linux-kernel - [PATCH 1/3] dt-bindings: soc: imx: add fdcc clock to i.MX8MP hdmi blk ctrl

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Date: Sat,  6 Jan 2024 16:39:48 -0600
From: Adam Ford <aford173@...il.com>
To: linux-pm@...r.kernel.org
Cc: Adam Ford <aford173@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Lucas Stach <l.stach@...gutronix.de>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] dt-bindings: soc: imx: add fdcc clock to i.MX8MP hdmi blk ctrl

Per guidance from the NXP downstream kernel, if the clock is
disabled before HDMI/LCDIF probe, LCDIF will not get pixel
clock from HDMI PHY and throw an error.  Fix this by adding
the fdcc clock to the hdmi_blk_ctrl.

Signed-off-by: Adam Ford <aford173@...il.com>

diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml
index 1be4ce2a45e8..741b5d8da4bb 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml
@@ -42,8 +42,8 @@ properties:
       - const: hdmi-tx-phy
 
   clocks:
-    minItems: 4
-    maxItems: 4
+    minItems: 5
+    maxItems: 5
 
   clock-names:
     items:
@@ -51,6 +51,7 @@ properties:
       - const: axi
       - const: ref_266m
       - const: ref_24m
+      - const: fdcc
 
   interconnects:
     maxItems: 3
@@ -82,8 +83,9 @@ examples:
         clocks = <&clk IMX8MP_CLK_HDMI_APB>,
                  <&clk IMX8MP_CLK_HDMI_ROOT>,
                  <&clk IMX8MP_CLK_HDMI_REF_266M>,
-                 <&clk IMX8MP_CLK_HDMI_24M>;
-        clock-names = "apb", "axi", "ref_266m", "ref_24m";
+                 <&clk IMX8MP_CLK_HDMI_24M>,
+                 <&clk IMX8MP_CLK_HDMI_FDCC_TST>;
+        clock-names = "apb", "axi", "ref_266m", "ref_24m", "fdcc";
         power-domains = <&pgc_hdmimix>, <&pgc_hdmimix>, <&pgc_hdmimix>,
                         <&pgc_hdmimix>, <&pgc_hdmimix>, <&pgc_hdmimix>,
                         <&pgc_hdmimix>, <&pgc_hdmi_phy>;
-- 
2.43.0