Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-23 12:42:02 +00:00
Code Issues Packages Projects Releases Wiki Activity
6ae9157906
linux/arch/arm/mach-pxa/palmz72.c
Linus Walleij f54005b508 mmc: pxa: Use GPIO descriptor for power 
After converting the PXA driver to use GPIO descriptors for
card detect and write protect it is relatively simple to
convert it to also use a descriptor for getting the optional
power control GPIO.

The polarity inversion flag can also go away from the platform
data since this is indicated in the GPIO machine descriptor
table.

Cc: Daniel Mack <daniel@zonque.org>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-12-17 08:26:24 +01:00

437 lines
11 KiB
C
Raw Blame History

/*
* Hardware definitions for Palm Zire72
*
* Authors:
* Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
* Sergey Lapin <slapin@ossfans.org>
* Alex Osborne <bobofdoom@gmail.com>
* Jan Herman <2hp@seznam.cz>
*
* Rewrite for mainline:
* Marek Vasut <marek.vasut@gmail.com>
*
* 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.
*
* (find more info at www.hackndev.com)
*
*/
#include <linux/platform_device.h>
#include <linux/syscore_ops.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/pda_power.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio.h>
#include <linux/wm97xx.h>
#include <linux/power_supply.h>
#include <linux/usb/gpio_vbus.h>
#include <linux/platform_data/i2c-gpio.h>
#include <linux/gpio/machine.h>
#include <asm/mach-types.h>
#include <asm/suspend.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "pxa27x.h"
#include <mach/audio.h>
#include "palmz72.h"
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/irda-pxaficp.h>
#include <linux/platform_data/keypad-pxa27x.h>
#include "udc.h"
#include <linux/platform_data/asoc-palm27x.h>
#include "palm27x.h"
#include "pm.h"
#include <linux/platform_data/media/camera-pxa.h>
#include <media/soc_camera.h>
#include "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long palmz72_pin_config[] __initdata = {
/* MMC */
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
GPIO14_GPIO, /* SD detect */
GPIO115_GPIO, /* SD RO */
GPIO98_GPIO, /* SD power */
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO89_AC97_SYSCLK,
GPIO113_AC97_nRESET,
/* IrDA */
GPIO49_GPIO, /* ir disable */
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
/* PWM */
GPIO16_PWM0_OUT,
/* USB */
GPIO15_GPIO, /* usb detect */
GPIO95_GPIO, /* usb pullup */
/* Matrix keypad */
GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
GPIO103_KP_MKOUT_0,
GPIO104_KP_MKOUT_1,
GPIO105_KP_MKOUT_2,
/* LCD */
GPIOxx_LCD_TFT_16BPP,
GPIO20_GPIO, /* bl power */
GPIO21_GPIO, /* LCD border switch */
GPIO22_GPIO, /* LCD border color */
GPIO96_GPIO, /* lcd power */
/* PXA Camera */
GPIO81_CIF_DD_0,
GPIO48_CIF_DD_5,
GPIO50_CIF_DD_3,
GPIO51_CIF_DD_2,
GPIO52_CIF_DD_4,
GPIO53_CIF_MCLK,
GPIO54_CIF_PCLK,
GPIO55_CIF_DD_1,
GPIO84_CIF_FV,
GPIO85_CIF_LV,
GPIO93_CIF_DD_6,
GPIO108_CIF_DD_7,
GPIO56_GPIO, /* OV9640 Powerdown */
GPIO57_GPIO, /* OV9640 Reset */
GPIO91_GPIO, /* OV9640 Power */
/* I2C */
GPIO117_GPIO, /* I2C_SCL */
GPIO118_GPIO, /* I2C_SDA */
/* Misc. */
GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
GPIO88_GPIO, /* green led */
GPIO27_GPIO, /* WM9712 IRQ */
};
/******************************************************************************
* GPIO keyboard
******************************************************************************/
#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
static const unsigned int palmz72_matrix_keys[] = {
