linux-kernel - Re: [PATCH 2/2] ASoC: rockchip: i2s: add support for grabbing output clock to codec

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Message-ID: <CAD=FV=Uwb1NxxCoXHzHu6DJCpnG_HV2RhCr3JaJaXbJja8kd7A@mail.gmail.com>
Date:	Tue, 2 Dec 2014 09:54:39 -0800
From:	Doug Anderson <dianders@...omium.org>
To:	Jianqun Xu <jay.xu@...k-chips.com>
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	"broonie@...nel.org" <broonie@...nel.org>, perex@...ex.cz,
	tiwai@...e.de, Sonny Rao <sonnyrao@...omium.org>,
	Heiko Stübner <heiko@...ech.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	alsa-devel@...a-project.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>
Subject: Re: [PATCH 2/2] ASoC: rockchip: i2s: add support for grabbing output
 clock to codec

Jianqun,

This ought to be a "v3" patch and ideally ought to describe
differences from v2 (after the cut).  Please have Kever or Chris
review your next patch before sending it out since I think they are
familiar with the process.


On Tue, Dec 2, 2014 at 6:52 AM, Jianqun Xu <jay.xu@...k-chips.com> wrote:
> From: Sonny Rao <sonnyrao@...omium.org>
>
> We need to claim the clock which is driving the codec so that when we enable
> clock gating, we continue to clock the codec when needed.  I make this an
> optional clock since there might be some applications where we don't need it
> but can still use the I2S block.
>
> Signed-off-by: Sonny Rao <sonnyrao@...omium.org>

You still forgot your own signed-off-by.  Please try again.  See
<https://patchwork.kernel.org/patch/5334991/>


> +       i2s->oclk = devm_clk_get(&pdev->dev, "i2s_clk_out");
> +       if (IS_ERR(i2s->oclk)) {
> +               dev_dbg(&pdev->dev, "Didn't find output clock\n");
> +               i2s->oclk = NULL;
> +       }

You still forgot the blank line here requested by Heiko.  Please try
again.  See <https://patchwork.kernel.org/patch/5334991/>


> +       if (i2s->oclk)
> +               ret = clk_prepare_enable(i2s->oclk);
> +
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