Used the generic PHY framework API to create the PHY. Now the power off and
power on are done in omap_usb_power_off and omap_usb_power_on respectively.
The omap-usb2 driver is also moved to driver/phy.
However using the old USB PHY library cannot be completely removed
because OTG is intertwined with PHY and moving to the new framework
will break OTG. Once we have a separate OTG state machine, we
can get rid of the USB PHY library.
Signed-off-by: Kishon Vijay Abraham I kis...@ti.com
Reviewed-by: Sylwester Nawrocki s.nawro...@samsung.com
Acked-by: Felipe Balbi ba...@ti.com
---
drivers/phy/Kconfig | 12 +
drivers/phy/Makefile |1 +
drivers/{usb = }/phy/phy-omap-usb2.c | 45 ++---
drivers/usb/phy/Kconfig | 10
drivers/usb/phy/Makefile |1 -
5 files changed, 54 insertions(+), 15 deletions(-)
rename drivers/{usb = }/phy/phy-omap-usb2.c (88%)
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 349bef2..38c3477 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -15,4 +15,16 @@ config GENERIC_PHY
phy users can obtain reference to the PHY. All the users of this
framework should select this config.
+config OMAP_USB2
+ tristate OMAP USB2 PHY Driver
+ depends on ARCH_OMAP2PLUS
+ select GENERIC_PHY
+ select USB_PHY
+ select OMAP_CONTROL_USB
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
endmenu
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 9e9560f..ed5b088 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -3,3 +3,4 @@
#
obj-$(CONFIG_GENERIC_PHY) += phy-core.o
+obj-$(CONFIG_OMAP_USB2)+= phy-omap-usb2.o
diff --git a/drivers/usb/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
similarity index 88%
rename from drivers/usb/phy/phy-omap-usb2.c
rename to drivers/phy/phy-omap-usb2.c
index 844ab68..25e0f3c 100644
--- a/drivers/usb/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -28,6 +28,7 @@
#include linux/pm_runtime.h
#include linux/delay.h
#include linux/usb/omap_control_usb.h
+#include linux/phy/phy.h
/**
* omap_usb2_set_comparator - links the comparator present in the sytem with
@@ -119,10 +120,36 @@ static int omap_usb2_suspend(struct usb_phy *x, int
suspend)
return 0;
}
+static int omap_usb_power_off(struct phy *x)
+{
+ struct omap_usb *phy = phy_get_drvdata(x);
+
+ omap_control_usb_phy_power(phy-control_dev, 0);
+
+ return 0;
+}
+
+static int omap_usb_power_on(struct phy *x)
+{
+ struct omap_usb *phy = phy_get_drvdata(x);
+
+ omap_control_usb_phy_power(phy-control_dev, 1);
+
+ return 0;
+}
+
+static struct phy_ops ops = {
+ .power_on = omap_usb_power_on,
+ .power_off = omap_usb_power_off,
+ .owner = THIS_MODULE,
+};
+
static int omap_usb2_probe(struct platform_device *pdev)
{
struct omap_usb *phy;
+ struct phy *generic_phy;
struct usb_otg *otg;
+ struct phy_provider *phy_provider;
phy = devm_kzalloc(pdev-dev, sizeof(*phy), GFP_KERNEL);
if (!phy) {
@@ -144,6 +171,11 @@ static int omap_usb2_probe(struct platform_device *pdev)
phy-phy.otg= otg;
phy-phy.type = USB_PHY_TYPE_USB2;
+ phy_provider = devm_of_phy_provider_register(phy-dev,
+ of_phy_simple_xlate);
+ if (IS_ERR(phy_provider))
+ return PTR_ERR(phy_provider);
+
phy-control_dev = omap_get_control_dev();
if (IS_ERR(phy-control_dev)) {
dev_dbg(pdev-dev, Failed to get control device\n);
@@ -159,6 +191,15 @@ static int omap_usb2_probe(struct platform_device *pdev)
otg-start_srp = omap_usb_start_srp;
otg-phy= phy-phy;
+ platform_set_drvdata(pdev, phy);
+ pm_runtime_enable(phy-dev);
+
+ generic_phy = devm_phy_create(phy-dev, ops, NULL);
+ if (IS_ERR(generic_phy))
+ return PTR_ERR(generic_phy);
+
+ phy_set_drvdata(generic_phy, phy);
+
phy-wkupclk = devm_clk_get(phy-dev, usb_phy_cm_clk32k);
if (IS_ERR(phy-wkupclk)) {
dev_err(pdev-dev, unable to get usb_phy_cm_clk32k\n);
@@ -174,10 +215,6 @@ static int omap_usb2_probe(struct platform_device *pdev)
usb_add_phy_dev(phy-phy);
- platform_set_drvdata(pdev, phy);
-
- pm_runtime_enable(phy-dev);
-
return 0;
}
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 3622fff..7813238 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -72,16 +72,6 @@ config
