diff options
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_sis.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_sis.c b/drivers/scsi/smartpqi/smartpqi_sis.c index afc27adf68e9..2b99b6e9cd71 100644 --- a/drivers/scsi/smartpqi/smartpqi_sis.c +++ b/drivers/scsi/smartpqi/smartpqi_sis.c @@ -194,6 +194,7 @@ static int sis_send_sync_cmd(struct pqi_ctrl_info *ctrl_info, /* Disable doorbell interrupts by masking all interrupts. */ writel(~0, ®isters->sis_interrupt_mask); + usleep_range(1000, 2000); /* * Force the completion of the interrupt mask register write before @@ -383,6 +384,7 @@ static int sis_wait_for_doorbell_bit_to_clear( static inline int sis_set_doorbell_bit(struct pqi_ctrl_info *ctrl_info, u32 bit) { writel(bit, &ctrl_info->registers->sis_host_to_ctrl_doorbell); + usleep_range(1000, 2000); return sis_wait_for_doorbell_bit_to_clear(ctrl_info, bit); } @@ -423,6 +425,7 @@ int sis_reenable_sis_mode(struct pqi_ctrl_info *ctrl_info) void sis_write_driver_scratch(struct pqi_ctrl_info *ctrl_info, u32 value) { writel(value, &ctrl_info->registers->sis_driver_scratch); + usleep_range(1000, 2000); } u32 sis_read_driver_scratch(struct pqi_ctrl_info *ctrl_info) |