[Intel-gfx] [PATCH] drm/i915/psr: disable psr2 for resolution greater than 32X20

[Vivi, Rodrigo]

A bit of history on the commit message pointing the commit that
introduced the issue is desired.

With that in place feel free to use:
Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

On Tue, 2017-05-23 at 22:27 +0530, vathsala nagaraju wrote:
> psr1 is also disabled for panel resolution  greater than 32X20.
> Added psr2 check to disable only for psr2 panels having resolution
> greater than 32X20.
> 
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Cc: Jim Bride <jim.bride at linux.intel.com>
> Cc: Yaroslav Shabalin <yaroslav.shabalin at gmail.com>
> Signed-off-by: vathsala nagaraju <vathsala.nagaraju at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_psr.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
> index c3780d0..559f1ab 100644
> --- a/drivers/gpu/drm/i915/intel_psr.c
> +++ b/drivers/gpu/drm/i915/intel_psr.c
> @@ -435,8 +435,9 @@ static bool intel_psr_match_conditions(struct intel_dp *intel_dp)
>  	}
>  
>  	/* PSR2 is restricted to work with panel resolutions upto 3200x2000 */
> -	if (intel_crtc->config->pipe_src_w > 3200 ||
> -				intel_crtc->config->pipe_src_h > 2000) {
> +	if (dev_priv->psr.psr2_support &&
> +	    (intel_crtc->config->pipe_src_w > 3200 ||
> +	     intel_crtc->config->pipe_src_h > 2000)) {
>  		dev_priv->psr.psr2_support = false;
>  		return false;
>  	}