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path: root/drivers/scsi/isci/host.c
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Diffstat (limited to 'drivers/scsi/isci/host.c')
-rw-r--r--drivers/scsi/isci/host.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 6ca9b26bb2fb..d4bf9c12ecd4 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -649,15 +649,13 @@ static void isci_host_start_complete(struct isci_host *ihost, enum sci_status co
int isci_host_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
- struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha;
+ struct sas_ha_struct *ha = SHOST_TO_SAS_HA(shost);
+ struct isci_host *ihost = ha->lldd_ha;
if (test_bit(IHOST_START_PENDING, &ihost->flags))
return 0;
- /* todo: use sas_flush_discovery once it is upstream */
- scsi_flush_work(shost);
-
- scsi_flush_work(shost);
+ sas_drain_work(ha);
dev_dbg(&ihost->pdev->dev,
"%s: ihost->status = %d, time = %ld\n",
@@ -1490,6 +1488,15 @@ sci_controller_set_interrupt_coalescence(struct isci_host *ihost,
static void sci_controller_ready_state_enter(struct sci_base_state_machine *sm)
{
struct isci_host *ihost = container_of(sm, typeof(*ihost), sm);
+ u32 val;
+
+ /* enable clock gating for power control of the scu unit */
+ val = readl(&ihost->smu_registers->clock_gating_control);
+ val &= ~(SMU_CGUCR_GEN_BIT(REGCLK_ENABLE) |
+ SMU_CGUCR_GEN_BIT(TXCLK_ENABLE) |
+ SMU_CGUCR_GEN_BIT(XCLK_ENABLE));
+ val |= SMU_CGUCR_GEN_BIT(IDLE_ENABLE);
+ writel(val, &ihost->smu_registers->clock_gating_control);
/* set the default interrupt coalescence number and timeout value. */
sci_controller_set_interrupt_coalescence(ihost, 0, 0);