On Wed, 21 Dec 2016, vathsala nagaraju <vathsala.nagaraju@xxxxxxxxx> wrote: > PSR2 vsc revision number hb2( as per table 6-11)is updated to > 4 or 5 based on Y cordinate and Colorimetry Format as below > 04h = 3D stereo + PSR/PSR2 + Y-coordinate. > 05h = -3D stereo- + PSR/PSR2 + Y-coordinate + Pixel Encoding/Colorimetry > Format indication. A DP Source device is allowed to indicate the pixel > encoding/colorimetry format to the DP Sink device with VSC SDP only when > the DP Sink device supports it ( > i.e.,VSC_SDP_EXTENSION_FOR_COLORIMETRY_SUPPORTED bit in the > DPRX_FEATURE_ENUMERATION_LIST register (DPCD Address 02210h, bit 3; > is set to 1). > > Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> > Cc: Jim Bride <jim.bride@xxxxxxxxxxxxxxx> > Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@xxxxxxxxx> > --- > include/drm/drm_dp_helper.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h > index 55bbeb0..b3d2858 100644 > --- a/include/drm/drm_dp_helper.h > +++ b/include/drm/drm_dp_helper.h > @@ -194,6 +194,7 @@ > # define DP_PSR_SETUP_TIME_0 (6 << 1) > # define DP_PSR_SETUP_TIME_MASK (7 << 1) > # define DP_PSR_SETUP_TIME_SHIFT 1 > +# define DP_PSR_Y_COORDINATE (1 << 4) /* eDP 1.4 */ Do you think DP_PSR2_SU_Y_COORDINATE_REQUIRED would be too long? It was introduced in eDP 1.4a to be specific. While adding stuff here, please also add DP_PSR2_SU_GRANULARITY_REQUIRED from eDP v1.4b. > > /* > * 0x80-0x8f describe downstream port capabilities, but there are two layouts > @@ -568,6 +569,9 @@ > #define DP_RECEIVER_ALPM_STATUS 0x200b /* eDP 1.4 */ > # define DP_ALPM_LOCK_TIMEOUT_ERROR (1 << 0) > > +#define DPRX_FEATURE_ENUMERATION_LIST 0x2210 > +# define VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED (1 << 3) > + All DPCD register and bit defs in this file are prefixed with DP_. Please add that. If you're going through the trouble of adding the bits from the spec, you might as well add all of the bits in this register, and I could review them at no extra trouble, instead of everyone adding bits and pieces a little bit at a time. Saves everyone some trouble. BR, Jani. > /* DP 1.2 Sideband message defines */ > /* peer device type - DP 1.2a Table 2-92 */ > #define DP_PEER_DEVICE_NONE 0x0 -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
