[PATCH v2 1/3] scsi: ufs: core: Add ufshcd_is_ufs_dev_busy()

From: Bean Huo
Date: Wed Nov 22 2023 - 12:25:47 EST


From: Bean Huo <beanhuo@xxxxxxxxxx>

Add helper inline for retrieving whether UFS device is busy or not.

Signed-off-by: Bean Huo <beanhuo@xxxxxxxxxx>
---
drivers/ufs/core/ufshcd.c | 6 +-----
include/ufs/ufshcd.h | 8 +++++++-
2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 68d7da02944f..5d009d2c34f0 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -1916,11 +1916,7 @@ static void ufshcd_gate_work(struct work_struct *work)
hba->clk_gating.state);
goto rel_lock;
}
-
- if (hba->clk_gating.active_reqs
- || hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL
- || hba->outstanding_reqs || hba->outstanding_tasks
- || hba->active_uic_cmd || hba->uic_async_done)
+ if (ufshcd_is_ufs_dev_busy(hba))
goto rel_lock;

spin_unlock_irqrestore(hba->host->host_lock, flags);
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 7f0b2c5599cd..b0cd6c6591ef 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -126,7 +126,6 @@ enum uic_link_state {
((h)->curr_dev_pwr_mode == UFS_POWERDOWN_PWR_MODE)
#define ufshcd_is_ufs_dev_deepsleep(h) \
((h)->curr_dev_pwr_mode == UFS_DEEPSLEEP_PWR_MODE)
-
/*
* UFS Power management levels.
* Each level is in increasing order of power savings, except DeepSleep
@@ -1408,6 +1407,13 @@ static inline int ufshcd_vops_phy_initialization(struct ufs_hba *hba)
return 0;
}

+static inline bool ufshcd_is_ufs_dev_busy(struct ufs_hba *hba)
+{
+ return (hba->clk_gating.active_reqs || hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL ||
+ hba->outstanding_reqs || hba->outstanding_tasks || hba->active_uic_cmd ||
+ hba->uic_async_done);
+}
+
extern const struct ufs_pm_lvl_states ufs_pm_lvl_states[];

int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
--
2.34.1