diff options
Diffstat (limited to 'include/drm/display/drm_dp_helper.h')
-rw-r--r-- | include/drm/display/drm_dp_helper.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h index ab55453f2d2c..86f24a759268 100644 --- a/include/drm/display/drm_dp_helper.h +++ b/include/drm/display/drm_dp_helper.h @@ -181,9 +181,8 @@ static inline u16 drm_edp_dsc_sink_output_bpp(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]) { return dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_LOW - DP_DSC_SUPPORT] | - (dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_HI - DP_DSC_SUPPORT] & - DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK << - DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT); + ((dsc_dpcd[DP_DSC_MAX_BITS_PER_PIXEL_HI - DP_DSC_SUPPORT] & + DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK) << 8); } static inline u32 @@ -194,6 +193,19 @@ drm_dp_dsc_sink_max_slice_width(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE]) DP_DSC_SLICE_WIDTH_MULTIPLIER; } +/** + * drm_dp_dsc_sink_supports_format() - check if sink supports DSC with given output format + * @dsc_dpcd : DSC-capability DPCDs of the sink + * @output_format: output_format which is to be checked + * + * Returns true if the sink supports DSC with the given output_format, false otherwise. + */ +static inline bool +drm_dp_dsc_sink_supports_format(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE], u8 output_format) +{ + return dsc_dpcd[DP_DSC_DEC_COLOR_FORMAT_CAP - DP_DSC_SUPPORT] & output_format; +} + /* Forward Error Correction Support on DP 1.4 */ static inline bool drm_dp_sink_supports_fec(const u8 fec_capable) |