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raumfeld.c
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/*
* arch/arm/mach-pxa/raumfeld.c
*
* Support for the following Raumfeld devices:
*
* * Controller
* * Connector
* * Speaker S/M
*
* See http://www.raumfeld.com for details.
*
* Copyright (c) 2009 Daniel Mack <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/property.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/smsc911x.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/leds.h>
#include <linux/w1-gpio.h>
#include <linux/sched.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/i2c.h>
#include <linux/platform_data/i2c-pxa.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
#include <linux/lis3lv02d.h>
#include <linux/pda_power.h>
#include <linux/power_supply.h>
#include <linux/regulator/max8660.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/consumer.h>
#include <linux/delay.h>
#include <asm/system_info.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "pxa300.h"
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/mtd-nand-pxa3xx.h>
#include "generic.h"
#include "devices.h"
/* common GPIO definitions */
/* inputs */
#define GPIO_ON_OFF (14)
#define GPIO_VOLENC_A (19)
#define GPIO_VOLENC_B (20)
#define GPIO_CHARGE_DONE (23)
#define GPIO_CHARGE_IND (27)
#define GPIO_TOUCH_IRQ (32)
#define GPIO_ETH_IRQ (40)
#define GPIO_SPI_MISO (98)
#define GPIO_ACCEL_IRQ (104)
#define GPIO_RESCUE_BOOT (115)
#define GPIO_DOCK_DETECT (116)
#define GPIO_KEY1 (117)
#define GPIO_KEY2 (118)
#define GPIO_KEY3 (119)
#define GPIO_CHARGE_USB_OK (112)
#define GPIO_CHARGE_DC_OK (101)
#define GPIO_CHARGE_USB_SUSP (102)
/* outputs */
#define GPIO_SHUTDOWN_SUPPLY (16)
#define GPIO_SHUTDOWN_BATT (18)
#define GPIO_CHRG_PEN2 (31)
#define GPIO_TFT_VA_EN (33)
#define GPIO_SPDIF_CS (34)
#define GPIO_LED2 (35)
#define GPIO_LED1 (36)
#define GPIO_SPDIF_RESET (38)
#define GPIO_SPI_CLK (95)
#define GPIO_MCLK_DAC_CS (96)
#define GPIO_SPI_MOSI (97)
#define GPIO_W1_PULLUP_ENABLE (105)
#define GPIO_DISPLAY_ENABLE (106)
#define GPIO_MCLK_RESET (111)
#define GPIO_W2W_RESET (113)
#define GPIO_W2W_PDN (114)
#define GPIO_CODEC_RESET (120)
#define GPIO_AUDIO_VA_ENABLE (124)
#define GPIO_ACCEL_CS (125)
#define GPIO_ONE_WIRE (126)
/*
* GPIO configurations
*/
static mfp_cfg_t raumfeld_controller_pin_config[] __initdata = {
/* UART1 */
GPIO77_UART1_RXD,
GPIO78_UART1_TXD,
GPIO79_UART1_CTS,
GPIO81_UART1_DSR,
GPIO83_UART1_DTR,
GPIO84_UART1_RTS,
/* UART3 */
GPIO110_UART3_RXD,
/* USB Host */
GPIO0_2_USBH_PEN,
GPIO1_2_USBH_PWR,
/* I2C */
GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
/* SPI */
GPIO34_GPIO, /* SPDIF_CS */
GPIO96_GPIO, /* MCLK_CS */
GPIO125_GPIO, /* ACCEL_CS */
/* MMC */
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
GPIO7_MMC1_CLK,
GPIO8_MMC1_CMD,
/* One-wire */
GPIO126_GPIO | MFP_LPM_FLOAT,
GPIO105_GPIO | MFP_PULL_LOW | MFP_LPM_PULL_LOW,
/* CHRG_USB_OK */
