arm64: dts: exynos: Enable ir-spi in the TM2 and TM2E boards

Add the device tree node for the ir-spi driver which enables the
IR LED for remote controlling.

This patch sets first the GPR3[3] gpio line as a regulator-fixed
for enabling an external regulator which powers the IR LED.

Removes also the default assignment of GPG3[7] related to the
MOSI line of the SPI3 bus.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

1 files changed, 25 insertions, 1 deletions

diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
index 098ad557fee3..4df6b57a0a68 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2-common.dtsi
@@ -106,6 +106,13 @@
                 };
         };
 
+        irda_regulator: irda-regulator {
+                compatible = "regulator-fixed";
+                enable-active-high;
+                gpio = <&gpr3 3 GPIO_ACTIVE_HIGH>;
+                regulator-name = "irda_regulator";
+        };
+
         sound {
                 compatible = "samsung,tm2-audio";
                 audio-codec = <&wm5110>;
@@ -1074,7 +1081,6 @@
                 PIN(INPUT, gpg3-0, DOWN, FAST_SR1);
                 PIN(INPUT, gpg3-1, DOWN, FAST_SR1);
                 PIN(INPUT, gpg3-5, DOWN, FAST_SR1);
-                PIN(INPUT, gpg3-7, DOWN, FAST_SR1);
         };
 };
 
@@ -1152,6 +1158,24 @@
         };
 };
 
+&spi_3 {
+        status = "okay";
+        no-cs-readback;
+
+        irled@0 {
+                compatible = "ir-spi-led";
+                reg = <0x0>;
+                spi-max-frequency = <5000000>;
+                power-supply = <&irda_regulator>;
+                duty-cycle = <60>;
+                led-active-low;
+
+                controller-data {
+                        samsung,spi-feedback-delay = <0>;
+                };
+        };
+};
+
 &timer {
         clock-frequency = <24000000>;
 };