diff mbox series

[v2,4/4] soundwire: cadence: further simplify low-level xfer_msg_defer() callback

Message ID 20230119073211.85979-5-yung-chuan.liao@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series soundwire: better error handling in deferred transfers | expand

Commit Message

Bard Liao Jan. 19, 2023, 7:32 a.m. UTC 
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

The message pointer is already stored in the bus->defer structure, not
need to pass it as an argument.

Suggested-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
---
 drivers/soundwire/bus.c            | 2 +-
 drivers/soundwire/cadence_master.c | 5 +++--
 drivers/soundwire/cadence_master.h | 2 +-
 include/linux/soundwire/sdw.h      | 5 +++--
 4 files changed, 8 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index fc192d0c61e7..ed94c92bc575 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -237,7 +237,7 @@  static inline int do_transfer_defer(struct sdw_bus *bus,
 	init_completion(&defer->complete);
 
 	for (i = 0; i <= retry; i++) {
-		resp = bus->ops->xfer_msg_defer(bus, msg);
+		resp = bus->ops->xfer_msg_defer(bus);
 		ret = find_response_code(resp);
 		/* if cmd is ok or ignored return */
 		if (ret == 0 || ret == -ENODATA)
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 2365395cb181..ece0ad89746f 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -749,10 +749,11 @@  cdns_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg)
 EXPORT_SYMBOL(cdns_xfer_msg);
 
 enum sdw_command_response
-cdns_xfer_msg_defer(struct sdw_bus *bus,
-		    struct sdw_msg *msg)
+cdns_xfer_msg_defer(struct sdw_bus *bus)
 {
 	struct sdw_cdns *cdns = bus_to_cdns(bus);
+	struct sdw_defer *defer = &bus->defer_msg;
+	struct sdw_msg *msg = defer->msg;
 	int cmd = 0, ret;
 
 	/* for defer only 1 message is supported */
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h
index 53029d22822d..63c58b9b1f59 100644
--- a/drivers/soundwire/cadence_master.h
+++ b/drivers/soundwire/cadence_master.h
@@ -187,7 +187,7 @@  enum sdw_command_response
 cdns_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg);
 
 enum sdw_command_response
-cdns_xfer_msg_defer(struct sdw_bus *bus, struct sdw_msg *msg);
+cdns_xfer_msg_defer(struct sdw_bus *bus);
 
 u32 cdns_read_ping_status(struct sdw_bus *bus);
 
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index fb2bd1524a26..86e320cf27b1 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -837,7 +837,8 @@  struct sdw_defer {
  * @read_prop: Read Master properties
  * @override_adr: Override value read from firmware (quirk for buggy firmware)
  * @xfer_msg: Transfer message callback
- * @xfer_msg_defer: Defer version of transfer message callback
+ * @xfer_msg_defer: Defer version of transfer message callback. The message is handled with the
+ * bus struct @sdw_defer
  * @reset_page_addr: Reset the SCP page address registers
  * @set_bus_conf: Set the bus configuration
  * @pre_bank_switch: Callback for pre bank switch
@@ -852,7 +853,7 @@  struct sdw_master_ops {
 	enum sdw_command_response (*xfer_msg)
 			(struct sdw_bus *bus, struct sdw_msg *msg);
 	enum sdw_command_response (*xfer_msg_defer)
-			(struct sdw_bus *bus, struct sdw_msg *msg);
+			(struct sdw_bus *bus);
 	enum sdw_command_response (*reset_page_addr)
 			(struct sdw_bus *bus, unsigned int dev_num);
 	int (*set_bus_conf)(struct sdw_bus *bus,