linux-kernel - Re: [PATCH v3 07/10] drm/bridge: analogix_dp: passing the connector as an argument in .get

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Date:	Tue, 14 Jun 2016 18:28:49 +0200
From:	Daniel Vetter <daniel@...ll.ch>
To:	Yakir Yang <ykk@...k-chips.com>, Mark Yao <yzq@...k-chips.com>,
	Inki Dae <inki.dae@...sung.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Javier Martinez Canillas <javier@....samsung.com>,
	Stéphane Marchesin <marcheu@...omium.org>,
	Tomasz Figa <tomasz.figa@...omium.com>,
	David Airlie <airlied@...ux.ie>,
	Thierry Reding <treding@...dia.com>, dianders@...omium.org,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	emil.l.velikov@...il.com, Dan Carpenter <dan.carpenter@...cle.com>,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linux-samsung-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v3 07/10] drm/bridge: analogix_dp: passing the connector
 as an argument in .get_modes()

On Tue, Jun 14, 2016 at 06:26:56PM +0200, Daniel Vetter wrote:
> On Tue, Jun 14, 2016 at 07:46:29PM +0800, Yakir Yang wrote:
> > It's better to pass the connector to platform driver in .get_modes()
> > callback, just like what the .get_modes() helper function designed.
> > 
> > Signed-off-by: Yakir Yang <ykk@...k-chips.com>
> 
> Also please drop the analogix prefix from the subject, this is for all
> drm_bridge drivers.

Ok, strike all my comments, I was blind and didn't realize that this was a
private interface for only rockchip/exynos.
-Daniel

> -Daniel
> 
> > ---
> > Changes in v3:
> > - Avoid to change any internal driver state in .mode_valid interface. (Tomasz, reviewed at Google Gerrit)
> >     [https://chromium-review.googlesource.com/#/c/346318/10/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c@113]
> > 
> > Changes in v2: None
> > 
> >  drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 2 +-
> >  drivers/gpu/drm/exynos/exynos_dp.c                 | 4 ++--
> >  include/drm/bridge/analogix_dp.h                   | 3 ++-
> >  3 files changed, 5 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > index 4a1b3b8..1a890fa 100644
> > --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> > @@ -938,7 +938,7 @@ int analogix_dp_get_modes(struct drm_connector *connector)
> >  		num_modes += drm_panel_get_modes(dp->plat_data->panel);
> >  
> >  	if (dp->plat_data->get_modes)
> > -		num_modes += dp->plat_data->get_modes(dp->plat_data);
> > +		num_modes += dp->plat_data->get_modes(dp->plat_data, connector);
> >  
> >  	return num_modes;
> >  }
> > diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c
> > index 468498e..8a555ed 100644
> > --- a/drivers/gpu/drm/exynos/exynos_dp.c
> > +++ b/drivers/gpu/drm/exynos/exynos_dp.c
> > @@ -67,10 +67,10 @@ static int exynos_dp_poweroff(struct analogix_dp_plat_data *plat_data)
> >  	return exynos_dp_crtc_clock_enable(plat_data, false);
> >  }
> >  
> > -static int exynos_dp_get_modes(struct analogix_dp_plat_data *plat_data)
> > +static int exynos_dp_get_modes(struct analogix_dp_plat_data *plat_data,
> > +			       struct drm_connector *connector)
> >  {
> >  	struct exynos_dp_device *dp = to_dp(plat_data);
> > -	struct drm_connector *connector = &dp->connector;
> >  	struct drm_display_mode *mode;
> >  	int num_modes = 0;
> >  
> > diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
> > index 82b8135..181db09 100644
> > --- a/include/drm/bridge/analogix_dp.h
> > +++ b/include/drm/bridge/analogix_dp.h
> > @@ -34,7 +34,8 @@ struct analogix_dp_plat_data {
> >  	int (*power_off)(struct analogix_dp_plat_data *);
> >  	int (*attach)(struct analogix_dp_plat_data *, struct drm_bridge *,
> >  		      struct drm_connector *);
> > -	int (*get_modes)(struct analogix_dp_plat_data *);
> > +	int (*get_modes)(struct analogix_dp_plat_data *,
> > +			 struct drm_connector *);
> >  };
> >  
> >  int analogix_dp_resume(struct device *dev);
> > -- 
> > 1.9.1
> > 
> > 
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch