linux-kernel - Re: [PATCH 06/14] ASoC: Add sun8i digital audio codec

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 4 Oct 2016 18:09:54 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:     Mylène Josserand 
        <mylene.josserand@...e-electrons.com>, vinod.koul@...el.com,
        wens@...e.org, mturquette@...libre.com, sboyd@...eaurora.org,
        lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, lee.jones@...aro.org, mark.rutland@....com,
        robh+dt@...nel.org, linux-kernel@...r.kernel.org,
        dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-sunxi@...glegroups.com,
        alexandre.belloni@...e-electrons.com
Subject: Re: [PATCH 06/14] ASoC: Add sun8i digital audio codec

Hi,

On Tue, Oct 04, 2016 at 02:40:08PM +0200, Thomas Petazzoni wrote:
> > +	scodec->clk_apb = devm_clk_get(&pdev->dev, "apb");
> > +	if (IS_ERR(scodec->clk_apb)) {
> > +		dev_err(&pdev->dev, "Failed to get the apb clock\n");
> > +		return PTR_ERR(scodec->clk_apb);
> > +	}
> > +	if (clk_prepare_enable(scodec->clk_apb))
> > +		pr_err("err:open failed;\n");
> 
> Ditto. + unprepare/disable the previous clock.

Ideally, that would be even not be part of the runtime_pm
hooks. Ideally, that would be great if that driver supports it.

We'll have to go through all the drivers to support it, that would be
one less to do (and ASoC makes it very easy, you can have a look at
the sun4i-i2s driver).

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)