Re: [PATCH 4/5] drm/connector: Split out orientation quirk detection

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On Mon, 10 Jun 2019, Derek Basehore <dbasehore@xxxxxxxxxxxx> wrote:
> This removes the orientation quirk detection from the code to add
> an orientation property to a panel. This is used only for legacy x86
> systems, yet we'd like to start using this on devicetree systems where
> quirk detection like this is not needed.

Not needed, but no harm done either, right?

I guess I'll defer judgement on this to Hans and Ville (Cc'd).

Side note, I'm about to apply some (minor) conflicting changes in our
-next as soon as I get CI results on it.


BR,
Jani.


>
> Signed-off-by: Derek Basehore <dbasehore@xxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/drm_connector.c | 16 ++++------------
>  drivers/gpu/drm/i915/intel_dp.c | 14 +++++++++++---
>  drivers/gpu/drm/i915/vlv_dsi.c  | 14 ++++++++++----
>  include/drm/drm_connector.h     |  2 +-
>  4 files changed, 26 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index e17586aaa80f..58a09b65028b 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -1894,31 +1894,23 @@ 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;
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index b099a9dc28fd..72ab090ea97a 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -40,6 +40,7 @@
>  #include <drm/drm_edid.h>
>  #include <drm/drm_hdcp.h>
>  #include <drm/drm_probe_helper.h>
> +#include <drm/drm_utils.h>
>  #include <drm/i915_drm.h>
>  
>  #include "i915_debugfs.h"
> @@ -7281,9 +7282,16 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
>  	intel_connector->panel.backlight.power = intel_edp_backlight_power;
>  	intel_panel_setup_backlight(connector, pipe);
>  
> -	if (fixed_mode)
> -		drm_connector_init_panel_orientation_property(
> -			connector, fixed_mode->hdisplay, fixed_mode->vdisplay);
> +	if (fixed_mode) {
> +		int orientation = drm_get_panel_orientation_quirk(
> +				fixed_mode->hdisplay, fixed_mode->vdisplay);
> +
> +		if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
> +			connector->display_info.panel_orientation =
> +				orientation;
> +
> +		drm_connector_init_panel_orientation_property(connector);
> +	}
>  
>  	return true;
>  
> diff --git a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
> index bfe2891eac37..27f86a787f60 100644
> --- a/drivers/gpu/drm/i915/vlv_dsi.c
> +++ b/drivers/gpu/drm/i915/vlv_dsi.c
> @@ -30,6 +30,7 @@
>  #include <drm/drm_crtc.h>
>  #include <drm/drm_edid.h>
>  #include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_utils.h>
>  
>  #include "i915_drv.h"
>  #include "intel_atomic.h"
> @@ -1650,6 +1651,7 @@ static void intel_dsi_add_properties(struct intel_connector *connector)
>  
>  	if (connector->panel.fixed_mode) {
>  		u32 allowed_scalers;
> +		int orientation;
>  
>  		allowed_scalers = BIT(DRM_MODE_SCALE_ASPECT) | BIT(DRM_MODE_SCALE_FULLSCREEN);
>  		if (!HAS_GMCH(dev_priv))
> @@ -1660,12 +1662,16 @@ static void intel_dsi_add_properties(struct intel_connector *connector)
>  
>  		connector->base.state->scaling_mode = DRM_MODE_SCALE_ASPECT;
>  
> -		connector->base.display_info.panel_orientation =
> -			vlv_dsi_get_panel_orientation(connector);
> -		drm_connector_init_panel_orientation_property(
> -				&connector->base,
> +		orientation = drm_get_panel_orientation_quirk(
>  				connector->panel.fixed_mode->hdisplay,
>  				connector->panel.fixed_mode->vdisplay);
> +		if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
> +			connector->base.display_info.panel_orientation = orientation;
> +		else
> +			connector->base.display_info.panel_orientation =
> +				vlv_dsi_get_panel_orientation(connector);
> +
> +		drm_connector_init_panel_orientation_property(&connector->base);
>  	}
>  }
>  
> diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
> index 47e749b74e5f..c2992f7a0dd5 100644
> --- a/include/drm/drm_connector.h
> +++ b/include/drm/drm_connector.h
> @@ -1370,7 +1370,7 @@ 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 width, int height);
> +	struct drm_connector *connector);
>  int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
>  					  int min, int max);

-- 
Jani Nikula, Intel Open Source Graphics Center
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