soc: xilinx: Add error message for invalid payload received from IPI callback.

payload[0] of response buffer of zynqmp_pm_get_callback_data()
contains valid payload or error code in case of error.

Added error message to inform user about the error code received in
payload[0].

Signed-off-by: Naman Trivedi Manojbhai <naman.trivedimanojbhai@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/85749bde3e71148533d31ea2092f4514ec347768.1701962639.git.michal.simek@amd.com

diff --git a/drivers/soc/xilinx/zynqmp_power.c b/drivers/soc/xilinx/zynqmp_power.c
index abcf7e883279525ef20d7325197b48e1ea2e6f4b..07d735b38b499681280fa17832afb53ba5b9e96f 100644 (file)
--- a/drivers/soc/xilinx/zynqmp_power.c
+++ b/drivers/soc/xilinx/zynqmp_power.c
@@ -86,6 +86,8 @@ static irqreturn_t zynqmp_pm_isr(int irq, void *data)
                        pr_err("%s Unsupported InitSuspendCb reason code %d\n",
                               __func__, payload[1]);
                }
+       } else {
+               pr_err("%s() Unsupported Callback %d\n", __func__, payload[0]);
        }
 
        return IRQ_HANDLED;