Date:	Wed, 8 Jun 2016 15:39:03 +0530
From:	Archit Taneja <architt@...eaurora.org>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	David Airlie <airlied@...ux.ie>,
	Daniel Vetter <daniel@...ll.ch>,
	dri-devel@...ts.freedesktop.org,
	Daniel Vetter <daniel.vetter@...el.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	linux-samsung-soc@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	Alexey Brodkin <abrodkin@...opsys.com>,
	Inki Dae <inki.dae@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Stefan Agner <stefan@...er.ch>,
	Alison Wang <alison.wang@...escale.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Rob Clark <robdclark@...il.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Mark Yao <mark.yao@...k-chips.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Benjamin Gaignard <benjamin.gaignard@...aro.org>,
	Vincent Abriou <vincent.abriou@...com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Chen-Yu Tsai <wens@...e.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Eric Anholt <eric@...olt.net>,
	Gerd Hoffmann <kraxel@...hat.com>,
	linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
	freedreno@...ts.freedesktop.org, linux-renesas-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org, linux-tegra@...r.kernel.org,
	virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v2 08/20] drm: msm: Rely on the default ->best_encoder()
 behavior where appropriate

Hi,

On 06/07/2016 05:18 PM, Boris Brezillon wrote:
> For all outputs except DSI we 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() and let the core call
> drm_atomic_helper_best_encoder() for us.

Works fine with msm.

Tested-by: Archit Taneja <architt@...eaurora.org>

Thanks,
Archit

>
> Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
> ---
>   drivers/gpu/drm/msm/edp/edp_connector.c            | 10 ----------
>   drivers/gpu/drm/msm/hdmi/hdmi_connector.c          |  8 --------
>   drivers/gpu/drm/msm/mdp/mdp4/mdp4_lvds_connector.c |  9 ---------
>   3 files changed, 27 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/edp/edp_connector.c b/drivers/gpu/drm/msm/edp/edp_connector.c
> index 72360cd..5960628 100644
> --- a/drivers/gpu/drm/msm/edp/edp_connector.c
> +++ b/drivers/gpu/drm/msm/edp/edp_connector.c
> @@ -91,15 +91,6 @@ static int edp_connector_mode_valid(struct drm_connector *connector,
>   	return MODE_OK;
>   }
>
> -static struct drm_encoder *
> -edp_connector_best_encoder(struct drm_connector *connector)
> -{
> -	struct edp_connector *edp_connector = to_edp_connector(connector);
> -
> -	DBG("");
> -	return edp_connector->edp->encoder;
> -}
> -
>   static const struct drm_connector_funcs edp_connector_funcs = {
>   	.dpms = drm_atomic_helper_connector_dpms,
>   	.detect = edp_connector_detect,
> @@ -113,7 +104,6 @@ static const struct drm_connector_funcs edp_connector_funcs = {
>   static const struct drm_connector_helper_funcs edp_connector_helper_funcs = {
>   	.get_modes = edp_connector_get_modes,
>   	.mode_valid = edp_connector_mode_valid,
> -	.best_encoder = edp_connector_best_encoder,
>   };
>
>   /* initialize connector */
> diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
> index b15d726..a2515b4 100644
> --- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
> +++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c
> @@ -406,13 +406,6 @@ static int msm_hdmi_connector_mode_valid(struct drm_connector *connector,
>   	return 0;
>   }
>
> -static struct drm_encoder *
> -msm_hdmi_connector_best_encoder(struct drm_connector *connector)
> -{
> -	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
> -	return hdmi_connector->hdmi->encoder;
> -}
> -
>   static const struct drm_connector_funcs hdmi_connector_funcs = {
>   	.dpms = drm_atomic_helper_connector_dpms,
>   	.detect = hdmi_connector_detect,
> @@ -426,7 +419,6 @@ static const struct drm_connector_funcs hdmi_connector_funcs = {
>   static const struct drm_connector_helper_funcs msm_hdmi_connector_helper_funcs = {
>   	.get_modes = msm_hdmi_connector_get_modes,
>   	.mode_valid = msm_hdmi_connector_mode_valid,
> -	.best_encoder = msm_hdmi_connector_best_encoder,
>   };
>
>   /* initialize connector */
> diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lvds_connector.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lvds_connector.c
> index 2648cd7..353429b 100644
> --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lvds_connector.c
> +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_lvds_connector.c
> @@ -90,14 +90,6 @@ static int mdp4_lvds_connector_mode_valid(struct drm_connector *connector,
>   	return MODE_OK;
>   }
>
> -static struct drm_encoder *
> -mdp4_lvds_connector_best_encoder(struct drm_connector *connector)
> -{
> -	struct mdp4_lvds_connector *mdp4_lvds_connector =
> -			to_mdp4_lvds_connector(connector);
> -	return mdp4_lvds_connector->encoder;
> -}
> -
>   static const struct drm_connector_funcs mdp4_lvds_connector_funcs = {
>   	.dpms = drm_atomic_helper_connector_dpms,
>   	.detect = mdp4_lvds_connector_detect,
> @@ -111,7 +103,6 @@ static const struct drm_connector_funcs mdp4_lvds_connector_funcs = {
>   static const struct drm_connector_helper_funcs mdp4_lvds_connector_helper_funcs = {
>   	.get_modes = mdp4_lvds_connector_get_modes,
>   	.mode_valid = mdp4_lvds_connector_mode_valid,
> -	.best_encoder = mdp4_lvds_connector_best_encoder,
>   };
>
>   /* initialize connector */
>

-- 
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