KEY(0, 0, KEY_POWER),
KEY(0, 1, KEY_F1),
KEY(0, 2, KEY_ENTER),
KEY(1, 0, KEY_F2),
KEY(1, 1, KEY_F3),
KEY(1, 2, KEY_F4),
KEY(2, 0, KEY_UP),
KEY(2, 2, KEY_DOWN),
KEY(3, 0, KEY_RIGHT),
KEY(3, 2, KEY_LEFT),
};
static struct matrix_keymap_data almz72_matrix_keymap_data = {
.keymap = palmz72_matrix_keys,
.keymap_size = ARRAY_SIZE(palmz72_matrix_keys),
};
static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
.matrix_key_rows = 4,
.matrix_key_cols = 3,
.matrix_keymap_data = &almz72_matrix_keymap_data,
.debounce_interval = 30,
};
static void __init palmz72_kpc_init(void)
{
pxa_set_keypad_info(&palmz72_keypad_platform_data);
}
#else
static inline void palmz72_kpc_init(void) {}
#endif
/******************************************************************************
* LEDs
******************************************************************************/
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
static struct gpio_led gpio_leds[] = {
{
.name = "palmz72:green:led",
.default_trigger = "none",
.gpio = GPIO_NR_PALMZ72_LED_GREEN,
},
};
static struct gpio_led_platform_data gpio_led_info = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct platform_device palmz72_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpio_led_info,
}
};
static void __init palmz72_leds_init(void)
{
platform_device_register(&palmz72_leds);
}
#else
static inline void palmz72_leds_init(void) {}
#endif
#ifdef CONFIG_PM
/* We have some black magic here
* PalmOS ROM on recover expects special struct physical address
* to be transferred via PSPR. Using this struct PalmOS restores
* its state after sleep. As for Linux, we need to setup it the
* same way. More than that, PalmOS ROM changes some values in memory.
* For now only one location is found, which needs special treatment.
* Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
* for reading backtraces for me :)
*/
#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
static struct palmz72_resume_info palmz72_resume_info = {
.magic0 = 0xb4e6,
.magic1 = 1,
/* reset state, MMU off etc */
.arm_control = 0,
.aux_control = 0,
.ttb = 0,
.domain_access = 0,
.process_id = 0,
};
static unsigned long store_ptr;
/* syscore_ops for Palm Zire 72 PM */
static int palmz72_pm_suspend(void)
{
/* setup the resume_info struct for the original bootloader */
palmz72_resume_info.resume_addr = (u32) cpu_resume;
/* Storing memory touched by ROM */
store_ptr = *PALMZ72_SAVE_DWORD;
/* Setting PSPR to a proper value */
PSPR = __pa_symbol(&palmz72_resume_info);
return 0;
}
static void palmz72_pm_resume(void)
{
*PALMZ72_SAVE_DWORD = store_ptr;
}
static struct syscore_ops palmz72_pm_syscore_ops = {
.suspend = palmz72_pm_suspend,
.resume = palmz72_pm_resume,
};
static int __init palmz72_pm_init(void)
{
if (machine_is_palmz72()) {
register_syscore_ops(&palmz72_pm_syscore_ops);
return 0;
}
return -ENODEV;
}
device_initcall(palmz72_pm_init);
#endif
/******************************************************************************
* SoC Camera
******************************************************************************/
#if defined(CONFIG_SOC_CAMERA_OV9640) || \
defined(CONFIG_SOC_CAMERA_OV9640_MODULE)
static struct pxacamera_platform_data palmz72_pxacamera_platform_data = {
.flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
.mclk_10khz = 2600,
};
/* Board I2C devices. */
static struct i2c_board_info palmz72_i2c_device[] = {
{
I2C_BOARD_INFO("ov9640", 0x30),
}
};
static int palmz72_camera_power(struct device *dev, int power)
{
gpio_set_value(GPIO_NR_PALMZ72_CAM_PWDN, !power);
