Merge branch 'next' into for-linus

Prepare input updates for 7.1 merge window.

2 files changed, 51 insertions, 18 deletions

diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h
index 7f136de4b73e..971d53349b6f 100644
--- a/include/linux/i3c/device.h
+++ b/include/linux/i3c/device.h
@@ -25,9 +25,9 @@
  * @I3C_ERROR_M2: M2 error
  *
  * These are the standard error codes as defined by the I3C specification.
- * When -EIO is returned by the i3c_device_do_priv_xfers() or
+ * When -EIO is returned by the i3c_device_do_i3c_xfers() or
  * i3c_device_send_hdr_cmds() one can check the error code in
- * &struct_i3c_priv_xfer.err or &struct i3c_hdr_cmd.err to get a better idea of
+ * &struct_i3c_xfer.err or &struct i3c_hdr_cmd.err to get a better idea of
  * what went wrong.
  *
  */
@@ -39,20 +39,25 @@ enum i3c_error_code {
 };
 
 /**
- * enum i3c_hdr_mode - HDR mode ids
+ * enum i3c_xfer_mode - I3C xfer mode ids
  * @I3C_HDR_DDR: DDR mode
  * @I3C_HDR_TSP: TSP mode
  * @I3C_HDR_TSL: TSL mode
+ * @I3C_SDR: SDR mode (NOT HDR mode)
  */
-enum i3c_hdr_mode {
-	I3C_HDR_DDR,
-	I3C_HDR_TSP,
-	I3C_HDR_TSL,
+enum i3c_xfer_mode {
+	/* The below 3 value (I3C_HDR*) must match GETCAP1 Byte bit position */
+	I3C_HDR_DDR = 0,
+	I3C_HDR_TSP = 1,
+	I3C_HDR_TSL = 2,
+	/* Use for default SDR transfer mode */
+	I3C_SDR = 31,
 };
 
 /**
- * struct i3c_priv_xfer - I3C SDR private transfer
+ * struct i3c_xfer - I3C data transfer
  * @rnw: encodes the transfer direction. true for a read, false for a write
+ * @cmd: Read/Write command in HDR mode, read: 0x80 - 0xff, write: 0x00 - 0x7f
  * @len: transfer length in bytes of the transfer
  * @actual_len: actual length in bytes are transferred by the controller
  * @data: input/output buffer
@@ -60,8 +65,11 @@ enum i3c_hdr_mode {
  * @data.out: output buffer. Must point to a DMA-able buffer
  * @err: I3C error code
  */
-struct i3c_priv_xfer {
-	u8 rnw;
+struct i3c_xfer {
+	union {
+		u8 rnw;
+		u8 cmd;
+	};
 	u16 len;
 	u16 actual_len;
 	union {
@@ -297,9 +305,23 @@ static __always_inline void i3c_i2c_driver_unregister(struct i3c_driver *i3cdrv,
 		      i3c_i2c_driver_unregister,	\
 		      __i2cdrv)
 
-int i3c_device_do_priv_xfers(struct i3c_device *dev,
-			     struct i3c_priv_xfer *xfers,
-			     int nxfers);
+#if IS_ENABLED(CONFIG_I3C)
+int i3c_device_do_xfers(struct i3c_device *dev, struct i3c_xfer *xfers,
+			int nxfers, enum i3c_xfer_mode mode);
+u32 i3c_device_get_supported_xfer_mode(struct i3c_device *dev);
+#else
+static inline int
+i3c_device_do_xfers(struct i3c_device *dev, struct i3c_xfer *xfers,
+		    int nxfers, enum i3c_xfer_mode mode)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline u32 i3c_device_get_supported_xfer_mode(struct i3c_device *dev)
+{
+	return 0;
+}
+#endif
 
 int i3c_device_do_setdasa(struct i3c_device *dev);
 
