[PATCH v1 3/6] peci: Add support for PECI CC 0x83 retry condition

[Changhuang Liang <changhuang.liang@starfivetech.com>]

Some PECI client devices may return completion code 0x83 (CMD_TIMEOUT)
under certain conditions, which is not currently handled by the driver.

Add PECI_CC_CMD_TIMEOUT definition and map it to -EAGAIN so that the
request will be retried appropriately, similar to other retryable
completion codes (0x80, 0x81, 0x82).

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
---
 drivers/peci/request.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/peci/request.c b/drivers/peci/request.c
index db2cc30a42a4..2bf8b6a255d4 100644
--- a/drivers/peci/request.c
+++ b/drivers/peci/request.c
@@ -71,6 +71,7 @@
 #define PECI_CC_NEED_RETRY			0x80
 #define PECI_CC_OUT_OF_RESOURCE			0x81
 #define PECI_CC_UNAVAIL_RESOURCE		0x82
+#define PECI_CC_CMD_TIMEOUT			0x83
 #define PECI_CC_INVALID_REQ			0x90
 #define PECI_CC_MCA_ERROR			0x91
 #define PECI_CC_CATASTROPHIC_MCA_ERROR		0x93
@@ -112,6 +113,7 @@ int peci_request_status(struct peci_request *req)
 	case PECI_CC_NEED_RETRY:
 	case PECI_CC_OUT_OF_RESOURCE:
 	case PECI_CC_UNAVAIL_RESOURCE:
+	case PECI_CC_CMD_TIMEOUT:
 		return -EAGAIN;
 	case PECI_CC_INVALID_REQ:
 		return -EINVAL;
-- 
2.25.1