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drm/i915/dsc/mtl: Enable alternate ICH method

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DSC 1.2 is supported from MTL, hence program ICH accordingly.

Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220817124516.284456-2-jani.nikula@intel.com
This commit is contained in:
Vandita Kulkarni 2022-08-17 15:45:16 +03:00 committed by Jani Nikula
parent 20052deeb5
commit 48bc9d5245
2 changed files with 3 additions and 0 deletions
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2
drivers/gpu/drm/i915/display/intel_vdsc.c
View File

@ -597,6 +597,8 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
DSC_VER_MIN_SHIFT |
vdsc_cfg->bits_per_component << DSC_BPC_SHIFT |
vdsc_cfg->line_buf_depth << DSC_LINE_BUF_DEPTH_SHIFT;
if (vdsc_cfg->dsc_version_minor == 2)
pps_val |= DSC_ALT_ICH_SEL;
if (vdsc_cfg->block_pred_enable)
pps_val |= DSC_BLOCK_PREDICTION;
if (vdsc_cfg->convert_rgb)

1
drivers/gpu/drm/i915/i915_reg.h
View File

@ -8003,6 +8003,7 @@ enum skl_power_gate {
#define ICL_DSC1_PICTURE_PARAMETER_SET_0(pipe) _MMIO_PIPE((pipe) - PIPE_B, \
_ICL_DSC1_PICTURE_PARAMETER_SET_0_PB, \
_ICL_DSC1_PICTURE_PARAMETER_SET_0_PC)
#define DSC_ALT_ICH_SEL (1 << 20)
#define DSC_VBR_ENABLE (1 << 19)
#define DSC_422_ENABLE (1 << 18)
#define DSC_COLOR_SPACE_CONVERSION (1 << 17)