mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
4e9687d9c8
This patch adds generic battery driver for wm97xx chips. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
436 lines
11 KiB
C
436 lines
11 KiB
C
/*
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* Hardware definitions for PalmTX
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*
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* Author: Marek Vasut <marek.vasut@gmail.com>
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*
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* Based on work of:
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* Alex Osborne <ato@meshy.org>
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* Cristiano P. <cristianop@users.sourceforge.net>
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* Jan Herman <2hp@seznam.cz>
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* Michal Hrusecky
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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_backlight.h>
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#include <linux/gpio.h>
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#include <linux/wm97xx_batt.h>
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#include <linux/power_supply.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/audio.h>
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#include <mach/palmtx.h>
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#include <mach/mmc.h>
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#include <mach/pxafb.h>
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#include <mach/pxa-regs.h>
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#include <mach/mfp-pxa27x.h>
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#include <mach/irda.h>
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#include <mach/pxa27x_keypad.h>
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#include <mach/udc.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 palmtx_pin_config[] __initdata = {
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/* MMC */
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GPIO32_MMC_CLK,
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GPIO92_MMC_DAT_0,
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GPIO109_MMC_DAT_1,
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GPIO110_MMC_DAT_2,
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GPIO111_MMC_DAT_3,
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GPIO112_MMC_CMD,
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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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/* IrDA */
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GPIO46_FICP_RXD,
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GPIO47_FICP_TXD,
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/* PWM */
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GPIO16_PWM0_OUT,
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/* USB */
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GPIO13_GPIO,
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/* PCMCIA */
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GPIO48_nPOE,
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GPIO49_nPWE,
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GPIO50_nPIOR,
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GPIO51_nPIOW,
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GPIO85_nPCE_1,
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GPIO54_nPCE_2,
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GPIO79_PSKTSEL,
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GPIO55_nPREG,
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GPIO56_nPWAIT,
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GPIO57_nIOIS16,
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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 int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
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void *data)
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{
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int err = 0;
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/* Setup an interrupt for detecting card insert/remove events */
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err = request_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, palmtx_detect_int,
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IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
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IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
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"SD/MMC card detect", data);
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if (err) {
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printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
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__func__);
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return err;
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}
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err = gpio_request(GPIO_NR_PALMTX_SD_POWER, "SD_POWER");
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if (err)
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goto pwr_err;
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err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
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if (err)
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goto ro_err;
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printk(KERN_DEBUG "%s: irq registered\n", __func__);
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return 0;
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ro_err:
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gpio_free(GPIO_NR_PALMTX_SD_POWER);
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pwr_err:
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free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data);
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return err;
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}
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static void palmtx_mci_exit(struct device *dev, void *data)
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{
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gpio_free(GPIO_NR_PALMTX_SD_READONLY);
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gpio_free(GPIO_NR_PALMTX_SD_POWER);
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free_irq(IRQ_GPIO_PALMTX_SD_DETECT_N, data);
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}
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static void palmtx_mci_power(struct device *dev, unsigned int vdd)
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{
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struct pxamci_platform_data *p_d = dev->platform_data;
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gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
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}
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static int palmtx_mci_get_ro(struct device *dev)
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{
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return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
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}
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static struct pxamci_platform_data palmtx_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.setpower = palmtx_mci_power,
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.get_ro = palmtx_mci_get_ro,
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.init = palmtx_mci_init,
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.exit = palmtx_mci_exit,
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};
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/******************************************************************************
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* GPIO keyboard
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******************************************************************************/
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static unsigned int palmtx_matrix_keys[] = {
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KEY(0, 0, KEY_POWER),
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KEY(0, 1, KEY_F1),
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KEY(0, 2, KEY_ENTER),
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KEY(1, 0, KEY_F2),
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KEY(1, 1, KEY_F3),
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KEY(1, 2, KEY_F4),
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KEY(2, 0, KEY_UP),
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KEY(2, 2, KEY_DOWN),
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KEY(3, 0, KEY_RIGHT),
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KEY(3, 2, KEY_LEFT),
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};
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static struct pxa27x_keypad_platform_data palmtx_keypad_platform_data = {
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.matrix_key_rows = 4,
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.matrix_key_cols = 3,
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.matrix_key_map = palmtx_matrix_keys,
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.matrix_key_map_size = ARRAY_SIZE(palmtx_matrix_keys),
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.debounce_interval = 30,
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};
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/******************************************************************************
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* GPIO keys
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******************************************************************************/
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static struct gpio_keys_button palmtx_pxa_buttons[] = {
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{KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
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};
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static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
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.buttons = palmtx_pxa_buttons,
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.nbuttons = ARRAY_SIZE(palmtx_pxa_buttons),
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};
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static struct platform_device palmtx_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 = &palmtx_pxa_keys_data,
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},
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};
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/******************************************************************************
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* Backlight
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******************************************************************************/
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static int palmtx_backlight_init(struct device *dev)
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{
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int ret;
