIA
******************************************************************************/
#if defined(CONFIG_PCMCIA_PXA2XX) || defined(CONFIG_PCMCIA_PXA2XX_MODULE)
static void spitz_pcmcia_pwr(struct device *scoop, uint16_t cpr, int nr)
{
/* Only need to override behaviour for slot 0 */
if (nr == 0)
spitz_card_pwr_ctrl(
cpr & (SCOOP_CPR_CF_3V | SCOOP_CPR_CF_XV), cpr);
else
write_scoop_reg(scoop, SCOOP_CPR, cpr);
}
static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
{
.dev = &spitz_scoop_1_device.dev,
.irq = SPITZ_IRQ_GPIO_CF_IRQ,
.cd_irq = SPITZ_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
}, {
.dev = &spitz_scoop_2_device.dev,
.irq = SPITZ_IRQ_GPIO_CF2_IRQ,
.cd_irq = -1,
},
};
static struct scoop_pcmcia_config spitz_pcmcia_config = {
.devs = &spitz_pcmcia_scoop[0],
.num_devs = 2,
.power_ctrl = spitz_pcmcia_pwr,
};
static void __init spitz_pcmcia_init(void)
{
/* Akita has only one PCMCIA slot used */
if (machine_is_akita())
spitz_pcmcia_config.num_devs = 1;
platform_scoop_config = &spitz_pcmcia_config;
}
#else
static inline void spitz_pcmcia_init(void) {}
#endif
/******************************************************************************
* GPIO keyboard
******************************************************************************/
#if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
#define SPITZ_KEY_CALENDAR KEY_F1
#define SPITZ_KEY_ADDRESS KEY_F2
#define SPITZ_KEY_FN KEY_F3
#define SPITZ_KEY_CANCEL KEY_F4
#define SPITZ_KEY_EXOK KEY_F5
#define SPITZ_KEY_EXCANCEL KEY_F6
#define SPITZ_KEY_EXJOGDOWN KEY_F7
#define SPITZ_KEY_EXJOGUP KEY_F8
#define SPITZ_KEY_JAP1 KEY_LEFTALT
#define SPITZ_KEY_JAP2 KEY_RIGHTCTRL
#define SPITZ_KEY_SYNC KEY_F9
#define SPITZ_KEY_MAIL KEY_F10
#define SPITZ_KEY_OK KEY_F11
#define SPITZ_KEY_MENU KEY_F12
static const uint32_t spitz_keymap[] = {
KEY(0, 0, KEY_LEFTCTRL),
KEY(0, 1, KEY_1),
KEY(0, 2, KEY_3),
KEY(0, 3, KEY_5),
KEY(0, 4, KEY_6),
KEY(0, 5, KEY_7),
KEY(0, 6, KEY_9),
KEY(0, 7, KEY_0),
KEY(0, 8, KEY_BACKSPACE),
KEY(0, 9, SPITZ_KEY_EXOK), /* EXOK */
KEY(0, 10, SPITZ_KEY_EXCANCEL), /* EXCANCEL */
KEY(1, 1, KEY_2),
KEY(1, 2, KEY_4),
KEY(1, 3, KEY_R),
KEY(1, 4, KEY_Y),
KEY(1, 5, KEY_8),
KEY(1, 6, KEY_I),
KEY(1, 7, KEY_O),
KEY(1, 8, KEY_P),
KEY(1, 9, SPITZ_KEY_EXJOGDOWN), /* EXJOGDOWN */
KEY(1, 10, SPITZ_KEY_EXJOGUP), /* EXJOGUP */
KEY(2, 0, KEY_TAB),
KEY(2, 1, KEY_Q),
KEY(2, 2, KEY_E),
KEY(2, 3, KEY_T),
KEY(2, 4, KEY_G),
KEY(2, 5, KEY_U),
KEY(2, 6, KEY_J),
KEY(2, 7, KEY_K),
KEY(3, 0, SPITZ_KEY_ADDRESS), /* ADDRESS */
KEY(3, 1, KEY_W),
KEY(3, 2, KEY_S),
KEY(3, 3, KEY_F),
KEY(3, 4, KEY_V),
KEY(3, 5, KEY_H),
KEY(3, 6, KEY_M),
KEY(3, 7, KEY_L),
KEY(3, 9, KEY_RIGHTSHIFT),
KEY(4, 0, SPITZ_KEY_CALENDAR), /* CALENDAR */
KEY(4, 1, KEY_A),
KEY(4, 2, KEY_D),
KEY(4, 3, KEY_C),
KEY(4, 4, KEY_B),
KEY(4, 5, KEY_N),
KEY(4, 6, KEY_DOT),
KEY(4, 8, KEY_ENTER),
KEY(4, 9, KEY_LEFTSHIFT),
KEY(5, 0, SPITZ_KEY_MAIL), /* MAIL */
KEY(5, 1, KEY_Z),
KEY(5, 2, KEY_X),
KEY(5, 3, KEY_MINUS),
KEY(5, 4, KEY_SPACE),
KEY(5, 5, KEY_COMMA),
KEY(5, 7, KEY_UP),
KEY(5, 10, SPITZ_KEY_FN), /* FN */
KEY(6, 0, KEY_SYSRQ),
