firmware: zynqmp: Add support to handle IPI CRC failure

Added new PM error code XST_PM_INVALID_CRC to handle CRC validation failure
during IPI communication.

Co-developed-by: Naman Trivedi Manojbhai <naman.trivedimanojbhai@amd.com>
Signed-off-by: Naman Trivedi Manojbhai <naman.trivedimanojbhai@amd.com>
Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Link: https://lore.kernel.org/r/20231129112713.22718-6-jay.buddhabhatti@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 077b49e..caa0952 100644 (file)
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -103,6 +103,7 @@ static int zynqmp_pm_ret_code(u32 ret_status)
        case XST_PM_INTERNAL:
        case XST_PM_CONFLICT:
        case XST_PM_INVALID_NODE:
+       case XST_PM_INVALID_CRC:
        default:
                return -EINVAL;
        }

diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index ec1800c..6b48294 100644 (file)
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -174,6 +174,7 @@ enum pm_ret_status {
        XST_PM_SUCCESS = 0,
        XST_PM_INVALID_VERSION = 4,
        XST_PM_NO_FEATURE = 19,
+       XST_PM_INVALID_CRC = 301,
        XST_PM_INTERNAL = 2000,
        XST_PM_CONFLICT = 2001,
        XST_PM_NO_ACCESS = 2002,