linux-kernel - Re: [PATCH 2/2] pinmux: add a driver for the U300 pinmux

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Date:	Mon, 10 Oct 2011 10:17:01 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Barry Song <21cnbao@...il.com>
Cc:	Linus Walleij <linus.walleij@...ricsson.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Stephen Warren <swarren@...dia.com>,
	Lee Jones <lee.jones@...aro.org>,
	Joe Perches <joe@...ches.com>,
	Russell King <linux@....linux.org.uk>,
	Linaro Dev <linaro-dev@...ts.linaro.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	David Brown <davidb@...eaurora.org>
Subject: Re: [PATCH 2/2] pinmux: add a driver for the U300 pinmux

On Sat, Oct 8, 2011 at 11:09 AM, Barry Song <21cnbao@...il.com> wrote:
>> +static void __init u300_pmx_dumpregs(struct u300_pmx *upmx)
>> +{
>> +       u16 regval;
>> +       int i;
>> +
>> +       for (i = 0; i < ARRAY_SIZE(u300_pmx_registers); i++) {
>> +               regval = readw(upmx->virtbase + u300_pmx_registers[i]);
>> +               dev_info(upmx->dev, "PMX%u: 0x%04x\n", i, regval);
>> +       }
>> +}
>
> is this a debug information or do you want it to be in mainline?

Debug info, I'll delete it. Not that it hurt, but I'll kill it.

>> +       /* Create state holders etc for this driver */
>> +       upmx = devm_kzalloc(&pdev->dev, sizeof(struct u300_pmx), GFP_KERNEL);
>
> and this would be "devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL); " ?

Same semantic effect, but if you prefer it that way, sure :-)

I've seen both used in the kernel before...

Can I have your Reviewed-by: tag after this?

Linus Walleij
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