KEY(6, 1, SPITZ_KEY_JAP1), /* JAP1 */
KEY(6, 2, SPITZ_KEY_JAP2), /* JAP2 */
KEY(6, 3, SPITZ_KEY_CANCEL), /* CANCEL */
KEY(6, 4, SPITZ_KEY_OK), /* OK */
KEY(6, 5, SPITZ_KEY_MENU), /* MENU */
KEY(6, 6, KEY_LEFT),
KEY(6, 7, KEY_DOWN),
KEY(6, 8, KEY_RIGHT),
};
static const struct matrix_keymap_data spitz_keymap_data = {
.keymap = spitz_keymap,
.keymap_size = ARRAY_SIZE(spitz_keymap),
};
static const uint32_t spitz_row_gpios[] =
{ 12, 17, 91, 34, 36, 38, 39 };
static const uint32_t spitz_col_gpios[] =
{ 88, 23, 24, 25, 26, 27, 52, 103, 107, 108, 114 };
static struct matrix_keypad_platform_data spitz_mkp_pdata = {
.keymap_data = &spitz_keymap_data,
.row_gpios = spitz_row_gpios,
.col_gpios = spitz_col_gpios,
.num_row_gpios = ARRAY_SIZE(spitz_row_gpios),
.num_col_gpios = ARRAY_SIZE(spitz_col_gpios),
.col_scan_delay_us = 10,
.debounce_ms = 10,
.wakeup = 1,
};
static struct platform_device spitz_mkp_device = {
.name = "matrix-keypad",
.id = -1,
.dev = {
.platform_data = &spitz_mkp_pdata,
},
};
static void __init spitz_mkp_init(void)
{
platform_device_register(&spitz_mkp_device);
}
#else
static inline void spitz_mkp_init(void) {}
#endif
/******************************************************************************
* GPIO keys
******************************************************************************/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button spitz_gpio_keys[] = {
{
.type = EV_PWR,
.code = KEY_SUSPEND,
.gpio = SPITZ_GPIO_ON_KEY,
.desc = "On Off",
.wakeup = 1,
},
/* Two buttons detecting the lid state */
{
.type = EV_SW,
.code = 0,
.gpio = SPITZ_GPIO_SWA,
.desc = "Display Down",
},
{
.type = EV_SW,
.code = 1,
.gpio = SPITZ_GPIO_SWB,
.desc = "Lid Closed",
},
};
static struct gpio_keys_platform_data spitz_gpio_keys_platform_data = {
.buttons = spitz_gpio_keys,
.nbuttons = ARRAY_SIZE(spitz_gpio_keys),
};
static struct platform_device spitz_gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &spitz_gpio_keys_platform_data,
},
};
static void __init spitz_keys_init(void)
{
platform_device_register(&spitz_gpio_keys_device);
}
#else
static inline void spitz_keys_init(void) {}
#endif
/******************************************************************************
* LEDs
******************************************************************************/
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
static struct gpio_led spitz_gpio_leds[] = {
{
.name = "spitz:amber:charge",
.default_trigger = "sharpsl-charge",
.gpio = SPITZ_GPIO_LED_ORANGE,
},
{
.name = "spitz:green:hddactivity",
.default_trigger = "disk-activity",
.gpio = SPITZ_GPIO_LED_GREEN,
},
};
static struct gpio_led_platform_data spitz_gpio_leds_info = {
.leds = spitz_gpio_leds,
.num_leds = ARRAY_SIZE(spitz_gpio_leds),
};
static struct platform_device spitz_led_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &spitz_gpio_leds_info,
},
};
static void __init spitz_leds_init(void)
{
platform_device_register(&spitz_led_device);
}
#else
static inline void spitz_leds_init(void) {}
#endif
/******************************************************************************
* SSP Devices
