Re: [PATCH V5 4/4] arm64: dts: meson: add S4 Soc Peripheral clock controller in DT

Neil Armstrong
2022-11-23T13:40:56Z

On 23/11/2022 11:10, Krzysztof Kozlowski wrote:
> On 23/11/2022 03:13, Yu Tu wrote:
>> Added information about the S4 SOC Peripheral Clock controller in DT.
>>
>> Signed-off-by: Yu Tu <yu.tu@amlogic.com>
>> ---
>> arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 26 +++++++++++++++++++++++
>> 1 file changed, 26 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
>> index bd9c2ef83314..e7fab6e400be 100644
>> --- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
>> +++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
>> @@ -6,6 +6,8 @@
>> #include <dt-bindings/interrupt-controller/irq.h>
>> #include <dt-bindings/interrupt-controller/arm-gic.h>
>> #include <dt-bindings/gpio/gpio.h>
>> +#include <dt-bindings/clock/amlogic,s4-pll-clkc.h>
>> +#include <dt-bindings/clock/amlogic,s4-peripherals-clkc.h>
>>
>> / {
>> cpus {
>> @@ -100,6 +102,30 @@ clkc_pll: clock-controller@8000 {
>> #clock-cells = <1>;
>> };
>>
>> + clkc_periphs: clock-controller {
>> + compatible = "amlogic,s4-peripherals-clkc";
>> + reg = <0x0 0x0 0x0 0x49c>;
>
> This is broken... did you check for warnings?

This is actually fine, the parent node has a ranges property:
https://github.com/torvalds/linux/blob/eb7081409f94a9a8608593d0fb63a1aa3d6f95d8/arch/arm64/boot/dts/amlogic/meson-s4.dtsi#L93

Neil

>
>
> Best regards,
> Krzysztof
>
>
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