1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_ddc.h b/drivers/gpu/drm/amd/display/dc/link/protocols/link_ddc.h
new file mode 100644
index 000000000000..86e9d2e886d6
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_ddc.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2012-15 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 __DAL_DDC_SERVICE_H__
+#define __DAL_DDC_SERVICE_H__
+
+#include "link.h"
+
+#define AUX_POWER_UP_WA_DELAY 500
+#define I2C_OVER_AUX_DEFER_WA_DELAY 70
+#define DPVGA_DONGLE_AUX_DEFER_WA_DELAY 40
+#define I2C_OVER_AUX_DEFER_WA_DELAY_1MS 1
+#define LINK_AUX_DEFAULT_LTTPR_TIMEOUT_PERIOD 3200 /*us*/
+
+#define EDID_SEGMENT_SIZE 256
+
+void set_ddc_transaction_type(
+		struct ddc_service *ddc,
+		enum ddc_transaction_type type);
+
+bool try_to_configure_aux_timeout(struct ddc_service *ddc,
+		uint32_t timeout);
+
+void write_scdc_data(
+		struct ddc_service *ddc_service,
+		uint32_t pix_clk,
+		bool lte_340_scramble);
+
+void read_scdc_data(
+		struct ddc_service *ddc_service);
+
+void set_dongle_type(struct ddc_service *ddc,
+		enum display_dongle_type dongle_type);
+
+struct ddc *get_ddc_pin(struct ddc_service *ddc_service);
+
+#endif /* __DAL_DDC_SERVICE_H__ */
+