firmware: arm_scmi: Rename .clear_notification() transport_ops

SCMI transport operation .clear_notification() is indeed a generic method
to clear the channel in a transport dependent way, as such it could be a
useful helper also in other contexts.

Rename such method as .clear_channel(), renaming accordingly also its
already existent call-sites.

No functional change.

Link: https://lore.kernel.org/r/20200420152315.21008-2-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

drivers/firmware/arm_scmi/common.h

@@ -179,7 +179,7 @@ struct scmi_chan_info {
  * @mark_txdone: Callback to mark tx as done
  * @fetch_response: Callback to fetch response
  * @fetch_notification: Callback to fetch notification
- * @clear_notification: Callback to clear a pending notification
+ * @clear_channel: Callback to clear a channel
  * @poll_done: Callback to poll transfer status
  */
 struct scmi_transport_ops {
@@ -194,7 +194,7 @@ struct scmi_transport_ops {
 			       struct scmi_xfer *xfer);
 	void (*fetch_notification)(struct scmi_chan_info *cinfo,
 				   size_t max_len, struct scmi_xfer *xfer);
-	void (*clear_notification)(struct scmi_chan_info *cinfo);
+	void (*clear_channel)(struct scmi_chan_info *cinfo);
 	bool (*poll_done)(struct scmi_chan_info *cinfo, struct scmi_xfer *xfer);
 };
 
@@ -232,6 +232,6 @@ void shmem_fetch_response(struct scmi_shared_mem __iomem *shmem,
 			  struct scmi_xfer *xfer);
 void shmem_fetch_notification(struct scmi_shared_mem __iomem *shmem,
 			      size_t max_len, struct scmi_xfer *xfer);
-void shmem_clear_notification(struct scmi_shared_mem __iomem *shmem);
+void shmem_clear_channel(struct scmi_shared_mem __iomem *shmem);
 bool shmem_poll_done(struct scmi_shared_mem __iomem *shmem,
 		     struct scmi_xfer *xfer);

drivers/firmware/arm_scmi/driver.c

@@ -213,7 +213,7 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo, u32 msg_hdr)
 	if (IS_ERR(xfer)) {
 		dev_err(dev, "failed to get free message slot (%ld)\n",
 			PTR_ERR(xfer));
-		info->desc->ops->clear_notification(cinfo);
+		info->desc->ops->clear_channel(cinfo);
 		return;
 	}
 
@@ -228,7 +228,7 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo, u32 msg_hdr)
 
 	__scmi_xfer_put(minfo, xfer);
 
-	info->desc->ops->clear_notification(cinfo);
+	info->desc->ops->clear_channel(cinfo);
 }
 
 static void scmi_handle_response(struct scmi_chan_info *cinfo,

drivers/firmware/arm_scmi/mailbox.c

@@ -166,11 +166,11 @@ static void mailbox_fetch_notification(struct scmi_chan_info *cinfo,
 	shmem_fetch_notification(smbox->shmem, max_len, xfer);
 }
 
-static void mailbox_clear_notification(struct scmi_chan_info *cinfo)
+static void mailbox_clear_channel(struct scmi_chan_info *cinfo)
 {
 	struct scmi_mailbox *smbox = cinfo->transport_info;
 
-	shmem_clear_notification(smbox->shmem);
+	shmem_clear_channel(smbox->shmem);
 }
 
 static bool
@@ -189,7 +189,7 @@ static struct scmi_transport_ops scmi_mailbox_ops = {
 	.mark_txdone = mailbox_mark_txdone,
 	.fetch_response = mailbox_fetch_response,
 	.fetch_notification = mailbox_fetch_notification,
-	.clear_notification = mailbox_clear_notification,
+	.clear_channel = mailbox_clear_channel,
 	.poll_done = mailbox_poll_done,
 };
 

drivers/firmware/arm_scmi/shmem.c

@@ -77,7 +77,7 @@ void shmem_fetch_notification(struct scmi_shared_mem __iomem *shmem,
 	memcpy_fromio(xfer->rx.buf, shmem->msg_payload, xfer->rx.len);
 }
 
-void shmem_clear_notification(struct scmi_shared_mem __iomem *shmem)
+void shmem_clear_channel(struct scmi_shared_mem __iomem *shmem)
 {
 	iowrite32(SCMI_SHMEM_CHAN_STAT_CHANNEL_FREE, &shmem->channel_status);
 }