[Intel-gfx] [RFC 01/13] drm/edid: Add additional HFVSDB fields for HDMI2.1

[Shankar, Uma]

> -----Original Message-----
> From: Nautiyal, Ankit K <ankit.k.nautiyal at intel.com>
> Sent: Thursday, October 15, 2020 4:23 PM
> To: intel-gfx at lists.freedesktop.org
> Cc: dri-devel at lists.freedesktop.org; Shankar, Uma <uma.shankar at intel.com>;
> Kulkarni, Vandita <vandita.kulkarni at intel.com>; ville.syrjala at linux.intel.com;
> Sharma, Swati2 <swati2.sharma at intel.com>
> Subject: [RFC 01/13] drm/edid: Add additional HFVSDB fields for HDMI2.1
> 
> From: Swati Sharma <swati2.sharma at intel.com>
> 
> The HDMI2.1 extends HFVSBD (HDMI Forum Vendor Specific Data block) to have

Typo in HFVSDB

> fields related to newly defined methods of FRL (Fixed Rate Link) levels, number
> of lanes supported, DSC Color bit depth, VRR min/max, FVA (Fast Vactive), ALLM
> etc.
> 
> This patch adds the new HFVSDB fields that are required for HDMI2.1.
> 
> Signed-off-by: Sharma, Swati2 <swati2.sharma at intel.com>
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
> ---
>  include/drm/drm_edid.h | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index
> b27a0e2169c8..1cc5c2c73282 100644
> --- a/include/drm/drm_edid.h
> +++ b/include/drm/drm_edid.h
> @@ -229,6 +229,36 @@ struct detailed_timing {
>  				    DRM_EDID_YCBCR420_DC_36 | \
>  				    DRM_EDID_YCBCR420_DC_30)
> 
> +/* HDMI 2.1 additional fields */
> +#define DRM_EDID_MAX_FRL_RATE_MASK		0xf0
> +#define DRM_EDID_FAPA_START_LOCATION		(1 << 0)
> +#define DRM_EDID_ALLM				(1 << 1)
> +#define DRM_EDID_FVA				(1 << 2)
> +
> +/* Deep Color specific */
> +#define DRM_EDID_DC_30BIT_420			(1 << 0)
> +#define DRM_EDID_DC_36BIT_420			(1 << 1)
> +#define DRM_EDID_DC_48BIT_420			(1 << 2)
> +
> +/* VRR specific */
> +#define DRM_EDID_CNMVRR				(1 << 3)
> +#define DRM_EDID_CINEMA_VRR			(1 << 4)
> +#define DRM_EDID_MDELTA				(1 << 5)
> +#define DRM_EDID_VRR_MAX_UPPER_MASK		0xc0
> +#define DRM_EDID_VRR_MAX_LOWER_MASK		0xff
> +#define DRM_EDID_VRR_MIN_MASK			0x3f
> +
> +/* DSC specific */
> +#define DRM_EDID_DSC_10BPC			(1 << 0)
> +#define DRM_EDID_DSC_12BPC			(1 << 1)
> +#define DRM_EDID_DSC_16BPC			(1 << 2)
> +#define DRM_EDID_DSC_ALL_BPP			(1 << 3)
> +#define DRM_EDID_DSC_NATIVE_420			(1 << 6)
> +#define DRM_EDID_DSC_1P2			(1 << 7)
> +#define DRM_EDID_DSC_MAX_FRL_RATE		0xf

This should be set as mask and made it as 0xf0

> +#define DRM_EDID_DSC_MAX_SLICES			0xf
> +#define DRM_EDID_DSC_TOTAL_CHUNK_KBYTES		0x3f
> +
>  /* ELD Header Block */
>  #define DRM_ELD_HEADER_BLOCK_SIZE	4
> 
> --
> 2.17.1