linux-kernel - Re: [PATCH v2 04/12] drm: rockchip/dw_hdmi

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Date:	Sat, 31 Jan 2015 11:13:51 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Yakir Yang <ykk@...k-chips.com>
Cc:	David Airlie <airlied@...ux.ie>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	Rob Clark <robdclark@...il.com>,
	Mark Yao <mark.yao@...k-chips.com>,
	Daniel Vetter <daniel@...ll.ch>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	djkurtz@...omium.org, dbehr@...omoum.org, mmind00@...glemail.com,
	dianders@...omium.org, marcheu@...omium.org,
	rockchip-discuss@...omium.org
Subject: Re: [PATCH v2 04/12] drm: rockchip/dw_hdmi_rockchip: add
 resume/suspend support

On Fri, Jan 30, 2015 at 06:28:59AM -0500, Yakir Yang wrote:
> Signed-off-by: Yakir Yang <ykk@...k-chips.com>
> ---
> Changes in v2:
> - Add suspend/resume support for dw_hdmi_rockchip driver
> 
>  drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> index d236faa..2f8bacb 100644
> --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> @@ -323,9 +323,22 @@ static int dw_hdmi_rockchip_remove(struct platform_device *pdev)
>  	return 0;
>  }
>  
> +static int dw_hdmi_rockchip_suspend(struct platform_device *pdev,
> +				    pm_message_t state)
> +{
> +	return dw_hdmi_suspend(pdev, state);
> +}
> +
> +static int dw_hdmi_rockchip_resume(struct platform_device *pdev)
> +{
> +	return dw_hdmi_resume(pdev);
> +}
> +
>  static struct platform_driver dw_hdmi_rockchip_pltfm_driver = {
>  	.probe  = dw_hdmi_rockchip_probe,
>  	.remove = dw_hdmi_rockchip_remove,
> +	.resume = dw_hdmi_rockchip_resume,
> +	.suspend = dw_hdmi_rockchip_suspend,
>  	.driver = {
>  		.name = "dwhdmi-rockchip",
>  		.of_match_table = dw_hdmi_rockchip_dt_ids,

Using the power management operations (setting the .pm member in
the embedded struct device_driver) is preferred over using the
.resume and .suspend methods.

Please update this patch to use the preferred method.  Thanks.

-- 
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