plat: xilinx: Mask unnecessary bytes of return error code
Versal firmware adds extra error codes along with PM error codes
while sending response to driver. This makes incorrect error
identification at driver side.
To fix this, mask the unnecessary error bytes before sending the
error code to the driver.
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I18c2f3bd2d067e91344852c2f0c1bafea0e6eb23
diff --git a/plat/xilinx/common/pm_service/pm_ipi.c b/plat/xilinx/common/pm_service/pm_ipi.c
index c83d25b..5dcceae 100644
--- a/plat/xilinx/common/pm_service/pm_ipi.c
+++ b/plat/xilinx/common/pm_service/pm_ipi.c
@@ -18,6 +18,8 @@
#include "pm_ipi.h"
+#define ERROR_CODE_MASK 0xFFFFU
+
DEFINE_BAKERY_LOCK(pm_secure_lock);
/**
@@ -230,7 +232,7 @@
if (ret != PM_RET_SUCCESS)
goto unlock;
- ret = pm_ipi_buff_read(proc, value, count);
+ ret = ERROR_CODE_MASK & (pm_ipi_buff_read(proc, value, count));
unlock:
bakery_lock_release(&pm_secure_lock);