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i3c: renesas: Clean DATBAS register on detach

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The controller uses DATBAS registers on TX/RX logic. Clean the DATBAS
register for the detached I3C device to avoid issues.

Fixes: d028219a9f ("i3c: master: Add basic driver for the Renesas I3C controller")
Cc: stable@vger.kernel.org
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://patch.msgid.link/20260713130545.568657-8-claudiu.beznea+renesas@tuxon.dev
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Claudiu Beznea 2026-07-13 16:05:35 +03:00 committed by Alexandre Belloni
parent fbf26154c4
commit 797ed83c0c
1 changed files with 2 additions and 0 deletions
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2
drivers/i3c/master/renesas-i3c.c
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@ -937,6 +937,8 @@ static void renesas_i3c_detach_i3c_dev(struct i3c_dev_desc *dev)
struct i3c_master_controller *m = i3c_dev_get_master(dev);
struct renesas_i3c *i3c = to_renesas_i3c(m);
renesas_writel(i3c->regs, DATBAS(data->index), 0);
i3c_dev_set_master_data(dev, NULL);
i3c->addrs[data->index] = 0;
i3c->free_pos |= BIT(data->index);