linux-imx-2.6.35: add USR led support to imx53qsb

this allows to have an heartbeat trigger on this led for example

Signed-off-by: Eric Bénard <eric@eukrea.com>

2 files changed, 70 insertions, 1 deletions

diff --git a/recipes-kernel/linux/linux-imx/0001-mx53_loco-add-USR-led-support.patch b/recipes-kernel/linux/linux-imx/0001-mx53_loco-add-USR-led-support.patch
new file mode 100644
index 0000000..1eff494
--- /dev/null
+++ b/recipes-kernel/linux/linux-imx/0001-mx53_loco-add-USR-led-support.patch
@@ -0,0 +1,68 @@
+From 564ac4b9d7da4cc8e6fdca33ca45d19649dc3366 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Eric=20B=C3=A9nard?= <eric@eukrea.com>
+Date: Wed, 7 Mar 2012 23:24:54 +0100
+Subject: [PATCH] mx53_loco: add USR led support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Eric Bénard <eric@eukrea.com>
+---
+ arch/arm/mach-mx5/mx53_loco.c |   27 +++++++++++++++++++++++++++
+ 1 files changed, 27 insertions(+), 0 deletions(-)
+
+diff --git a/arch/arm/mach-mx5/mx53_loco.c b/arch/arm/mach-mx5/mx53_loco.c
+index c8417da..c91952b 100644
+--- a/arch/arm/mach-mx5/mx53_loco.c
++++ b/arch/arm/mach-mx5/mx53_loco.c
+@@ -835,6 +835,28 @@ static void __init fixup_mxc_board(struct machine_desc *desc, struct tag *tags,
+        }
+ }
+ 
++static struct gpio_led gpio_leds[] = {
++       {
++               .name                   = "USR",
++               .default_trigger        = "heartbeat",
++               .active_low             = 0,
++               .gpio                   = USER_LED_EN,
++       },
++};
++
++static struct gpio_led_platform_data gpio_led_info = {
++       .leds           = gpio_leds,
++       .num_leds       = ARRAY_SIZE(gpio_leds),
++};
++
++static struct platform_device leds_gpio = {
++       .name   = "leds-gpio",
++       .id     = -1,
++       .dev    = {
++               .platform_data  = &gpio_led_info,
++       },
++};
++
+ static void __init mx53_loco_io_init(void)
+ {
+        mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads,
+@@ -865,6 +887,10 @@ static void __init mx53_loco_io_init(void)
+        gpio_request(DISP0_POWER_EN, "disp0-power-en");
+        gpio_direction_output(DISP0_POWER_EN, 1);
+ 
++       /* USR LED */
++       gpio_request(USER_LED_EN, "user-led-en");
++       gpio_direction_output(USER_LED_EN, 1);
++       gpio_free(USER_LED_EN);
+ }
+ 
+ /*!
+@@ -979,6 +1005,7 @@ static void __init mxc_board_init(void)
+        loco_add_device_buttons();
+        pm_power_off = da9053_power_off;
+        pm_i2c_init(I2C1_BASE_ADDR - MX53_OFFSET);
++       platform_device_register(&leds_gpio);
+ }
+ 
+ static void __init mx53_loco_timer_init(void)
+-- 
+1.7.7.6
+
diff --git a/recipes-kernel/linux/linux-imx_2.6.35.3.bb b/recipes-kernel/linux/linux-imx_2.6.35.3.bb
index dd3e71f..a7f0812 100644
--- a/recipes-kernel/linux/linux-imx_2.6.35.3.bb
+++ b/recipes-kernel/linux/linux-imx_2.6.35.3.bb
@@ -4,7 +4,7 @@
 DESCRIPTION = "Linux kernel for imx platforms"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
-PR = "r10"
+PR = "r11"
 
 inherit kernel
 COMPATIBLE_MACHINE = "(imx53qsb|imx53ard|imx51evk)"
@@ -26,6 +26,7 @@ SRC_URI = "git://opensource.freescale.com/pub/scm/imx/linux-2.6-imx.git;tag=rel_
            file://1146-ENGR00170244-1-ARM-AHCI-Enable-PDDQ-mode-when-no-d.patch \
            file://1147-ENGR00170244-2-ARM-AHCI-Enable-PDDQ-mode-when-no-d.patch \
            file://no-unaligned-access.patch \
+           file://0001-mx53_loco-add-USR-led-support.patch \
            file://defconfig \
           "