linux-kernel - Re: [PATCH 2/2] sata highbank: add bit-banged SGPIO driver support

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Date:	Wed, 5 Jun 2013 16:15:17 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Mark Langsdorf <mark.langsdorf@...xeda.com>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	grant.likely@...aro.org, rob.herring@...xeda.com,
	devicetree-discuss@...ts.ozlabs.org
Subject: Re: [PATCH 2/2] sata highbank: add bit-banged SGPIO driver support

Hello,

On Wed, Jun 05, 2013 at 05:31:48PM -0500, Mark Langsdorf wrote:
> +static void ecx_parse_sgpio(struct ecx_plat_data *pdata, u32 port, u32 state)
> +{
> +	if (state & ECX_ACTIVITY_BITS)
> +		pdata->sgpio_pattern |= sgpio_bit_shift(pdata, port,
> +						ECX_ACTIVITY_SHIFT);
> +	else
> +		pdata->sgpio_pattern &= sgpio_bit_shift(pdata, port,
> +						ECX_ACTIVITY_SHIFT);

Shouldn't it be "&= ~" instead of "&="?  You're trying to turn the bit
off, right?

Looks okay to me otherwise.

Thanks.

-- 
tejun
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