> -----Original Message-----
> From: dri-devel <dri-devel-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Gwan-
> gyeong Mun
> Sent: Tuesday, February 4, 2020 4:50 AM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: linux-fbdev@xxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Subject: [PATCH v3 01/17] drm: add DP 1.4 VSC SDP Payload related enums and a
> structure
%s/add/Add/
Also you can rephrase this as " Add DP1.4 VSC SDP Payload related Data Structures"/
> It adds new enumeration definitions for VSC SDP Payload for Pixel
> Encoding/Colorimetry Format.
> And it adds a new drm data structure for DP VSC SDP.
>
> enum dp_colorspace and enum dp_colorimetry correspond "Pixel Encoding and
> Colorimetry Formats". enum dp_dynamic_range corresponds "Dynamic Range".
> And enum dp_content_type corresponds "Content Type"
> All of them are based on DP 1.4 spec [Table 2-117: VSC SDP Payload for
> DB16 through DB18].
>
> v3: Add a new drm data structure for DP VSC SDP
>
> Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@xxxxxxxxx>
> ---
> include/drm/drm_dp_helper.h | 57 +++++++++++++++++++++++++++++++++++++
> 1 file changed, 57 insertions(+)
>
> diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index
> 262faf9e5e94..c098727681fa 100644
> --- a/include/drm/drm_dp_helper.h
> +++ b/include/drm/drm_dp_helper.h
> @@ -1209,6 +1209,63 @@ struct dp_sdp {
> #define EDP_VSC_PSR_UPDATE_RFB (1<<1)
> #define EDP_VSC_PSR_CRC_VALUES_VALID (1<<2)
>
> +/* Based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
> +DB18] */ enum dp_colorspace {
We should not call this colorspace, rather rename it to dp_pixelformat.
These are not colorspaces.
Also add these to kernel docs as they are standard definitions.
> + DP_COLORSPACE_RGB = 0,
Make this as DP_PIXELFORMAT_RGB and rename all the below ones as well.
> + DP_COLORSPACE_YUV444 = 0x1,
> + DP_COLORSPACE_YUV422 = 0x2,
> + DP_COLORSPACE_YUV420 = 0x3,
> + DP_COLORSPACE_Y_ONLY = 0x4,
> + DP_COLORSPACE_RAW = 0x5,
> + DP_COLORSPACE_RESERVED = 0x6,
> +};
> +
> +/**
> + * Based on DP 1.4 spec [Table 2-117: VSC SDP Payload for DB16 through
> +DB18]
> + * and a name of enum member followes DRM_MODE_COLORIMETRY definition.
Typo in follows
> + */
> +enum dp_colorimetry {
You can call this as dp_colorspace (this is actual colorspace), you can stick with colorimetry as well.
Will leave that to you.
> + DP_COLORIMETRY_DEFAULT = 0, /* sRGB (IEC 61966-2-1) / ITU-R BT.601 */
> + DP_COLORIMETRY_RGB_WIDE_FIXED = 0x1,
> + DP_COLORIMETRY_BT709_YCC = 0x1,
> + DP_COLORIMETRY_RGB_WIDE_FLOAT = 0x2,
> + DP_COLORIMETRY_XVYCC_601 = 0x2,
> + DP_COLORIMETRY_OPRGB = 0x3,
> + DP_COLORIMETRY_XVYCC_709 = 0x3,
> + DP_COLORIMETRY_DCI_P3_RGB = 0x4,
> + DP_COLORIMETRY_SYCC_601 = 0x4,
> + DP_COLORIMETRY_RGB_CUSTOM = 0x5,
> + DP_COLORIMETRY_OPYCC_601 = 0x5,
> + DP_COLORIMETRY_BT2020_RGB = 0x6,
> + DP_COLORIMETRY_BT2020_CYCC = 0x6,
> + DP_COLORIMETRY_BT2020_YCC = 0x7,
> +};
> +
> +enum dp_dynamic_range {
> + DP_DYNAMIC_RANGE_VESA = 0,
> + DP_DYNAMIC_RANGE_CTA = 1,
> +};
> +
> +enum dp_content_type {
> + DP_CONTENT_TYPE_NOT_DEFINED = 0x00,
> + DP_CONTENT_TYPE_GRAPHICS = 0x01,
> + DP_CONTENT_TYPE_PHOTO = 0x02,
> + DP_CONTENT_TYPE_VIDEO = 0x03,
> + DP_CONTENT_TYPE_GAME = 0x04,
> +};
> +
> +/* DRM DP VSC SDP as per DP 1.4 spec */ struct drm_dp_vsc_sdp {
> + unsigned char sdp_type; /* Secondary-data Packet Type */
> + unsigned char revision; /* Revision Number */
These comments seems self-explanatory, you can probably drop them.
> + unsigned char length; /* Number of Valid Data Bytes */
> + enum dp_colorspace colorspace;
> + enum dp_colorimetry colorimetry;
> + int bpc; /* bit per color */
> + enum dp_dynamic_range dynamic_range;
> + enum dp_content_type content_type;
> +};
> +
> int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]);
>
> static inline int
> --
> 2.24.1
>
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