linux-kernel - Re: [PATCH 1/6] ASoC: fsl_ssi: enable IPG clock during AC'97 reg access

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Message-ID: <CAOMZO5DJhCXr0oxY7q4TKs0AVS4nW6tDq4EHSGQHOZwf95YWWw@mail.gmail.com>
Date:	Thu, 30 Jul 2015 12:20:00 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	"Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
Cc:	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Timur Tabi <timur@...i.org>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	"linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/6] ASoC: fsl_ssi: enable IPG clock during AC'97 reg access

Hi Maciej,

On Thu, Jul 30, 2015 at 11:33 AM, Maciej S. Szmigiero
<mail@...iej.szmigiero.name> wrote:

>  static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
> @@ -1151,6 +1160,14 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
>         unsigned short val = -1;
>         u32 reg_val;
>         unsigned int lreg;
> +       int ret;
> +
> +       ret = clk_prepare_enable(fsl_ac97_data->clk);
> +       if (ret) {
> +               pr_err("ac97 read clk_prepare_enable failed: %d\n",
> +                       ret);
> +               return -1;

return ret, please.
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