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arm64: dts: amlogic: setup hdmi system clock

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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: 6939db7e0d ("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>
This commit is contained in:
Jerome Brunet 2024-06-26 17:27:31 +02:00 committed by Neil Armstrong
parent 0602ba0dcd
commit 1443b6ea80
3 changed files with 15 additions and 0 deletions
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5
arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
View File

@ -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>;

5
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
View File

@ -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 {

5
arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
View File

@ -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 {