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SubjectRe: [PATCH v3 4/6] arm64: dts: hisilicon: Fix SP805 clocks
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Hi Andre,

On 2020/9/7 20:18, Andre Przywara wrote:
> The SP805 DT binding requires two clocks to be specified, but
> Hisilicon platform DTs currently only specify one clock.
>
> In practice, Linux would pick a clock named "apb_pclk" for the bus
> clock, and the Linux and U-Boot SP805 driver would use the first clock
> to derive the actual watchdog counter frequency.
>
> Since currently both are the very same clock, we can just double the
> clock reference, and add the correct clock-names, to match the binding.
>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>

Thanks!
Applied to the hisilicon arm64 dt tree.

Best Regards,
Wei

> ---
> arch/arm64/boot/dts/hisilicon/hi3660.dtsi | 10 ++++++----
> arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 5 +++--
> 2 files changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> index d25aac5e0bf8..994140fbc916 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
> @@ -1089,16 +1089,18 @@
> compatible = "arm,sp805-wdt", "arm,primecell";
> reg = <0x0 0xe8a06000 0x0 0x1000>;
> interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&crg_ctrl HI3660_OSC32K>;
> - clock-names = "apb_pclk";
> + clocks = <&crg_ctrl HI3660_OSC32K>,
> + <&crg_ctrl HI3660_OSC32K>;
> + clock-names = "wdog_clk", "apb_pclk";
> };
>
> watchdog1: watchdog@e8a07000 {
> compatible = "arm,sp805-wdt", "arm,primecell";
> reg = <0x0 0xe8a07000 0x0 0x1000>;
> interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&crg_ctrl HI3660_OSC32K>;
> - clock-names = "apb_pclk";
> + clocks = <&crg_ctrl HI3660_OSC32K>,
> + <&crg_ctrl HI3660_OSC32K>;
> + clock-names = "wdog_clk", "apb_pclk";
> };
>
> tsensor: tsensor@fff30000 {
> diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> index 3d189d9f0d24..6578f8191d71 100644
> --- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
> @@ -843,8 +843,9 @@
> compatible = "arm,sp805-wdt", "arm,primecell";
> reg = <0x0 0xf8005000 0x0 0x1000>;
> interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
> - clocks = <&ao_ctrl HI6220_WDT0_PCLK>;
> - clock-names = "apb_pclk";
> + clocks = <&ao_ctrl HI6220_WDT0_PCLK>,
> + <&ao_ctrl HI6220_WDT0_PCLK>;
> + clock-names = "wdog_clk", "apb_pclk";
> };
>
> tsensor: tsensor@0,f7030700 {
>

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