linux-kernel - Re: [PATCH 2/2] misc: sram: switch to ioremap

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Date:	Tue, 06 Jan 2015 17:54:39 +0100
From:	Philipp Zabel <p.zabel@...gutronix.de>
To:	Abhilash Kesavan <kesavan.abhilash@...il.com>
Cc:	Tony Lindgren <tony@...mide.com>,
	linux-rockchip@...ts.infradead.org,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <Will.Deacon@....com>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	"heiko@...ech.de" <heiko@...ech.de>,
	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>,
	"shc_work@...l.ru" <shc_work@...l.ru>,
	"nicoleotsuka@...il.com" <nicoleotsuka@...il.com>,
	"arnd@...db.de" <arnd@...db.de>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"corbet@....net" <corbet@....net>,
	"padma.v@...sung.com" <padma.v@...sung.com>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	"shawn.guo@...escale.com" <shawn.guo@...escale.com>,
	"bcousson@...libre.com" <bcousson@...libre.com>,
	"kernel@...gutronix.de" <kernel@...gutronix.de>,
	"kgene@...nel.org" <kgene@...nel.org>,
	Pawel Moll <Pawel.Moll@....com>
Subject: Re: [PATCH 2/2] misc: sram: switch to ioremap_wc from ioremap

Hi Abhilash,

Am Dienstag, den 06.01.2015, 19:57 +0530 schrieb Abhilash Kesavan:
> >> From the existing dts files, omap, imx, rockchip and exynos seem to be
> >> the only users of the sram allocator code. I have tested this on
> >> Exynos5420, Exynos5800 and Exynos7; there is no change in behavior
> >> seen on these boards. Tested-by for other SoCs would be appreciated.
> >
> > Sorry for the delay, these seems to boot OK on omap4, so from that
> > point of view:
> >
> > Tested-by: Tony Lindgren <tony@...mide.com>
> 
> Thanks a lot for testing this. If someone with imx and rockchip boards
> could help test this out, then we could look to get this in.

This shouldn't be a problem on i.MX, the coda driver doesn't access SRAM
from the CPU at all.

regards
Philipp

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