From: Jerome Brunet <jbrunet@baylibre.com>
Date: Wed, 26 Jun 2024 15:27:31 +0000 (+0200)
Subject: arm64: dts: amlogic: setup hdmi system clock
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1443b6ea806dfcdcee6c894784332c9c947ac319;p=users%2Fjedix%2Flinux-maple.git

arm64: dts: amlogic: setup hdmi system clock

HDMI Tx needs the system clock set on the xtal rate.
This clock is managed by the main clock controller of the related SoCs.

Currently 2 part of the display drivers race to setup the HDMI system
clock by directly poking the controller register. The clock API should
be used to setup the rate instead.

Use assigned-clock to setup the HDMI system clock.

Fixes: 6939db7e0dbf ("ARM64: dts: meson-gx: Add support for HDMI output")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20240626152733.1350376-3-jbrunet@baylibre.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 4057ee808a582..d08c97797010d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -215,6 +215,11 @@
 				#sound-dai-cells = <0>;
 				status = "disabled";
 
+				assigned-clocks = <&clkc CLKID_HDMI_SEL>,
+						  <&clkc CLKID_HDMI>;
+				assigned-clock-parents = <&xtal>, <0>;
+				assigned-clock-rates = <0>, <24000000>;
+
 				/* VPU VENC Input */
 				hdmi_tx_venc_port: port@0 {
 					reg = <0>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 041c37b809f27..ed00e67e6923a 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -316,6 +316,11 @@
 		 <&clkc CLKID_GCLK_VENCI_INT0>;
 	clock-names = "isfr", "iahb", "venci";
 	power-domains = <&pwrc PWRC_GXBB_VPU_ID>;
+
+	assigned-clocks = <&clkc CLKID_HDMI_SEL>,
+			  <&clkc CLKID_HDMI>;
+	assigned-clock-parents = <&xtal>, <0>;
+	assigned-clock-rates = <0>, <24000000>;
 };
 
 &sysctrl {
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index 067108800a58d..f58d1790de1cb 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -328,6 +328,11 @@
 		 <&clkc CLKID_GCLK_VENCI_INT0>;
 	clock-names = "isfr", "iahb", "venci";
 	power-domains = <&pwrc PWRC_GXBB_VPU_ID>;
+
+	assigned-clocks = <&clkc CLKID_HDMI_SEL>,
+			  <&clkc CLKID_HDMI>;
+	assigned-clock-parents = <&xtal>, <0>;
+	assigned-clock-rates = <0>, <24000000>;
 };
 
 &sysctrl {