linux-kernel - [PATCH 1/2] ARM: dts: ux500: samsung-golden: Add proximity sensor

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Date:   Sun,  5 Apr 2020 19:32:51 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Stephan Gerhold <stephan@...hold.net>
Subject: [PATCH 1/2] ARM: dts: ux500: samsung-golden: Add proximity sensor

samsung-golden has the same sharp,gp2ap002s00f proximity sensor
that is also used in samsung-skomer.

A driver was added for it in
commit 97d642e23037 ("iio: light: Add a driver for Sharp GP2AP002x00F").

Now that it was merged we can add an entry for it in the device tree
for samsung-golden.

Signed-off-by: Stephan Gerhold <stephan@...hold.net>
---
 .../arm/boot/dts/ste-ux500-samsung-golden.dts | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm/boot/dts/ste-ux500-samsung-golden.dts b/arch/arm/boot/dts/ste-ux500-samsung-golden.dts
index 313f0ab16866..0e9e33f4ca3c 100644
--- a/arch/arm/boot/dts/ste-ux500-samsung-golden.dts
+++ b/arch/arm/boot/dts/ste-ux500-samsung-golden.dts
@@ -146,6 +146,32 @@ uart@...07000 {
 			pinctrl-1 = <&u2rxtx_c_1_sleep>;
 		};
 
+		i2c@...04000 {
+			status = "okay";
+
+			pinctrl-names = "default", "sleep";
+			pinctrl-0 = <&i2c0_a_1_default>;
+			pinctrl-1 = <&i2c0_a_1_sleep>;
+
+			proximity@44 {
+				compatible = "sharp,gp2ap002s00f";
+				reg = <0x44>;
+
+				/* GPIO146 (PS_INT) */
+				interrupt-parent = <&gpio4>;
+				interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+
+				vdd-supply = <&ab8500_ldo_aux1_reg>;
+				vio-supply = <&ab8500_ldo_aux8_reg>;
+
+				pinctrl-names = "default";
+				pinctrl-0 = <&proximity_default>;
+
+				sharp,proximity-far-hysteresis = <0x40>;
+				sharp,proximity-close-hysteresis = <0x0f>;
+			};
+		};
+
 		i2c@...28000 {
 			status = "okay";
 
@@ -375,6 +401,15 @@ golden_cfg1 {
 		};
 	};
 
+	proximity {
+		proximity_default: proximity_default {
+			golden_cfg1 {
+				pins = "GPIO146_D13";	/* PS_INT */
+				ste,config = <&gpio_in_nopull>;
+			};
+		};
+	};
+
 	imu {
 		imu_default: imu_default {
 			golden_cfg1 {
-- 
2.26.0