diff options
Diffstat (limited to 'drivers/mfd/omap-usb-tll.c')
| -rw-r--r-- | drivers/mfd/omap-usb-tll.c | 42 |
1 files changed, 11 insertions, 31 deletions
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c index 446713dbee27..0f7fdb99c809 100644 --- a/drivers/mfd/omap-usb-tll.c +++ b/drivers/mfd/omap-usb-tll.c @@ -1,21 +1,10 @@ -/** +// SPDX-License-Identifier: GPL-2.0-only +/* * omap-usb-tll.c - The USB TLL driver for OMAP EHCI & OHCI * - * Copyright (C) 2012-2013 Texas Instruments Incorporated - http://www.ti.com + * Copyright (C) 2012-2013 Texas Instruments Incorporated - https://www.ti.com * Author: Keshava Munegowda <keshava_mgowda@ti.com> * Author: Roger Quadros <rogerq@ti.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 of - * the License as published by the Free Software Foundation. - * - * 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, see <http://www.gnu.org/licenses/>. */ #include <linux/kernel.h> #include <linux/module.h> @@ -109,8 +98,8 @@ struct usbtll_omap { void __iomem *base; - int nch; /* num. of channels */ - struct clk *ch_clk[0]; /* must be the last member */ + int nch; + struct clk *ch_clk[] __counted_by(nch); }; /*-------------------------------------------------------------------------*/ @@ -136,11 +125,6 @@ static inline void usbtll_writeb(void __iomem *base, u32 reg, u8 val) writeb_relaxed(val, base + reg); } -static inline u8 usbtll_readb(void __iomem *base, u32 reg) -{ - return readb_relaxed(base + reg); -} - /*-------------------------------------------------------------------------*/ static bool is_ohci_port(enum usbhs_omap_port_mode pmode) @@ -210,19 +194,19 @@ static unsigned ohci_omap3_fslsmode(enum usbhs_omap_port_mode mode) * usbtll_omap_probe - initialize TI-based HCDs * * Allocates basic resources for this USB host controller. + * + * @pdev: Pointer to this device's platform device structure */ static int usbtll_omap_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct resource *res; struct usbtll_omap *tll; void __iomem *base; int i, nch, ver; dev_dbg(dev, "starting TI HSUSB TLL Controller\n"); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - base = devm_ioremap_resource(dev, res); + base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) return PTR_ERR(base); @@ -246,8 +230,7 @@ static int usbtll_omap_probe(struct platform_device *pdev) break; } - tll = devm_kzalloc(dev, sizeof(*tll) + sizeof(tll->ch_clk[nch]), - GFP_KERNEL); + tll = devm_kzalloc(dev, struct_size(tll, ch_clk, nch), GFP_KERNEL); if (!tll) { pm_runtime_put_sync(dev); pm_runtime_disable(dev); @@ -286,7 +269,7 @@ static int usbtll_omap_probe(struct platform_device *pdev) * * Reverses the effect of usbtll_omap_probe(). */ -static int usbtll_omap_remove(struct platform_device *pdev) +static void usbtll_omap_remove(struct platform_device *pdev) { struct usbtll_omap *tll = platform_get_drvdata(pdev); int i; @@ -303,7 +286,6 @@ static int usbtll_omap_remove(struct platform_device *pdev) } pm_runtime_disable(&pdev->dev); - return 0; } static const struct of_device_id usbtll_omap_dt_ids[] = { @@ -315,7 +297,7 @@ MODULE_DEVICE_TABLE(of, usbtll_omap_dt_ids); static struct platform_driver usbtll_omap_driver = { .driver = { - .name = (char *)usbtll_driver_name, + .name = usbtll_driver_name, .of_match_table = usbtll_omap_dt_ids, }, .probe = usbtll_omap_probe, @@ -459,8 +441,6 @@ EXPORT_SYMBOL_GPL(omap_tll_disable); MODULE_AUTHOR("Keshava Munegowda <keshava_mgowda@ti.com>"); MODULE_AUTHOR("Roger Quadros <rogerq@ti.com>"); -MODULE_ALIAS("platform:" USBHS_DRIVER_NAME); -MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("usb tll driver for TI OMAP EHCI and OHCI controllers"); static int __init omap_usbtll_drvinit(void) |