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-rw-r--r--drivers/scsi/ufs/ufshcd.c9
-rw-r--r--drivers/scsi/ufs/ufshcd.h1
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 6e88e4b11273..2138e81bb9e9 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1344,7 +1344,8 @@ start:
hba->clk_gating.state = REQ_CLKS_ON;
trace_ufshcd_clk_gating(dev_name(hba->dev),
hba->clk_gating.state);
- schedule_work(&hba->clk_gating.ungate_work);
+ queue_work(hba->clk_gating.ungating_workq,
+ &hba->clk_gating.ungate_work);
/*
* fall through to check if we should wait for this
* work to be done or not.
@@ -1617,6 +1618,7 @@ static enum hrtimer_restart ufshcd_clkgate_hrtimer_handler(
static void ufshcd_init_clk_gating(struct ufs_hba *hba)
{
struct ufs_clk_gating *gating = &hba->clk_gating;
+ char wq_name[sizeof("ufs_clk_ungating_00")];
hba->clk_gating.state = CLKS_ON;
@@ -1645,6 +1647,10 @@ static void ufshcd_init_clk_gating(struct ufs_hba *hba)
hrtimer_init(&gating->gate_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
gating->gate_hrtimer.function = ufshcd_clkgate_hrtimer_handler;
+ snprintf(wq_name, ARRAY_SIZE(wq_name), "ufs_clk_ungating_%d",
+ hba->host->host_no);
+ hba->clk_gating.ungating_workq = create_singlethread_workqueue(wq_name);
+
gating->is_enabled = true;
gating->delay_ms_pwr_save = UFSHCD_CLK_GATING_DELAY_MS_PWR_SAVE;
@@ -1707,6 +1713,7 @@ static void ufshcd_exit_clk_gating(struct ufs_hba *hba)
device_remove_file(hba->dev, &hba->clk_gating.enable_attr);
ufshcd_cancel_gate_work(hba);
cancel_work_sync(&hba->clk_gating.ungate_work);
+ destroy_workqueue(hba->clk_gating.ungating_workq);
}
static void ufshcd_set_auto_hibern8_timer(struct ufs_hba *hba, u32 delay)
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index b20afd85beab..c34a998aac17 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -431,6 +431,7 @@ struct ufs_clk_gating {
struct device_attribute enable_attr;
bool is_enabled;
int active_reqs;
+ struct workqueue_struct *ungating_workq;
};
/* Hibern8 state */