drm/i915/dsb: Add support for non-posted DSB registers writes

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Writing specific transcoder registers (and as it turns out, the
legacy LUT as well) via DSB needs a magic sequence to emit
non-posted register writes. Add a helper for this.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606191504.18099-11-ville.syrjala@linux.intel.com
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

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Ville Syrjälä 2023-06-06 22:14:55 +03:00

parent e39845d651

commit 5053121b25

2 changed files with 23 additions and 0 deletions

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20

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

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3

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

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