1 files changed, 109 insertions, 0 deletions
diff --git a/include/linux/soundwire/sdw_amd.h b/include/linux/soundwire/sdw_amd.h
new file mode 100644
index 000000000000..ceecad74aef9
--- /dev/null
+++ b/include/linux/soundwire/sdw_amd.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved.
+ */
+
+#ifndef __SDW_AMD_H
+#define __SDW_AMD_H
+
+#include <linux/soundwire/sdw.h>
+
+/* AMD pm_runtime quirk definitions */
+
+/*
+ * Force the clock to stop(ClockStopMode0) when suspend callback
+ * is invoked.
+ */
+#define AMD_SDW_CLK_STOP_MODE		1
+
+/*
+ * Stop the bus when runtime suspend/system level suspend callback
+ * is invoked. If set, a complete bus reset and re-enumeration will
+ * be performed when the bus restarts. In-band wake interrupts are
+ * not supported in this mode.
+ */
+#define AMD_SDW_POWER_OFF_MODE		2
+#define ACP_SDW0	0
+#define ACP_SDW1	1
+
+struct acp_sdw_pdata {
+	u16 instance;
+	/* mutex to protect acp common register access */
+	struct mutex *acp_sdw_lock;
+};
+
+struct sdw_manager_reg_mask {
+	u32 sw_pad_enable_mask;
+	u32 sw_pad_pulldown_mask;
+	u32 acp_sdw_intr_mask;
+};
+
+/**
+ * struct sdw_amd_dai_runtime: AMD sdw dai runtime  data
+ *
+ * @name: SoundWire stream name
+ * @stream: stream runtime
+ * @bus: Bus handle
+ * @stream_type: Stream type
+ */
+struct sdw_amd_dai_runtime {
+	char *name;
+	struct sdw_stream_runtime *stream;
+	struct sdw_bus *bus;
+	enum sdw_stream_type stream_type;
+};
+
+/**
+ * struct amd_sdw_manager - amd manager driver context
+ * @bus: bus handle
+ * @dev: linux device
+ * @mmio: SoundWire registers mmio base
+ * @acp_mmio: acp registers mmio base
+ * @reg_mask: register mask structure per manager instance
+ * @amd_sdw_irq_thread: SoundWire manager irq workqueue
+ * @amd_sdw_work: peripheral status work queue
+ * @probe_work: SoundWire manager probe workqueue
+ * @acp_sdw_lock: mutex to protect acp share register access
+ * @status: peripheral devices status array
+ * @num_din_ports: number of input ports
+ * @num_dout_ports: number of output ports
+ * @cols_index: Column index in frame shape
+ * @rows_index: Rows index in frame shape
+ * @instance: SoundWire manager instance
+ * @quirks: SoundWire manager quirks
+ * @wake_en_mask: wake enable mask per SoundWire manager
+ * @clk_stopped: flag set to true when clock is stopped
+ * @power_mode_mask: flag interprets amd SoundWire manager power mode
+ * @dai_runtime_array: dai runtime array
+ */
+struct amd_sdw_manager {
+	struct sdw_bus bus;
+	struct device *dev;
+
+	void __iomem *mmio;
+	void __iomem *acp_mmio;
+
+	struct sdw_manager_reg_mask *reg_mask;
+	struct work_struct amd_sdw_irq_thread;
+	struct work_struct amd_sdw_work;
+	struct work_struct probe_work;
+	/* mutex to protect acp common register access */
+	struct mutex *acp_sdw_lock;
+
+	enum sdw_slave_status status[SDW_MAX_DEVICES + 1];
+
+	int num_din_ports;
+	int num_dout_ports;
+
+	int cols_index;
+	int rows_index;
+
+	u32 instance;
+	u32 quirks;
+	u32 wake_en_mask;
+	u32 power_mode_mask;
+	bool clk_stopped;
+
+	struct sdw_amd_dai_runtime **dai_runtime_array;
+};
+#endif