******************************************************************************/
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static void spitz_ads7846_wait_for_hsync(void)
{
while (gpio_get_value(SPITZ_GPIO_HSYNC))
cpu_relax();
while (!gpio_get_value(SPITZ_GPIO_HSYNC))
cpu_relax();
}
static struct ads7846_platform_data spitz_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.pressure_max = 1024,
.wait_for_sync = spitz_ads7846_wait_for_hsync,
};
static struct gpiod_lookup_table spitz_ads7846_gpio_table = {
.dev_id = "spi2.0",
.table = {
GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_TP_INT,
"pendown", GPIO_ACTIVE_LOW),
{ }
},
};
static void spitz_bl_kick_battery(void)
{
void (*kick_batt)(void);
kick_batt = symbol_get(sharpsl_battery_kick);
if (kick_batt) {
kick_batt();
symbol_put(sharpsl_battery_kick);
}
}
static struct gpiod_lookup_table spitz_lcdcon_gpio_table = {
.dev_id = "spi2.1",
.table = {
GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_BACKLIGHT_CONT,
"BL_CONT", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_BACKLIGHT_ON,
"BL_ON", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct gpiod_lookup_table akita_lcdcon_gpio_table = {
.dev_id = "spi2.1",
.table = {
GPIO_LOOKUP("gpio-pxa", AKITA_GPIO_BACKLIGHT_CONT,
"BL_CONT", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio-pxa", AKITA_GPIO_BACKLIGHT_ON,
"BL_ON", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct corgi_lcd_platform_data spitz_lcdcon_info = {
.init_mode = CORGI_LCD_MODE_VGA,
.max_intensity = 0x2f,
.default_intensity = 0x1f,
.limit_mask = 0x0b,
.kick_battery = spitz_bl_kick_battery,
};
static struct spi_board_info spitz_spi_devices[] = {
{
.modalias = "ads7846",
.max_speed_hz = 1200000,
.bus_num = 2,
.chip_select = 0,
.platform_data = &spitz_ads7846_info,
.irq = PXA_GPIO_TO_IRQ(SPITZ_GPIO_TP_INT),
}, {
.modalias = "corgi-lcd",
.max_speed_hz = 50000,
.bus_num = 2,
.chip_select = 1,
.platform_data = &spitz_lcdcon_info,
}, {
.modalias = "max1111",
.max_speed_hz = 450000,
.bus_num = 2,
.chip_select = 2,
},
};
static struct pxa2xx_spi_controller spitz_spi_info = {
.num_chipselect = 3,
};
static struct gpiod_lookup_table spitz_spi_gpio_table = {
.dev_id = "spi2",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_ADS7846_CS, "cs", 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_LCDCON_CS, "cs", 1, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-pxa", SPITZ_GPIO_MAX1111_CS, "cs", 2, GPIO_ACTIVE_LOW),
{ },
},
};
static void __init spitz_spi_init(void)
{
if (machine_is_akita())
gpiod_add_lookup_table(&akita_lcdcon_gpio_table);
else
gpiod_add_lookup_table(&spitz_lcdcon_gpio_table);
gpiod_add_lookup_table(&spitz_ads7846_gpio_table);
gpiod_add_lookup_table(&spitz_spi_gpio_table);
pxa2xx_set_spi_info(2, &spitz_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(spitz_spi_devices));
}
#else
static inline void spitz_spi_init(void) {}
#endif
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
/*
* NOTE: The card detect interrupt isn't debounced so we delay it by 250ms to
* give the card a chance to fully insert/eject.
