Re: [PATCH] drm: Fix DSC BPP increment decoding

2025-02-13 Thread Imre Deak
On Wed, Feb 12, 2025 at 06:46:40PM +0200, Jani Nikula wrote: > On Wed, 12 Feb 2025, Imre Deak wrote: > > Starting with DPCD version 2.0 bits 6:3 of the DP_DSC_BITS_PER_PIXEL_INC > > DPCD register contains the NativeYCbCr422_MAX_bpp_DELTA field, which can > > be non-zero as opposed to earlier DPCD

Re: [PATCH] drm: Fix DSC BPP increment decoding

2025-02-12 Thread Jani Nikula
On Wed, 12 Feb 2025, Imre Deak wrote: > Starting with DPCD version 2.0 bits 6:3 of the DP_DSC_BITS_PER_PIXEL_INC > DPCD register contains the NativeYCbCr422_MAX_bpp_DELTA field, which can > be non-zero as opposed to earlier DPCD versions, hence decoding the > bit_per_pixel increment value at bits

[PATCH] drm: Fix DSC BPP increment decoding

2025-02-12 Thread Imre Deak
Starting with DPCD version 2.0 bits 6:3 of the DP_DSC_BITS_PER_PIXEL_INC DPCD register contains the NativeYCbCr422_MAX_bpp_DELTA field, which can be non-zero as opposed to earlier DPCD versions, hence decoding the bit_per_pixel increment value at bits 2:0 in the same register requires applying a ma