[Intel-gfx] [PATCH 2/2] drm/i915: Use existing DSI backlight ports info

[Jani Nikula]

On Fri, 13 Oct 2017, Madhav Chauhan <madhav.chauhan at intel.com> wrote:
> This patch re-use already parsed DSI backlight/cabc ports
> info for saving it inside struct intel_dsi rather than
> parsing it at the time of DSI initialization.
>
> V2: Remove backlight and cabc variable initialization (Jani N).
>
> Reviewed-by: Jani Nikula <jani.nikula at intel.com>
> Signed-off-by: Madhav Chauhan <madhav.chauhan at intel.com>

Reviewed-by: Jani Nikula <jani.nikula at intel.com>


> ---
>  drivers/gpu/drm/i915/intel_bios.c |  2 --
>  drivers/gpu/drm/i915/intel_dsi.c  | 37 ++++---------------------------------
>  2 files changed, 4 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
> index fb30f9a..0ee0cb1 100644
> --- a/drivers/gpu/drm/i915/intel_bios.c
> +++ b/drivers/gpu/drm/i915/intel_bios.c
> @@ -738,8 +738,6 @@ static void parse_dsi_backlight_ports(struct drm_i915_private *dev_priv,
>  		if (dev_priv->vbt.dsi.config->cabc_supported)
>  			dev_priv->vbt.dsi.cabc_ports = BIT(port);
>  
> -		dev_priv->vbt.dsi.config->dl_dcs_cabc_ports = 0;
> -		dev_priv->vbt.dsi.config->dl_dcs_backlight_ports = 0;
>  		return;
>  	}
>  
> diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
> index 20a7b00..6d21ae8 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.c
> +++ b/drivers/gpu/drm/i915/intel_dsi.c
> @@ -1746,42 +1746,13 @@ void intel_dsi_init(struct drm_i915_private *dev_priv)
>  	else
>  		intel_encoder->crtc_mask = BIT(PIPE_B);
>  
> -	if (dev_priv->vbt.dsi.config->dual_link) {
> +	if (dev_priv->vbt.dsi.config->dual_link)
>  		intel_dsi->ports = BIT(PORT_A) | BIT(PORT_C);
> -
> -		switch (dev_priv->vbt.dsi.config->dl_dcs_backlight_ports) {
> -		case DL_DCS_PORT_A:
> -			intel_dsi->dcs_backlight_ports = BIT(PORT_A);
> -			break;
> -		case DL_DCS_PORT_C:
> -			intel_dsi->dcs_backlight_ports = BIT(PORT_C);
> -			break;
> -		default:
> -		case DL_DCS_PORT_A_AND_C:
> -			intel_dsi->dcs_backlight_ports = BIT(PORT_A) | BIT(PORT_C);
> -			break;
> -		}
> -
> -		switch (dev_priv->vbt.dsi.config->dl_dcs_cabc_ports) {
> -		case DL_DCS_PORT_A:
> -			intel_dsi->dcs_cabc_ports = BIT(PORT_A);
> -			break;
> -		case DL_DCS_PORT_C:
> -			intel_dsi->dcs_cabc_ports = BIT(PORT_C);
> -			break;
> -		default:
> -		case DL_DCS_PORT_A_AND_C:
> -			intel_dsi->dcs_cabc_ports = BIT(PORT_A) | BIT(PORT_C);
> -			break;
> -		}
> -	} else {
> +	else
>  		intel_dsi->ports = BIT(port);
> -		intel_dsi->dcs_backlight_ports = BIT(port);
> -		intel_dsi->dcs_cabc_ports = BIT(port);
> -	}
>  
> -	if (!dev_priv->vbt.dsi.config->cabc_supported)
> -		intel_dsi->dcs_cabc_ports = 0;
> +	intel_dsi->dcs_backlight_ports = dev_priv->vbt.dsi.bl_ports;
> +	intel_dsi->dcs_cabc_ports = dev_priv->vbt.dsi.cabc_ports;
>  
>  	/* Create a DSI host (and a device) for each port. */
>  	for_each_dsi_port(port, intel_dsi->ports) {

-- 
Jani Nikula, Intel Open Source Technology Center