Re: [PATCH 1/2] ARM: dts: exynos: Add CLK_ACLK432_SCALER clock to gsc_pd for Exynos5800
From: Javier Martinez Canillas
Date: Fri Jan 20 2017 - 05:22:12 EST
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