Re: [PATCH 1/1] drm/i915/cnl: Extend HDMI 2.0 support to CNL.

[Manasi Navare <manasi.d.navare@intel.com>]

Looks good.
But are these the only places that need change to support 2.0?
Dont we need any changes in voltage swing programming or DDI clocks?

Manasi`

On Fri, Nov 10, 2017 at 02:26:26PM -0800, Rodrigo Vivi wrote:
> Starting on GLK we support HDMI 2.0. So this patch only
> extend the work Shashank has made to GLK to CNL.
> 
> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
> Cc: Shashank Sharma <shashank.sharma@intel.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_hdmi.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index 2d95db64cdf2..1b22b587e98c 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -1235,7 +1235,7 @@ static int intel_hdmi_source_max_tmds_clock(struct intel_encoder *encoder)
>  		&dev_priv->vbt.ddi_port_info[encoder->port];
>  	int max_tmds_clock;
>  
> -	if (IS_GEMINILAKE(dev_priv))
> +	if (IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10)
>  		max_tmds_clock = 594000;
>  	else if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv))
>  		max_tmds_clock = 300000;
> @@ -1511,7 +1511,8 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder,
>  
>  	pipe_config->lane_count = 4;
>  
> -	if (scdc->scrambling.supported && IS_GEMINILAKE(dev_priv)) {
> +	if (scdc->scrambling.supported && (IS_GEMINILAKE(dev_priv) ||
> +					   INTEL_GEN(dev_priv) >= 10) {
>  		if (scdc->scrambling.low_rates)
>  			pipe_config->hdmi_scrambling = true;
>  
> @@ -2033,7 +2034,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
>  	connector->doublescan_allowed = 0;
>  	connector->stereo_allowed = 1;
>  
> -	if (IS_GEMINILAKE(dev_priv))
> +	if (IS_GEMINILAKE(dev_priv) || INTEL_GEN(dev_priv) >= 10)
>  		connector->ycbcr_420_allowed = true;
>  
>  	intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(dev_priv, port);
> -- 
> 2.13.6
> 
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