forked from luck/tmp_suning_uos_patched
4d0ce62c0a
We now handle the open drain mode internally in the I2C GPIO driver, but we will get warnings from the gpiolib that we override the default mode of the line so it becomes open drain. We can fix all in-kernel users by simply passing the right flag along in the descriptor table, and we already touched all of these files in the series so let's just tidy it up. Cc: Steven Miao <realmz6@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Wu, Aaron <Aaron.Wu@analog.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
129 lines
3.2 KiB
C
129 lines
3.2 KiB
C
/*
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* Atheros PB44 reference board support
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*
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* Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/i2c.h>
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#include <linux/gpio/machine.h>
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#include <linux/platform_data/pcf857x.h>
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#include "machtypes.h"
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#include "dev-gpio-buttons.h"
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#include "dev-leds-gpio.h"
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#include "dev-spi.h"
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#include "dev-usb.h"
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#include "pci.h"
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#define PB44_GPIO_I2C_SCL 0
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#define PB44_GPIO_I2C_SDA 1
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#define PB44_GPIO_EXP_BASE 16
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#define PB44_GPIO_SW_RESET (PB44_GPIO_EXP_BASE + 6)
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#define PB44_GPIO_SW_JUMP (PB44_GPIO_EXP_BASE + 8)
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#define PB44_GPIO_LED_JUMP1 (PB44_GPIO_EXP_BASE + 9)
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#define PB44_GPIO_LED_JUMP2 (PB44_GPIO_EXP_BASE + 10)
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#define PB44_KEYS_POLL_INTERVAL 20 /* msecs */
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#define PB44_KEYS_DEBOUNCE_INTERVAL (3 * PB44_KEYS_POLL_INTERVAL)
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static struct gpiod_lookup_table pb44_i2c_gpiod_table = {
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.dev_id = "i2c-gpio",
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.table = {
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GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SDA,
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NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
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GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SCL,
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NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
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},
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};
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static struct platform_device pb44_i2c_gpio_device = {
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.name = "i2c-gpio",
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.id = 0,
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.dev = {
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.platform_data = NULL,
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}
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};
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static struct pcf857x_platform_data pb44_pcf857x_data = {
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.gpio_base = PB44_GPIO_EXP_BASE,
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};
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static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
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{
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I2C_BOARD_INFO("pcf8575", 0x20),
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.platform_data = &pb44_pcf857x_data,
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},
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};
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static struct gpio_led pb44_leds_gpio[] __initdata = {
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{
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.name = "pb44:amber:jump1",
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.gpio = PB44_GPIO_LED_JUMP1,
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.active_low = 1,
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}, {
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.name = "pb44:green:jump2",
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.gpio = PB44_GPIO_LED_JUMP2,
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.active_low = 1,
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},
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};
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static struct gpio_keys_button pb44_gpio_keys[] __initdata = {
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{
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.desc = "soft_reset",
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.type = EV_KEY,
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.code = KEY_RESTART,
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.debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
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.gpio = PB44_GPIO_SW_RESET,
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.active_low = 1,
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} , {
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.desc = "jumpstart",
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.type = EV_KEY,
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.code = KEY_WPS_BUTTON,
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.debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
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.gpio = PB44_GPIO_SW_JUMP,
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.active_low = 1,
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}
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};
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static struct spi_board_info pb44_spi_info[] = {
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{
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.bus_num = 0,
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.chip_select = 0,
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.max_speed_hz = 25000000,
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.modalias = "m25p64",
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},
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};
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static struct ath79_spi_platform_data pb44_spi_data = {
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.bus_num = 0,
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.num_chipselect = 1,
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};
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static void __init pb44_init(void)
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{
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gpiod_add_lookup_table(&pb44_i2c_gpiod_table);
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i2c_register_board_info(0, pb44_i2c_board_info,
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ARRAY_SIZE(pb44_i2c_board_info));
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platform_device_register(&pb44_i2c_gpio_device);
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ath79_register_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
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pb44_leds_gpio);
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ath79_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL,
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ARRAY_SIZE(pb44_gpio_keys),
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pb44_gpio_keys);
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ath79_register_spi(&pb44_spi_data, pb44_spi_info,
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ARRAY_SIZE(pb44_spi_info));
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ath79_register_usb();
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ath79_register_pci();
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}
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MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
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pb44_init);
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