lkml.org 
[lkml]   [2019]   [Oct]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] drm: Fix DSC throughput mode 0 mask definition
Date
On 2019-10-21 11:03 a.m., Siqueira, Rodrigo wrote:
> Commit d7cd0e05 introduced a change at DP_DSC_THROUGHPUT_MODE_0_170
> which is not aligned with the spec. This commit replace 15 << 4 by
> 15 << 0 for DP_DSC_THROUGHPUT_MODE_0_170 in order to make it follow the
> specification.
>
> Cc: Harry Wentland <harry.wentland@amd.com>
> Cc: Leo Li <sunpeng.li@amd.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Cc: Nikola Cornij <nikola.cornij@amd.com>
> Cc: Jani Nikula <jani.nikula@linux.intel.com>
> Cc: Manasi Navare <manasi.d.navare@intel.com>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Fixes: d7cd0e053b1 (drm/amd/display: Add 170Mpix/sec DSC throughput support)
> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>

Reviewed-by: Harry Wentland <harry.wentland@amd.com>

Harry

> ---
> include/drm/drm_dp_helper.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
> index cfadeeef8492..52024049c59e 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -306,7 +306,7 @@
> # define DP_DSC_THROUGHPUT_MODE_0_900 (12 << 0)
> # define DP_DSC_THROUGHPUT_MODE_0_950 (13 << 0)
> # define DP_DSC_THROUGHPUT_MODE_0_1000 (14 << 0)
> -# define DP_DSC_THROUGHPUT_MODE_0_170 (15 << 4)
> +# define DP_DSC_THROUGHPUT_MODE_0_170 (15 << 0) /* 1.4a */
> # define DP_DSC_THROUGHPUT_MODE_1_MASK (0xf << 4)
> # define DP_DSC_THROUGHPUT_MODE_1_SHIFT 4
> # define DP_DSC_THROUGHPUT_MODE_1_UPSUPPORTED 0
>

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2019-10-21 17:37    [W:0.110 / U:1.884 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site