linux-kernel - [PATCH 5/6] scsi: ufs: exynos: Move phy calls to .exit() callback

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Message-ID: <20250226220414.343659-6-peter.griffin@linaro.org>
Date: Wed, 26 Feb 2025 22:04:13 +0000
From: Peter Griffin <peter.griffin@...aro.org>
To: alim.akhtar@...sung.com,
	James.Bottomley@...senPartnership.com,
	martin.petersen@...cle.com,
	krzk@...nel.org
Cc: linux-scsi@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	willmcvicker@...gle.com,
	tudor.ambarus@...aro.org,
	andre.draszik@...aro.org,
	ebiggers@...nel.org,
	bvanassche@....org,
	kernel-team@...roid.com,
	Peter Griffin <peter.griffin@...aro.org>
Subject: [PATCH 5/6] scsi: ufs: exynos: Move phy calls to .exit() callback

ufshcd_pltfrm_remove() calls ufshcd_remove(hba) which in turn calls
ufshcd_hba_exit().

By moving the phy_power_off() and phy_exit() calls to the newly created
.exit callback they get called by ufshcd_variant_hba_exit() before
ufshcd_hba_exit() turns off the regulators. This is also similar flow
to the ufs-qcom driver.

Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
 drivers/ufs/host/ufs-exynos.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c
index 27eb360458a7..4c3e03a3b8d9 100644
--- a/drivers/ufs/host/ufs-exynos.c
+++ b/drivers/ufs/host/ufs-exynos.c
@@ -1513,6 +1513,15 @@ static int exynos_ufs_init(struct ufs_hba *hba)
 	return ret;
 }
 
+static void exynos_ufs_exit(struct ufs_hba *hba)
+{
+	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
+
+	phy_power_off(ufs->phy);
+	phy_exit(ufs->phy);
+}
+
+
 static int exynos_ufs_host_reset(struct ufs_hba *hba)
 {
 	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
@@ -1968,6 +1977,7 @@ static int gs101_ufs_pre_pwr_change(struct exynos_ufs *ufs,
 static const struct ufs_hba_variant_ops ufs_hba_exynos_ops = {
 	.name				= "exynos_ufs",
 	.init				= exynos_ufs_init,
+	.exit				= exynos_ufs_exit,
 	.hce_enable_notify		= exynos_ufs_hce_enable_notify,
 	.link_startup_notify		= exynos_ufs_link_startup_notify,
 	.pwr_change_notify		= exynos_ufs_pwr_change_notify,
@@ -2006,13 +2016,7 @@ static int exynos_ufs_probe(struct platform_device *pdev)
 
 static void exynos_ufs_remove(struct platform_device *pdev)
 {
-	struct ufs_hba *hba =  platform_get_drvdata(pdev);
-	struct exynos_ufs *ufs = ufshcd_get_variant(hba);
-
 	ufshcd_pltfrm_remove(pdev);
-
-	phy_power_off(ufs->phy);
-	phy_exit(ufs->phy);
 }
 
 static struct exynos_ufs_uic_attr exynos7_uic_attr = {
-- 
2.48.1.658.g4767266eb4-goog