diff options
Diffstat (limited to 'arch/arm/mach-pxa/palm27x.c')
| -rw-r--r-- | arch/arm/mach-pxa/palm27x.c | 474 |
1 files changed, 474 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c new file mode 100644 index 000000000..0d246a1ae --- /dev/null +++ b/arch/arm/mach-pxa/palm27x.c @@ -0,0 +1,474 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Common code for Palm LD, T5, TX, Z72 + * + * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com> + */ + +#include <linux/platform_device.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.h> +#include <linux/pwm_backlight.h> +#include <linux/gpio/machine.h> +#include <linux/gpio.h> +#include <linux/wm97xx.h> +#include <linux/power_supply.h> +#include <linux/regulator/max1586.h> +#include <linux/platform_data/i2c-pxa.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include "pxa27x.h" +#include <mach/audio.h> +#include <linux/platform_data/mmc-pxamci.h> +#include <linux/platform_data/video-pxafb.h> +#include <linux/platform_data/irda-pxaficp.h> +#include "udc.h" +#include <linux/platform_data/asoc-palm27x.h> +#include "palm27x.h" + +#include "generic.h" +#include "devices.h" + +/****************************************************************************** + * SD/MMC card controller + ******************************************************************************/ +#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE) +static struct pxamci_platform_data palm27x_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, + .detect_delay_ms = 200, +}; + +void __init palm27x_mmc_init(struct gpiod_lookup_table *gtable) +{ + if (gtable) + gpiod_add_lookup_table(gtable); + pxa_set_mci_info(&palm27x_mci_platform_data); +} +#endif + +/****************************************************************************** + * Power management - standby + ******************************************************************************/ +#if defined(CONFIG_SUSPEND) +void __init palm27x_pm_init(unsigned long str_base) +{ + static const unsigned long resume[] = { + 0xe3a00101, /* mov r0, #0x40000000 */ + 0xe380060f, /* orr r0, r0, #0x00f00000 */ + 0xe590f008, /* ldr pc, [r0, #0x08] */ + }; + + /* + * Copy the bootloader. + * NOTE: PalmZ72 uses a different wakeup method! + */ + memcpy(phys_to_virt(str_base), resume, sizeof(resume)); +} +#endif + +/****************************************************************************** + * Framebuffer + ******************************************************************************/ +#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) +struct pxafb_mode_info palm_320x480_lcd_mode = { + .pixclock = 57692, + .xres = 320, + .yres = 480, + .bpp = 16, + + .left_margin = 32, + .right_margin = 1, + .upper_margin = 7, + .lower_margin = 1, + + .hsync_len = 4, + .vsync_len = 1, +}; + +struct pxafb_mode_info palm_320x320_lcd_mode = { + .pixclock = 115384, + .xres = 320, + .yres = 320, + .bpp = 16, + + .left_margin = 27, + .right_margin = 7, + .upper_margin = 7, + .lower_margin = 8, + + .hsync_len = 6, + .vsync_len = 1, +}; + +struct pxafb_mode_info palm_320x320_new_lcd_mode = { + .pixclock = 86538, + .xres = 320, + .yres = 320, + .bpp = 16, + + .left_margin = 20, + .right_margin = 8, + .upper_margin = 8, + .lower_margin = 5, + + .hsync_len = 4, + .vsync_len = 1, +}; + +static struct pxafb_mach_info palm27x_lcd_screen = { + .num_modes = 1, + .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, +}; + +static int palm27x_lcd_power; +static void palm27x_lcd_ctl(int on, struct fb_var_screeninfo *info) +{ + gpio_set_value(palm27x_lcd_power, on); +} + +void __init palm27x_lcd_init(int power, struct pxafb_mode_info *mode) +{ + palm27x_lcd_screen.modes = mode; + + if (gpio_is_valid(power)) { + if (!gpio_request(power, "LCD power")) { + pr_err("Palm27x: failed to claim lcd power gpio!\n"); + return; + } + if (!gpio_direction_output(power, 1)) { + pr_err("Palm27x: lcd power configuration failed!