[PATCH 2/2] arm64: dts: amlogic: setup hdmi system clock

[Jerome Brunet]

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 at baylibre.com>
---
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 5 +++++
 arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi       | 5 +++++
 arch/arm64/boot/dts/amlogic/meson-gxl.dtsi        | 5 +++++
 3 files changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 354f3c722b04..0c425af3174d 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 @@ hdmi_tx: hdmi-tx at 0 {
 				#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 at 0 {
 					reg = <0>;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 041c37b809f2..ed00e67e6923 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -316,6 +316,11 @@ &hdmi_tx {
 		 <&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 067108800a58..f58d1790de1c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -328,6 +328,11 @@ &hdmi_tx {
 		 <&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 {
-- 
2.43.0