*/
static int spitz_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if ((1 << vdd) & p_d->ocr_mask)
spitz_card_pwr_ctrl(SCOOP_CPR_SD_3V, SCOOP_CPR_SD_3V);
else
spitz_card_pwr_ctrl(SCOOP_CPR_SD_3V, 0x0);
return 0;
}
static struct pxamci_platform_data spitz_mci_platform_data = {
.detect_delay_ms = 250,
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.setpower = spitz_mci_setpower,
};
static struct gpiod_lookup_table spitz_mci_gpio_table = {
.dev_id = "pxa2xx-mci.0",
.table = {
GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_nSD_DETECT,
"cd", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio-pxa", SPITZ_GPIO_nSD_WP,
"wp", GPIO_ACTIVE_LOW),
{ },
},
};
static void __init spitz_mmc_init(void)
{
gpiod_add_lookup_table(&spitz_mci_gpio_table);
pxa_set_mci_info(&spitz_mci_platform_data);
}
#else
static inline void spitz_mmc_init(void) {}
#endif
/******************************************************************************
* USB Host
******************************************************************************/
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static int spitz_ohci_init(struct device *dev)
{
int err;
err = gpio_request(SPITZ_GPIO_USB_HOST, "USB_HOST");
if (err)
return err;
/* Only Port 2 is connected, setup USB Port 2 Output Control Register */
UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
return gpio_direction_output(SPITZ_GPIO_USB_HOST, 1);
}
static void spitz_ohci_exit(struct device *dev)
{
gpio_free(SPITZ_GPIO_USB_HOST);
}
static struct pxaohci_platform_data spitz_ohci_platform_data = {
.port_mode = PMM_NPS_MODE,
.init = spitz_ohci_init,
.exit = spitz_ohci_exit,
.flags = ENABLE_PORT_ALL | NO_OC_PROTECTION,
.power_budget = 150,
};
static void __init spitz_uhc_init(void)
{
pxa_set_ohci_info(&spitz_ohci_platform_data);
}
#else
static inline void spitz_uhc_init(void) {}
#endif
/******************************************************************************
* Framebuffer
******************************************************************************/
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static struct pxafb_mode_info spitz_pxafb_modes[] = {
{
.pixclock = 19231,
.xres = 480,
.yres = 640,
.bpp = 16,
.hsync_len = 40,
.left_margin = 46,
.right_margin = 125,
.vsync_len = 3,
.upper_margin = 1,
.lower_margin = 0,
.sync = 0,
}, {
.pixclock = 134617,
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 20,
.left_margin = 20,
.right_margin = 46,
.vsync_len = 2,
.upper_margin = 1,
.lower_margin = 0,
.sync = 0,
},
};
static struct pxafb_mach_info spitz_pxafb_info = {
.modes = spitz_pxafb_modes,
.num_modes = ARRAY_SIZE(spitz_pxafb_modes),
.fixed_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_ALTERNATE_MAPPING,
};
static void __init spitz_lcd_init(void)
{
pxa_set_fb_info(NULL, &spitz_pxafb_info);
}
#else
static inline void spitz_lcd_init(void) {}
#endif
/******************************************************************************
* NAND Flash
******************************************************************************/
#if defined(CONFIG_MTD_NAND_SHARPSL) || defined(CONFIG_MTD_NAND_SHARPSL_MODULE)
static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
static struct nand_bbt_descr spitz_nand_bbt = {
.options = 0,
.offs = 4,
.len = 2,
.pattern = scan_ff_pattern
};
static int akita_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
if (section > 12)
return -ERANGE;
switch (section % 3) {
case 0:
oobregion->offset = 5;
oobregion->length = 1;
break;
case 1:
oobregion->offset = 1;
oobregion->length = 3;
break;
case 2:
