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SubjectRe: [PATCH v4 1/6] Documentation: DT: Consolidate SP805 binding docs
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On 06/05/2018 12:41 PM, Rob Herring wrote:
> On Mon, May 28, 2018 at 11:01:32AM -0700, Ray Jui wrote:
>> Consolidate two SP805 binding documents "arm,sp805.txt" and
>> "sp805-wdt.txt" into "arm,sp805.txt" that matches the naming of the
>> desired compatible string to be used
>>
>> Signed-off-by: Ray Jui <ray.jui@broadcom.com>
>> ---
>> .../devicetree/bindings/watchdog/arm,sp805.txt | 27 ++++++++++++++-----
>> .../devicetree/bindings/watchdog/sp805-wdt.txt | 31 ----------------------
>> 2 files changed, 20 insertions(+), 38 deletions(-)
>> delete mode 100644 Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
>
> Would be good to get a ACK from FSL/NXP person on this. It looks to me
> like the driver fetches the wrong clock as it gets the first one and the
> driver really wants 'wdog_clk'. In any case, their dts files should be
> updated.
>

This is really confusing, since he deleted file lists apb_pclk first.
Does the watchdog driver need apb_pclk or wdog_clk ? That isn't clear to me.
arch/arm64/boot/dts/hisilicon/hi3660.dtsi only provides apb_pclk, or at least
it says so. The fsl dts files all have apb_pclk first.

Either case, why are two clocks asked for in the first place ? Are there
situations where the second clock is actually used/useful ?

Guenter

> Reviewed-by: Rob Herring <robh@kernel.org>
>
> Rob
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