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Date: Fri, 6 May 2016 09:44:29 -0400 From: Javier Martinez Canillas <javier@....samsung.com> To: Krzysztof Kozlowski <k.kozlowski@...sung.com> Cc: linux-kernel@...r.kernel.org, Russell King <linux@....linux.org.uk>, Kukjin Kim <kgene@...nel.org>, devicetree@...r.kernel.org, Kumar Gala <galak@...eaurora.org>, Ian Campbell <ijc+devicetree@...lion.org.uk>, linux-samsung-soc@...r.kernel.org, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH] ARM: dts: exynos: Add MFC memory banks for Peach boards Hello Krzysztof, On 04/28/2016 03:21 PM, Javier Martinez Canillas wrote: > The MFC nodes with the memory regions reserved for memory allocations > are missing in the Exynos5420 Peach Pit and Exynos5800 Peach Pi DTS. > > This causes the s5p-mfc driver probe to fail with the following error: > > [ 4.140647] s5p_mfc_alloc_memdevs:1072: Failed to declare coherent memory for MFC device > [ 4.216163] s5p-mfc: probe of 11000000.codec failed with error -12 > > Add the missing nodes so the driver probes and the {en,de}coder video > nodes are registered correctly: > > [ 4.096277] s5p-mfc 11000000.codec: decoder registered as /dev/video4 > [ 4.102282] s5p-mfc 11000000.codec: encoder registered as /dev/video5 > > Signed-off-by: Javier Martinez Canillas <javier@....samsung.com> > > --- > > arch/arm/boot/dts/exynos5420-peach-pit.dts | 5 +++++ > arch/arm/boot/dts/exynos5800-peach-pi.dts | 5 +++++ > 2 files changed, 10 insertions(+) > > diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts > index b644858231b6..f9d2e4f1a0e0 100644 > --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts > +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts > @@ -694,6 +694,11 @@ > status = "okay"; > }; > > +&mfc { > + samsung,mfc-r = <0x43000000 0x800000>; > + samsung,mfc-l = <0x51000000 0x800000>; > +}; > + > &mmc_0 { > status = "okay"; > num-slots = <1>; > diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts > index 6ba9aec15485..62ceb89e073f 100644 > --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts > +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts > @@ -669,6 +669,11 @@ > status = "okay"; > }; > > +&mfc { > + samsung,mfc-r = <0x43000000 0x800000>; > + samsung,mfc-l = <0x51000000 0x800000>; > +}; > + > &mmc_0 { > status = "okay"; > num-slots = <1>; > Any comments about this patch? Best regards, -- Javier Martinez Canillas Open Source Group Samsung Research America
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