[Intel-gfx] [PATCH v4 1/2] drm/i915/display/icl: Bump up the hdisplay and vdisplay as per transcoder limits

[Ville Syrjälä]

On Fri, Jul 12, 2019 at 01:22:13PM -0700, Manasi Navare wrote:
> On ICL+, the vertical limits for the transcoders are increased to 8192
> and horizontal limits are bumped to 16K so bump up
> limits in intel_mode_valid()
> 
> v4:
> * Increase the hdisplay to 16K (Ville)
> v3:
> * Supported starting ICL (Ville)
> * Use the higher limits from TRANS_VTOTAL register (Ville)
> v2:
> * Checkpatch warning (Manasi)
> 
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Signed-off-by: Manasi Navare <manasi.d.navare at intel.com>

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index f07081815b80..15006764862b 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -15764,8 +15764,13 @@ intel_mode_valid(struct drm_device *dev,
>  			   DRM_MODE_FLAG_CLKDIV2))
>  		return MODE_BAD;
>  
> -	if (INTEL_GEN(dev_priv) >= 9 ||
> -	    IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) {
> +	if (INTEL_GEN(dev_priv) >= 11) {
> +		hdisplay_max = 16384;
> +		vdisplay_max = 8192;
> +		htotal_max = 16384;
> +		vtotal_max = 8192;
> +	} else if (INTEL_GEN(dev_priv) >= 9 ||
> +		   IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) {
>  		hdisplay_max = 8192; /* FDI max 4096 handled elsewhere */
>  		vdisplay_max = 4096;
>  		htotal_max = 8192;
> -- 
> 2.19.1

-- 
Ville Syrjälä
Intel