Merge tag 'phy-for-5.6_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next

Kishon writes:

phy: for 5.6

*) Add support in PHY core to create link between PHY consumer and PHY
   provider
*) Add DisplayPort PHY configuration set to be used for negotiating the
   configurations to be used between DisplayPort controller and
   DisplayPort PHY
*) Add PHY wrapper driver (configure inputs to Cadence Sierra PHY) for
   TI's J721E SoC and adapt Cadence Sierra PHY driver to be used for
   J721E SoC (Supports USB and PCIe)
*) Add PHY driver for eMMC PHY in Intel LGM SoC
*) Add PHY support for 7216 and 7211 Broadcom SoCs which uses the new
   Synopsys USB Controller
*) Add support for 16nm SATA PHY present in Broadcom 7216 SoC
*) Fix lost packet issue, fix MDIO from getting inaccessible, fix
   occasional transaction failures, fix USB driver from crashing in
   Broadcom USB PHY driver
*) Fix missing PCS SW reset in UFS PHY of Qualcomm SM8150
*) Use "struct phy_configure_opts_mipi_dphy" to pass parameters from
   display controller to rockchip-inno-dsidphy
*) Other cleanups including compile testing for some of the PHY drivers,
   fixing Kconfig indentation, duplicate writes in drivers etc.,

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

* tag 'phy-for-5.6_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy: (54 commits)
  dt-bindings: phy: Add PHY_TYPE_DP definition
  phy: ti: j721e-wiz: Fix return value check in wiz_probe()
  dt-bindings: usb: Convert Allwinner A80 USB PHY controller to a schema
  phy: intel-lgm-emmc: Fix warning by adding missing MODULE_LICENSE
  phy: ti: j721e-wiz: Manage typec-gpio-dir
  dt-bindings: phy: ti,phy-j721e-wiz: Add Type-C dir GPIO
  phy: cadence: Sierra: add phy_reset hook
  phy: cadence: Sierra: remove redundant initialization of pointer regmap
  phy: Add DisplayPort configuration options
  phy: Enable compile testing for some of drivers
  phy: mediatek: Fix Kconfig indentation
  phy: intel-lgm-emmc: Add support for eMMC PHY
  dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY
  phy: ti: j721e-wiz: Add support for WIZ module present in TI J721E SoC
  dt-bindings: phy: Document WIZ (SERDES wrapper) bindings
  phy: cadence: Sierra: Use correct dev pointer in cdns_sierra_phy_remove()
  phy: cadence: Sierra: Set cmn_refclk_dig_div/cmn_refclk1_dig_div frequency to 25MHz
  phy: cadence: Sierra: Change MAX_LANES of Sierra to 16
  phy: cadence: Sierra: Check for PLL lock during PHY power on
  phy: cadence: Sierra: Get reset control "array" for each link
  ...

1 files changed, 44 insertions, 5 deletions

diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index b04f4fe85ac2..2eb28cc2d2dc 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -29,7 +29,7 @@ static void devm_phy_release(struct device *dev, void *res)
 {
 	struct phy *phy = *(struct phy **)res;
 
-	phy_put(phy);
+	phy_put(dev, phy);
 }
 
 static void devm_phy_provider_release(struct device *dev, void *res)
@@ -566,12 +566,12 @@ struct phy *of_phy_get(struct device_node *np, const char *con_id)
 EXPORT_SYMBOL_GPL(of_phy_get);
 
 /**
- * phy_put() - release the PHY
- * @phy: the phy returned by phy_get()
+ * of_phy_put() - release the PHY
+ * @phy: the phy returned by of_phy_get()
  *
- * Releases a refcount the caller received from phy_get().
+ * Releases a refcount the caller received from of_phy_get().
  */
-void phy_put(struct phy *phy)
+void of_phy_put(struct phy *phy)
 {
 	if (!phy || IS_ERR(phy))
 		return;
@@ -584,6 +584,20 @@ void phy_put(struct phy *phy)
 	module_put(phy->ops->owner);
 	put_device(&phy->dev);
 }
+EXPORT_SYMBOL_GPL(of_phy_put);
+
+/**
+ * phy_put() - release the PHY
+ * @dev: device that wants to release this phy
+ * @phy: the phy returned by phy_get()
+ *
+ * Releases a refcount the caller received from phy_get().
+ */
+void phy_put(struct device *dev, struct phy *phy)
+{
+	device_link_remove(dev, &phy->dev);
+	of_phy_put(phy);
+}
 EXPORT_SYMBOL_GPL(phy_put);
 
 /**
@@ -651,6 +665,7 @@ struct phy *phy_get(struct device *dev, const char *string)
 {
 	int index = 0;
 	struct phy *phy;
+	struct device_link *link;
 
 	if (string == NULL) {
 		dev_WARN(dev, "missing string\n");
@@ -672,6 +687,13 @@ struct phy *phy_get(struct device *dev, const char *string)
 
 	get_device(&phy->dev);
 
+	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);
+	if (!link) {
+		dev_err(dev, "failed to create device link to %s\n",
+			dev_name(phy->dev.parent));
+		return ERR_PTR(-EINVAL);
+	}
+
 	return phy;
 }
 EXPORT_SYMBOL_GPL(phy_get);
@@ -765,6 +787,7 @@ struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
 			    const char *con_id)
 {
 	struct phy **ptr, *phy;
+	struct device_link *link;
 
 	ptr = devres_alloc(devm_phy_release, sizeof(*ptr), GFP_KERNEL);
 	if (!ptr)
@@ -776,6 +799,14 @@ struct phy *devm_of_phy_get(struct device *dev, struct device_node *np,
 		devres_add(dev, ptr);
 	} else {
 		devres_free(ptr);
+		return phy;
+	}
+
+	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);
+	if (!link) {
+		dev_err(dev, "failed to create device link to %s\n",
+			dev_name(phy->dev.parent));
+		return ERR_PTR(-EINVAL);
 	}
 
 	return phy;
@@ -798,6 +829,7 @@ struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
 				     int index)
 {
 	struct phy **ptr, *phy;
+	struct device_link *link;
 
 	ptr = devres_alloc(devm_phy_release, sizeof(*ptr), GFP_KERNEL);
 	if (!ptr)
@@ -819,6 +851,13 @@ struct phy *devm_of_phy_get_by_index(struct device *dev, struct device_node *np,
 	*ptr = phy;
 	devres_add(dev, ptr);
 
+	link = device_link_add(dev, &phy->dev, DL_FLAG_STATELESS);
+	if (!link) {
+		dev_err(dev, "failed to create device link to %s\n",
+			dev_name(phy->dev.parent));
+		return ERR_PTR(-EINVAL);
+	}
+
 	return phy;
 }
 EXPORT_SYMBOL_GPL(devm_of_phy_get_by_index);