1 files changed, 59 insertions, 0 deletions
diff --git a/src/soc/qualcomm/sc7280/include/soc/display/edp_aux.h b/src/soc/qualcomm/sc7280/include/soc/display/edp_aux.h
new file mode 100644
index 000000000000..df5923d58041
--- /dev/null
+++ b/src/soc/qualcomm/sc7280/include/soc/display/edp_aux.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef _EDP_AUX_H
+#define _EDP_AUX_H
+
+#include <types.h>
+
+#define DP_AUX_I2C_WRITE		0x0
+#define DP_AUX_I2C_READ			0x1
+#define DP_AUX_I2C_STATUS		0x2
+#define DP_AUX_I2C_MOT			0x4
+#define DP_AUX_NATIVE_WRITE		0x8
+#define DP_AUX_NATIVE_READ		0x9
+#define REG_EDP_AUX_CTRL			(0x00000030)
+#define EDP_AUX_CTRL_ENABLE			(0x00000001)
+#define EDP_AUX_CTRL_RESET			(0x00000002)
+
+#define REG_EDP_AUX_DATA			(0x00000034)
+#define EDP_AUX_DATA_READ			(0x00000001)
+#define EDP_AUX_DATA_DATA__MASK			(0x0000ff00)
+#define EDP_AUX_DATA_DATA__SHIFT		(8)
+
+#define EDP_AUX_DATA_INDEX__MASK		(0x00ff0000)
+#define EDP_AUX_DATA_INDEX__SHIFT		(16)
+
+#define EDP_AUX_DATA_INDEX_WRITE		(0x80000000)
+
+#define REG_EDP_AUX_TRANS_CTRL			(0x00000038)
+#define EDP_AUX_TRANS_CTRL_I2C			(0x00000100)
+#define EDP_AUX_TRANS_CTRL_GO			(0x00000200)
+#define EDP_AUX_TRANS_CTRL_NO_SEND_ADDR		(0x00000400)
+#define EDP_AUX_TRANS_CTRL_NO_SEND_STOP		(0x00000800)
+
+#define REG_EDP_TIMEOUT_COUNT			(0x0000003C)
+#define REG_EDP_AUX_LIMITS			(0x00000040)
+#define REG_EDP_AUX_STATUS			(0x00000044)
+#define AUX_CMD_READ				(BIT(4))
+
+enum {
+	EDID_LENGTH = 128,
+	EDID_I2C_ADDR = 0x50,
+	EDID_EXTENSION_FLAG = 0x7e,
+};
+
+static inline uint32_t EDP_AUX_DATA_DATA(uint32_t val)
+{
+	return ((val) << EDP_AUX_DATA_DATA__SHIFT) & EDP_AUX_DATA_DATA__MASK;
+}
+
+static inline uint32_t EDP_AUX_DATA_INDEX(uint32_t val)
+{
+	return ((val) << EDP_AUX_DATA_INDEX__SHIFT) & EDP_AUX_DATA_INDEX__MASK;
+}
+
+void edp_aux_ctrl(int enable);
+int edp_read_edid(struct edid *out);
+ssize_t edp_aux_transfer(unsigned int address, u8 request, void *buffer, size_t size);
+
+#endif