GPIO101_GPIO | MFP_PULL_HIGH,
/* CHRG_USB_OK */
GPIO112_GPIO | MFP_PULL_HIGH,
/* CHRG_USB_SUSP */
GPIO102_GPIO,
/* DISPLAY_ENABLE */
GPIO106_GPIO,
/* DOCK_DETECT */
GPIO116_GPIO | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
/* LCD */
GPIO54_LCD_LDD_0,
GPIO55_LCD_LDD_1,
GPIO56_LCD_LDD_2,
GPIO57_LCD_LDD_3,
GPIO58_LCD_LDD_4,
GPIO59_LCD_LDD_5,
GPIO60_LCD_LDD_6,
GPIO61_LCD_LDD_7,
GPIO62_LCD_LDD_8,
GPIO63_LCD_LDD_9,
GPIO64_LCD_LDD_10,
GPIO65_LCD_LDD_11,
GPIO66_LCD_LDD_12,
GPIO67_LCD_LDD_13,
GPIO68_LCD_LDD_14,
GPIO69_LCD_LDD_15,
GPIO70_LCD_LDD_16,
GPIO71_LCD_LDD_17,
GPIO72_LCD_FCLK,
GPIO73_LCD_LCLK,
GPIO74_LCD_PCLK,
GPIO75_LCD_BIAS,
};
static mfp_cfg_t raumfeld_connector_pin_config[] __initdata = {
/* UART1 */
GPIO77_UART1_RXD,
GPIO78_UART1_TXD,
GPIO79_UART1_CTS,
GPIO81_UART1_DSR,
GPIO83_UART1_DTR,
GPIO84_UART1_RTS,
/* UART3 */
GPIO110_UART3_RXD,
/* USB Host */
GPIO0_2_USBH_PEN,
GPIO1_2_USBH_PWR,
/* I2C */
GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
/* SPI */
GPIO34_GPIO, /* SPDIF_CS */
GPIO96_GPIO, /* MCLK_CS */
GPIO125_GPIO, /* ACCEL_CS */
/* MMC */
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
GPIO7_MMC1_CLK,
GPIO8_MMC1_CMD,
/* Ethernet */
GPIO1_nCS2, /* CS */
GPIO40_GPIO | MFP_PULL_HIGH, /* IRQ */
/* SSP for I2S */
GPIO85_SSP1_SCLK,
GPIO89_SSP1_EXTCLK,
GPIO86_SSP1_FRM,
GPIO87_SSP1_TXD,
GPIO88_SSP1_RXD,
GPIO90_SSP1_SYSCLK,
/* SSP2 for S/PDIF */
GPIO25_SSP2_SCLK,
GPIO26_SSP2_FRM,
GPIO27_SSP2_TXD,
GPIO29_SSP2_EXTCLK,
/* LEDs */
GPIO35_GPIO | MFP_LPM_PULL_LOW,
GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
};
static mfp_cfg_t raumfeld_speaker_pin_config[] __initdata = {
/* UART1 */
GPIO77_UART1_RXD,
GPIO78_UART1_TXD,
GPIO79_UART1_CTS,
GPIO81_UART1_DSR,
GPIO83_UART1_DTR,
GPIO84_UART1_RTS,
/* UART3 */
GPIO110_UART3_RXD,
/* USB Host */
GPIO0_2_USBH_PEN,
GPIO1_2_USBH_PWR,
/* I2C */
GPIO21_I2C_SCL | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
GPIO22_I2C_SDA | MFP_LPM_FLOAT | MFP_PULL_FLOAT,
/* SPI */
GPIO34_GPIO, /* SPDIF_CS */
GPIO96_GPIO, /* MCLK_CS */
GPIO125_GPIO, /* ACCEL_CS */
/* MMC */
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
GPIO7_MMC1_CLK,
GPIO8_MMC1_CMD,
/* Ethernet */
GPIO1_nCS2, /* CS */
GPIO40_GPIO | MFP_PULL_HIGH, /* IRQ */
/* SSP for I2S */
GPIO85_SSP1_SCLK,
GPIO89_SSP1_EXTCLK,
GPIO86_SSP1_FRM,
GPIO87_SSP1_TXD,
GPIO88_SSP1_RXD,
GPIO90_SSP1_SYSCLK,
/* LEDs */
GPIO35_GPIO | MFP_LPM_PULL_LOW,
GPIO36_GPIO | MFP_LPM_DRIVE_HIGH,
};
/*
* SMSC LAN9220 Ethernet
*/
static struct resource smc91x_resources[] = {
{
.start = PXA3xx_CS2_PHYS,
.end = PXA3xx_CS2_PHYS + 0xfffff,
.flags = IORESOURCE_MEM,
},
{
.start = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
.end = PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
}
};
static struct smsc911x_platform_config raumfeld_smsc911x_config = {
.phy_interface = PHY_INTERFACE_MODE_MII,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
.flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
};
static struct platform_device smc91x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
.dev = {
.platform_data = &raumfeld_smsc911x_config,
}
};
/**
* NAND
*/
static struct mtd_partition raumfeld_nand_partitions[] = {
{
.name = "Bootloader",
.offset = 0,
.size = 0xa0000,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
{
.name = "BootloaderEnvironment",
.offset = 0xa0000,
.size = 0x20000,
},
{
.name = "BootloaderSplashScreen",
.offset = 0xc0000,
.size = 0x60000,
},
{
.name = "UBI",
.offset = 0x120000,
.size = MTDPART_SIZ_FULL,
},
};
static struct pxa3xx_nand_platform_data raumfeld_nand_info = {
.keep_config = 1,
.parts = raumfeld_nand_partitions,
.nr_parts = ARRAY_SIZE(raumfeld_nand_partitions),
};
/**
* USB (OHCI) support
*/
static struct pxaohci_platform_data raumfeld_ohci_info = {
.port_mode = PMM_GLOBAL_MODE,
.flags = ENABLE_PORT1,
};
/**
* Rotary encoder input device
*/
static struct gpiod_lookup_table raumfeld_rotary_gpios_table = {
.dev_id = "rotary-encoder.0",
.table = {
GPIO_LOOKUP_IDX("gpio-0",
GPIO_VOLENC_A, NULL, 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("gpio-0",
GPIO_VOLENC_B, NULL, 1, GPIO_ACTIVE_HIGH),
{ },
},
};
static const struct property_entry raumfeld_rotary_properties[] __initconst = {
PROPERTY_ENTRY_U32("rotary-encoder,steps-per-period", 24),
PROPERTY_ENTRY_U32("linux,axis", REL_X),
PROPERTY_ENTRY_U32("rotary-encoder,relative_axis", 1),
{ },
};
static struct platform_device rotary_encoder_device = {
.name = "rotary-encoder",
.id = 0,
};
/**
* GPIO buttons
*/
static struct gpio_keys_button gpio_keys_button[] = {
{
.code = KEY_F1,
.type = EV_KEY,
.gpio = GPIO_KEY1,
.active_low = 1,
.wakeup = 0,
.debounce_interval = 5, /* ms */
.desc = "Button 1",
},
{
.code = KEY_F2,
.type = EV_KEY,
.gpio = GPIO_KEY2,
.active_low = 1,
.wakeup = 0,
.debounce_interval = 5, /* ms */
.desc = "Button 2",
},
{
.code = KEY_F3,
.type = EV_KEY,
.gpio = GPIO_KEY3,
.active_low = 1,
.wakeup = 0,
.debounce_interval = 5, /* ms */
.desc = "Button 3",
},
{
.code = KEY_F4,
.type = EV_KEY,
.gpio = GPIO_RESCUE_BOOT,
.active_low = 0,
.wakeup = 0,
.debounce_interval = 5, /* ms */
.desc = "rescue boot button",
},
{
.code = KEY_F5,
.type = EV_KEY,
.gpio = GPIO_DOCK_DETECT,
.active_low = 1,
.wakeup = 0,
.debounce_interval = 5, /* ms */
.desc = "dock detect",
},
{
.code = KEY_F6,
.type = EV_KEY,
.gpio = GPIO_ON_OFF,
.active_low = 0,
.wakeup = 0,
.debounce_interval = 5, /* ms */
.desc = "on_off button",
},
};
static struct gpio_keys_platform_data gpio_keys_platform_data = {
.buttons = gpio_keys_button,
.nbuttons = ARRAY_SIZE(gpio_keys_button),
.rep = 0,
};
static struct platform_device raumfeld_gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &gpio_keys_platform_data,
}
};
/**
* GPIO LEDs
*/
static struct gpio_led raumfeld_leds[] = {
{
.name = "raumfeld:1",
.gpio = GPIO_LED1,
.active_low = 1,
.default_state = LEDS_GPIO_DEFSTATE_ON,
