[PATCH v5 2/5] scpi: Do not fail if get_capabilities is not implemented
Neil Armstrong
narmstrong at baylibre.com
Wed Oct 19 05:51:09 PDT 2016
On Amlogic SCPI legacy implementation, the GET_CAPABILITIES is not
supported, failover by using 0.0.0 version.
Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
---
drivers/firmware/arm_scpi.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/firmware/arm_scpi.c b/drivers/firmware/arm_scpi.c
index 2982bc7..9022336 100644
--- a/drivers/firmware/arm_scpi.c
+++ b/drivers/firmware/arm_scpi.c
@@ -783,6 +783,10 @@ static int scpi_init_versions(struct scpi_drvinfo *info)
info->protocol_version = le32_to_cpu(caps.protocol_version);
info->firmware_version = le32_to_cpu(caps.platform_version);
}
+ /* Ignore error if not implemented */
+ if (scpi_info->is_legacy && ret == -EOPNOTSUPP)
+ return 0;
+
return ret;
}
--
1.9.1
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