[usb-next PATCH v11 7/8] usb: host: ohci-platform: remove custom USB PHY handling

Martin Blumenstingl
2018-03-03T21:43:08Z

The new PHY wrapper is now wired up in the core HCD code. This means
that PHYs are now controlled (initialized, enabled, disabled, exited)
without requiring any host-driver specific code.
Remove the custom USB PHY handling from the ohci-platform driver as the
core HCD code now handles this.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
Acked-by: Alan Stern <stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org>
---
drivers/usb/host/ohci-platform.c | 56 ++++------------------------------------
1 file changed, 5 insertions(+), 51 deletions(-)

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 62ef36a9333f..65a1c3fdc88c 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -21,7 +21,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/err.h>
-#include <linux/phy/phy.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
@@ -38,8 +38,6 @@
struct ohci_platform_priv {
struct clk *clks[OHCI_MAX_CLKS];
struct reset_control *resets;
- struct phy **phys;
- int num_phys;
};

static const char hcd_name[] = "ohci-platform";
@@ -48,7 +46,7 @@ static int ohci_platform_power_on(struct platform_device *dev)
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd);
- int clk, ret, phy_num;
+ int clk, ret;

for (clk = 0; clk < OHCI_MAX_CLKS && priv->clks[clk]; clk++) {
ret = clk_prepare_enable(priv->clks[clk]);
@@ -56,24 +54,8 @@ static int ohci_platform_power_on(struct platform_device *dev)
goto err_disable_clks;
}

- for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- ret = phy_init(priv->phys[phy_num]);
- if (ret)
- goto err_exit_phy;
- ret = phy_power_on(priv->phys[phy_num]);
- if (ret) {
- phy_exit(priv->phys[phy_num]);
- goto err_exit_phy;
- }
- }
-
return 0;

-err_exit_phy:
- while (--phy_num >= 0) {
- phy_power_off(priv->phys[phy_num]);
- phy_exit(priv->phys[phy_num]);
- }
err_disable_clks:
while (--clk >= 0)
clk_disable_unprepare(priv->clks[clk]);
@@ -85,12 +67,7 @@ static void ohci_platform_power_off(struct platform_device *dev)
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd);
- int clk, phy_num;
-
- for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- phy_power_off(priv->phys[phy_num]);
- phy_exit(priv->phys[phy_num]);
- }
+ int clk;

for (clk = OHCI_MAX_CLKS - 1; clk >= 0; clk--)
if (priv->clks[clk])
@@ -117,7 +94,7 @@ static int ohci_platform_probe(struct platform_device *dev)
struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
struct ohci_platform_priv *priv;
struct ohci_hcd *ohci;
- int err, irq, phy_num, clk = 0;
+ int err, irq, clk = 0;

if (usb_disabled())
return -ENODEV;
@@ -169,29 +146,6 @@ static int ohci_platform_probe(struct platform_device *dev)
of_property_read_u32(dev->dev.of_node, "num-ports",
&ohci->num_ports);

- priv->num_phys = of_count_phandle_with_args(dev->dev.of_node,
- "phys", "#phy-cells");
-
- if (priv->num_phys > 0) {
- priv->phys = devm_kcalloc(&dev->dev, priv->num_phys,
- sizeof(struct phy *), GFP_KERNEL);
- if (!priv->phys)
- return -ENOMEM;
- } else
- priv->num_phys = 0;
-
- for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
- priv->phys[phy_num] = devm_of_phy_get_by_index(
- &dev->dev, dev->dev.of_node, phy_num);
- if (IS_ERR(priv->phys[phy_num])) {
- err = PTR_ERR(priv->phys[phy_num]);
- goto err_put_hcd;
- } else {
- /* Avoiding phy_get() in usb_add_hcd() */
- hcd->skip_phy_initialization = 1;
- }
- }
-
for (clk = 0; clk < OHCI_MAX_CLKS; clk++) {
priv->clks[clk] = of_clk_get(dev->dev.of_node, clk);
if (IS_ERR(priv->clks[clk])) {
@@ -277,7 +231,7 @@ static int ohci_platform_probe(struct platform_device *dev)
err_put_clks:
while (--clk >= 0)
clk_put(priv->clks[clk]);
-err_put_hcd:
+
if (pdata == &ohci_platform_defaults)
dev->dev.platform_data = NULL;

--
2.16.2