},
{
.name = "raumfeld:2",
.gpio = GPIO_LED2,
.active_low = 0,
.default_state = LEDS_GPIO_DEFSTATE_OFF,
}
};
static struct gpio_led_platform_data raumfeld_led_platform_data = {
.leds = raumfeld_leds,
.num_leds = ARRAY_SIZE(raumfeld_leds),
};
static struct platform_device raumfeld_led_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &raumfeld_led_platform_data,
},
};
/**
* One-wire (W1 bus) support
*/
static void w1_enable_external_pullup(int enable)
{
gpio_set_value(GPIO_W1_PULLUP_ENABLE, enable);
msleep(100);
}
static struct gpiod_lookup_table raumfeld_w1_gpiod_table = {
.dev_id = "w1-gpio",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", GPIO_ONE_WIRE, NULL, 0,
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
},
};
static struct w1_gpio_platform_data w1_gpio_platform_data = {
.enable_external_pullup = w1_enable_external_pullup,
};
static struct platform_device raumfeld_w1_gpio_device = {
.name = "w1-gpio",
.dev = {
.platform_data = &w1_gpio_platform_data
}
};
static void __init raumfeld_w1_init(void)
{
int ret = gpio_request(GPIO_W1_PULLUP_ENABLE,
"W1 external pullup enable");
if (ret < 0)
pr_warn("Unable to request GPIO_W1_PULLUP_ENABLE\n");
else
gpio_direction_output(GPIO_W1_PULLUP_ENABLE, 0);
gpiod_add_lookup_table(&raumfeld_w1_gpiod_table);
platform_device_register(&raumfeld_w1_gpio_device);
}
/**
* Framebuffer device
*/
static struct pwm_lookup raumfeld_pwm_lookup[] = {
PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 10000,
PWM_POLARITY_NORMAL),
};
/* PWM controlled backlight */
static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
.max_brightness = 100,
.dft_brightness = 100,
.enable_gpio = -1,
};
static struct platform_device raumfeld_pwm_backlight_device = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa27x_device_pwm0.dev,
.platform_data = &raumfeld_pwm_backlight_data,
}
};
/* LT3593 controlled backlight */
static struct gpio_led raumfeld_lt3593_led = {
.name = "backlight",
.gpio = mfp_to_gpio(MFP_PIN_GPIO17),
.default_state = LEDS_GPIO_DEFSTATE_ON,
};
static struct gpio_led_platform_data raumfeld_lt3593_platform_data = {
.leds = &raumfeld_lt3593_led,
.num_leds = 1,
};
static struct platform_device raumfeld_lt3593_device = {
.name = "leds-lt3593",
.id = -1,
.dev = {
.platform_data = &raumfeld_lt3593_platform_data,
},
};
static struct pxafb_mode_info sharp_lq043t3dx02_mode = {
.pixclock = 111000,
.xres = 480,
.yres = 272,
.bpp = 16,
.hsync_len = 41,
.left_margin = 2,
.right_margin = 1,
.vsync_len = 10,
.upper_margin = 3,
.lower_margin = 1,
.sync = 0,
};
static struct pxafb_mach_info raumfeld_sharp_lcd_info = {
.modes = &sharp_lq043t3dx02_mode,
.num_modes = 1,
.video_mem_size = 0x400000,
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
#ifdef CONFIG_PXA3XX_GCU
.acceleration_enabled = 1,
#endif
};
static void __init raumfeld_lcd_init(void)
{
int ret;
ret = gpio_request(GPIO_TFT_VA_EN, "display VA enable");
if (ret < 0)
