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| author | Imre Deak <imre.deak@intel.com> | 2026-01-14 19:22:24 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2026-01-15 21:19:04 +0300 |
| commit | 15f908bce5d90fcfbc0599e426530cc10e9dfef3 (patch) | |
| tree | 4031044404940ce7b0655392a0c04f95fc4caf5f | |
| parent | e941eb107847f7a910e309799cdde49493b857cf (diff) | |
| download | linux-15f908bce5d90fcfbc0599e426530cc10e9dfef3.tar.xz | |
drm/i915/dp: Factor out intel_dp_dsc_min_slice_count()
Factor out intel_dp_dsc_min_slice_count() for making
intel_dp_dsc_get_slice_count() more readable and also to prepare for a
follow-up change unifying the eDP and DP slice count/config computation.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260114162232.92731-8-imre.deak@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 3a12156cd6e5..4455d0a2e59c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -959,14 +959,11 @@ u32 get_max_compressed_bpp_with_joiner(struct intel_display *display, return max_bpp; } -u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector, - int mode_clock, int mode_hdisplay, - int num_joined_pipes) +static int intel_dp_dsc_min_slice_count(const struct intel_connector *connector, + int mode_clock, int mode_hdisplay) { struct intel_display *display = to_intel_display(connector); - u32 sink_slice_count_mask = - drm_dp_dsc_sink_slice_count_mask(connector->dp.dsc_dpcd, false); - u8 min_slice_count, i; + u8 min_slice_count; int max_slice_width; int tp_rgb_yuv444; int tp_yuv422_420; @@ -1025,6 +1022,20 @@ u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector, DIV_ROUND_UP(mode_hdisplay, max_slice_width)); + return min_slice_count; +} + +u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector, + int mode_clock, int mode_hdisplay, + int num_joined_pipes) +{ + struct intel_display *display = to_intel_display(connector); + int min_slice_count = + intel_dp_dsc_min_slice_count(connector, mode_clock, mode_hdisplay); + u32 sink_slice_count_mask = + drm_dp_dsc_sink_slice_count_mask(connector->dp.dsc_dpcd, false); + int i; + /* Find the closest match to the valid slice count values */ for (i = 0; i < ARRAY_SIZE(valid_dsc_slicecount); i++) { u8 test_slice_count = valid_dsc_slicecount[i] * num_joined_pipes; |