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authorVivek Gautam <vivek.gautam@codeaurora.org>2016-11-08 15:37:49 +0530
committerMartin K. Petersen <martin.petersen@oracle.com>2016-11-08 18:05:45 -0500
commit3d4640f1cf84c6f40af356d6682205bf8d491731 (patch)
tree293a42150895803969234394a22189a29b55b323 /drivers/phy
parentfeb3d79800ece19c18b979c5edd1c28755f59d07 (diff)
downloadlinux-3d4640f1cf84c6f40af356d6682205bf8d491731.tar.bz2
phy: qcom-ufs: Remove common layer phy exit callback
The common layer phy exit callback ufs_qcom_phy_exit() calls phy_power_off() that has no meaning when phy_power_off() callback is already registered with the phy provider and the consumer makes use of the same. Instead, add a no-op specific phy_exit() callback for now to add the exit sequence at a later point. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/phy-qcom-ufs-i.h1
-rw-r--r--drivers/phy/phy-qcom-ufs-qmp-14nm.c7
-rw-r--r--drivers/phy/phy-qcom-ufs-qmp-20nm.c7
-rw-r--r--drivers/phy/phy-qcom-ufs.c17
4 files changed, 18 insertions, 14 deletions
diff --git a/drivers/phy/phy-qcom-ufs-i.h b/drivers/phy/phy-qcom-ufs-i.h
index 69e836d0ec3e..d505d98cf5f8 100644
--- a/drivers/phy/phy-qcom-ufs-i.h
+++ b/drivers/phy/phy-qcom-ufs-i.h
@@ -141,7 +141,6 @@ struct ufs_qcom_phy_specific_ops {
struct ufs_qcom_phy *get_ufs_qcom_phy(struct phy *generic_phy);
int ufs_qcom_phy_power_on(struct phy *generic_phy);
int ufs_qcom_phy_power_off(struct phy *generic_phy);
-int ufs_qcom_phy_exit(struct phy *generic_phy);
int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common);
int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common);
int ufs_qcom_phy_remove(struct phy *generic_phy,
diff --git a/drivers/phy/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/phy-qcom-ufs-qmp-14nm.c
index ae74614baeb2..c71c84734916 100644
--- a/drivers/phy/phy-qcom-ufs-qmp-14nm.c
+++ b/drivers/phy/phy-qcom-ufs-qmp-14nm.c
@@ -47,6 +47,11 @@ static int ufs_qcom_phy_qmp_14nm_init(struct phy *generic_phy)
return 0;
}
+static int ufs_qcom_phy_qmp_14nm_exit(struct phy *generic_phy)
+{
+ return 0;
+}
+
static
void ufs_qcom_phy_qmp_14nm_power_control(struct ufs_qcom_phy *phy, bool val)
{
@@ -94,7 +99,7 @@ static int ufs_qcom_phy_qmp_14nm_is_pcs_ready(struct ufs_qcom_phy *phy_common)
static const struct phy_ops ufs_qcom_phy_qmp_14nm_phy_ops = {
.init = ufs_qcom_phy_qmp_14nm_init,
- .exit = ufs_qcom_phy_exit,
+ .exit = ufs_qcom_phy_qmp_14nm_exit,
.power_on = ufs_qcom_phy_power_on,
.power_off = ufs_qcom_phy_power_off,
.owner = THIS_MODULE,
diff --git a/drivers/phy/phy-qcom-ufs-qmp-20nm.c b/drivers/phy/phy-qcom-ufs-qmp-20nm.c
index dfc51755d661..1a26a64e06d3 100644
--- a/drivers/phy/phy-qcom-ufs-qmp-20nm.c
+++ b/drivers/phy/phy-qcom-ufs-qmp-20nm.c
@@ -66,6 +66,11 @@ static int ufs_qcom_phy_qmp_20nm_init(struct phy *generic_phy)
return 0;
}
+static int ufs_qcom_phy_qmp_20nm_exit(struct phy *generic_phy)
+{
+ return 0;
+}
+
static
void ufs_qcom_phy_qmp_20nm_power_control(struct ufs_qcom_phy *phy, bool val)
{
@@ -152,7 +157,7 @@ static int ufs_qcom_phy_qmp_20nm_is_pcs_ready(struct ufs_qcom_phy *phy_common)
static const struct phy_ops ufs_qcom_phy_qmp_20nm_phy_ops = {
.init = ufs_qcom_phy_qmp_20nm_init,
- .exit = ufs_qcom_phy_exit,
+ .exit = ufs_qcom_phy_qmp_20nm_exit,
.power_on = ufs_qcom_phy_power_on,
.power_off = ufs_qcom_phy_power_off,
.owner = THIS_MODULE,
diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c
index fdd9b901983f..c69568b8543d 100644
--- a/drivers/phy/phy-qcom-ufs.c
+++ b/drivers/phy/phy-qcom-ufs.c
@@ -602,17 +602,6 @@ int ufs_qcom_phy_calibrate_phy(struct phy *generic_phy, bool is_rate_B)
}
EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate_phy);
-int ufs_qcom_phy_exit(struct phy *generic_phy)
-{
- struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy);
-
- if (ufs_qcom_phy->is_powered_on)
- phy_power_off(generic_phy);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(ufs_qcom_phy_exit);
-
int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy)
{
struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy);
@@ -634,6 +623,9 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy)
struct device *dev = phy_common->dev;
int err;
+ if (phy_common->is_powered_on)
+ return 0;
+
err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vdda_phy);
if (err) {
dev_err(dev, "%s enable vdda_phy failed, err=%d\n",
@@ -696,6 +688,9 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy)
{
struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy);
+ if (!phy_common->is_powered_on)
+ return 0;
+
phy_common->phy_spec_ops->power_control(phy_common, false);
if (phy_common->vddp_ref_clk.reg)