pr_warn("Unable to request GPIO_TFT_VA_EN\n");
else
gpio_direction_output(GPIO_TFT_VA_EN, 1);
msleep(100);
ret = gpio_request(GPIO_DISPLAY_ENABLE, "display enable");
if (ret < 0)
pr_warn("Unable to request GPIO_DISPLAY_ENABLE\n");
else
gpio_direction_output(GPIO_DISPLAY_ENABLE, 1);
/* Hardware revision 2 has the backlight regulator controlled
* by an LT3593, earlier and later devices use PWM for that. */
if ((system_rev & 0xff) == 2) {
platform_device_register(&raumfeld_lt3593_device);
} else {
mfp_cfg_t raumfeld_pwm_pin_config = GPIO17_PWM0_OUT;
pxa3xx_mfp_config(&raumfeld_pwm_pin_config, 1);
pwm_add_table(raumfeld_pwm_lookup,
ARRAY_SIZE(raumfeld_pwm_lookup));
platform_device_register(&raumfeld_pwm_backlight_device);
}
pxa_set_fb_info(NULL, &raumfeld_sharp_lcd_info);
platform_device_register(&pxa3xx_device_gcu);
}
/**
* SPI devices
*/
static struct spi_gpio_platform_data raumfeld_spi_platform_data = {
.num_chipselect = 3,
};
static struct platform_device raumfeld_spi_device = {
.name = "spi_gpio",
.id = 0,
.dev = {
.platform_data = &raumfeld_spi_platform_data,
}
};
static struct gpiod_lookup_table raumfeld_spi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("gpio-0", GPIO_SPI_CLK,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-0", GPIO_SPI_MOSI,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("gpio-0", GPIO_SPI_MISO,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-0", GPIO_SPDIF_CS,
"cs", 0, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-0", GPIO_ACCEL_CS,
"cs", 1, GPIO_ACTIVE_HIGH),
GPIO_LOOKUP_IDX("gpio-0", GPIO_MCLK_DAC_CS,
"cs", 2, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct lis3lv02d_platform_data lis3_pdata = {
.click_flags = LIS3_CLICK_SINGLE_X |
LIS3_CLICK_SINGLE_Y |
LIS3_CLICK_SINGLE_Z,
.irq_cfg = LIS3_IRQ1_CLICK | LIS3_IRQ2_CLICK,
.wakeup_flags = LIS3_WAKEUP_X_LO | LIS3_WAKEUP_X_HI |
LIS3_WAKEUP_Y_LO | LIS3_WAKEUP_Y_HI |
LIS3_WAKEUP_Z_LO | LIS3_WAKEUP_Z_HI,
.wakeup_thresh = 10,
.click_thresh_x = 10,
.click_thresh_y = 10,
.click_thresh_z = 10,
};
#define SPI_AK4104 \
{ \
.modalias = "ak4104-codec", \
.max_speed_hz = 10000, \
.bus_num = 0, \
.chip_select = 0, \
}
#define SPI_LIS3 \
{ \
.modalias = "lis3lv02d_spi", \
.max_speed_hz = 1000000, \
.bus_num = 0, \
.chip_select = 1, \
.platform_data = &lis3_pdata, \
.irq = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ), \
}
#define SPI_DAC7512 \
{ \
.modalias = "dac7512", \
.max_speed_hz = 1000000, \
.bus_num = 0, \
.chip_select = 2, \
}
static struct spi_board_info connector_spi_devices[] __initdata = {
SPI_AK4104,
SPI_DAC7512,
};
static struct spi_board_info speaker_spi_devices[] __initdata = {
SPI_DAC7512,
};
static struct spi_board_info controller_spi_devices[] __initdata = {
SPI_LIS3,
};
/**
* MMC for Marvell Libertas 8688 via SDIO
*/
static int raumfeld_mci_init(struct device *dev, irq_handler_t isr, void *data)
{
gpio_set_value(GPIO_W2W_RESET, 1);
gpio_set_value(GPIO_W2W_PDN, 1);
