diff mbox series

[v2,3/3] ufs: ufs-exynos: change ufs phy control sequence

Message ID 20220706020255.151177-4-chanho61.park@samsung.com (mailing list archive)
State New, archived
Headers show
Series change exynos ufs phy control | expand

Commit Message

Chanho Park July 6, 2022, 2:02 a.m. UTC 
Since commit 1599069a62c6 ("phy: core: Warn when phy_power_on is called
before phy_init"), below warning has been reported.

phy_power_on was called before phy_init

To address this, we need to remove phy_power_on from
exynos_ufs_phy_init and move it after phy_init. phy_power_off and
phy_exit are also necessary in exynos_ufs_remove.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/ufs/host/ufs-exynos.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

Comments

Krzysztof Kozlowski July 6, 2022, 6:56 a.m. UTC | #1 
On 06/07/2022 04:02, Chanho Park wrote:
> Since commit 1599069a62c6 ("phy: core: Warn when phy_power_on is called
> before phy_init"), below warning has been reported.
> 
> phy_power_on was called before phy_init
> 
> To address this, we need to remove phy_power_on from
> exynos_ufs_phy_init and move it after phy_init. phy_power_off and
> phy_exit are also necessary in exynos_ufs_remove.
> 
> Signed-off-by: Chanho Park <chanho61.park@samsung.com>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index f971569bafc7..eced97538082 100644
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -905,9 +905,13 @@  static int exynos_ufs_phy_init(struct exynos_ufs *ufs)
 	if (ret) {
 		dev_err(hba->dev, "%s: phy init failed, ret = %d\n",
 			__func__, ret);
-		goto out_exit_phy;
+		return ret;
 	}
 
+	ret = phy_power_on(generic_phy);
+	if (ret)
+		goto out_exit_phy;
+
 	return 0;
 
 out_exit_phy:
@@ -1169,10 +1173,6 @@  static int exynos_ufs_init(struct ufs_hba *hba)
 		goto out;
 	}
 
-	ret = phy_power_on(ufs->phy);
-	if (ret)
-		goto phy_off;
-
 	exynos_ufs_priv_init(hba, ufs);
 
 	if (ufs->drv_data->drv_init) {
@@ -1190,8 +1190,6 @@  static int exynos_ufs_init(struct ufs_hba *hba)
 	exynos_ufs_config_smu(ufs);
 	return 0;
 
-phy_off:
-	phy_power_off(ufs->phy);
 out:
 	hba->priv = NULL;
 	return ret;
@@ -1602,9 +1600,14 @@  static int exynos_ufs_probe(struct platform_device *pdev)
 static int exynos_ufs_remove(struct platform_device *pdev)
 {
 	struct ufs_hba *hba =  platform_get_drvdata(pdev);
+	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
 
 	pm_runtime_get_sync(&(pdev)->dev);
 	ufshcd_remove(hba);
+
+	phy_power_off(ufs->phy);
+	phy_exit(ufs->phy);
+
 	return 0;
 }