Re: [PATCH v2 3/8] ARM: dts: exynos: Fix watchdog reset on Exynos4412

From	Krzysztof Kozlowski <krzk@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 3/8] ARM: dts: exynos: Fix watchdog reset on Exynos4412
Date	2017-03-13 07:50 +0100
Message-ID	<tkrXP-4X5-13@gated-at.bofh.it> (permalink)
References	<tjT05-5YC-3@gated-at.bofh.it> <tjT06-5YC-5@gated-at.bofh.it> <tkiBc-6FF-19@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Sun, Mar 12, 2017 at 10:48 PM, Guenter Roeck <linux@roeck-us.net> wrote:
> On 03/11/2017 09:25 AM, Krzysztof Kozlowski wrote:
>>
>> The Exynos4412 has the same watchdog as newer SoCs (e.g. Exynos5250).
>> Just like the others, for working it requires additional steps in Power
>> Management Unit: unmasking the reset request and enabling the system
>> reset.  Without these additional steps in PMU, the watchdog will not be
>> able to reset the system on expiration event.
>>
>> Change the compatible of Exynos4412 watchdog device node to
>> samsung,exynos5250-wdt which includes the additional PMU steps.
>>
>> This will also fix infinite watchdog interrupt in soft mode (lack of
>> interrupt clear) because it is also included in samsung,exynos5250-wdt.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
>
>
> Acked-by: Guenter Roeck <linux@roeck-us.net>
>
> I assume this patch will be pushed through some arm tree.

Yes, I will take it through samsung-soc.

Best regards,
Krzysztof

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH v2 3/8] ARM: dts: exynos: Fix watchdog reset on Exynos4412 Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-11 18:30 +0100
  Re: [PATCH v2 3/8] ARM: dts: exynos: Fix watchdog reset on Exynos4412 Guenter Roeck <linux@roeck-us.net> - 2017-03-12 21:50 +0100
    Re: [PATCH v2 3/8] ARM: dts: exynos: Fix watchdog reset on Exynos4412 Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-13 07:50 +0100

csiph-web