return 0;
}
static void raumfeld_mci_exit(struct device *dev, void *data)
{
gpio_set_value(GPIO_W2W_RESET, 0);
gpio_set_value(GPIO_W2W_PDN, 0);
}
static struct pxamci_platform_data raumfeld_mci_platform_data = {
.init = raumfeld_mci_init,
.exit = raumfeld_mci_exit,
.detect_delay_ms = 200,
.gpio_card_detect = -1,
.gpio_card_ro = -1,
.gpio_power = -1,
};
/*
* External power / charge logic
*/
static int power_supply_init(struct device *dev)
{
return 0;
}
static void power_supply_exit(struct device *dev)
{
}
static int raumfeld_is_ac_online(void)
{
return !gpio_get_value(GPIO_CHARGE_DC_OK);
}
static int raumfeld_is_usb_online(void)
{
return 0;
}
static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
static void raumfeld_power_signal_charged(void)
{
struct power_supply *psy =
power_supply_get_by_name(raumfeld_power_supplicants[0]);
if (psy) {
power_supply_set_battery_charged(psy);
power_supply_put(psy);
}
}
static int raumfeld_power_resume(void)
{
/* check if GPIO_CHARGE_DONE went low while we were sleeping */
if (!gpio_get_value(GPIO_CHARGE_DONE))
raumfeld_power_signal_charged();
return 0;
}
static struct pda_power_pdata power_supply_info = {
.init = power_supply_init,
.is_ac_online = raumfeld_is_ac_online,
.is_usb_online = raumfeld_is_usb_online,
.exit = power_supply_exit,
.supplied_to = raumfeld_power_supplicants,
.num_supplicants = ARRAY_SIZE(raumfeld_power_supplicants),
.resume = raumfeld_power_resume,
};
static struct resource power_supply_resources[] = {
{
.name = "ac",
.flags = IORESOURCE_IRQ |
IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
.start = GPIO_CHARGE_DC_OK,
.end = GPIO_CHARGE_DC_OK,
},
};
static irqreturn_t charge_done_irq(int irq, void *dev_id)
{
raumfeld_power_signal_charged();
return IRQ_HANDLED;
}
static struct platform_device raumfeld_power_supply = {
.name = "pda-power",
.id = -1,
.dev = {
.platform_data = &power_supply_info,
},
.resource = power_supply_resources,
.num_resources = ARRAY_SIZE(power_supply_resources),
};
static void __init raumfeld_power_init(void)
{
int ret;
/* Set PEN2 high to enable maximum charge current */
ret = gpio_request(GPIO_CHRG_PEN2, "CHRG_PEN2");
if (ret < 0)
pr_warn("Unable to request GPIO_CHRG_PEN2\n");
else
gpio_direction_output(GPIO_CHRG_PEN2, 1);
ret = gpio_request(GPIO_CHARGE_DC_OK, "CABLE_DC_OK");
if (ret < 0)
pr_warn("Unable to request GPIO_CHARGE_DC_OK\n");
ret = gpio_request(GPIO_CHARGE_USB_SUSP, "CHARGE_USB_SUSP");
if (ret < 0)
pr_warn("Unable to request GPIO_CHARGE_USB_SUSP\n");
else
gpio_direction_output(GPIO_CHARGE_USB_SUSP, 0);
power_supply_resources[0].start = gpio_to_irq(GPIO_CHARGE_DC_OK);
power_supply_resources[0].end = gpio_to_irq(GPIO_CHARGE_DC_OK);
ret = request_irq(gpio_to_irq(GPIO_CHARGE_DONE),
&charge_done_irq, IORESOURCE_IRQ_LOWEDGE,
"charge_done", NULL);
if (ret < 0)
printk(KERN_ERR "%s: unable to register irq %d\n", __func__,
GPIO_CHARGE_DONE);
else
