drm/i915/dsc: Add debugfs entry to validate DSC fractional bpp

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DSC_Sink_BPP_Precision entry is added to i915_dsc_fec_support_show
to depict sink's precision.
Also, new debugfs entry is created to enforce fractional bpp.
If Force_DSC_Fractional_BPP_en is set then while iterating over
output bpp with fractional step size we will continue if output_bpp is
computed as integer. With this approach, we will be able to validate
DSC with fractional bpp.

v2:
Add drm_modeset_unlock to new line(Suraj)

Signed-off-by: Swati Sharma <swati2.sharma@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20231110101020.4067342-8-ankit.k.nautiyal@intel.com

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Swati Sharma 2023-11-10 15:40:16 +05:30 • committed by Ankit Nautiyal

parent dc59990efd

commit 680c1e31a5

2 changed files with 85 additions and 0 deletions

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84

drivers/gpu/drm/i915/display/intel_display_debugfs.c

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1

drivers/gpu/drm/i915/display/intel_display_types.h

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