Merge branch 'nop-phy-rename' into next
authorFelipe Balbi <balbi@ti.com>
Fri, 9 Aug 2013 14:31:23 +0000 (17:31 +0300)
committerFelipe Balbi <balbi@ti.com>
Fri, 9 Aug 2013 14:31:23 +0000 (17:31 +0300)
Signed-off-by: Felipe Balbi <balbi@ti.com>
Conflicts:
drivers/usb/phy/phy-generic.c

1  2 
drivers/usb/dwc3/dwc3-exynos.c
drivers/usb/dwc3/dwc3-pci.c
drivers/usb/musb/am35x.c
drivers/usb/musb/blackfin.c
drivers/usb/musb/da8xx.c
drivers/usb/musb/davinci.c
drivers/usb/musb/musb_dsps.c
drivers/usb/musb/tusb6010.c
drivers/usb/phy/phy-generic.c

Simple merge
Simple merge
Simple merge
Simple merge
Simple merge
Simple merge
Simple merge
Simple merge
index 0000000000000000000000000000000000000000,f379b7ded03734f7b73daff96b097b164bb1ba47..406f8e43f852a4448a3fbd7e429bda32802c05e1
mode 000000,100644..100644
--- /dev/null
@@@ -1,0 -1,292 +1,293 @@@
 -      struct usb_phy_gen_xceiv_platform_data *pdata = pdev->dev.platform_data;
+ /*
+  * drivers/usb/otg/nop-usb-xceiv.c
+  *
+  * NOP USB transceiver for all USB transceiver which are either built-in
+  * into USB IP or which are mostly autonomous.
+  *
+  * Copyright (C) 2009 Texas Instruments Inc
+  * Author: Ajay Kumar Gupta <ajay.gupta@ti.com>
+  *
+  * This program is free software; you can redistribute it and/or modify
+  * it under the terms of the GNU General Public License as published by
+  * the Free Software Foundation; either version 2 of the License, or
+  * (at your option) any later version.
+  *
+  * This program is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  * GNU General Public License for more details.
+  *
+  * You should have received a copy of the GNU General Public License
+  * along with this program; if not, write to the Free Software
+  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+  *
+  * Current status:
+  *    This provides a "nop" transceiver for PHYs which are
+  *    autonomous such as isp1504, isp1707, etc.
+  */
+ #include <linux/module.h>
+ #include <linux/platform_device.h>
+ #include <linux/dma-mapping.h>
+ #include <linux/usb/otg.h>
+ #include <linux/usb/usb_phy_gen_xceiv.h>
+ #include <linux/slab.h>
+ #include <linux/clk.h>
+ #include <linux/regulator/consumer.h>
+ #include <linux/of.h>
+ struct usb_phy_gen_xceiv {
+       struct usb_phy phy;
+       struct device *dev;
+       struct clk *clk;
+       struct regulator *vcc;
+       struct regulator *reset;
+ };
+ static struct platform_device *pd;
+ void usb_nop_xceiv_register(void)
+ {
+       if (pd)
+               return;
+       pd = platform_device_register_simple("usb_phy_gen_xceiv", -1, NULL, 0);
+       if (!pd) {
+               pr_err("Unable to register generic usb transceiver\n");
+               return;
+       }
+ }
+ EXPORT_SYMBOL(usb_nop_xceiv_register);
+ void usb_nop_xceiv_unregister(void)
+ {
+       platform_device_unregister(pd);
+       pd = NULL;
+ }
+ EXPORT_SYMBOL(usb_nop_xceiv_unregister);
+ static int nop_set_suspend(struct usb_phy *x, int suspend)
+ {
+       return 0;
+ }
+ static int nop_init(struct usb_phy *phy)
+ {
+       struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev);
+       if (!IS_ERR(nop->vcc)) {
+               if (regulator_enable(nop->vcc))
+                       dev_err(phy->dev, "Failed to enable power\n");
+       }
+       if (!IS_ERR(nop->clk))
+               clk_enable(nop->clk);
+       if (!IS_ERR(nop->reset)) {
+               /* De-assert RESET */
+               if (regulator_enable(nop->reset))
+                       dev_err(phy->dev, "Failed to de-assert reset\n");
+       }
+       return 0;
+ }
+ static void nop_shutdown(struct usb_phy *phy)
+ {
+       struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev);
+       if (!IS_ERR(nop->reset)) {
+               /* Assert RESET */
+               if (regulator_disable(nop->reset))
+                       dev_err(phy->dev, "Failed to assert reset\n");
+       }
+       if (!IS_ERR(nop->clk))
+               clk_disable(nop->clk);
+       if (!IS_ERR(nop->vcc)) {
+               if (regulator_disable(nop->vcc))
+                       dev_err(phy->dev, "Failed to disable power\n");
+       }
+ }
+ static int nop_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget)
+ {
+       if (!otg)
+               return -ENODEV;
+       if (!gadget) {
+               otg->gadget = NULL;
+               return -ENODEV;
+       }
+       otg->gadget = gadget;
+       otg->phy->state = OTG_STATE_B_IDLE;
+       return 0;
+ }
+ static int nop_set_host(struct usb_otg *otg, struct usb_bus *host)
+ {
+       if (!otg)
+               return -ENODEV;
+       if (!host) {
+               otg->host = NULL;
+               return -ENODEV;
+       }
+       otg->host = host;
+       return 0;
+ }
+ static int usb_phy_gen_xceiv_probe(struct platform_device *pdev)
+ {
+       struct device *dev = &pdev->dev;