platform_device_register(&raumfeld_power_supply);
}
/* Fixed regulator for AUDIO_VA, 0-0048 maps to the cs4270 codec device */
static struct regulator_consumer_supply audio_va_consumer_supply =
REGULATOR_SUPPLY("va", "0-0048");
static struct regulator_init_data audio_va_initdata = {
.consumer_supplies = &audio_va_consumer_supply,
.num_consumer_supplies = 1,
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
};
static struct fixed_voltage_config audio_va_config = {
.supply_name = "audio_va",
.microvolts = 5000000,
.gpio = GPIO_AUDIO_VA_ENABLE,
.enable_high = 1,
.enabled_at_boot = 0,
.init_data = &audio_va_initdata,
};
static struct platform_device audio_va_device = {
.name = "reg-fixed-voltage",
.id = 0,
.dev = {
.platform_data = &audio_va_config,
},
};
/* Dummy supplies for Codec's VD/VLC */
static struct regulator_consumer_supply audio_dummy_supplies[] = {
REGULATOR_SUPPLY("vd", "0-0048"),
REGULATOR_SUPPLY("vlc", "0-0048"),
};
static struct regulator_init_data audio_dummy_initdata = {
.consumer_supplies = audio_dummy_supplies,
.num_consumer_supplies = ARRAY_SIZE(audio_dummy_supplies),
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
};
static struct fixed_voltage_config audio_dummy_config = {
.supply_name = "audio_vd",
.microvolts = 3300000,
.gpio = -1,
.init_data = &audio_dummy_initdata,
};
static struct platform_device audio_supply_dummy_device = {
.name = "reg-fixed-voltage",
.id = 1,
.dev = {
.platform_data = &audio_dummy_config,
},
};
static struct platform_device *audio_regulator_devices[] = {
&audio_va_device,
&audio_supply_dummy_device,
};
/**
* Regulator support via MAX8660
*/
static struct regulator_consumer_supply vcc_mmc_supply =
REGULATOR_SUPPLY("vmmc", "pxa2xx-mci.0");
static struct regulator_init_data vcc_mmc_init_data = {
.constraints = {
.min_uV = 3300000,
.max_uV = 3300000,
.valid_modes_mask = REGULATOR_MODE_NORMAL,
.valid_ops_mask = REGULATOR_CHANGE_STATUS |
REGULATOR_CHANGE_VOLTAGE |
REGULATOR_CHANGE_MODE,
},
.consumer_supplies = &vcc_mmc_supply,
.num_consumer_supplies = 1,
};
static struct max8660_subdev_data max8660_v6_subdev_data = {
.id = MAX8660_V6,
.name = "vmmc",
.platform_data = &vcc_mmc_init_data,
};
static struct max8660_platform_data max8660_pdata = {
.subdevs = &max8660_v6_subdev_data,
.num_subdevs = 1,
};
/**
* I2C devices
*/
static struct i2c_board_info raumfeld_pwri2c_board_info = {
.type = "max8660",
.addr = 0x34,
.platform_data = &max8660_pdata,
};
static struct i2c_board_info raumfeld_connector_i2c_board_info __initdata = {
.type = "cs4270",
.addr = 0x48,
};
static struct gpiod_lookup_table raumfeld_controller_gpios_table = {
.dev_id = "0-000a",
.table = {
GPIO_LOOKUP("gpio-pxa",
GPIO_TOUCH_IRQ, "attn", GPIO_ACTIVE_HIGH),
{ },
},
};
static const struct resource raumfeld_controller_resources[] __initconst = {
{
.start = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
.end = PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
},
};