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014da1db5e
Parse the HDMI 2.1 gaming-related capabilities advertised in the HDMI Forum VSDB (HF-VSDB) and expose them through struct drm_hdmi_info so drivers can consume them. Add struct drm_hdmi_vrr_cap describing the sink's VRR capabilities: Fast VActive (Quick Frame Transport), Negative M VRR, Cinema VRR, MDelta, and the VRRmin/VRRmax range, together with a "supported" flag derived from that range. Add the fapa_start_location and allm (Auto Low Latency Mode) flags to struct drm_hdmi_info. drm_parse_hdmi_gaming_info() reads byte 8 of the HF-VSDB for the FAPA/ALLM/FVA/CNMVRR/CinemaVRR/MDelta flags and bytes 9-10 for VRRmin/VRRmax. Per HDMI 2.1, VRR is considered supported when VRRmin is within 1-48 and VRRmax is either 0 (maximum based on the video mode) or >= 100. It is invoked from drm_parse_hdmi_forum_scds(), and the parsed values are logged for debugging. Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com> Tested-by: Bernhard Berger <bernhard.berger@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Link: https://patch.msgid.link/20260730171754.704049-2-jerry.zuo@amd.com |
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| .. | ||
| drm | ||
| host1x | ||
| ipu-v3 | ||
| nova-core | ||
| tests | ||
| trace | ||
| vga | ||
| buddy.c | ||
| Kconfig | ||
| Makefile | ||