mfd: rz-mtu3: Make reset optional

The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs do not have a
reset line for the MTU3 block.

Prepare for them by making it optional.

Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Link: https://patch.msgid.link/20260527145606.136536-5-cosmin-gabriel.tanislav.xa@renesas.com
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/rz-mtu3.c b/drivers/mfd/rz-mtu3.c
index f64c748d6ce4f0188d9cf8505fa1c942d14c448b..3fa7dfe71386efc556dc2dab64216b1979b80d7f 100644 (file)
--- a/drivers/mfd/rz-mtu3.c
+++ b/drivers/mfd/rz-mtu3.c
@@ -331,7 +331,7 @@ static int rz_mtu3_probe(struct platform_device *pdev)
        if (IS_ERR(priv->mmio))
                return PTR_ERR(priv->mmio);
 
-       rstc = devm_reset_control_get_exclusive_deasserted(dev, NULL);
+       rstc = devm_reset_control_get_optional_exclusive_deasserted(dev, NULL);
        if (IS_ERR(rstc))
                return PTR_ERR(rstc);