mirror of https://gitee.com/openkylin/linux.git
efikamx: add support for power key
This patch adds support for power key button of the efika mx. It's connected on GPIO 2 31. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -19,6 +19,7 @@
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/leds.h>
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#include <linux/input.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/fsl_devices.h>
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@ -48,10 +49,13 @@
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#define EFIKAMX_GREEN_LED (2*32 + 14)
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#define EFIKAMX_RED_LED (2*32 + 15)
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#define EFIKAMX_POWER_KEY (1*32 + 31)
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/* the pci ids pin have pull up. they're driven low according to board id */
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#define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP)
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#define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP)
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#define MX51_PAD_PCBID2 IOMUX_PAD(0x504, 0x128, 3, 0x0, 0, PAD_CTL_PUS_100K_UP)
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#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0, 0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)
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static iomux_v3_cfg_t mx51efikamx_pads[] = {
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/* UART1 */
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@ -90,6 +94,9 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = {
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MX51_PAD_CSI1_D9__GPIO_3_13,
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MX51_PAD_CSI1_VSYNC__GPIO_3_14,
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MX51_PAD_CSI1_HSYNC__GPIO_3_15,
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/* power key */
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MX51_PAD_PWRKEY,
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};
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/* Serial ports */
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@ -219,6 +226,22 @@ static struct platform_device mx51_efikamx_leds_device = {
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},
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};
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static struct gpio_keys_button mx51_efikamx_powerkey[] = {
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{
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.code = KEY_POWER,
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.gpio = EFIKAMX_POWER_KEY,
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.type = EV_PWR,
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.desc = "Power Button (CM)",
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.wakeup = 1,
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.debounce_interval = 10, /* ms */
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},
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};
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static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initconst = {
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.buttons = mx51_efikamx_powerkey,
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.nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey),
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};
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static void __init mxc_board_init(void)
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{
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mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads,
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@ -235,6 +258,7 @@ static void __init mxc_board_init(void)
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}
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platform_device_register(&mx51_efikamx_leds_device);
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imx51_add_gpio_keys(&mx51_efikamx_powerkey_data);
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}
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static void __init mx51_efikamx_timer_init(void)
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