Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Mon, 7 Oct 2019 12:45:51 -0400
From:   Sean Paul <sean@poorly.run>
To:     Derek Basehore <dbasehore@chromium.org>
Cc:     linux-kernel@vger.kernel.org,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <maxime.ripard@bootlin.com>,
        Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Thierry Reding <thierry.reding@gmail.com>,
        Sam Ravnborg <sam@ravnborg.org>,
        Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        CK Hu <ck.hu@mediatek.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org
Subject: Re: [PATCH v8 3/4] drm/connector: Split out orientation quirk
 detection
Message-ID: <20191007164551.GC126146@art_vandelay>
References: <20190925225833.7310-1-dbasehore@chromium.org>
 <20190925225833.7310-4-dbasehore@chromium.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20190925225833.7310-4-dbasehore@chromium.org>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Wed, Sep 25, 2019 at 03:58:32PM -0700, Derek Basehore wrote:
> Not every platform needs quirk detection for panel orientation, so
> split the drm_connector_init_panel_orientation_property into two
> functions. One for platforms without the need for quirks, and the
> other for platforms that need quirks.
> 
> Signed-off-by: Derek Basehore <dbasehore@chromium.org>
> Acked-by: Sam Ravnborg <sam@ravnborg.org>

Reviewed-by: Sean Paul <seanpaul@chromium.org>

> ---
>  drivers/gpu/drm/drm_connector.c         | 45 ++++++++++++++++++-------
>  drivers/gpu/drm/i915/display/icl_dsi.c  |  2 +-
>  drivers/gpu/drm/i915/display/intel_dp.c |  4 +--
>  drivers/gpu/drm/i915/display/vlv_dsi.c  |  2 +-
>  include/drm/drm_connector.h             |  2 ++
>  5 files changed, 39 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index 4c766624b20d..faef25683faf 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -1989,31 +1989,23 @@ EXPORT_SYMBOL(drm_connector_set_vrr_capable_property);
>   * drm_connector_init_panel_orientation_property -
>   *	initialize the connecters panel_orientation property
>   * @connector: connector for which to init the panel-orientation property.
> - * @width: width in pixels of the panel, used for panel quirk detection
> - * @height: height in pixels of the panel, used for panel quirk detection
>   *
>   * This function should only be called for built-in panels, after setting
>   * connector->display_info.panel_orientation first (if known).
>   *
> - * This function will check for platform specific (e.g. DMI based) quirks
> - * overriding display_info.panel_orientation first, then if panel_orientation
> - * is not DRM_MODE_PANEL_ORIENTATION_UNKNOWN it will attach the
> - * "panel orientation" property to the connector.
> + * This function will check if the panel_orientation is not
> + * DRM_MODE_PANEL_ORIENTATION_UNKNOWN. If not, it will attach the "panel
> + * orientation" property to the connector.
>   *
>   * Returns:
>   * Zero on success, negative errno on failure.
>   */
>  int drm_connector_init_panel_orientation_property(
> -	struct drm_connector *connector, int width, int height)
> +	struct drm_connector *connector)
>  {
>  	struct drm_device *dev = connector->dev;
>  	struct drm_display_info *info = &connector->display_info;
>  	struct drm_property *prop;
> -	int orientation_quirk;
> -
> -	orientation_quirk = drm_get_panel_orientation_quirk(width, height);
> -	if (orientation_quirk != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
> -		info->panel_orientation = orientation_quirk;
>  
>  	if (info->panel_orientation == DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
>  		return 0;
> @@ -2036,6 +2028,35 @@ int drm_connector_init_panel_orientation_property(
>  }
>  EXPORT_SYMBOL(drm_connector_init_panel_orientation_property);
>  
> +/**
> + * drm_connector_init_panel_orientation_property_quirk -
> + *	initialize the connecters panel_orientation property with a quirk
> + *	override
> + * @connector: connector for which to init the panel-orientation property.
> + * @width: width in pixels of the panel, used for panel quirk detection
> + * @height: height in pixels of the panel, used for panel quirk detection
> + *
> + * This function will check for platform specific (e.g. DMI based) quirks
> + * overriding display_info.panel_orientation first, then if panel_orientation
> + * is not DRM_MODE_PANEL_ORIENTATION_UNKNOWN it will attach the
> + * "panel orientation" property to the connector.
> + *
> + * Returns:
> + * Zero on success, negative errno on failure.
> + */
> +int drm_connector_init_panel_orientation_property_quirk(
> +	struct drm_connector *connector, int width, int height)
> +{
> +	int orientation_quirk;
> +
> +	orientation_quirk = drm_get_panel_orientation_quirk(width, height);
> +	if (orientation_quirk != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
> +		connector->display_info.panel_orientation = orientation_quirk;
> +
> +	return drm_connector_init_panel_orientation_property(connector);
> +}
> +EXPORT_SYMBOL(drm_connector_init_panel_orientation_property_quirk);
> +
>  int drm_connector_set_obj_prop(struct drm_mode_object *obj,
>  				    struct drm_property *property,
>  				    uint64_t value)
> diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
> index 6e398c33a524..483287984090 100644
> --- a/drivers/gpu/drm/i915/display/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/display/icl_dsi.c
> @@ -1538,7 +1538,7 @@ static void icl_dsi_add_properties(struct intel_connector *connector)
>  
>  	connector->base.display_info.panel_orientation =
>  			intel_dsi_get_panel_orientation(connector);
> -	drm_connector_init_panel_orientation_property(&connector->base,
> +	drm_connector_init_panel_orientation_property_quirk(&connector->base,
>  				connector->panel.fixed_mode->hdisplay,
>  				connector->panel.fixed_mode->vdisplay);
>  }
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 921ad0a2f7ba..419413fa8165 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -7076,8 +7076,8 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
>  	intel_panel_setup_backlight(connector, pipe);
>  
>  	if (fixed_mode)
> -		drm_connector_init_panel_orientation_property(
> -			connector, fixed_mode->hdisplay, fixed_mode->vdisplay);
> +		drm_connector_init_panel_orientation_property_quirk(connector,
> +				fixed_mode->hdisplay, fixed_mode->vdisplay);
>  
>  	return true;
>  
> diff --git a/drivers/gpu/drm/i915/display/vlv_dsi.c b/drivers/gpu/drm/i915/display/vlv_dsi.c
> index a71b22bdd95b..46cfb0821c17 100644
> --- a/drivers/gpu/drm/i915/display/vlv_dsi.c
> +++ b/drivers/gpu/drm/i915/display/vlv_dsi.c
> @@ -1634,7 +1634,7 @@ static void vlv_dsi_add_properties(struct intel_connector *connector)
>  
>  		connector->base.display_info.panel_orientation =
>  			vlv_dsi_get_panel_orientation(connector);
> -		drm_connector_init_panel_orientation_property(
> +		drm_connector_init_panel_orientation_property_quirk(
>  				&connector->base,
>  				connector->panel.fixed_mode->hdisplay,
>  				connector->panel.fixed_mode->vdisplay);
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 681cb590f952..e3416ac11478 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1540,6 +1540,8 @@ void drm_connector_set_link_status_property(struct drm_connector *connector,
>  void drm_connector_set_vrr_capable_property(
>  		struct drm_connector *connector, bool capable);
>  int drm_connector_init_panel_orientation_property(
> +	struct drm_connector *connector);
> +int drm_connector_init_panel_orientation_property_quirk(
>  	struct drm_connector *connector, int width, int height);
>  int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
>  					  int min, int max);
> -- 
> 2.23.0.351.gc4317032e6-goog
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS