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path: root/drivers/usb/chipidea/ci13xxx_imx.c
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Diffstat (limited to 'drivers/usb/chipidea/ci13xxx_imx.c')
-rw-r--r--drivers/usb/chipidea/ci13xxx_imx.c274
1 files changed, 0 insertions, 274 deletions
diff --git a/drivers/usb/chipidea/ci13xxx_imx.c b/drivers/usb/chipidea/ci13xxx_imx.c
deleted file mode 100644
index 73f9d5f15adb..000000000000
--- a/drivers/usb/chipidea/ci13xxx_imx.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * Copyright 2012 Freescale Semiconductor, Inc.
- * Copyright (C) 2012 Marek Vasut <marex@denx.de>
- * on behalf of DENX Software Engineering GmbH
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/module.h>
-#include <linux/of_platform.h>
-#include <linux/of_gpio.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/dma-mapping.h>
-#include <linux/usb/chipidea.h>
-#include <linux/clk.h>
-#include <linux/regulator/consumer.h>
-#include <linux/pinctrl/consumer.h>
-
-#include "ci.h"
-#include "ci13xxx_imx.h"
-
-#define pdev_to_phy(pdev) \
- ((struct usb_phy *)platform_get_drvdata(pdev))
-
-struct ci13xxx_imx_data {
- struct device_node *phy_np;
- struct usb_phy *phy;
- struct platform_device *ci_pdev;
- struct clk *clk;
- struct regulator *reg_vbus;
-};
-
-static const struct usbmisc_ops *usbmisc_ops;
-
-/* Common functions shared by usbmisc drivers */
-
-int usbmisc_set_ops(const struct usbmisc_ops *ops)
-{
- if (usbmisc_ops)
- return -EBUSY;
-
- usbmisc_ops = ops;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(usbmisc_set_ops);
-
-void usbmisc_unset_ops(const struct usbmisc_ops *ops)
-{
- usbmisc_ops = NULL;
-}
-EXPORT_SYMBOL_GPL(usbmisc_unset_ops);
-
-int usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device *usbdev)
-{
- struct device_node *np = dev->of_node;
- struct of_phandle_args args;
- int ret;
-
- usbdev->dev = dev;
-
- ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells",
- 0, &args);
- if (ret) {
- dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n",
- ret);
- memset(usbdev, 0, sizeof(*usbdev));
- return ret;
- }
- usbdev->index = args.args[0];
- of_node_put(args.np);
-
- if (of_find_property(np, "disable-over-current", NULL))
- usbdev->disable_oc = 1;
-
- if (of_find_property(np, "external-vbus-divider", NULL))
- usbdev->evdo = 1;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(usbmisc_get_init_data);
-
-/* End of common functions shared by usbmisc drivers*/
-
-static struct ci13xxx_platform_data ci13xxx_imx_platdata = {
- .name = "ci13xxx_imx",
- .flags = CI13XXX_REQUIRE_TRANSCEIVER |
- CI13XXX_PULLUP_ON_VBUS |
- CI13XXX_DISABLE_STREAMING,
- .capoffset = DEF_CAPOFFSET,
-};
-
-static int ci13xxx_imx_probe(struct platform_device *pdev)
-{
- struct ci13xxx_imx_data *data;
- struct platform_device *plat_ci, *phy_pdev;
- struct device_node *phy_np;
- struct resource *res;
- struct regulator *reg_vbus;
- struct pinctrl *pinctrl;
- int ret;
-
- if (of_find_property(pdev->dev.of_node, "fsl,usbmisc", NULL)
- && !usbmisc_ops)
- return -EPROBE_DEFER;
-
- data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
- if (!data) {
- dev_err(&pdev->dev, "Failed to allocate CI13xxx-IMX data!\n");
- return -ENOMEM;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "Can't get device resources!\n");
- return -ENOENT;
- }
-
- pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
- if (IS_ERR(pinctrl))
- dev_warn(&pdev->dev, "pinctrl get/select failed, err=%ld\n",