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ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
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if (ret)
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goto err;
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ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
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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_PALMTX_BL_POWER);
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err:
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return ret;
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}
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static int palmtx_backlight_notify(int brightness)
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{
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gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
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gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
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return brightness;
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}
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static void palmtx_backlight_exit(struct device *dev)
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{
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gpio_free(GPIO_NR_PALMTX_BL_POWER);
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gpio_free(GPIO_NR_PALMTX_LCD_POWER);
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}
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static struct platform_pwm_backlight_data palmtx_backlight_data = {
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.pwm_id = 0,
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.max_brightness = PALMTX_MAX_INTENSITY,
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.dft_brightness = PALMTX_MAX_INTENSITY,
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.pwm_period_ns = PALMTX_PERIOD_NS,
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.init = palmtx_backlight_init,
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.notify = palmtx_backlight_notify,
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.exit = palmtx_backlight_exit,
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};
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static struct platform_device palmtx_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa27x_device_pwm0.dev,
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.platform_data = &palmtx_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 void palmtx_irda_transceiver_mode(struct device *dev, int mode)
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{
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gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
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pxa2xx_transceiver_mode(dev, mode);
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}
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static struct pxaficp_platform_data palmtx_ficp_platform_data = {
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.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
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.transceiver_mode = palmtx_irda_transceiver_mode,
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};
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/******************************************************************************
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* UDC
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******************************************************************************/
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static void palmtx_udc_command(int cmd)
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{
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gpio_set_value(GPIO_NR_PALMTX_USB_POWER, !cmd);
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udelay(50);
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gpio_set_value(GPIO_NR_PALMTX_USB_PULLUP, !cmd);
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}
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static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = {
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.gpio_vbus = GPIO_NR_PALMTX_USB_DETECT_N,
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.gpio_vbus_inverted = 1,
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.udc_command = palmtx_udc_command,
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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_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
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if (ret)
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goto err_cs_ac;
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ret = gpio_request(GPIO_NR_PALMTX_USB_DETECT_N, "CABLE_STATE_USB");
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if (ret)
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goto err_cs_usb;
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return 0;
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err_cs_usb:
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gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
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err_cs_ac:
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return ret;
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}
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static int palmtx_is_ac_online(void)
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{
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return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
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}
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static int palmtx_is_usb_online(void)
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{
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return !gpio_get_value(GPIO_NR_PALMTX_USB_DETECT_N);
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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_PALMTX_USB_DETECT_N);
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gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
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}
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static char *palmtx_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 = palmtx_is_ac_online,
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.is_usb_online = palmtx_is_usb_online,
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.exit = power_supply_exit,
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.supplied_to = palmtx_supplicants,
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.num_supplicants = ARRAY_SIZE(palmtx_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 battery
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******************************************************************************/
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static struct wm97xx_batt_info wm97xx_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 = PALMTX_BAT_MAX_VOLTAGE,
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.min_voltage = PALMTX_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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/******************************************************************************
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* Framebuffer
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******************************************************************************/
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static struct pxafb_mode_info palmtx_lcd_modes[] = {
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{
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.pixclock = 57692,
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.xres = 320,
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.yres = 480,
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.bpp = 16,
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.left_margin = 32,
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.right_margin = 1,
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.upper_margin = 7,
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.lower_margin = 1,
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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 palmtx_lcd_screen = {
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.modes = palmtx_lcd_modes,
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.num_modes = ARRAY_SIZE(palmtx_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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&palmtx_pxa_keys,
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#endif
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&palmtx_backlight,
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&power_supply,
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};
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static struct map_desc palmtx_io_desc[] __initdata = {
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{
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.virtual = PALMTX_PCMCIA_VIRT,
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.pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
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.length = PALMTX_PCMCIA_SIZE,
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.type = MT_DEVICE
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},
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};
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static void __init palmtx_map_io(void)
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{
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pxa_map_io();
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iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
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}
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static void __init palmtx_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
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set_pxa_fb_info(&palmtx_lcd_screen);
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pxa_set_mci_info(&palmtx_mci_platform_data);
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pxa_set_udc_info(&palmtx_udc_info);
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pxa_set_ac97_info(NULL);
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pxa_set_ficp_info(&palmtx_ficp_platform_data);
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pxa_set_keypad_info(&palmtx_keypad_platform_data);
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wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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MACHINE_START(PALMTX, "Palm T|X")
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.phys_io = PALMTX_PHYS_IO_START,
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.io_pg_offst = io_p2v(0x40000000),
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.boot_params = 0xa0000100,
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.map_io = palmtx_map_io,
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.init_irq = pxa27x_init_irq,
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.timer = &pxa_timer,
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.init_machine = palmtx_init
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MACHINE_END
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