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[ARM] 4948/1: magician: use htc-egpio to drive the GPIO/IRQ expander CPLD
needed for power management (audio, BT, charging, GSM, LCD, SD), GSM, flash and SD operation and audio routing. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
parent
a1635b8fe5
commit
70e357f842
4 changed files with 115 additions and 2 deletions
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@ -712,6 +712,7 @@ CONFIG_SSB_POSSIBLE=y
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# Multifunction device drivers
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#
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# CONFIG_MFD_SM501 is not set
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CONFIG_HTC_EGPIO=y
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#
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# Multimedia devices
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@ -18,6 +18,7 @@
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#include <linux/platform_device.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/mfd/htc-egpio.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/physmap.h>
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@ -84,6 +85,62 @@ static struct platform_device gpio_keys = {
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.id = -1,
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};
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/*
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* EGPIO (Xilinx CPLD)
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*
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* 7 32-bit aligned 8-bit registers: 3x output, 1x irq, 3x input
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*/
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static struct resource egpio_resources[] = {
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[0] = {
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.start = PXA_CS3_PHYS,
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.end = PXA_CS3_PHYS + 0x20,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = gpio_to_irq(GPIO13_MAGICIAN_CPLD_IRQ),
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.end = gpio_to_irq(GPIO13_MAGICIAN_CPLD_IRQ),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct htc_egpio_chip egpio_chips[] = {
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[0] = {
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.reg_start = 0,
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.gpio_base = MAGICIAN_EGPIO(0, 0),
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.num_gpios = 24,
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.direction = HTC_EGPIO_OUTPUT,
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.initial_values = 0x40, /* EGPIO_MAGICIAN_GSM_RESET */
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},
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[1] = {
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.reg_start = 4,
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.gpio_base = MAGICIAN_EGPIO(4, 0),
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.num_gpios = 24,
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.direction = HTC_EGPIO_INPUT,
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},
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};
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static struct htc_egpio_platform_data egpio_info = {
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.reg_width = 8,
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.bus_width = 32,
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.irq_base = IRQ_BOARD_START,
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.num_irqs = 4,
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.ack_register = 3,
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.chip = egpio_chips,
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.num_chips = ARRAY_SIZE(egpio_chips),
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};
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static struct platform_device egpio = {
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.name = "htc-egpio",
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.id = -1,
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.resource = egpio_resources,
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.num_resources = ARRAY_SIZE(egpio_resources),
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.dev = {
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.platform_data = &egpio_info,
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},
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};
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/*
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* LCD - Toppoly TD028STEB1
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*/
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@ -182,8 +239,8 @@ static struct physmap_flash_data strataflash_data = {
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static struct platform_device strataflash = {
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.name = "physmap-flash",
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.id = -1,
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.num_resources = 1,
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.resource = &strataflash_resource,
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.num_resources = 1,
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.dev = {
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.platform_data = &strataflash_data,
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},
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@ -195,6 +252,7 @@ static struct platform_device strataflash = {
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static struct platform_device *devices[] __initdata = {
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&gpio_keys,
