[PATCH 06/17] i3c: renesas: Reset the controller on resume

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

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

Reset the controller on resume after enabling the clocks to follow the
same sequence as in probe and avoid potential ordering related failures.

Fixes: e7218986319b ("i3c: renesas: Add suspend/resume support")
Cc: stable@vger.kernel.org
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---
 drivers/i3c/master/renesas-i3c.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/i3c/master/renesas-i3c.c b/drivers/i3c/master/renesas-i3c.c
index 5174a390d668..2f3c6ddf75c0 100644
--- a/drivers/i3c/master/renesas-i3c.c
+++ b/drivers/i3c/master/renesas-i3c.c
@@ -1464,6 +1464,10 @@ static int renesas_i3c_resume_noirq(struct device *dev)
 	if (ret)
 		goto err_presetn;
 
+	ret = renesas_i3c_reset(i3c);
+	if (ret)
+		goto err_clks_disable;
+
 	/* Re-store I3C registers value. */
 	renesas_writel(i3c->regs, STDBR, i3c->i3c_STDBR);
 	renesas_writel(i3c->regs, EXTBR, i3c->extbr);
@@ -1483,6 +1487,8 @@ static int renesas_i3c_resume_noirq(struct device *dev)
 
 	return 0;
 
+err_clks_disable:
+	clk_bulk_disable(i3c->num_clks, i3c->clks);
 err_presetn:
 	reset_control_assert(i3c->presetn);
 err_tresetn:
-- 
2.43.0