++      struct usb_phy_gen_xceiv_platform_data *pdata =
++                      dev_get_platdata(&pdev->dev);
+       struct usb_phy_gen_xceiv        *nop;
+       enum usb_phy_type       type = USB_PHY_TYPE_USB2;
+       int err;
+       u32 clk_rate = 0;
+       bool needs_vcc = false;
+       bool needs_reset = false;
+       nop = devm_kzalloc(&pdev->dev, sizeof(*nop), GFP_KERNEL);
+       if (!nop)
+               return -ENOMEM;
+       nop->phy.otg = devm_kzalloc(&pdev->dev, sizeof(*nop->phy.otg),
+                                                       GFP_KERNEL);
+       if (!nop->phy.otg)
+               return -ENOMEM;
+       if (dev->of_node) {
+               struct device_node *node = dev->of_node;
+               if (of_property_read_u32(node, "clock-frequency", &clk_rate))
+                       clk_rate = 0;
+               needs_vcc = of_property_read_bool(node, "vcc-supply");
+               needs_reset = of_property_read_bool(node, "reset-supply");
+       } else if (pdata) {
+               type = pdata->type;
+               clk_rate = pdata->clk_rate;
+               needs_vcc = pdata->needs_vcc;
+               needs_reset = pdata->needs_reset;
+       }
+       nop->clk = devm_clk_get(&pdev->dev, "main_clk");
+       if (IS_ERR(nop->clk)) {
+               dev_dbg(&pdev->dev, "Can't get phy clock: %ld\n",
+                                       PTR_ERR(nop->clk));
+       }
+       if (!IS_ERR(nop->clk) && clk_rate) {
+               err = clk_set_rate(nop->clk, clk_rate);
+               if (err) {
+                       dev_err(&pdev->dev, "Error setting clock rate\n");
+                       return err;
+               }
+       }
+       if (!IS_ERR(nop->clk)) {
+               err = clk_prepare(nop->clk);
+               if (err) {
+                       dev_err(&pdev->dev, "Error preparing clock\n");
+                       return err;
+               }
+       }
+       nop->vcc = devm_regulator_get(&pdev->dev, "vcc");
+       if (IS_ERR(nop->vcc)) {
+               dev_dbg(&pdev->dev, "Error getting vcc regulator: %ld\n",
+                                       PTR_ERR(nop->vcc));
+               if (needs_vcc)
+                       return -EPROBE_DEFER;
+       }
+       nop->reset = devm_regulator_get(&pdev->dev, "reset");
+       if (IS_ERR(nop->reset)) {
+               dev_dbg(&pdev->dev, "Error getting reset regulator: %ld\n",
+                                       PTR_ERR(nop->reset));
+               if (needs_reset)
+                       return -EPROBE_DEFER;
+       }
+       nop->dev                = &pdev->dev;
+       nop->phy.dev            = nop->dev;
+       nop->phy.label          = "nop-xceiv";
+       nop->phy.set_suspend    = nop_set_suspend;
+       nop->phy.init           = nop_init;
+       nop->phy.shutdown       = nop_shutdown;
+       nop->phy.state          = OTG_STATE_UNDEFINED;
+       nop->phy.type           = type;
+       nop->phy.otg->phy               = &nop->phy;
+       nop->phy.otg->set_host          = nop_set_host;
+       nop->phy.otg->set_peripheral    = nop_set_peripheral;
+       err = usb_add_phy_dev(&nop->phy);
+       if (err) {
+               dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
+                       err);
+               goto err_add;
+       }
+       platform_set_drvdata(pdev, nop);
+       ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier);
+       return 0;
+ err_add:
+       if (!IS_ERR(nop->clk))
+               clk_unprepare(nop->clk);
+       return err;
+ }
+ static int usb_phy_gen_xceiv_remove(struct platform_device *pdev)
+ {
+       struct usb_phy_gen_xceiv *nop = platform_get_drvdata(pdev);
+       if (!IS_ERR(nop->clk))
+               clk_unprepare(nop->clk);
+       usb_remove_phy(&nop->phy);
+       return 0;
+ }
+ static const struct of_device_id nop_xceiv_dt_ids[] = {
+       { .compatible = "usb-nop-xceiv" },
+       { }
+ };
+ MODULE_DEVICE_TABLE(of, nop_xceiv_dt_ids);
+ static struct platform_driver usb_phy_gen_xceiv_driver = {
+       .probe          = usb_phy_gen_xceiv_probe,
+       .remove         = usb_phy_gen_xceiv_remove,
+       .driver         = {
+               .name   = "usb_phy_gen_xceiv",
+               .owner  = THIS_MODULE,
+               .of_match_table = nop_xceiv_dt_ids,
+       },
+ };
+ static int __init usb_phy_gen_xceiv_init(void)
+ {
+       return platform_driver_register(&usb_phy_gen_xceiv_driver);
+ }
+ subsys_initcall(usb_phy_gen_xceiv_init);
+ static void __exit usb_phy_gen_xceiv_exit(void)
+ {
+       platform_driver_unregister(&usb_phy_gen_xceiv_driver);
+ }
+ module_exit(usb_phy_gen_xceiv_exit);
+ MODULE_ALIAS("platform:usb_phy_gen_xceiv");
+ MODULE_AUTHOR("Texas Instruments Inc");
+ MODULE_DESCRIPTION("NOP USB Transceiver driver");
+ MODULE_LICENSE("GPL");