Re: [V2] drm/i915: Add icl mipi dsi properties

[Jani Nikula <jani.nikula@intel.com>]

On Wed, 26 Jun 2019, Vandita Kulkarni <vandita.kulkarni@intel.com> wrote:
> Add scaling and panel orientation properties for
> icl mipi dsi.
>
> v2: Add platform specific function (Ville)
>
> Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
> ---
>  drivers/gpu/drm/i915/display/icl_dsi.c | 30 ++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/display/vlv_dsi.c |  4 ++--
>  2 files changed, 32 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
> index b8673debf932..002db3300f40 100644
> --- a/drivers/gpu/drm/i915/display/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/display/icl_dsi.c
> @@ -1255,9 +1255,14 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder,
>  					intel_connector->panel.fixed_mode;
>  	struct drm_display_mode *adjusted_mode =
>  					&pipe_config->base.adjusted_mode;
> +	int ret = 0;

No ned to initialize.

>  
>  	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
>  	intel_fixed_panel_mode(fixed_mode, adjusted_mode);
> +
> +	ret = skl_update_scaler_crtc(pipe_config);
> +	if (ret)
> +		return ret;
>  	intel_pch_panel_fitting(crtc, pipe_config, conn_state->scaling_mode);
>  
>  	adjusted_mode->flags = 0;
> @@ -1508,6 +1513,29 @@ static void icl_dphy_param_init(struct intel_dsi *intel_dsi)
>  	intel_dsi_log_params(intel_dsi);
>  }
>  
> +static void icl_dsi_add_properties(struct intel_connector *connector)
> +{
> +	u32 allowed_scalers;
> +
> +	if (!connector->panel.fixed_mode)
> +		return;

This is a redundant check, as the caller bails out if fixed_mode is
NULL.

Otherwise LGTM, maybe Ville has more nitpicks? ;)

BR,
Jani.

> +
> +	allowed_scalers = BIT(DRM_MODE_SCALE_ASPECT) |
> +			   BIT(DRM_MODE_SCALE_FULLSCREEN) |
> +			   BIT(DRM_MODE_SCALE_CENTER);
> +
> +	drm_connector_attach_scaling_mode_property(&connector->base,
> +							allowed_scalers);
> +
> +	connector->base.state->scaling_mode = DRM_MODE_SCALE_ASPECT;
> +
> +	connector->base.display_info.panel_orientation =
> +			intel_dsi_get_panel_orientation(connector);
> +	drm_connector_init_panel_orientation_property(&connector->base,
> +				connector->panel.fixed_mode->hdisplay,
> +				connector->panel.fixed_mode->vdisplay);
> +}
> +
>  void icl_dsi_init(struct drm_i915_private *dev_priv)
>  {
>  	struct drm_device *dev = &dev_priv->drm;
> @@ -1601,6 +1629,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv)
>  	}
>  
>  	icl_dphy_param_init(intel_dsi);
> +
> +	icl_dsi_add_properties(intel_connector);
>  	return;
>  
>  err:
> diff --git a/drivers/gpu/drm/i915/display/vlv_dsi.c b/drivers/gpu/drm/i915/display/vlv_dsi.c
> index e272d826210a..c8002ffd29e7 100644
> --- a/drivers/gpu/drm/i915/display/vlv_dsi.c
> +++ b/drivers/gpu/drm/i915/display/vlv_dsi.c
> @@ -1644,7 +1644,7 @@ vlv_dsi_get_panel_orientation(struct intel_connector *connector)
>  	return intel_dsi_get_panel_orientation(connector);
>  }
>  
> -static void intel_dsi_add_properties(struct intel_connector *connector)
> +static void vlv_dsi_add_properties(struct intel_connector *connector)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
>  
> @@ -1983,7 +1983,7 @@ void vlv_dsi_init(struct drm_i915_private *dev_priv)
>  	intel_panel_init(&intel_connector->panel, fixed_mode, NULL);
>  	intel_panel_setup_backlight(connector, INVALID_PIPE);
>  
> -	intel_dsi_add_properties(intel_connector);
> +	vlv_dsi_add_properties(intel_connector);
>  
>  	return;

-- 
Jani Nikula, Intel Open Source Graphics Center
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