linux-kernel - Re: [PATCH 2/3] soc: qcom: smd: Use __iowrite32

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Message-ID: <55E60ADB.8050704@codeaurora.org>
Date:	Tue, 1 Sep 2015 13:30:19 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Bjorn Andersson <bjorn.andersson@...ymobile.com>
Cc:	Andy Gross <agross@...eaurora.org>,
	"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>
Subject: Re: [PATCH 2/3] soc: qcom: smd: Use __iowrite32_copy() instead of
 open-coding it

On 09/01/2015 11:03 AM, Stephen Boyd wrote:
> On 08/31, Bjorn Andersson wrote:
>> On Mon 31 Aug 18:39 PDT 2015, Stephen Boyd wrote:
>>
>>> We already have a function to do this and it silences some sparse
>>> warnings along the way.
>>>
>> Didn't know that, thanks. Do you know why there's no equivalent for
>> transfers in the other direction? Should we hack one up to do the same
>> simplification in smd_copy_from_fifo()?
> Don't know. We can certainly write one although it would be nice
> if we had two users. I'll take a look.
>

Looks like we can convert smd and bcm47xx_nvram over. Also, we need to
add it or move the readl_relaxed() to a __raw_readl() in
smd_copy_from_fifo() because it's doing byte swapping that we don't want.

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

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