linux-kernel - Re: [PATCH] mmc: sdhci-msm: Make tuning block table endian agnostic

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Message-ID: <20140903133742.GB28256@codeaurora.org>
Date:	Wed, 3 Sep 2014 06:37:42 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	Chris Ball <chris@...ntf.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Asutosh Das <asutoshd@...eaurora.org>,
	Venkat Gopalakrishnan <venkatg@...eaurora.org>,
	Georgi Djakov <gdjakov@...sol.com>
Subject: Re: [PATCH] mmc: sdhci-msm: Make tuning block table endian agnostic

On 09/03, Ulf Hansson wrote:
> On 3 September 2014 01:58, Stephen Boyd <sboyd@...eaurora.org> wrote:
> > If we're tuning on a big-endian CPU we'll never determine we properly
> > tuned the device because we compare the data we received from the
> > controller with a table that assumes the CPU is little-endian.
> > Change the table to be an array of bytes instead of 32-bit words
> > so we can use memcmp() without needing to byte-swap every word
> > depending on the endianess of the CPU.
> >
> > Cc: Asutosh Das <asutoshd@...eaurora.org>
> > Cc: Venkat Gopalakrishnan <venkatg@...eaurora.org>
> > Cc: Georgi Djakov <gdjakov@...sol.com>
> > Fixes: 415b5a75da43 "mmc: sdhci-msm: Add platform_execute_tuning implementation"
> > Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
> 
> Hi Stephen,
> 
> If you want me to pick this up, please repost to linux-mmc as well.
> Otherwise you have my ack for it!
> 

Ok I'll repost it now.

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