Commit 175210a8 authored by Linus Walleij's avatar Linus Walleij
Browse files

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: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 7690fbb2

arch/arm/boot/dts/ste-nomadik-s8815.dts

+22 −0
Original line number Diff line number Diff line
@@ -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;

		};

	};

};

arch/arm/configs/nhk8815_defconfig

+6 −0
Original line number Diff line number Diff line
@@ -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

arch/arm/mach-nomadik/cpu-8815.c

+4 −0
Original line number Diff line number Diff line
@@ -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 */

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