linux-kernel - [PATCH 06/11] ARM: dts: exynos: add panel supply in Tiny4412

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Date:   Fri, 20 Jan 2023 16:53:59 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Inki Dae <inki.dae@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Kukjin Kim <kgene@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     replicant@...osl.org, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Martin Jücker <martin.juecker@...il.com>,
        Henrik Grimler <henrik@...mler.se>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 06/11] ARM: dts: exynos: add panel supply in Tiny4412

The simple panel should have a supply.  Provide a stub, as the board DTS
does not have a PMIC node, to silence warning:

  exynos4412-tiny4412.dtb: panel: 'power-supply' is a required property

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 arch/arm/boot/dts/exynos4412-tiny4412.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exynos4412-tiny4412.dts
index 04388c575efe..e0b6162d2e2a 100644
--- a/arch/arm/boot/dts/exynos4412-tiny4412.dts
+++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts
@@ -79,6 +79,7 @@ pmic_ap_clk: pmic-ap-clk {
 
 	panel {
 		compatible = "innolux,at070tn92";
+		power-supply = <&vddq_lcd>;
 
 		port {
 			panel_input: endpoint {
@@ -86,6 +87,13 @@ panel_input: endpoint {
 			};
 		};
 	};
+
+	vddq_lcd: regulator-vddq-lcd {
+		compatible = "regulator-fixed";
+		regulator-name = "vddq-lcd";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
 };
 
 &cpu_thermal {
-- 
2.34.1