linux-kernel - [PATCH 2/2] i3c: master: cleanup callback .priv

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Message-Id: <20251027-i3c_xfer_cleanup_master-v1-2-e9bfcb083a38@nxp.com>
Date: Mon, 27 Oct 2025 16:57:40 -0400
From: Frank Li <Frank.Li@....com>
To: Jorge Marques <jorge.marques@...log.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>, 
 Przemysław Gaj <pgaj@...ence.com>, 
 Wolfram Sang <wsa+renesas@...g-engineering.com>, 
 Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
Cc: linux-i3c@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH 2/2] i3c: master: cleanup callback .priv_xfers()

Remove the .priv_xfers() callback from the framework after all master
controller drivers have switched to use the new .i3c_xfers() callback.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 drivers/i3c/master.c       | 17 ++---------------
 include/linux/i3c/master.h |  6 ------
 2 files changed, 2 insertions(+), 21 deletions(-)

diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index 16a480865ff4a28857f1ea6df33dbe4a66d1468c..ad9714247161121a7de2c97ecf8302e58f6e7957 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -2821,14 +2821,10 @@ EXPORT_SYMBOL_GPL(i3c_generic_ibi_recycle_slot);
 
 static int i3c_master_check_ops(const struct i3c_master_controller_ops *ops)
 {
-	if (!ops || !ops->bus_init ||
+	if (!ops || !ops->bus_init || !ops->i3c_xfers ||
 	    !ops->send_ccc_cmd || !ops->do_daa || !ops->i2c_xfers)
 		return -EINVAL;
 
-	/* Must provide one of priv_xfers (SDR only) or i3c_xfers (all modes) */
-	if (!ops->priv_xfers && !ops->i3c_xfers)
-		return -EINVAL;
-
 	if (ops->request_ibi &&
 	    (!ops->enable_ibi || !ops->disable_ibi || !ops->free_ibi ||
 	     !ops->recycle_ibi_slot))
@@ -3033,16 +3029,7 @@ int i3c_dev_do_xfers_locked(struct i3c_dev_desc *dev, struct i3c_xfer *xfers,
 	if (mode != I3C_SDR && !(master->this->info.hdr_cap & BIT(mode)))
 		return -EOPNOTSUPP;
 
-	if (master->ops->i3c_xfers)
-		return master->ops->i3c_xfers(dev, xfers, nxfers, mode);
-
-	if (!master->ops->priv_xfers)
-		return -EOPNOTSUPP;
-
-	if (mode != I3C_SDR)
-		return -EINVAL;
-
-	return master->ops->priv_xfers(dev, xfers, nxfers);
+	return master->ops->i3c_xfers(dev, xfers, nxfers, mode);
 }
 
 int i3c_dev_disable_ibi_locked(struct i3c_dev_desc *dev)
diff --git a/include/linux/i3c/master.h b/include/linux/i3c/master.h
index 7e22f9d2a2ca3f4ab808db50f809efd192c795cd..028696abd61abc4bde73a04a1f291db874f2292c 100644
--- a/include/linux/i3c/master.h
+++ b/include/linux/i3c/master.h
@@ -417,8 +417,6 @@ 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.
  * @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.
@@ -474,10 +472,6 @@ 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);
-	/* Depreciated, please use i3c_xfers() */
-	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_priv_xfer *xfers,
 			 int nxfers, enum i3c_xfer_mode mode);

-- 
2.34.1