oobregion->offset = 6;
oobregion->length = 2;
break;
}
oobregion->offset += (section / 3) * 0x10;
return 0;
}
static int akita_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *oobregion)
{
if (section)
return -ERANGE;
oobregion->offset = 8;
oobregion->length = 9;
return 0;
}
static const struct mtd_ooblayout_ops akita_ooblayout_ops = {
.ecc = akita_ooblayout_ecc,
.free = akita_ooblayout_free,
};
static const char * const probes[] = {
"cmdlinepart",
"ofpart",
"sharpslpart",
NULL,
};
static struct sharpsl_nand_platform_data spitz_nand_pdata = {
.badblock_pattern = &spitz_nand_bbt,
.part_parsers = probes,
};
static struct resource spitz_nand_resources[] = {
{
.start = PXA_CS3_PHYS,
.end = PXA_CS3_PHYS + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device spitz_nand_device = {
.name = "sharpsl-nand",
.id = -1,
.resource = spitz_nand_resources,
.num_resources = ARRAY_SIZE(spitz_nand_resources),
.dev = {
.platform_data = &spitz_nand_pdata,
}
};
static void __init spitz_nand_init(void)
{
if (machine_is_akita() || machine_is_borzoi()) {
spitz_nand_bbt.len = 1;
spitz_nand_pdata.ecc_layout = &akita_ooblayout_ops;
}
platform_device_register(&spitz_nand_device);
}
#else
static inline void spitz_nand_init(void) {}
#endif
/******************************************************************************
* NOR Flash
******************************************************************************/
#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
static struct mtd_partition spitz_rom_parts[] = {
{
.name ="Boot PROM Filesystem",
.offset = 0x00140000,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data spitz_rom_data = {
.width = 2,
.nr_parts = ARRAY_SIZE(spitz_rom_parts),
.parts = spitz_rom_parts,
};
static struct resource spitz_rom_resources[] = {
{
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_8M - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device spitz_rom_device = {
.name = "physmap-flash",
.id = -1,
.resource = spitz_rom_resources,
.num_resources = ARRAY_SIZE(spitz_rom_resources),
.dev = {
.platform_data = &spitz_rom_data,
},
};
static void __init spitz_nor_init(void)
{
platform_device_register(&spitz_rom_device);
}
#else
static inline void spitz_nor_init(void) {}
#endif
/******************************************************************************
* I2C devices
******************************************************************************/
#if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
static struct pca953x_platform_data akita_pca953x_pdata = {
.gpio_base = AKITA_IOEXP_GPIO_BASE,
};
static struct i2c_board_info spitz_i2c_devs[] = {
{
.type = "wm8750",
.addr = 0x1b,
}, {
.type = "max7310",
.addr = 0x18,
.platform_data = &akita_pca953x_pdata,
},
};
static struct regulator_consumer_supply isl6271a_consumers[] = {
REGULATOR_SUPPLY("vcc_core", NULL),
};
static struct regulator_init_data isl6271a_info[] = {
{
.constraints = {
.name = "vcc_core range",
.min_uV = 850000,
.max_uV = 1600000,
.always_on = 1,
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
},
.consumer_supplies = isl6271a_consumers,
.num_consumer_supplies = ARRAY_SIZE(isl6271a_consumers),
}
};
static struct i2c_board_info spitz_pi2c_devs[] = {
{
.type = "isl6271a",
.addr = 0x0c,
.platform_data = &isl6271a_info,
},
};
static void __init spitz_i2c_init(void)
{
int size = ARRAY_SIZE(spitz_i2c_devs);
/* Only Akita has the max7310 chip */
if (!machine_is_akita())
size--;
pxa_set_i2c_info(NULL);
pxa27x_set_i2c_power_info(NULL);
i2c_register_board_info(0, spitz_i2c_devs, size);
