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authorSourav Poddar <sourav.poddar@ti.com>2013-12-19 18:03:34 +0530
committerBenoit Cousson <bcousson@baylibre.com>2014-03-02 18:36:50 +0100
commit2e3a9385d7b40e2f094f03a79c7b3930002aac17 (patch)
treeae50a850e221f39f0f341d42eca039eb52157d34 /arch/arm/boot/dts/am43x-epos-evm.dts
parentaa8423054a9d6de0bfa62990b308f077de5b567e (diff)
ARM: dts: am43x-epos-evm: Add pwm backlight support.
Add pwm backlight support for am43x epos evm. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Diffstat (limited to 'arch/arm/boot/dts/am43x-epos-evm.dts')
-rw-r--r--arch/arm/boot/dts/am43x-epos-evm.dts24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index fbf9c4c7a94..0899c5fa882 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -13,6 +13,7 @@
#include "am4372.dtsi"
#include <dt-bindings/pinctrl/am43xx.h>
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
/ {
model = "TI AM43x EPOS EVM";
@@ -79,6 +80,12 @@
0x18c (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* i2c0_scl.i2c0_scl */
>;
};
+
+ ecap0_pins: backlight_pins {
+ pinctrl-single,pins = <
+ 0x164 MUX_MODE0 /* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
+ >;
+ };
};
matrix_keypad: matrix_keypad@0 {
@@ -113,6 +120,13 @@
0x0203006c /* DOWN */
0x03030069>; /* LEFT */
};
+
+ backlight {
+ compatible = "pwm-backlight";
+ pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;
+ brightness-levels = <0 51 53 56 62 75 101 152 255>;
+ default-brightness-level = <8>;
+ };
};
&mmc1 {
@@ -184,3 +198,13 @@
&gpio3 {
status = "okay";
};
+
+&epwmss0 {
+ status = "okay";
+};
+
+&ecap0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&ecap0_pins>;
+};