firmware: zynqmp: Add support to handle IPI CRC failure

jbuddhab · gregkh · commit 5dac2a98f654 · 2023-12-07T11:18:29.000+09:00
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
@@ -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
@@ -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,

Original file line number	Diff line number	Diff line change
`@@ -103,6 +103,7 @@ static int zynqmp_pm_ret_code(u32 ret_status)`
`103`	`103`	`case XST_PM_INTERNAL:`
`104`	`104`	`case XST_PM_CONFLICT:`
`105`	`105`	`case XST_PM_INVALID_NODE:`
	`106`	`+ case XST_PM_INVALID_CRC:`
`106`	`107`	`default:`
`107`	`108`	`return -EINVAL;`
`108`	`109`	`}`