i2c_register_board_info(1, ARRAY_AND_SIZE(spitz_pi2c_devs));
}
#else
static inline void spitz_i2c_init(void) {}
#endif
static struct gpiod_lookup_table spitz_audio_gpio_table = {
.dev_id = "spitz-audio",
.table = {
GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_L - SPITZ_SCP_GPIO_BASE,
"mute-l", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_R - SPITZ_SCP_GPIO_BASE,
"mute-r", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("sharp-scoop.1", SPITZ_GPIO_MIC_BIAS - SPITZ_SCP2_GPIO_BASE,
"mic", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct gpiod_lookup_table akita_audio_gpio_table = {
.dev_id = "spitz-audio",
.table = {
GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_L - SPITZ_SCP_GPIO_BASE,
"mute-l", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("sharp-scoop.0", SPITZ_GPIO_MUTE_R - SPITZ_SCP_GPIO_BASE,
"mute-r", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("i2c-max7310", AKITA_GPIO_MIC_BIAS - AKITA_IOEXP_GPIO_BASE,
"mic", GPIO_ACTIVE_HIGH),
{ },
},
};
/******************************************************************************
* Audio devices
******************************************************************************/
static inline void spitz_audio_init(void)
{
if (machine_is_akita())
gpiod_add_lookup_table(&akita_audio_gpio_table);
else
gpiod_add_lookup_table(&spitz_audio_gpio_table);
platform_device_register_simple("spitz-audio", -1, NULL, 0);
}
/******************************************************************************
* Machine init
******************************************************************************/
static void spitz_poweroff(void)
{
pxa_restart(REBOOT_GPIO, NULL);
}
static void spitz_restart(enum reboot_mode mode, const char *cmd)
{
uint32_t msc0 = __raw_readl(MSC0);
/* Bootloader magic for a reboot */
if ((msc0 & 0xffff0000) == 0x7ff00000)
__raw_writel((msc0 & 0xffff) | 0x7ee00000, MSC0);
spitz_poweroff();
}
static void __init spitz_init(void)
{
init_gpio_reset(SPITZ_GPIO_ON_RESET, 1, 0);
pm_power_off = spitz_poweroff;
PMCR = 0x00;
/* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
PCFR |= PCFR_OPDE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(spitz_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
spitz_spi_init();
spitz_scoop_init();
spitz_mkp_init();
spitz_keys_init();
spitz_leds_init();
spitz_mmc_init();
spitz_pcmcia_init();
spitz_uhc_init();
spitz_lcd_init();
spitz_nor_init();
spitz_nand_init();
spitz_i2c_init();
spitz_audio_init();
regulator_has_full_constraints();
}
static void __init spitz_fixup(struct tag *tags, char **cmdline)
{
sharpsl_save_param();
memblock_add(0xa0000000, SZ_64M);
}
#ifdef CONFIG_MACH_SPITZ
MACHINE_START(SPITZ, "SHARP Spitz")
.fixup = spitz_fixup,
.map_io = pxa27x_map_io,
.nr_irqs = PXA_NR_IRQS,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_machine = spitz_init,
.init_time = pxa_timer_init,
.restart = spitz_restart,
MACHINE_END
#endif
#ifdef CONFIG_MACH_BORZOI
MACHINE_START(BORZOI, "SHARP Borzoi")
.fixup = spitz_fixup,
.map_io = pxa27x_map_io,
.nr_irqs = PXA_NR_IRQS,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_machine = spitz_init,
.init_time = pxa_timer_init,
.restart = spitz_restart,
MACHINE_END
#endif
#ifdef CONFIG_MACH_AKITA
MACHINE_START(AKITA, "SHARP Akita")
.fixup = spitz_fixup,
.map_io = pxa27x_map_io,
.nr_irqs = PXA_NR_IRQS,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_machine = spitz_init,
.init_time = pxa_timer_init,
.restart = spitz_restart,
MACHINE_END
#endif
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