[PATCH v7 4/7] scsi: ufs-mediatek: use common delay function for required places

From: Stanley Chu
Date: Wed Mar 18 2020 - 06:40:27 EST


A common delay function is introduced in UFS core driver, thus
ufs-mediatek can use it instead of the private delay function for
required places.

Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
Reviewed-by: Avri Altman <avri.altman@xxxxxxx>
---
drivers/scsi/ufs/ufs-mediatek.c | 15 ++-------------
1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 3b0e575d7460..73bd4c245f4a 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -100,17 +100,6 @@ static int ufs_mtk_bind_mphy(struct ufs_hba *hba)
return err;
}

-static void ufs_mtk_udelay(unsigned long us)
-{
- if (!us)
- return;
-
- if (us < 10)
- udelay(us);
- else
- usleep_range(us, us + 10);
-}
-
static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
{
struct ufs_mtk_host *host = ufshcd_get_variant(hba);
@@ -123,7 +112,7 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)

if (on) {
ufs_mtk_ref_clk_notify(on, res);
- ufs_mtk_udelay(host->ref_clk_ungating_wait_us);
+ ufshcd_delay_us(host->ref_clk_ungating_wait_us, 10);
ufshcd_writel(hba, REFCLK_REQUEST, REG_UFS_REFCLK_CTRL);
} else {
ufshcd_writel(hba, REFCLK_RELEASE, REG_UFS_REFCLK_CTRL);
@@ -150,7 +139,7 @@ static int ufs_mtk_setup_ref_clk(struct ufs_hba *hba, bool on)
out:
host->ref_clk_enabled = on;
if (!on) {
- ufs_mtk_udelay(host->ref_clk_gating_wait_us);
+ ufshcd_delay_us(host->ref_clk_gating_wait_us, 10);
ufs_mtk_ref_clk_notify(on, res);
}

--
2.18.0