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&egpio,
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&backlight,
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&strataflash,
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};
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@ -181,7 +181,8 @@
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#elif defined(CONFIG_ARCH_LUBBOCK) || \
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defined(CONFIG_MACH_LOGICPD_PXA270) || \
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defined(CONFIG_MACH_MAINSTONE) || \
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defined(CONFIG_MACH_PCM027)
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defined(CONFIG_MACH_PCM027) || \
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defined(CONFIG_MACH_MAGICIAN)
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#define NR_IRQS (IRQ_BOARD_END)
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#else
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#define NR_IRQS (IRQ_BOARD_START)
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@ -12,6 +12,7 @@
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#ifndef _MAGICIAN_H_
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#define _MAGICIAN_H_
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#include <asm/arch/irqs.h>
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#include <asm/arch/pxa2xx-gpio.h>
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/*
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@ -108,4 +109,56 @@
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#define GPIO119_MAGICIAN_UNKNOWN_MD (119 | GPIO_OUT)
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#define GPIO120_MAGICIAN_UNKNOWN_MD (120 | GPIO_OUT)
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/*
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* CPLD IRQs
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*/
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#define IRQ_MAGICIAN_SD (IRQ_BOARD_START + 0)
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#define IRQ_MAGICIAN_EP (IRQ_BOARD_START + 1)
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#define IRQ_MAGICIAN_BT (IRQ_BOARD_START + 2)
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#define IRQ_MAGICIAN_AC (IRQ_BOARD_START + 3)
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/*
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* CPLD EGPIOs
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*/
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#define MAGICIAN_EGPIO_BASE 0x80 /* GPIO_BOARD_START */
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#define MAGICIAN_EGPIO(reg,bit) \
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(MAGICIAN_EGPIO_BASE + 8*reg + bit)
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/* output */
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#define EGPIO_MAGICIAN_TOPPOLY_POWER MAGICIAN_EGPIO(0, 2)
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#define EGPIO_MAGICIAN_LED_POWER MAGICIAN_EGPIO(0, 5)
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#define EGPIO_MAGICIAN_GSM_RESET MAGICIAN_EGPIO(0, 6)
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#define EGPIO_MAGICIAN_LCD_POWER MAGICIAN_EGPIO(0, 7)
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#define EGPIO_MAGICIAN_SPK_POWER MAGICIAN_EGPIO(1, 0)
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#define EGPIO_MAGICIAN_EP_POWER MAGICIAN_EGPIO(1, 1)
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#define EGPIO_MAGICIAN_IN_SEL0 MAGICIAN_EGPIO(1, 2)
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#define EGPIO_MAGICIAN_IN_SEL1 MAGICIAN_EGPIO(1, 3)
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#define EGPIO_MAGICIAN_MIC_POWER MAGICIAN_EGPIO(1, 4)
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#define EGPIO_MAGICIAN_CODEC_RESET MAGICIAN_EGPIO(1, 5)
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#define EGPIO_MAGICIAN_CODEC_POWER MAGICIAN_EGPIO(1, 6)
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#define EGPIO_MAGICIAN_BL_POWER MAGICIAN_EGPIO(1, 7)
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#define EGPIO_MAGICIAN_SD_POWER MAGICIAN_EGPIO(2, 0)
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#define EGPIO_MAGICIAN_CARKIT_MIC MAGICIAN_EGPIO(2, 1)
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#define EGPIO_MAGICIAN_UNKNOWN_WAVEDEV_DLL MAGICIAN_EGPIO(2, 2)
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#define EGPIO_MAGICIAN_FLASH_VPP MAGICIAN_EGPIO(2, 3)
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#define EGPIO_MAGICIAN_BL_POWER2 MAGICIAN_EGPIO(2, 4)
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#define EGPIO_MAGICIAN_CHARGE_EN MAGICIAN_EGPIO(2, 5)
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#define EGPIO_MAGICIAN_GSM_POWER MAGICIAN_EGPIO(2, 7)
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/* input */
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#define EGPIO_MAGICIAN_CABLE_STATE_AC MAGICIAN_EGPIO(4, 0)
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#define EGPIO_MAGICIAN_CABLE_STATE_USB MAGICIAN_EGPIO(4, 1)
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#define EGPIO_MAGICIAN_BOARD_ID0 MAGICIAN_EGPIO(5, 0)
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#define EGPIO_MAGICIAN_BOARD_ID1 MAGICIAN_EGPIO(5, 1)
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#define EGPIO_MAGICIAN_BOARD_ID2 MAGICIAN_EGPIO(5, 2)
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#define EGPIO_MAGICIAN_LCD_SELECT MAGICIAN_EGPIO(5, 3)
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#define EGPIO_MAGICIAN_nSD_READONLY MAGICIAN_EGPIO(5, 4)
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#define EGPIO_MAGICIAN_EP_INSERT MAGICIAN_EGPIO(6, 1)
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#endif /* _MAGICIAN_H_ */
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