[PATCH v3 5/7] arm_scmi: pinctrl: allow PINCTRL_REQUEST to return EOPNOTSUPP
From: Dan Carpenter <hidden>
Date: 2026-03-11 19:39:08
Also in:
arm-scmi, linux-gpio, lkml
Subsystem:
system control & power/management interface (scpi/scmi) message protocol drivers, the rest · Maintainers:
Sudeep Holla, Linus Torvalds
The SCMI protocol specification says that the PINCTRL_REQUEST and PINCTRL_RELEASE commands are optional. So if the SCMI server returns -EOPNOTSUPP, then treat that as success and continue. Signed-off-by: Dan Carpenter <redacted> --- drivers/firmware/arm_scmi/pinctrl.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/firmware/arm_scmi/pinctrl.c b/drivers/firmware/arm_scmi/pinctrl.c
index a020e23d7c49..42cb1aef1fe1 100644
--- a/drivers/firmware/arm_scmi/pinctrl.c
+++ b/drivers/firmware/arm_scmi/pinctrl.c@@ -578,6 +578,8 @@ static int scmi_pinctrl_request_free(const struct scmi_protocol_handle *ph, tx->flags = cpu_to_le32(type); ret = ph->xops->do_xfer(ph, t); + if (ret == -EOPNOTSUPP) + ret = 0; ph->xops->xfer_put(ph, t); return ret;
--
2.51.0