- PTR_ERR(pinctrl));
-
- data->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(data->clk)) {
- dev_err(&pdev->dev,
- "Failed to get clock, err=%ld\n", PTR_ERR(data->clk));
- return PTR_ERR(data->clk);
- }
-
- ret = clk_prepare_enable(data->clk);
- if (ret) {
- dev_err(&pdev->dev,
- "Failed to prepare or enable clock, err=%d\n", ret);
- return ret;
- }
-
- phy_np = of_parse_phandle(pdev->dev.of_node, "fsl,usbphy", 0);
- if (phy_np) {
- data->phy_np = phy_np;
- phy_pdev = of_find_device_by_node(phy_np);
- if (phy_pdev) {
- struct usb_phy *phy;
- phy = pdev_to_phy(phy_pdev);
- if (phy &&
- try_module_get(phy_pdev->dev.driver->owner)) {
- usb_phy_init(phy);
- data->phy = phy;
- }
- }
- }
-
- /* we only support host now, so enable vbus here */
- reg_vbus = devm_regulator_get(&pdev->dev, "vbus");
- if (!IS_ERR(reg_vbus)) {
- ret = regulator_enable(reg_vbus);
- if (ret) {
- dev_err(&pdev->dev,
- "Failed to enable vbus regulator, err=%d\n",
- ret);
- goto put_np;
- }
- data->reg_vbus = reg_vbus;
- } else {
- reg_vbus = NULL;
- }
-
- ci13xxx_imx_platdata.phy = data->phy;
-
- if (!pdev->dev.dma_mask)
- pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
- if (!pdev->dev.coherent_dma_mask)
- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-
- if (usbmisc_ops && usbmisc_ops->init) {
- ret = usbmisc_ops->init(&pdev->dev);
- if (ret) {
- dev_err(&pdev->dev,
- "usbmisc init failed, ret=%d\n", ret);
- goto err;
- }
- }
-
- plat_ci = ci13xxx_add_device(&pdev->dev,
- pdev->resource, pdev->num_resources,
- &ci13xxx_imx_platdata);
- if (IS_ERR(plat_ci)) {
- ret = PTR_ERR(plat_ci);
- dev_err(&pdev->dev,
- "Can't register ci_hdrc platform device, err=%d\n",
- ret);
- goto err;
- }
-
- if (usbmisc_ops && usbmisc_ops->post) {
- ret = usbmisc_ops->post(&pdev->dev);
- if (ret) {
- dev_err(&pdev->dev,
- "usbmisc post failed, ret=%d\n", ret);
- goto put_np;
- }
- }
-
- data->ci_pdev = plat_ci;
- platform_set_drvdata(pdev, data);
-
- pm_runtime_no_callbacks(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
-
- return 0;
-
-err:
- if (reg_vbus)
- regulator_disable(reg_vbus);
-put_np:
- if (phy_np)
- of_node_put(phy_np);
- clk_disable_unprepare(data->clk);
- return ret;
-}
-
-static int ci13xxx_imx_remove(struct platform_device *pdev)
-{
- struct ci13xxx_imx_data *data = platform_get_drvdata(pdev);
-
- pm_runtime_disable(&pdev->dev);
- ci13xxx_remove_device(data->ci_pdev);
-
- if (data->reg_vbus)
- regulator_disable(data->reg_vbus);
-
- if (data->phy) {
- usb_phy_shutdown(data->phy);
- module_put(data->phy->dev->driver->owner);
- }
-
- of_node_put(data->phy_np);
-
- clk_disable_unprepare(data->clk);
-
- platform_set_drvdata(pdev, NULL);
-
- return 0;
-}
-
-static const struct of_device_id ci13xxx_imx_dt_ids[] = {
- { .compatible = "fsl,imx27-usb", },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, ci13xxx_imx_dt_ids);
-
-static struct platform_driver ci13xxx_imx_driver = {
- .probe = ci13xxx_imx_probe,
- .remove = ci13xxx_imx_remove,
- .driver = {
- .name = "imx_usb",
- .owner = THIS_MODULE,
- .of_match_table = ci13xxx_imx_dt_ids,
- },
-};
-
-module_platform_driver(ci13xxx_imx_driver);
-
-MODULE_ALIAS("platform:imx-usb");
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("CI13xxx i.MX USB binding");
-MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
-MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>");
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-02 05:20:52 +0000