[PATCH] drm/i915/dp: Fix the computation for compressed_bpp for DISPLAY < 13

[Kandpal, Suraj]

> Subject: [PATCH] drm/i915/dp: Fix the computation for compressed_bpp for
> DISPLAY < 13
> 
> For DISPLAY < 13, compressed bpp is chosen from a list of supported
> compressed bpps. Fix the condition to choose the appropriate compressed
> bpp from the list.
> 

LGTM,
Reviewed-by: Suraj Kandpal <suraj.kandpal at intel.com>

> Fixes: 1c56e9a39833 ("drm/i915/dp: Get optimal link config to have best
> compressed bpp")
> Cc: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
> Cc: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
> Cc: Jani Nikula <jani.nikula at linux.intel.com>
> Cc: <stable at vger.kernel.org> # v6.7+
> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/10162
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c
> b/drivers/gpu/drm/i915/display/intel_dp.c
> index e13121dc3a03..d579195f84ee 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -1918,8 +1918,9 @@ icl_dsc_compute_link_config(struct intel_dp
> *intel_dp,
>  	dsc_max_bpp = min(dsc_max_bpp, pipe_bpp - 1);
> 
>  	for (i = 0; i < ARRAY_SIZE(valid_dsc_bpp); i++) {
> -		if (valid_dsc_bpp[i] < dsc_min_bpp ||
> -		    valid_dsc_bpp[i] > dsc_max_bpp)
> +		if (valid_dsc_bpp[i] < dsc_min_bpp)
> +			continue;
> +		if (valid_dsc_bpp[i] > dsc_max_bpp)
>  			break;
> 
>  		ret = dsc_compute_link_config(intel_dp,
> --
> 2.40.1