linux-kernel - Re: [PATCH 24/25] drm: kirin: Pass driver data to crtc init and plane init

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Message-ID: <20190424170910.GC21067@ravnborg.org>
Date:   Wed, 24 Apr 2019 19:09:10 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     John Stultz <john.stultz@...aro.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Xu YiPing <xuyiping@...ilicon.com>,
        David Airlie <airlied@...ux.ie>,
        Chen Feng <puck.chen@...ilicon.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Xinliang Liu <z.liuxinliang@...ilicon.com>,
        Xinwei Kong <kong.kongxinwei@...ilicon.com>,
        Rongrong Zou <zourongrong@...il.com>
Subject: Re: [PATCH 24/25] drm: kirin: Pass driver data to crtc init and
 plane init

Hi John.

On Tue, Apr 23, 2019 at 04:20:55PM -0700, John Stultz wrote:
> From: Xu YiPing <xuyiping@...ilicon.com>
> 
> As part of refactoring the kirin driver to better support
> different hardware revisions, this patch changes funcitons
> to pass the kirin_driver_data as a prameter.
> 
> This will allow those funcitons to be later moved to the
> generic kirin_drm_drv.c
> 
> Cc: Xinliang Liu <z.liuxinliang@...ilicon.com>
> Cc: Rongrong Zou <zourongrong@...il.com>
> Cc: Xinwei Kong <kong.kongxinwei@...ilicon.com>
> Cc: Chen Feng <puck.chen@...ilicon.com>
> Cc: David Airlie <airlied@...ux.ie>
> Cc: Daniel Vetter <daniel@...ll.ch>
> Cc: dri-devel <dri-devel@...ts.freedesktop.org>
> Signed-off-by: Xu YiPing <xuyiping@...ilicon.com>
> [jstultz: Reworded commit message]
> Signed-off-by: John Stultz <john.stultz@...aro.org>
> ---
>  drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 25 ++++++++++++++-----------
>  1 file changed, 14 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> index 71671f8..876e25b 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> @@ -572,7 +572,8 @@ static const struct drm_crtc_funcs ade_crtc_funcs = {
>  };
>  
>  static int kirin_drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
> -			 struct drm_plane *plane)
> +				struct drm_plane *plane,
> +				const struct kirin_drm_data *driver_data)

Indent looks wrong here.

>  {
>  	struct device_node *port;
>  	int ret;
> @@ -589,13 +590,13 @@ static int kirin_drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
>  	crtc->port = port;
>  
>  	ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
> -					ade_driver_data.crtc_funcs, NULL);
> +					driver_data->crtc_funcs, NULL);
>  	if (ret) {
>  		DRM_ERROR("failed to init crtc.\n");
>  		return ret;
>  	}
>  
> -	drm_crtc_helper_add(crtc, ade_driver_data.crtc_helper_funcs);
> +	drm_crtc_helper_add(crtc, driver_data->crtc_helper_funcs);
>  
>  	return 0;
>  }


> @@ -894,21 +895,22 @@ static struct drm_plane_funcs ade_plane_funcs = {
>  
>  static int kirin_drm_plane_init(struct drm_device *dev,
>  				struct kirin_plane *kplane,
> -				enum drm_plane_type type)
> +				enum drm_plane_type type,
> +				const struct kirin_drm_data *driver_data)
>  {
>  	int ret = 0;
>  
>  	ret = drm_universal_plane_init(dev, &kplane->base, 1,
> +				driver_data->plane_funcs,
> +				driver_data->channel_formats,
> +				driver_data->channel_formats_cnt,
> +				NULL, type, NULL);
Indent looks wrong here.

I missed where ade_driver_data came from.
This looks an extra patch to intoduce driver_data,
that maybe should be merged with an earlier version?

	Sam