diff options
Diffstat (limited to 'drivers/usb/chipidea/ci_hdrc_usb2.c')
| -rw-r--r-- | drivers/usb/chipidea/ci_hdrc_usb2.c | 57 |
1 files changed, 30 insertions, 27 deletions
diff --git a/drivers/usb/chipidea/ci_hdrc_usb2.c b/drivers/usb/chipidea/ci_hdrc_usb2.c index d162cc0bb8ce..8ffa1e95d8e8 100644 --- a/drivers/usb/chipidea/ci_hdrc_usb2.c +++ b/drivers/usb/chipidea/ci_hdrc_usb2.c @@ -1,20 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2014 Marvell Technology Group Ltd. * * Antoine Tenart <antoine.tenart@free-electrons.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/module.h> #include <linux/of.h> -#include <linux/of_platform.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> +#include <linux/property.h> #include <linux/usb/chipidea.h> #include <linux/usb/hcd.h> #include <linux/usb/ulpi.h> @@ -31,13 +28,20 @@ static const struct ci_hdrc_platform_data ci_default_pdata = { .flags = CI_HDRC_DISABLE_STREAMING, }; -static struct ci_hdrc_platform_data ci_zynq_pdata = { +static const struct ci_hdrc_platform_data ci_zynq_pdata = { .capoffset = DEF_CAPOFFSET, + .flags = CI_HDRC_PHY_VBUS_CONTROL, +}; + +static const struct ci_hdrc_platform_data ci_zevio_pdata = { + .capoffset = DEF_CAPOFFSET, + .flags = CI_HDRC_REGS_SHARED | CI_HDRC_FORCE_FULLSPEED, }; static const struct of_device_id ci_hdrc_usb2_of_match[] = { - { .compatible = "chipidea,usb2"}, - { .compatible = "xlnx,zynq-usb-2.20a", .data = &ci_zynq_pdata}, + { .compatible = "chipidea,usb2" }, + { .compatible = "xlnx,zynq-usb-2.20a", .data = &ci_zynq_pdata }, + { .compatible = "lsi,zevio-usb", .data = &ci_zevio_pdata }, { } }; MODULE_DEVICE_TABLE(of, ci_hdrc_usb2_of_match); @@ -47,31 +51,33 @@ static int ci_hdrc_usb2_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct ci_hdrc_usb2_priv *priv; struct ci_hdrc_platform_data *ci_pdata = dev_get_platdata(dev); + const struct ci_hdrc_platform_data *data; int ret; - const struct of_device_id *match; if (!ci_pdata) { ci_pdata = devm_kmalloc(dev, sizeof(*ci_pdata), GFP_KERNEL); + if (!ci_pdata) + return -ENOMEM; *ci_pdata = ci_default_pdata; /* struct copy */ } - match = of_match_device(ci_hdrc_usb2_of_match, &pdev->dev); - if (match && match->data) { + data = device_get_match_data(&pdev->dev); + if (data) /* struct copy */ - *ci_pdata = *(struct ci_hdrc_platform_data *)match->data; - } + *ci_pdata = *data; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; - priv->clk = devm_clk_get(dev, NULL); - if (!IS_ERR(priv->clk)) { - ret = clk_prepare_enable(priv->clk); - if (ret) { - dev_err(dev, "failed to enable the clock: %d\n", ret); - return ret; - } + priv->clk = devm_clk_get_optional(dev, NULL); + if (IS_ERR(priv->clk)) + return PTR_ERR(priv->clk); + + ret = clk_prepare_enable(priv->clk); + if (ret) { + dev_err(dev, "failed to enable the clock: %d\n", ret); + return ret; } ci_pdata->name = dev_name(dev); @@ -95,28 +101,25 @@ static int ci_hdrc_usb2_probe(struct platform_device *pdev) return 0; clk_err: - if (!IS_ERR(priv->clk)) - clk_disable_unprepare(priv->clk); + clk_disable_unprepare(priv->clk); return ret; } -static int ci_hdrc_usb2_remove(struct platform_device *pdev) +static void ci_hdrc_usb2_remove(struct platform_device *pdev) { struct ci_hdrc_usb2_priv *priv = platform_get_drvdata(pdev); pm_runtime_disable(&pdev->dev); ci_hdrc_remove_device(priv->ci_pdev); clk_disable_unprepare(priv->clk); - - return 0; } static struct platform_driver ci_hdrc_usb2_driver = { .probe = ci_hdrc_usb2_probe, - .remove = ci_hdrc_usb2_remove, + .remove = ci_hdrc_usb2_remove, .driver = { .name = "chipidea-usb2", - .of_match_table = of_match_ptr(ci_hdrc_usb2_of_match), + .of_match_table = ci_hdrc_usb2_of_match, }, }; module_platform_driver(ci_hdrc_usb2_driver); |