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From:   Paul Kocialkowski <contact@paulk.fr>
To:     devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Cc:     Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Maxime Ripard <maxime.ripard@bootlin.com>,
        Chen-Yu Tsai <wens@csie.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        David Airlie <airlied@linux.ie>, linux-sunxi@googlegroups.com,
        Mark Van den Borre <mark@fosdem.org>,
        Gerry Demaret <gerry@fosdem.org>,
        Luc Verhaegen <libv@skynet.be>,
        Paul Kocialkowski <contact@paulk.fr>
Subject: [PATCH NOT FOR MERGE 4/4] ARM: dts: sun7i-a20-bananapi: Add bindings for the BL035 3.5" LCD
Date:   Wed, 10 Oct 2018 13:41:34 +0200
Message-Id: <20181010114134.8211-4-contact@paulk.fr>
In-Reply-To: <20181010114134.8211-1-contact@paulk.fr>
References: <20181010114134.8211-1-contact@paulk.fr>
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Sender: linux-kernel-owner@vger.kernel.org
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This adds the backlight panel, power, pwm and tcon0 device-tree bindings
required for supporting the 3.5" LCD from Lemaker on the BananaPi M1.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
---
 arch/arm/boot/dts/sun7i-a20-bananapi.dts | 89 ++++++++++++++++++++++++
 1 file changed, 89 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index 70dfc4ac0bb5..dd2f8bc41fae 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -48,6 +48,7 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	model = "LeMaker Banana Pi";
@@ -63,6 +64,75 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm 0 50000 0>;
+		brightness-levels = <  0   1   1   1   1   2   2   2
+				       2   3   3   3   3   4   4   4
+				       5   5   5   6   6   6   7   7
+				       8   8   8   9   9   9  10  10
+				      10  11  11  12  12  12  13  13
+				      14  14  14  15  15  16  16  17
+				      17  17  18  18  19  19  20  20
+				      21  21  21  22  22  23  23  24
+				      24  25  25  26  26  27  27  28
+				      28  29  30  30  31  31  32  32
+				      33  33  34  35  35  36  36  37
+				      38  38  39  39  40  41  41  42
+				      43  43  44  44  45  46  47  47
+				      48  49  49  50  51  51  52  53
+				      54  54  55  56  57  57  58  59
+				      60  61  61  62  63  64  65  65
+				      66  67  68  69  70  71  71  72
+				      73  74  75  76  77  78  79  80
+				      81  82  83  84  85  86  87  88
+				      89  90  91  92  93  94  95  96
+				      97  98  99 101 102 103 104 105
+				     106 108 109 110 111 112 114 115
+				     116 117 119 120 121 123 124 125
+				     127 128 129 131 132 133 135 136
+				     138 139 141 142 144 145 147 148
+				     150 151 153 154 156 157 159 161
+				     162 164 166 167 169 171 173 174
+				     176 178 180 181 183 185 187 189
+				     191 192 194 196 198 200 202 204
+				     206 208 210 212 214 216 219 221
+				     223 225 227 229 232 234 236 238
+				     241 242 244 246 248 250 253 255>;
+		default-brightness-level = <128>;
+		enable-gpios = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */
+	};
+
+	panel: panel {
+		compatible = "lemaker,bl035";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		power-supply = <&panel_power>;
+		backlight = <&backlight>;
+
+		port@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			panel_input: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&tcon0_out_panel>;
+			};
+		};
+	};
+
+	panel_power: panel_power {
+		compatible = "regulator-fixed";
+		regulator-name = "panel-power";
+		regulator-min-microvolt = <10400000>;
+		regulator-max-microvolt = <10400000>;
+		gpio = <&pio 7 12 GPIO_ACTIVE_HIGH>; /* PH12 */
+		enable-active-high;
+		regulator-boot-on;
+	};
+
 	hdmi-connector {
 		compatible = "hdmi-connector";
 		type = "a";
@@ -275,6 +345,12 @@
 	};
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_pins_a>;
+	status = "okay";
+};
+
 #include "axp209.dtsi"
 
 &reg_dcdc2 {
@@ -322,6 +398,19 @@
 	status = "okay";
 };
 
+&tcon0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&lcd0_rgb888_pins>;
+	status = "okay";
+};
+
+&tcon0_out {
+	tcon0_out_panel: endpoint@0 {
+		reg = <0>;
+		remote-endpoint = <&panel_input>;
+	};
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins_a>;
-- 
2.19.0