drm/amd/dc: Add dc display driver (v2)

Supported DCE versions: 8.0, 10.0, 11.0, 11.2

v2: rebase against 4.11

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 105 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
new file mode 100644
index 000000000000..befc4985fe54
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef DC_DP_TYPES_H
+#define DC_DP_TYPES_H
+
+enum dc_lane_count {
+	LANE_COUNT_UNKNOWN = 0,
+	LANE_COUNT_ONE = 1,
+	LANE_COUNT_TWO = 2,
+	LANE_COUNT_FOUR = 4,
+	LANE_COUNT_EIGHT = 8,
+	LANE_COUNT_DP_MAX = LANE_COUNT_FOUR
+};
+
+/* This is actually a reference clock (27MHz) multiplier
+ * 162MBps bandwidth for 1.62GHz like rate,
+ * 270MBps for 2.70GHz,
+ * 324MBps for 3.24Ghz,
+ * 540MBps for 5.40GHz
+ * 810MBps for 8.10GHz
+ */
+enum dc_link_rate {
+	LINK_RATE_UNKNOWN = 0,
+	LINK_RATE_LOW = 0x06,
+	LINK_RATE_HIGH = 0x0A,
+	LINK_RATE_RBR2 = 0x0C,
+	LINK_RATE_HIGH2 = 0x14,
+	LINK_RATE_HIGH3 = 0x1E
+};
+
+enum dc_link_spread {
+	LINK_SPREAD_DISABLED = 0x00,
+	/* 0.5 % downspread 30 kHz */
+	LINK_SPREAD_05_DOWNSPREAD_30KHZ = 0x10,
+	/* 0.5 % downspread 33 kHz */
+	LINK_SPREAD_05_DOWNSPREAD_33KHZ = 0x11
+};
+
+enum dc_voltage_swing {
+	VOLTAGE_SWING_LEVEL0 = 0,	/* direct HW translation! */
+	VOLTAGE_SWING_LEVEL1,
+	VOLTAGE_SWING_LEVEL2,
+	VOLTAGE_SWING_LEVEL3,
+	VOLTAGE_SWING_MAX_LEVEL = VOLTAGE_SWING_LEVEL3
+};
+
+enum dc_pre_emphasis {
+	PRE_EMPHASIS_DISABLED = 0,	/* direct HW translation! */
+	PRE_EMPHASIS_LEVEL1,
+	PRE_EMPHASIS_LEVEL2,
+	PRE_EMPHASIS_LEVEL3,
+	PRE_EMPHASIS_MAX_LEVEL = PRE_EMPHASIS_LEVEL3
+};
+/* Post Cursor 2 is optional for transmitter
+ * and it applies only to the main link operating at HBR2
+ */
+enum dc_post_cursor2 {
+	POST_CURSOR2_DISABLED = 0,	/* direct HW translation! */
+	POST_CURSOR2_LEVEL1,
+	POST_CURSOR2_LEVEL2,
+	POST_CURSOR2_LEVEL3,
+	POST_CURSOR2_MAX_LEVEL = POST_CURSOR2_LEVEL3,
+};
+
+struct dc_link_settings {
+	enum dc_lane_count lane_count;
+	enum dc_link_rate link_rate;
+	enum dc_link_spread link_spread;
+};
+
+struct dc_lane_settings {
+	enum dc_voltage_swing VOLTAGE_SWING;
+	enum dc_pre_emphasis PRE_EMPHASIS;
+	enum dc_post_cursor2 POST_CURSOR2;
+};
+
+struct dc_link_training_settings {
+	struct dc_link_settings link;
+	struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX];
+};
+
+#endif /* DC_DP_TYPES_H */