diff --git a/include/linux/i3c/master.h b/include/linux/i3c/master.h
index c52a82dd79a6..592b646f6134 100644
--- a/include/linux/i3c/master.h
+++ b/include/linux/i3c/master.h
@@ -417,8 +417,8 @@ struct i3c_bus {
  *		      all CCC commands are supported.
  * @send_ccc_cmd: send a CCC command
  *		  This method is mandatory.
- * @priv_xfers: do one or several private I3C SDR transfers
- *		This method is mandatory.
+ * @i3c_xfers: do one or several I3C SDR or HDR transfers.
+ *	       This method is mandatory.
  * @attach_i2c_dev: called every time an I2C device is attached to the bus.
  *		    This is a good place to attach master controller specific
  *		    data to I2C devices.
@@ -462,6 +462,8 @@ struct i3c_bus {
  * @enable_hotjoin: enable hot join event detect.
  * @disable_hotjoin: disable hot join event detect.
  * @set_speed: adjust I3C open drain mode timing.
+ * @set_dev_nack_retry: configure device NACK retry count for the master
+ *                      controller.
  */
 struct i3c_master_controller_ops {
 	int (*bus_init)(struct i3c_master_controller *master);
@@ -474,9 +476,9 @@ struct i3c_master_controller_ops {
 				 const struct i3c_ccc_cmd *cmd);
 	int (*send_ccc_cmd)(struct i3c_master_controller *master,
 			    struct i3c_ccc_cmd *cmd);
-	int (*priv_xfers)(struct i3c_dev_desc *dev,
-			  struct i3c_priv_xfer *xfers,
-			  int nxfers);
+	int (*i3c_xfers)(struct i3c_dev_desc *dev,
+			 struct i3c_xfer *xfers,
+			 int nxfers, enum i3c_xfer_mode mode);
 	int (*attach_i2c_dev)(struct i2c_dev_desc *dev);
 	void (*detach_i2c_dev)(struct i2c_dev_desc *dev);
 	int (*i2c_xfers)(struct i2c_dev_desc *dev,
@@ -491,6 +493,8 @@ struct i3c_master_controller_ops {
 	int (*enable_hotjoin)(struct i3c_master_controller *master);
 	int (*disable_hotjoin)(struct i3c_master_controller *master);
 	int (*set_speed)(struct i3c_master_controller *master, enum i3c_open_drain_speed speed);
+	int (*set_dev_nack_retry)(struct i3c_master_controller *master,
+				  unsigned long dev_nack_retry_cnt);
 };
 
 /**
@@ -505,6 +509,8 @@ struct i3c_master_controller_ops {
  * @secondary: true if the master is a secondary master
  * @init_done: true when the bus initialization is done
  * @hotjoin: true if the master support hotjoin
+ * @rpm_allowed: true if Runtime PM allowed
+ * @rpm_ibi_allowed: true if IBI and Hot-Join allowed while runtime suspended
  * @boardinfo.i3c: list of I3C  boardinfo objects
  * @boardinfo.i2c: list of I2C boardinfo objects
  * @boardinfo: board-level information attached to devices connected on the bus
@@ -514,6 +520,7 @@ struct i3c_master_controller_ops {
  *	in a thread context. Typical examples are Hot Join processing which
  *	requires taking the bus lock in maintenance, which in turn, can only
  *	be done from a sleep-able context
+ * @dev_nack_retry_count: retry count when slave device nack
  *
  * A &struct i3c_master_controller has to be registered to the I3C subsystem
  * through i3c_master_register(). None of &struct i3c_master_controller fields
@@ -528,12 +535,15 @@ struct i3c_master_controller {
 	unsigned int secondary : 1;
 	unsigned int init_done : 1;
 	unsigned int hotjoin: 1;
+	unsigned int rpm_allowed: 1;
+	unsigned int rpm_ibi_allowed: 1;
 	struct {
 		struct list_head i3c;
 		struct list_head i2c;
 	} boardinfo;
 	struct i3c_bus bus;
 	struct workqueue_struct *wq;
+	unsigned int dev_nack_retry_count;
 };
 
 /**
@@ -595,6 +605,7 @@ int i3c_master_get_free_addr(struct i3c_master_controller *master,
 int i3c_master_add_i3c_dev_locked(struct i3c_master_controller *master,
 				  u8 addr);
 int i3c_master_do_daa(struct i3c_master_controller *master);
+int i3c_master_do_daa_ext(struct i3c_master_controller *master, bool rstdaa);
 struct i3c_dma *i3c_master_dma_map_single(struct device *dev, void *ptr,
 					  size_t len, bool force_bounce,
 					  enum dma_data_direction dir);