On some platforms, it may take up to 400ms for the ready bit to be set in a successful mailbox transaction. Set the timeout to 500ms to cover the worst case. Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx> --- drivers/platform/x86/intel/sdsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel/sdsi.c b/drivers/platform/x86/intel/sdsi.c index 9e0ea2cdd704..556e7c6dbb05 100644 --- a/drivers/platform/x86/intel/sdsi.c +++ b/drivers/platform/x86/intel/sdsi.c @@ -49,7 +49,7 @@ #define SDSI_MBOX_CMD_SUCCESS 0x40 #define SDSI_MBOX_CMD_TIMEOUT 0x80 -#define MBOX_TIMEOUT_US 2000 +#define MBOX_TIMEOUT_US 500000 #define MBOX_TIMEOUT_ACQUIRE_US 1000 #define MBOX_POLLING_PERIOD_US 100 #define MBOX_ACQUIRE_NUM_RETRIES 5 base-commit: 5b309e80f457ebb41770e0122766825a78cfc11b -- 2.34.1