mdelay(50);
return 0;
}
static int palmz72_camera_reset(struct device *dev)
{
gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 1);
mdelay(50);
gpio_set_value(GPIO_NR_PALMZ72_CAM_RESET, 0);
mdelay(50);
return 0;
}
static struct soc_camera_link palmz72_iclink = {
.bus_id = 0, /* Match id in pxa27x_device_camera in device.c */
.board_info = &palmz72_i2c_device[0],
.i2c_adapter_id = 0,
.module_name = "ov96xx",
.power = &palmz72_camera_power,
.reset = &palmz72_camera_reset,
.flags = SOCAM_DATAWIDTH_8,
};
static struct gpiod_lookup_table palmz72_i2c_gpiod_table = {
.dev_id = "i2c-gpio.0",
.table = {
GPIO_LOOKUP_IDX("gpio-pxa", 118, NULL, 0,
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
GPIO_LOOKUP_IDX("gpio-pxa", 117, NULL, 1,
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
},
};
static struct i2c_gpio_platform_data palmz72_i2c_bus_data = {
.udelay = 10,
.timeout = 100,
};
static struct platform_device palmz72_i2c_bus_device = {
.name = "i2c-gpio",
.id = 0, /* we use this as a replacement for i2c-pxa */
.dev = {
.platform_data = &palmz72_i2c_bus_data,
}
};
static struct platform_device palmz72_camera = {
.name = "soc-camera-pdrv",
.id = -1,
.dev = {
.platform_data = &palmz72_iclink,
},
};
/* Here we request the camera GPIOs and configure them. We power up the camera
* module, deassert the reset pin, but put it into powerdown (low to no power
* consumption) mode. This allows us to later bring the module up fast. */
static struct gpio palmz72_camera_gpios[] = {
{ GPIO_NR_PALMZ72_CAM_POWER, GPIOF_INIT_HIGH,"Camera DVDD" },
{ GPIO_NR_PALMZ72_CAM_RESET, GPIOF_INIT_LOW, "Camera RESET" },
{ GPIO_NR_PALMZ72_CAM_PWDN, GPIOF_INIT_LOW, "Camera PWDN" },
};
static inline void __init palmz72_cam_gpio_init(void)
{
int ret;
ret = gpio_request_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
if (!ret)
gpio_free_array(ARRAY_AND_SIZE(palmz72_camera_gpios));
else
printk(KERN_ERR "Camera GPIO init failed!\n");
return;
}
static void __init palmz72_camera_init(void)
{
palmz72_cam_gpio_init();
pxa_set_camera_info(&palmz72_pxacamera_platform_data);
gpiod_add_lookup_table(&palmz72_i2c_gpiod_table);
platform_device_register(&palmz72_i2c_bus_device);
platform_device_register(&palmz72_camera);
}
#else
static inline void palmz72_camera_init(void) {}
#endif
static struct gpiod_lookup_table palmz72_mci_gpio_table = {
.dev_id = "pxa2xx-mci.0",
.table = {
GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_DETECT_N,
"cd", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_RO,
"wp", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_POWER_N,
"power", GPIO_ACTIVE_LOW),
{ },
},
};
/******************************************************************************
* Machine init
******************************************************************************/
static void __init palmz72_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
palm27x_mmc_init(&palmz72_mci_gpio_table);
palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
GPIO_NR_PALMZ72_USB_PULLUP, 0);
palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
-1, 113);
palm27x_pwm_init(-1, -1);
palm27x_power_init(-1, -1);
palm27x_pmic_init();
palmz72_kpc_init();
palmz72_leds_init();
palmz72_camera_init();
}
MACHINE_START(PALMZ72, "Palm Zire72")
.atag_offset = 0x100,
.map_io = pxa27x_map_io,
.nr_irqs = PXA_NR_IRQS,
.init_irq = pxa27x_init_irq,
.handle_irq = pxa27x_handle_irq,
.init_time = pxa_timer_init,
.init_machine = palmz72_init,
.restart = pxa_restart,
MACHINE_END
Reference in New Issue View Git Blame Copy Permalink