[PATCH v13 01/25] firmware: arm_scmi: Add new SCMIv4.0 error codes definitions

[Cristian Marussi]

SCMIv4.0 introduces a couple of new possible protocol error codes: add the
needed definitions and mappings to Linux error values.

Note that SCMI_PARTIAL_ERROR has to be handled specially, so it needs to be
distinguishable.

Reviewed-by: David Hildenbrand (Arm) <david at kernel.org>
Signed-off-by: Cristian Marussi <cristian.marussi at arm.com>
---
v12 --> v13
 - use EBADMSG to map SCMI_PARTIAL_ERROR
v4 --> v5
 - map SCMI_ERR_IN_USE to EBUSY as natural
---
 drivers/firmware/arm_scmi/common.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h
index fe8c22cfb9f7..678258bc7a93 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -48,6 +48,8 @@ enum scmi_error_codes {
 	SCMI_ERR_GENERIC = -8,	/* Generic Error */
 	SCMI_ERR_HARDWARE = -9,	/* Hardware Error */
 	SCMI_ERR_PROTOCOL = -10,/* Protocol Error */
+	SCMI_ERR_IN_USE = -11,  /* In Use Error */
+	SCMI_ERR_PARTIAL = -12, /* Partial Error */
 };
 
 static const int scmi_linux_errmap[] = {
@@ -63,6 +65,8 @@ static const int scmi_linux_errmap[] = {
 	-EIO,			/* SCMI_ERR_GENERIC */
 	-EREMOTEIO,		/* SCMI_ERR_HARDWARE */
 	-EPROTO,		/* SCMI_ERR_PROTOCOL */
+	-EBUSY,			/* SCMI_ERR_IN_USE */
+	-EBADMSG,		/* SCMI_ERR_PARTIAL */
 };
 
 static inline int scmi_to_linux_errno(int errno)
-- 
2.54.0