From c0e855ff905cc24728421f57455e2e69948aa800 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 13 Oct 2008 13:05:05 -0700 Subject: [PATCH] support LED signals on Beagle Export Beagle's third LED to the LED framework, now that it's accessible through the twl4030-gpio code. Claim the VBUS control, defaulting to OFF. Boards that have an EHCI connector (not rev B) will need to update this slightly. (Ideally as part of adding hooks to the ehci-map code supporting external power switching and overcurrent detection.) Signed-off-by: David Brownell Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-omap3beagle.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 19702c74955..88d25b11c3b 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -115,19 +115,26 @@ static struct twl4030_usb_data beagle_usb_data = { .usb_mode = T2_USB_MODE_ULPI, }; +static struct gpio_led gpio_leds[]; + static int beagle_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { - /* request_gpio(gpio + 0, "mmc0_cd"); - * gpio_direction_input(gpio + 0); + /* gpio + 0 is "mmc0_cd" (input/IRQ) */ + + /* REVISIT: need ehci-omap hooks for external VBUS + * power switch and overcurrent detect */ gpio_request(gpio + 1, "EHCI_nOC"); gpio_direction_input(gpio + 1); - /* gpio + 18 + 0 == ledA, nEN_USB_PWR (out) - * gpio + 18 + 1 == ledB, PMU_STAT (out, a LED) - */ + /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */ + gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR"); + gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1); + + /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */ + gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; return 0; } @@ -136,6 +143,7 @@ static struct twl4030_gpio_platform_data beagle_gpio_data = { .gpio_base = OMAP_MAX_GPIO_LINES, .irq_base = TWL4030_GPIO_IRQ_BASE, .irq_end = TWL4030_GPIO_IRQ_END, + .use_leds = true, .pullups = BIT(1), .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13) | BIT(15) | BIT(16) | BIT(17), @@ -198,6 +206,11 @@ static struct gpio_led gpio_leds[] = { .default_trigger = "mmc0", .gpio = 149, }, + { + .name = "beagleboard::pmu_stat", + .gpio = -EINVAL, /* gets replaced */ + .active_low = true, + }, }; static struct gpio_led_platform_data gpio_led_info = { -- 2.41.0