[PATCH v4 10/16] i3c: renesas: Follow a unified pattern for transfer and command initialization

[Claudiu Beznea <claudiu.beznea@kernel.org>]

From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

Follow a unified pattern for transfer and command initialization across
the driver. This keeps the code cleaner and easier to follow. Also, in
some cases the I3C device was enabled before the transfer data structure
was even allocated.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---

Changes in v4:
- none

Changes in v3:
- none

Changes in v2:
- collected tags

 drivers/i3c/master/renesas-i3c.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/i3c/master/renesas-i3c.c b/drivers/i3c/master/renesas-i3c.c
index fa9c15381ed6..883be4326e43 100644
--- a/drivers/i3c/master/renesas-i3c.c
+++ b/drivers/i3c/master/renesas-i3c.c
@@ -726,6 +726,10 @@ static int renesas_i3c_daa(struct i3c_master_controller *m)
 	if (!xfer)
 		return -ENOMEM;
 
+	init_completion(&xfer->comp);
+	cmd = xfer->cmds;
+	cmd->rx_count = 0;
+
 	/* Enable I3C bus. */
 	renesas_i3c_bus_enable(m, true);
 
@@ -756,10 +760,6 @@ static int renesas_i3c_daa(struct i3c_master_controller *m)
 		renesas_writel(i3c->regs, DATBAS(pos), datbas_dvdyad_with_parity(ret));
 	}
 
-	init_completion(&xfer->comp);
-	cmd = xfer->cmds;
-	cmd->rx_count = 0;
-
 	if (i3c->resuming) {
 		/* Run ENTDAA for all the I3C devices on the bus, if resuming. */
 		ret = first_i3c_pos;
@@ -878,13 +878,13 @@ static int renesas_i3c_send_ccc_cmd(struct i3c_master_controller *m,
 	if (!xfer)
 		return -ENOMEM;
 
-	renesas_i3c_bus_enable(m, true);
-
 	init_completion(&xfer->comp);
 	cmd = xfer->cmds;
 	cmd->rnw = ccc->rnw;
 	cmd->cmd0 = 0;
 
+	renesas_i3c_bus_enable(m, true);
+
 	/* Calculate the command descriptor. */
 	switch (ccc->id) {
 	case I3C_CCC_SETDASA:
@@ -934,15 +934,15 @@ static int renesas_i3c_i3c_xfers(struct i3c_dev_desc *dev, struct i3c_xfer *i3c_
 	struct renesas_i3c_i2c_dev_data *data = i3c_dev_get_master_data(dev);
 	int i;
 
-	/* Enable I3C bus. */
-	renesas_i3c_bus_enable(m, true);
-
 	struct renesas_i3c_xfer *xfer __free(kfree) = renesas_i3c_alloc_xfer(i3c, 1);
 	if (!xfer)
 		return -ENOMEM;
 
 	init_completion(&xfer->comp);
 
+	/* Enable I3C bus. */
+	renesas_i3c_bus_enable(m, true);
+
 	for (i = 0; i < i3c_nxfers; i++) {
 		struct renesas_i3c_cmd *cmd = xfer->cmds;
 
@@ -1068,12 +1068,12 @@ static int renesas_i3c_i2c_xfers(struct i2c_dev_desc *dev,
 	if (!xfer)
 		return -ENOMEM;
 
-	renesas_i3c_bus_enable(m, false);
-
 	init_completion(&xfer->comp);
 	xfer->is_i2c_xfer = true;
 	cmd = xfer->cmds;
 
+	renesas_i3c_bus_enable(m, false);
+
 	if (!(renesas_readl(i3c->regs, BCST) & BCST_BFREF)) {
 		cmd->err = -EBUSY;
 		return cmd->err;
-- 
2.43.0