\n"); + return; + } + palm27x_lcd_power = power; + palm27x_lcd_screen.pxafb_lcd_power = palm27x_lcd_ctl; + } + + pxa_set_fb_info(NULL, &palm27x_lcd_screen); +} +#endif + +/****************************************************************************** + * USB Gadget + ******************************************************************************/ +#if defined(CONFIG_USB_PXA27X) || \ + defined(CONFIG_USB_PXA27X_MODULE) + +/* The actual GPIO offsets get filled in in the palm27x_udc_init() call */ +static struct gpiod_lookup_table palm27x_udc_gpiod_table = { + .dev_id = "gpio-vbus", + .table = { + GPIO_LOOKUP("gpio-pxa", 0, + "vbus", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", 0, + "pullup", GPIO_ACTIVE_HIGH), + { }, + }, +}; + +static struct platform_device palm27x_gpio_vbus = { + .name = "gpio-vbus", + .id = -1, +}; + +void __init palm27x_udc_init(int vbus, int pullup, int vbus_inverted) +{ + palm27x_udc_gpiod_table.table[0].chip_hwnum = vbus; + palm27x_udc_gpiod_table.table[1].chip_hwnum = pullup; + if (vbus_inverted) + palm27x_udc_gpiod_table.table[0].flags = GPIO_ACTIVE_LOW; + + gpiod_add_lookup_table(&palm27x_udc_gpiod_table); + platform_device_register(&palm27x_gpio_vbus); +} +#endif + +/****************************************************************************** + * IrDA + ******************************************************************************/ +#if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE) +static struct pxaficp_platform_data palm27x_ficp_platform_data = { + .transceiver_cap = IR_SIRMODE | IR_OFF, +}; + +void __init palm27x_irda_init(int pwdn) +{ + palm27x_ficp_platform_data.gpio_pwdown = pwdn; + pxa_set_ficp_info(&palm27x_ficp_platform_data); +} +#endif + +/****************************************************************************** + * WM97xx audio, battery + ******************************************************************************/ +#if defined(CONFIG_TOUCHSCREEN_WM97XX) || \ + defined(CONFIG_TOUCHSCREEN_WM97XX_MODULE) +static struct wm97xx_batt_pdata palm27x_batt_pdata = { + .batt_aux = WM97XX_AUX_ID3, + .temp_aux = WM97XX_AUX_ID2, + .charge_gpio = -1, + .batt_mult = 1000, + .batt_div = 414, + .temp_mult = 1, + .temp_div = 1, + .batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO, + .batt_name = "main-batt", +}; + +static struct wm97xx_pdata palm27x_wm97xx_pdata = { + .batt_pdata = &palm27x_batt_pdata, +}; + +static pxa2xx_audio_ops_t palm27x_ac97_pdata = { + .codec_pdata = { &palm27x_wm97xx_pdata, }, +}; + +static struct palm27x_asoc_info palm27x_asoc_pdata = { + .jack_gpio = -1, +}; + +static struct platform_device palm27x_asoc = { + .name = "palm27x-asoc", + .id = -1, + .dev = { + .platform_data = &palm27x_asoc_pdata, + }, +}; + +void __init palm27x_ac97_init(int minv, int maxv, int jack, int reset) +{ + palm27x_ac97_pdata.reset_gpio = reset; + palm27x_asoc_pdata.jack_gpio = jack; + + if (minv < 0 || maxv < 0) { + palm27x_ac97_pdata.codec_pdata[0] = NULL; + pxa_set_ac97_info(&palm27x_ac97_pdata); + } else { + palm27x_batt_pdata.min_voltage = minv, + palm27x_batt_pdata.max_voltage = maxv, + + pxa_set_ac97_info(&palm27x_ac97_pdata); + platform_device_register(&palm27x_asoc); + } +} +#endif + +/****************************************************************************** + * Backlight + ******************************************************************************/ +#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE) +static struct pwm_lookup palm27x_pwm_lookup[] = { + PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 3500 * 1024, + PWM_POLARITY_NORMAL), +}; + +static int palm_bl_power; +static int palm_lcd_power; + +static int palm27x_backlight_init(struct device *dev) +{ + int ret; + + ret = gpio_request(palm_bl_power, "BL POWER"); + if (ret) + goto err; + ret = gpio_direction_output(palm_bl_power, 0); + if (ret) + goto err2; + + if (gpio_is_valid(palm_lcd_power)) { + ret = gpio_request(palm_lcd_power, "LCD POWER"); + if (ret) + goto err2; + ret = gpio_direction_output(palm_lcd_power, 0); + if (ret) + goto err3; + } + + return 0; +err3: + gpio_free(palm_lcd_power); +err2: + gpio_free(palm_bl_power); +err: + return ret; +} + +static int palm27x_backlight_notify(struct device *dev, int brightness) +{ + gpio_set_value(palm_bl_power, brightness); + if (gpio_is_valid(palm_lcd_power)) + gpio_set_value(palm_lcd_power, brightness); + return brightness; +} + +static