On Wed, 21 Dec 2016, vathsala nagaraju vathsala.nagaraju@intel.com 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@intel.com Cc: Jim Bride jim.bride@linux.intel.com Signed-off-by: Vathsala Nagaraju vathsala.nagaraju@intel.com
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