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ARM: nomadik: add led and key for S8815 

This adds device tree hunks for the LED and userbutton on the
USB S8815 board, and set up a heartbeat trigger on the LED and
an escape key on the user button. Alter the defconfig to enable
these standard DT-enabled GPIO drivers.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2013-05-18 23:55:13 +02:00
parent 7690fbb293
commit 175210a842
3 changed files with 32 additions and 0 deletions
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22
arch/arm/boot/dts/ste-nomadik-s8815.dts
View File

@ -27,4 +27,26 @@
gpios = <&gpio3 16 0x1>;
};
};
/* The user LED on the board is set up to be used for heartbeat */
leds {
compatible = "gpio-leds";
user-led {
label = "user_led";
gpios = <&gpio0 2 0x1>;
default-state = "off";
linux,default-trigger = "heartbeat";
};
};
/* User key mapped in as "escape" */
gpio-keys {
compatible = "gpio-keys";
user-button {
label = "user_button";
gpios = <&gpio0 3 0x1>;
linux,code = <1>; /* KEY_ESC */
gpio-key,wakeup;
};
};
};

6
arch/arm/configs/nhk8815_defconfig
View File

@ -81,6 +81,7 @@ CONFIG_PPP_SYNC_TTY=m
# CONFIG_INPUT_MOUSEDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_SERIO is not set
# CONFIG_LEGACY_PTYS is not set
@ -96,6 +97,11 @@ CONFIG_DEBUG_GPIO=y
CONFIG_MMC=y
CONFIG_MMC_CLKGATE=y
CONFIG_MMC_ARMMMCI=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PL031=y
CONFIG_DMADEVICES=y

4
arch/arm/mach-nomadik/cpu-8815.c
View File

@ -99,6 +99,10 @@ static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
static struct pinctrl_map __initdata nhk8815_pinmap[] = {
PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
/* User LED on S8815 */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO2_C5", out_high),
/* User button on S8815 */
PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO3_A4", in_nopull),
/* Hog in MMC/SD card mux */
PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
/* MCCLK */