linux-kernel - Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due disabled power domain

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Message-ID: <042e9067-7ef1-c942-0341-634963ff3fb0@osg.samsung.com>
Date:   Fri, 20 Jan 2017 07:46:29 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     Marek Szyprowski <m.szyprowski@...sung.com>,
        linux-kernel@...r.kernel.org
Cc:     Inki Dae <inki.dae@...sung.com>,
        Andi Shyti <andi.shyti@...sung.com>,
        Shuah Khan <shuahkh@....samsung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Kukjin Kim <kgene@...nel.org>,
        linux-samsung-soc@...r.kernel.org,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        linux-media@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH 2/2] [media] exynos-gsc: Fix imprecise external abort due
 disabled power domain

Hello,

On 01/20/2017 07:06 AM, Javier Martinez Canillas wrote:
> Hello Marek,
> 
> On 01/20/2017 05:37 AM, Marek Szyprowski wrote:
> 
> [snip]
>>
>> Please send this patch instead of adding more clocks to the power domains.
>> This way we will avoid adding more dependencies to userspace (DT ABI).
>> Likely those clocks are also needed to access any device in that power
>> domains.
>>
>> Later, once the runtime PM for clocks get merged, a patch for exynos542x
>> clocks driver can be made to replace IS_CRITICAL with proper runtime
>> handling.
>>
> 
> Ok, I thought that we didn't want to mark more clocks as CLK_IGNORE_UNUSED
> or CLK_IS_CRITICAL but I agree this can be done as a temporary workaround
> until a proper runtime PM based solution gets merged.
> 

I posted following patch [0] for clk-exynos5420, so $SUBJECT can be dropped.

[0]: https://patchwork.kernel.org/patch/9527957/

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America