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usb: host: ehci-platform: remove custom USB PHY handling
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 ehci-platform driver as the core HCD code now handles this. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Neil Armstrong <narmstrong@baylibre.con> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
6ae9f5062a
commit
27b3df4139
1 changed files with 4 additions and 51 deletions
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@ -27,7 +27,6 @@
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/phy/phy.h>
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#include <linux/platform_device.h>
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#include <linux/reset.h>
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#include <linux/usb.h>
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@ -44,8 +43,6 @@
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struct ehci_platform_priv {
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struct clk *clks[EHCI_MAX_CLKS];
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struct reset_control *rsts;
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struct phy **phys;
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int num_phys;
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bool reset_on_resume;
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};
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@ -80,7 +77,7 @@ static int ehci_platform_power_on(struct platform_device *dev)
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{
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struct usb_hcd *hcd = platform_get_drvdata(dev);
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struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd);
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int clk, ret, phy_num;
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int clk, ret;
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for (clk = 0; clk < EHCI_MAX_CLKS && priv->clks[clk]; clk++) {
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ret = clk_prepare_enable(priv->clks[clk]);
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@ -88,24 +85,8 @@ static int ehci_platform_power_on(struct platform_device *dev)
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goto err_disable_clks;
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}
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for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
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ret = phy_init(priv->phys[phy_num]);
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if (ret)
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goto err_exit_phy;
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ret = phy_power_on(priv->phys[phy_num]);
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if (ret) {
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phy_exit(priv->phys[phy_num]);
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goto err_exit_phy;
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}
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}
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return 0;
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err_exit_phy:
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while (--phy_num >= 0) {
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phy_power_off(priv->phys[phy_num]);
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phy_exit(priv->phys[phy_num]);
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}
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err_disable_clks:
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while (--clk >= 0)
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clk_disable_unprepare(priv->clks[clk]);
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@ -117,12 +98,7 @@ static void ehci_platform_power_off(struct platform_device *dev)
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{
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struct usb_hcd *hcd = platform_get_drvdata(dev);
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struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd);
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int clk, phy_num;
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for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
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phy_power_off(priv->phys[phy_num]);
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phy_exit(priv->phys[phy_num]);
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}
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int clk;
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for (clk = EHCI_MAX_CLKS - 1; clk >= 0; clk--)
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if (priv->clks[clk])
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@ -149,7 +125,7 @@ static int ehci_platform_probe(struct platform_device *dev)
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struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev);
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struct ehci_platform_priv *priv;
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struct ehci_hcd *ehci;
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int err, irq, phy_num, clk = 0;
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int err, irq, clk = 0;
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if (usb_disabled())
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return -ENODEV;
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@ -202,29 +178,6 @@ static int ehci_platform_probe(struct platform_device *dev)
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"has-transaction-translator"))
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hcd->has_tt = 1;
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priv->num_phys = of_count_phandle_with_args(dev->dev.of_node,
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"phys", "#phy-cells");
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if (priv->num_phys > 0) {
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priv->phys = devm_kcalloc(&dev->dev, priv->num_phys,
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sizeof(struct phy *), GFP_KERNEL);
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if (!priv->phys)
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return -ENOMEM;
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} else
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priv->num_phys = 0;
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for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
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priv->phys[phy_num] = devm_of_phy_get_by_index(
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&dev->dev, dev->dev.of_node, phy_num);
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if (IS_ERR(priv->phys[phy_num])) {
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err = PTR_ERR(priv->phys[phy_num]);
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goto err_put_hcd;
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} else {
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/* Avoiding phy_get() in usb_add_hcd() */
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hcd->skip_phy_initialization = 1;
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}
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}
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for (clk = 0; clk < EHCI_MAX_CLKS; clk++) {
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priv->clks[clk] = of_clk_get(dev->dev.of_node, clk);
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if (IS_ERR(priv->clks[clk])) {
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@ -306,7 +259,7 @@ static int ehci_platform_probe(struct platform_device *dev)
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err_put_clks:
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while (--clk >= 0)
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clk_put(priv->clks[clk]);
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err_put_hcd:
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if (pdata == &ehci_platform_defaults)
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dev->dev.platform_data = NULL;
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