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Re: [PATCH 09/20] drm: rcar-du: Rely on the default ->best_encoder() behavior

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On Thu, 02 Jun 2016 23:57:14 +0300
Laurent Pinchart <laurent.pinchart@ideasonboard.com> wrote:

> Hi Boris,
> 
> Thank you for the patch.
> 
> On Thursday 02 Jun 2016 16:31:36 Boris Brezillon wrote:
> > All outputs have a 1:1 relationship between connectors and encoders,
> > and the driver is relying on the atomic helpers: we can drop the custom  
> > ->best_encoder() implementations and let the core call  
> > drm_atomic_helper_best_encoder() for us.
> > 
> > Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> > ---
> >  drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 12 ------------
> >  drivers/gpu/drm/rcar-du/rcar_du_encoder.h |  3 ---
> >  drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c |  1 -
> >  drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c |  1 -
> >  drivers/gpu/drm/rcar-du/rcar_du_vgacon.c  |  1 -
> >  5 files changed, 18 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
> > b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 4e939e4..55149e9 100644
> > --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
> > +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c
> > @@ -27,18 +27,6 @@
> >  #include "rcar_du_vgacon.h"
> > 
> >  /*
> > ---------------------------------------------------------------------------
> > -- - * Common connector functions
> > - */
> > -
> > -struct drm_encoder *
> > -rcar_du_connector_best_encoder(struct drm_connector *connector)
> > -{
> > -	struct rcar_du_connector *rcon = to_rcar_connector(connector);
> > -
> > -	return rcar_encoder_to_drm_encoder(rcon->encoder);
> > -}
> > -
> > -/*
> > ---------------------------------------------------------------------------
> > -- * Encoder
> >   */
> > 
> > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h
> > b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h index 719b6f2a..a8669c3 100644
> > --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h
> > +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h
> > @@ -49,9 +49,6 @@ struct rcar_du_connector {
> >  #define to_rcar_connector(c) \
> >  	container_of(c, struct rcar_du_connector, connector)
> > 
> > -struct drm_encoder *
> > -rcar_du_connector_best_encoder(struct drm_connector *connector);
> > -
> >  int rcar_du_encoder_init(struct rcar_du_device *rcdu,
> >  			 enum rcar_du_encoder_type type,
> >  			 enum rcar_du_output output,
> > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
> > b/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c index 6c92714..612b4d5 100644
> > --- a/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
> > +++ b/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
> > @@ -52,7 +52,6 @@ static int rcar_du_hdmi_connector_mode_valid(struct
> > drm_connector *connector, static const struct drm_connector_helper_funcs
> > connector_helper_funcs = { .get_modes = rcar_du_hdmi_connector_get_modes,
> >  	.mode_valid = rcar_du_hdmi_connector_mode_valid,
> > -	.best_encoder = rcar_du_connector_best_encoder,
> >  };
> > 
> >  static enum drm_connector_status
> > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
> > b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c index e905f5d..6afd0af 100644
> > --- a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
> > +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c
> > @@ -59,7 +59,6 @@ static int rcar_du_lvds_connector_get_modes(struct
> > drm_connector *connector)
> > 
> >  static const struct drm_connector_helper_funcs connector_helper_funcs = {
> >  	.get_modes = rcar_du_lvds_connector_get_modes,
> > -	.best_encoder = rcar_du_connector_best_encoder,
> >  };
> > 
> >  static enum drm_connector_status
> > diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
> > b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c index 9d7e5c9..68f7ffa 100644
> > --- a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
> > +++ b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c
> > @@ -28,7 +28,6 @@ static int rcar_du_vga_connector_get_modes(struct
> > drm_connector *connector)
> > 
> >  static const struct drm_connector_helper_funcs connector_helper_funcs = {
> >  	.get_modes = rcar_du_vga_connector_get_modes,
> > -	.best_encoder = rcar_du_connector_best_encoder,
> >  };
> > 
> >  static enum drm_connector_status  
> 
> You can also remove
> 
>         rcon->encoder = renc;
> 
> from rcar_du_vga_connector_init(), it's not needed anymore. The same code in 
> rcar_du_hdmi_connector_init() has to stay for now though, as it's used to 
> locate the slave encoder in the HDMI support code. That should change when the 
> driver will be converted to use drm_bridge.
> 
> I can also fix this during the conversion to drm_bridge if you don't want to 
> resubmit. In any case,

There will be a v2 anyway, so I'll squash this change in the patch.

> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> 

Thanks,

Boris

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

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Thread

[PATCH 00/20] drm/atomic: Provide default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 18/20] drm/bridge: ptn3460: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 15/20] drm: virtgpu: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 10/20] drm: rockchip: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
    Re: [PATCH 10/20] drm: rockchip: Rely on the default ->best_encoder()  behavior Mark yao <mark.yao@rock-chips.com> - 2016-06-07 03:00 +0200
  [PATCH 03/20] drm: atmel-hlcdc: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 05/20] drm: fsl-dcu: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 19/20] drm/bridge: ps8622: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 13/20] drm: tegra: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 07/20] drm: mediatek: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 17/20] drm/bridge: anx78xx: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 09/20] drm: rcar-du: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
    Re: [PATCH 09/20] drm: rcar-du: Rely on the default ->best_encoder() behavior Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2016-06-02 23:00 +0200
      Re: [PATCH 09/20] drm: rcar-du: Rely on the default  ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-03 09:40 +0200
  [PATCH 14/20] drm: vc4: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 08/20] drm: msm: Rely on the default ->best_encoder() behavior where appropriate Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 04/20] drm: exynos: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 16/20] drm: omap: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
    Re: [PATCH 16/20] drm: omap: Rely on the default ->best_encoder() behavior Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2016-06-02 23:10 +0200
  [PATCH 12/20] drm: sun4i: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 02/20] drm: arc: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 20/20] drm/bridge: dw-hdmi: Use drm_atomic_helper_best_encoder() Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 06/20] drm: i915: Rely on the default ->best_encoder() behavior where appropriate Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
  [PATCH 01/20] drm/atomic: Fix remaining places where !funcs->best_encoder is valid Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200
    Re: [PATCH 01/20] drm/atomic: Fix remaining places where !funcs->best_encoder is valid Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2016-06-02 23:10 +0200
      Re: [PATCH 01/20] drm/atomic: Fix remaining places where  !funcs->best_encoder is valid Daniel Vetter <daniel@ffwll.ch> - 2016-06-03 00:00 +0200
        Re: [Intel-gfx] [PATCH 01/20] drm/atomic: Fix remaining places where  !funcs->best_encoder is valid Chris Wilson <chris@chris-wilson.co.uk> - 2016-06-03 00:50 +0200
        Re: [PATCH 01/20] drm/atomic: Fix remaining places where  !funcs->best_encoder is valid Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-03 09:40 +0200
          Re: [PATCH 01/20] drm/atomic: Fix remaining places where  !funcs->best_encoder is valid Daniel Vetter <daniel@ffwll.ch> - 2016-06-03 21:10 +0200
      Re: [PATCH 01/20] drm/atomic: Fix remaining places where  !funcs->best_encoder is valid Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-03 09:40 +0200
  [PATCH 11/20] drm: sti: Rely on the default ->best_encoder() behavior Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-02 16:40 +0200

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