linux-kernel - [RFC v3 7/8] MIPS: DTS: CI20: add HDMI setup

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Message-Id: <90644c5a90f3321fc1542aa016c9eb848191526e.1585503354.git.hns@goldelico.com>
Date:   Sun, 29 Mar 2020 19:35:53 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Paul Cercueil <paul@...pouillou.net>,
        Paul Boddie <paul@...die.org.uk>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paulburton@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        "H. Nikolaus Schaller" <hns@...delico.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Kees Cook <keescook@...omium.org>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-gpio@...r.kernel.org, letux-kernel@...nphoenux.org,
        mips-creator-ci20-dev@...glegroups.com
Subject: [RFC v3 7/8] MIPS: DTS: CI20: add HDMI setup

From: Paul Boddie <paul@...die.org.uk>

We need to hook up
* HDMI power regulator
* HDMI connector
* DDC pinmux
* HDMI and LCD endpoint connections

Signed-off-by: Paul Boddie <paul@...die.org.uk>
Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
---
 arch/mips/boot/dts/ingenic/ci20.dts | 64 +++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index c340f947baa0..97e09382ebd7 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -62,6 +62,28 @@ eth0_power: fixedregulator@0 {
 		enable-active-high;
 	};
 
+	hdmi_power: fixedregulator@2 {
+		compatible = "regulator-fixed";
+		regulator-name = "hdmi_power";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpa 25 GPIO_ACTIVE_LOW>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	hdmi_out: connector {
+		compatible = "hdmi-connector";
+		label = "HDMI OUT";
+		type = "a";
+
+		port {
+			hdmi_con: endpoint {
+				remote-endpoint = <&dw_hdmi_out>;
+			};
+		};
+	};
+
 	wlan0_power: fixedregulator@1 {
 		compatible = "regulator-fixed";
 		regulator-name = "wlan0_power";
@@ -435,6 +457,12 @@ pins_i2c4: i2c4 {
 		bias-disable;
 	};
 
+	pins_hdmi_ddc: hdmi_ddc {
+		function = "hdmi-ddc";
+		groups = "hdmi-ddc";
+		bias-disable;
+	};
+
 	pins_nemc: nemc {
 		function = "nemc";
 		groups = "nemc-data", "nemc-cle-ale", "nemc-rd-we", "nemc-frd-fwe";
@@ -471,3 +499,39 @@ &tcu {
 	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>;
 	assigned-clock-rates = <3000000>, <3000000>;
 };
+
+&hdmi {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_hdmi_ddc>;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			dw_hdmi_in: endpoint {
+				remote-endpoint = <&lcd_out>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			dw_hdmi_out: endpoint {
+				remote-endpoint = <&hdmi_con>;
+			};
+		};
+	};
+};
+
+&lcdc0 {
+	status = "okay";
+
+	port {
+		lcd_out: endpoint {
+			remote-endpoint = <&dw_hdmi_in>;
+		};
+	};
+};
-- 
2.25.1