f5a3b55287
Use a PWM lookup table to provide the PWM to the pwm-backlight device. The driver has a legacy code path that is required only because boards still use the legacy method of requesting PWMs by global ID. Replacing these usages allows that legacy fallback to be removed. Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
376 lines
10 KiB
C
376 lines
10 KiB
C
/*
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* Hardware definitions for Palm Tungsten|E2
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*
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* Author:
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* Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
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*
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* Rewrite for mainline:
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* Marek Vasut <marek.vasut@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* (find more info at www.hackndev.com)
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*
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*/
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/pda_power.h>
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#include <linux/pwm.h>
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#include <linux/pwm_backlight.h>
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#include <linux/gpio.h>
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#include <linux/wm97xx.h>
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#include <linux/power_supply.h>
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#include <linux/usb/gpio_vbus.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <mach/pxa25x.h>
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#include <mach/audio.h>
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#include <mach/palmte2.h>
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#include <linux/platform_data/mmc-pxamci.h>
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#include <linux/platform_data/video-pxafb.h>
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#include <linux/platform_data/irda-pxaficp.h>
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#include <mach/udc.h>
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#include <linux/platform_data/asoc-palm27x.h>
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#include "generic.h"
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#include "devices.h"
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/******************************************************************************
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* Pin configuration
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******************************************************************************/
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static unsigned long palmte2_pin_config[] __initdata = {
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/* MMC */
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GPIO6_MMC_CLK,
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GPIO8_MMC_CS0,
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GPIO10_GPIO, /* SD detect */
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GPIO55_GPIO, /* SD power */
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GPIO51_GPIO, /* SD r/o switch */
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/* AC97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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/* PWM */
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GPIO16_PWM0_OUT,
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/* USB */
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GPIO15_GPIO, /* usb detect */
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GPIO53_GPIO, /* usb power */
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/* IrDA */
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GPIO48_GPIO, /* ir disable */
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GPIO46_FICP_RXD,
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GPIO47_FICP_TXD,
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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/* GPIO KEYS */
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GPIO5_GPIO, /* notes */
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GPIO7_GPIO, /* tasks */
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GPIO11_GPIO, /* calendar */
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GPIO13_GPIO, /* contacts */
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GPIO14_GPIO, /* center */
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GPIO19_GPIO, /* left */
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GPIO20_GPIO, /* right */
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GPIO21_GPIO, /* down */
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GPIO22_GPIO, /* up */
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/* MISC */
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GPIO1_RST, /* reset */
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GPIO4_GPIO, /* Hotsync button */
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GPIO9_GPIO, /* power detect */
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GPIO15_GPIO, /* earphone detect */
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GPIO37_GPIO, /* LCD power */
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GPIO56_GPIO, /* Backlight power */
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};
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/******************************************************************************
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* SD/MMC card controller
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******************************************************************************/
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static struct pxamci_platform_data palmte2_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.gpio_card_detect = GPIO_NR_PALMTE2_SD_DETECT_N,
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.gpio_card_ro = GPIO_NR_PALMTE2_SD_READONLY,
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.gpio_power = GPIO_NR_PALMTE2_SD_POWER,
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};
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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/******************************************************************************
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* GPIO keys
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******************************************************************************/
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static struct gpio_keys_button palmte2_pxa_buttons[] = {
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{KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
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{KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
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{KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
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{KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
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{KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
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{KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
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{KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
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{KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
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{KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
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};
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static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
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.buttons = palmte2_pxa_buttons,
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.nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
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};
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static struct platform_device palmte2_pxa_keys = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &palmte2_pxa_keys_data,
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},
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};
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#endif
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/******************************************************************************
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* Backlight
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******************************************************************************/
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static struct pwm_lookup palmte2_pwm_lookup[] = {
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PWM_LOOKUP("pxa25x-pwm.0", 0, "pwm-backlight.0", NULL,
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PALMTE2_PERIOD_NS, PWM_POLARITY_NORMAL),
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};
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static struct gpio palmte_bl_gpios[] = {
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{ GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
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{ GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
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};
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static int palmte2_backlight_init(struct device *dev)
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{
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return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
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}
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static int palmte2_backlight_notify(struct device *dev, int brightness)
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{
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gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
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gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
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return brightness;
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}
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static void palmte2_backlight_exit(struct device *dev)
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{
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gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
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}
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static struct platform_pwm_backlight_data palmte2_backlight_data = {
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.max_brightness = PALMTE2_MAX_INTENSITY,
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.dft_brightness = PALMTE2_MAX_INTENSITY,
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.enable_gpio = -1,
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.init = palmte2_backlight_init,
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.notify = palmte2_backlight_notify,
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.exit = palmte2_backlight_exit,
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};
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static struct platform_device palmte2_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa25x_device_pwm0.dev,
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.platform_data = &palmte2_backlight_data,
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},
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};
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/******************************************************************************
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* IrDA
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******************************************************************************/
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static struct pxaficp_platform_data palmte2_ficp_platform_data = {
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.gpio_pwdown = GPIO_NR_PALMTE2_IR_DISABLE,
