From: Javier Martinez Canillas <javier@osg.samsung.com>
To: linux-kernel@vger.kernel.org
Cc: Inki Dae <inki.dae@samsung.com>,
Andi Shyti <andi.shyti@samsung.com>,
Shuah Khan <shuahkh@osg.samsung.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Andrzej Hajda <a.hajda@samsung.com>,
devicetree@vger.kernel.org, Kukjin Kim <kgene@kernel.org>,
Russell King <linux@armlinux.org.uk>,
linux-samsung-soc@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/2] ARM: dts: exynos: Add CLK_ACLK432_SCALER clock to gsc_pd for Exynos5800
Date: Fri, 20 Jan 2017 07:11:04 -0300 [thread overview]
Message-ID: <1a244e36-a965-3efb-4413-b40e8c549cf9@osg.samsung.com> (raw)
In-Reply-To: <1484864995-10679-1-git-send-email-javier@osg.samsung.com>
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
prev parent reply other threads:[~2017-01-20 10:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-19 22:29 [PATCH 1/2] ARM: dts: exynos: Add CLK_ACLK432_SCALER clock to gsc_pd for Exynos5800 Javier Martinez Canillas
2017-01-19 22:29 ` [PATCH 2/2] ARM: dts: exynos: Use correct mfc_pd async-bridge clock for Exynos5420 Javier Martinez Canillas
2017-01-20 16:28 ` Krzysztof Kozlowski
2017-01-20 17:15 ` Javier Martinez Canillas
2017-01-20 17:32 ` Krzysztof Kozlowski
2017-01-20 10:11 ` Javier Martinez Canillas [this message]
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