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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/dc_link_dpia.h')
-rw-r--r--drivers/gpu/drm/amd/display/dc/inc/dc_link_dpia.h105
1 files changed, 0 insertions, 105 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dpia.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dpia.h
deleted file mode 100644
index 39c1d1d07357..000000000000
--- a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dpia.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright 2021 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_LINK_DPIA_H__
-#define __DC_LINK_DPIA_H__
-
-/* This module implements functionality for training DPIA links. */
-
-struct dc_link;
-struct dc_link_settings;
-
-/* The approximate time (us) it takes to transmit 9 USB4 DP clock sync packets. */
-#define DPIA_CLK_SYNC_DELAY 16000
-
-/* Extend interval between training status checks for manual testing. */
-#define DPIA_DEBUG_EXTENDED_AUX_RD_INTERVAL_US 60000000
-
-/** @note Can remove once DP tunneling registers in upstream include/drm/drm_dp_helper.h */
-/* DPCD DP Tunneling over USB4 */
-#define DP_TUNNELING_CAPABILITIES_SUPPORT 0xe000d
-#define DP_IN_ADAPTER_INFO 0xe000e
-#define DP_USB4_DRIVER_ID 0xe000f
-#define DP_USB4_ROUTER_TOPOLOGY_ID 0xe001b
-
-/* SET_CONFIG message types sent by driver. */
-enum dpia_set_config_type {
- DPIA_SET_CFG_SET_LINK = 0x01,
- DPIA_SET_CFG_SET_PHY_TEST_MODE = 0x05,
- DPIA_SET_CFG_SET_TRAINING = 0x18,
- DPIA_SET_CFG_SET_VSPE = 0x19
-};
-
-/* Training stages (TS) in SET_CONFIG(SET_TRAINING) message. */
-enum dpia_set_config_ts {
- DPIA_TS_DPRX_DONE = 0x00, /* Done training DPRX. */
- DPIA_TS_TPS1 = 0x01,
- DPIA_TS_TPS2 = 0x02,
- DPIA_TS_TPS3 = 0x03,
- DPIA_TS_TPS4 = 0x07,
- DPIA_TS_UFP_DONE = 0xff /* Done training DPTX-to-DPIA hop. */
-};
-
-/* SET_CONFIG message data associated with messages sent by driver. */
-union dpia_set_config_data {
- struct {
- uint8_t mode : 1;
- uint8_t reserved : 7;
- } set_link;
- struct {
- uint8_t stage;
- } set_training;
- struct {
- uint8_t swing : 2;
- uint8_t max_swing_reached : 1;
- uint8_t pre_emph : 2;
- uint8_t max_pre_emph_reached : 1;
- uint8_t reserved : 2;
- } set_vspe;
- uint8_t raw;
-};
-
-/* Read tunneling device capability from DPCD and update link capability
- * accordingly.
- */
-enum dc_status dpcd_get_tunneling_device_data(struct dc_link *link);
-
-/* Query hot plug status of USB4 DP tunnel.
- * Returns true if HPD high.
- */
-bool dc_link_dpia_query_hpd_status(struct dc_link *link);
-
-/* Train DP tunneling link for USB4 DPIA display endpoint.
- * DPIA equivalent of dc_link_dp_perfrorm_link_training.
- * Aborts link training upon detection of sink unplug.
- */
-enum link_training_result dc_link_dpia_perform_link_training(
- struct dc_link *link,
- const struct link_resource *link_res,
- const struct dc_link_settings *link_setting,
- bool skip_video_pattern);
-
-#endif /* __DC_LINK_DPIA_H__ */