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.transceiver_cap = IR_SIRMODE | IR_OFF,
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};
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/******************************************************************************
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* UDC
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******************************************************************************/
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static struct gpio_vbus_mach_info palmte2_udc_info = {
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.gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
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.gpio_vbus_inverted = 1,
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.gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
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};
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static struct platform_device palmte2_gpio_vbus = {
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.name = "gpio-vbus",
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.id = -1,
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.dev = {
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.platform_data = &palmte2_udc_info,
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},
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};
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/******************************************************************************
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* Power supply
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******************************************************************************/
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static int power_supply_init(struct device *dev)
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{
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int ret;
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ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
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if (ret)
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goto err1;
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ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
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if (ret)
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goto err2;
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return 0;
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err2:
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gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
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err1:
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return ret;
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}
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static int palmte2_is_ac_online(void)
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{
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return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
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}
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static void power_supply_exit(struct device *dev)
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{
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gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
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}
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static char *palmte2_supplicants[] = {
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"main-battery",
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};
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static struct pda_power_pdata power_supply_info = {
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.init = power_supply_init,
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.is_ac_online = palmte2_is_ac_online,
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.exit = power_supply_exit,
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.supplied_to = palmte2_supplicants,
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.num_supplicants = ARRAY_SIZE(palmte2_supplicants),
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};
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static struct platform_device power_supply = {
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.name = "pda-power",
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.id = -1,
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.dev = {
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.platform_data = &power_supply_info,
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},
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};
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/******************************************************************************
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* WM97xx audio, battery
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******************************************************************************/
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static struct wm97xx_batt_pdata palmte2_batt_pdata = {
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.batt_aux = WM97XX_AUX_ID3,
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.temp_aux = WM97XX_AUX_ID2,
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.charge_gpio = -1,
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.max_voltage = PALMTE2_BAT_MAX_VOLTAGE,
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.min_voltage = PALMTE2_BAT_MIN_VOLTAGE,
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.batt_mult = 1000,
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.batt_div = 414,
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.temp_mult = 1,
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.temp_div = 1,
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.batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
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.batt_name = "main-batt",
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};
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static struct wm97xx_pdata palmte2_wm97xx_pdata = {
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.batt_pdata = &palmte2_batt_pdata,
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};
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static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
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.codec_pdata = { &palmte2_wm97xx_pdata, },
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};
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static struct palm27x_asoc_info palmte2_asoc_pdata = {
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.jack_gpio = GPIO_NR_PALMTE2_EARPHONE_DETECT,
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};
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static struct platform_device palmte2_asoc = {
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.name = "palm27x-asoc",
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.id = -1,
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.dev = {
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.platform_data = &palmte2_asoc_pdata,
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},
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};
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/******************************************************************************
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* Framebuffer
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******************************************************************************/
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static struct pxafb_mode_info palmte2_lcd_modes[] = {
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{
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.pixclock = 77757,
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.xres = 320,
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.yres = 320,
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.bpp = 16,
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.left_margin = 28,
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.right_margin = 7,
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.upper_margin = 7,
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.lower_margin = 5,
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.hsync_len = 4,
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.vsync_len = 1,
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},
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};
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static struct pxafb_mach_info palmte2_lcd_screen = {
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.modes = palmte2_lcd_modes,
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.num_modes = ARRAY_SIZE(palmte2_lcd_modes),
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
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};
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/******************************************************************************
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* Machine init
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******************************************************************************/
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static struct platform_device *devices[] __initdata = {
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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&palmte2_pxa_keys,
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#endif
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&palmte2_backlight,
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&power_supply,
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&palmte2_asoc,
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&palmte2_gpio_vbus,
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};
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/* setup udc GPIOs initial state */
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static void __init palmte2_udc_init(void)
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{
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if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
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gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
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gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
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}
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}
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static void __init palmte2_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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pxa_set_fb_info(NULL, &palmte2_lcd_screen);
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pxa_set_mci_info(&palmte2_mci_platform_data);
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palmte2_udc_init();
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pxa_set_ac97_info(&palmte2_ac97_pdata);
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pxa_set_ficp_info(&palmte2_ficp_platform_data);
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pwm_add_table(palmte2_pwm_lookup, ARRAY_SIZE(palmte2_pwm_lookup));
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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MACHINE_START(PALMTE2, "Palm Tungsten|E2")
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.atag_offset = 0x100,
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.map_io = pxa25x_map_io,
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.nr_irqs = PXA_NR_IRQS,
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.init_irq = pxa25x_init_irq,
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.handle_irq = pxa25x_handle_irq,
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.init_time = pxa_timer_init,
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.init_machine = palmte2_init,
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.restart = pxa_restart,
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MACHINE_END
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