Re: [PATCH 1/2] ARM: dts: exynos: Add CLK_ACLK432_SCALER clock to gsc_pd for Exynos5800

From	Javier Martinez Canillas <javier@osg.samsung.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 1/2] ARM: dts: exynos: Add CLK_ACLK432_SCALER clock to gsc_pd for Exynos5800
Date	2017-01-20 11:30 +0100
Message-ID	<t1ECf-62Y-43@gated-at.bofh.it> (permalink)
References	<t1tGN-7wg-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hello,

On 01/19/2017 07:29 PM, Javier Martinez Canillas wrote:
> On Exynos5800 SoC the SCALER block uses 2 input clocks: CLK_ACLK_300_GSCL
> and CLK_ACLK432_SCALER, so both needs to be ungated in order to access it.
> 
> The SoC manual say the CLK_ACLK432_SCALER is needed to access the internal
> buses, so add this clock as another asynchronous bridges (ASB) clock.
> 
> The Exynos5420 only has the CLK_ACLK_300_GSCL clock defined. So just using
> this definition from exynos5420.dtsi in Exynos5800 leads to the following:
> 

Please ignore this patch as suggested by Marek. Instead I'll post a patch
to mark the clock as CLK_IS_CRITICAL, as a temporary workaround until a
proper runtime PM based solution gets merged.

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

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[PATCH 1/2] ARM: dts: exynos: Add CLK_ACLK432_SCALER clock to gsc_pd for Exynos5800 Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-19 23:50 +0100
  [PATCH 2/2] ARM: dts: exynos: Use correct mfc_pd async-bridge clock for Exynos5420 Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-19 23:50 +0100
    Re: [PATCH 2/2] ARM: dts: exynos: Use correct mfc_pd async-bridge  clock for Exynos5420 Krzysztof Kozlowski <krzk@kernel.org> - 2017-01-20 17:30 +0100
      Re: [PATCH 2/2] ARM: dts: exynos: Use correct mfc_pd async-bridge  clock for Exynos5420 Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-20 18:20 +0100
        Re: [PATCH 2/2] ARM: dts: exynos: Use correct mfc_pd async-bridge  clock for Exynos5420 Krzysztof Kozlowski <krzk@kernel.org> - 2017-01-20 18:40 +0100
  Re: [PATCH 1/2] ARM: dts: exynos: Add CLK_ACLK432_SCALER clock to  gsc_pd for Exynos5800 Javier Martinez Canillas <javier@osg.samsung.com> - 2017-01-20 11:30 +0100

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