void palm27x_backlight_exit(struct device *dev) +{ + gpio_free(palm_bl_power); + if (gpio_is_valid(palm_lcd_power)) + gpio_free(palm_lcd_power); +} + +static struct platform_pwm_backlight_data palm27x_backlight_data = { + .max_brightness = 0xfe, + .dft_brightness = 0x7e, + .init = palm27x_backlight_init, + .notify = palm27x_backlight_notify, + .exit = palm27x_backlight_exit, +}; + +static struct platform_device palm27x_backlight = { + .name = "pwm-backlight", + .dev = { + .parent = &pxa27x_device_pwm0.dev, + .platform_data = &palm27x_backlight_data, + }, +}; + +void __init palm27x_pwm_init(int bl, int lcd) +{ + palm_bl_power = bl; + palm_lcd_power = lcd; + pwm_add_table(palm27x_pwm_lookup, ARRAY_SIZE(palm27x_pwm_lookup)); + platform_device_register(&palm27x_backlight); +} +#endif + +/****************************************************************************** + * Power supply + ******************************************************************************/ +#if defined(CONFIG_PDA_POWER) || defined(CONFIG_PDA_POWER_MODULE) +static int palm_ac_state; +static int palm_usb_state; + +static int palm27x_power_supply_init(struct device *dev) +{ + int ret; + + ret = gpio_request(palm_ac_state, "AC state"); + if (ret) + goto err1; + ret = gpio_direction_input(palm_ac_state); + if (ret) + goto err2; + + if (gpio_is_valid(palm_usb_state)) { + ret = gpio_request(palm_usb_state, "USB state"); + if (ret) + goto err2; + ret = gpio_direction_input(palm_usb_state); + if (ret) + goto err3; + } + + return 0; +err3: + gpio_free(palm_usb_state); +err2: + gpio_free(palm_ac_state); +err1: + return ret; +} + +static void palm27x_power_supply_exit(struct device *dev) +{ + gpio_free(palm_usb_state); + gpio_free(palm_ac_state); +} + +static int palm27x_is_ac_online(void) +{ + return gpio_get_value(palm_ac_state); +} + +static int palm27x_is_usb_online(void) +{ + return !gpio_get_value(palm_usb_state); +} +static char *palm27x_supplicants[] = { + "main-battery", +}; + +static struct pda_power_pdata palm27x_ps_info = { + .init = palm27x_power_supply_init, + .exit = palm27x_power_supply_exit, + .is_ac_online = palm27x_is_ac_online, + .is_usb_online = palm27x_is_usb_online, + .supplied_to = palm27x_supplicants, + .num_supplicants = ARRAY_SIZE(palm27x_supplicants), +}; + +static struct platform_device palm27x_power_supply = { + .name = "pda-power", + .id = -1, + .dev = { + .platform_data = &palm27x_ps_info, + }, +}; + +void __init palm27x_power_init(int ac, int usb) +{ + palm_ac_state = ac; + palm_usb_state = usb; + platform_device_register(&palm27x_power_supply); +} +#endif + +/****************************************************************************** + * Core power regulator + ******************************************************************************/ +#if defined(CONFIG_REGULATOR_MAX1586) || \ + defined(CONFIG_REGULATOR_MAX1586_MODULE) +static struct regulator_consumer_supply palm27x_max1587a_consumers[] = { + REGULATOR_SUPPLY("vcc_core", NULL), +}; + +static struct regulator_init_data palm27x_max1587a_v3_info = { + .constraints = { + .name = "vcc_core range", + .min_uV = 900000, + .max_uV = 1705000, + .always_on = 1, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + }, + .consumer_supplies = palm27x_max1587a_consumers, + .num_consumer_supplies = ARRAY_SIZE(palm27x_max1587a_consumers), +}; + +static struct max1586_subdev_data palm27x_max1587a_subdevs[] = { + { + .name = "vcc_core", + .id = MAX1586_V3, + .platform_data = &palm27x_max1587a_v3_info, + } +}; + +static struct max1586_platform_data palm27x_max1587a_info = { + .subdevs = palm27x_max1587a_subdevs, + .num_subdevs = ARRAY_SIZE(palm27x_max1587a_subdevs), + .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */ +}; + +static struct i2c_board_info __initdata palm27x_pi2c_board_info[] = { + { + I2C_BOARD_INFO("max1586", 0x14), + .platform_data = &palm27x_max1587a_info, + }, +}; + +static struct i2c_pxa_platform_data palm27x_i2c_power_info = { + .use_pio = 1, +}; + +void __init palm27x_pmic_init(void) +{ + i2c_register_board_info(1, ARRAY_AND_SIZE(palm27x_pi2c_board_info)); + pxa27x_set_i2c_power_info(&palm27x_i2c_power_info); +} +#endif |