Re: [Intel-gfx] [PATCH 4/4] drm/dp: add DPCD definitions from eDP 1.4

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On Wednesday 25 February 2015 06:16 PM, Jani Nikula wrote:
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
  include/drm/drm_dp_helper.h | 37 +++++++++++++++++++++++++++++++++++++
  1 file changed, 37 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index cc96024e8776..07d94faa9255 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -168,10 +168,18 @@
  #define DP_AUD_DEL_INS2			    0x02d
  /* End of AV_SYNC_DATA_BLOCK */
+#define DP_RECEIVER_ALPM_CAP 0x02e /* eDP 1.4 */
+# define DP_ALPM_CAP			    (1 << 0)
Yes, it is named ALPM_CAP in spec, but to me something like DP_ALPM_SUPPORTED makes more sense to me here.
+
+#define DP_SINK_DEVICE_AUX_FRAME_SYNC_CAP   0x02f   /* eDP 1.4 */
+# define DP_AUX_FRAME_SYNC_CAP		    (1 << 0)
Same comment as above.
+
  #define DP_GUID				    0x030   /* 1.2 */
#define DP_PSR_SUPPORT 0x070 /* XXX 1.2? */
  # define DP_PSR_IS_SUPPORTED                1
+# define DP_PSR2_IS_SUPPORTED		    2	    /* eDP 1.4 */
+
  #define DP_PSR_CAPS                         0x071   /* XXX 1.2? */
  # define DP_PSR_NO_TRAIN_ON_EXIT            1
  # define DP_PSR_SETUP_TIME_330              (0 << 1)
@@ -211,6 +219,7 @@
/* link configuration */
  #define	DP_LINK_BW_SET		            0x100
+# define DP_LINK_RATE_TABLE		    0x00    /* eDP 1.4 */
  # define DP_LINK_BW_1_62		    0x06
  # define DP_LINK_BW_2_7			    0x0a
  # define DP_LINK_BW_5_4			    0x14    /* 1.2 */
@@ -309,15 +318,30 @@
  #define DP_AUDIO_DELAY2			    0x114
#define DP_LINK_RATE_SET 0x115 /* eDP 1.4 */
+# define DP_LINK_RATE_SET_SHIFT		    0
+# define DP_LINK_RATE_SET_MASK		    (7 << 0)
+
+#define DP_RECEIVER_ALPM_CONFIG		    0x116   /* eDP 1.4 */
+# define DP_ALPM_ENABLE			    (1 << 0)
+# define DP_ALPM_LOCK_ERROR_IRQ_HPD_ENABLE  (1 << 1)
+
+#define DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF  0x117   /* eDP 1.4 */
+# define DP_AUX_FRAME_SYNC_ENABLE	    (1 << 0)
+# define DP_IRQ_HPD_ENABLE		    (1 << 1)
#define DP_UPSTREAM_DEVICE_DP_PWR_NEED 0x118 /* 1.2 */
  # define DP_PWR_NOT_NEEDED		    (1 << 0)
+#define DP_AUX_FRAME_SYNC_VALUE 0x15c /* eDP 1.4 */
+# define DP_AUX_FRAME_SYNC_VALID	    (1 << 0)
+
  #define DP_PSR_EN_CFG			    0x170   /* XXX 1.2? */
  # define DP_PSR_ENABLE			    (1 << 0)
  # define DP_PSR_MAIN_LINK_ACTIVE	    (1 << 1)
  # define DP_PSR_CRC_VERIFICATION	    (1 << 2)
  # define DP_PSR_FRAME_CAPTURE		    (1 << 3)
+# define DP_PSR_SELECTIVE_UPDATE	    (1 << 4)
+# define DP_PSR_IRQ_HPD_WITH_CRC_ERRORS     (1 << 5)
#define DP_ADAPTER_CTRL 0x1a0
  # define DP_ADAPTER_CTRL_FORCE_LOAD_SENSE   (1 << 0)
@@ -425,6 +449,10 @@
  # define DP_SET_POWER_MASK                  0x3
#define DP_EDP_DPCD_REV 0x700 /* eDP 1.2 */
+# define DP_EDP_11			    0x00
+# define DP_EDP_12			    0x01
+# define DP_EDP_13			    0x02
+# define DP_EDP_14			    0x03
#define DP_EDP_GENERAL_CAP_1 0x701 @@ -432,6 +460,8 @@ #define DP_EDP_GENERAL_CAP_2 0x703 +#define DP_EDP_GENERAL_CAP_3 0x704 /* eDP 1.4 */
+
  #define DP_EDP_DISPLAY_CONTROL_REGISTER     0x720
#define DP_EDP_BACKLIGHT_MODE_SET_REGISTER 0x721
@@ -458,6 +488,9 @@
  #define DP_EDP_DBC_MINIMUM_BRIGHTNESS_SET   0x732
  #define DP_EDP_DBC_MAXIMUM_BRIGHTNESS_SET   0x733
+#define DP_EDP_REGIONAL_BACKLIGHT_BASE 0x740 /* eDP 1.4 */
+#define DP_EDP_REGIONAL_BACKLIGHT_0	    0x741    /* eDP 1.4 */
+
  #define DP_SIDEBAND_MSG_DOWN_REQ_BASE	    0x1000   /* 1.2 MST */
  #define DP_SIDEBAND_MSG_UP_REP_BASE	    0x1200   /* 1.2 MST */
  #define DP_SIDEBAND_MSG_DOWN_REP_BASE	    0x1400   /* 1.2 MST */
@@ -476,6 +509,7 @@
  #define DP_PSR_ERROR_STATUS                 0x2006  /* XXX 1.2? */
  # define DP_PSR_LINK_CRC_ERROR              (1 << 0)
  # define DP_PSR_RFB_STORAGE_ERROR           (1 << 1)
+# define DP_PSR_VSC_SDP_UNCORRECTABLE_ERROR (1 << 2) /* eDP 1.4 */
#define DP_PSR_ESI 0x2007 /* XXX 1.2? */
  # define DP_PSR_CAPS_CHANGE                 (1 << 0)
@@ -489,6 +523,9 @@
  # define DP_PSR_SINK_INTERNAL_ERROR         7
  # define DP_PSR_SINK_STATE_MASK             0x07
+#define DP_RECEIVER_ALPM_STATUS 0x200b /* eDP 1.4 */
+# define DP_ALPM_LOCK_TIMEOUT_ERROR_STATUS  (1 << 0)
+
Probably just DP_ALPM_LOCK_TIMEOUT_ERROR ?
  /* DP 1.2 Sideband message defines */
  /* peer device type - DP 1.2a Table 2-92 */
  #define DP_PEER_DEVICE_NONE		0x0

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