2017-11-03 18:28:30 +08:00
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// SPDX-License-Identifier: GPL-1.0+
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2005-04-17 06:20:36 +08:00
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/*
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* OHCI HCD (Host Controller Driver) for USB.
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*
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* (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
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* (C) Copyright 2000-2005 David Brownell
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* (C) Copyright 2002 Hewlett-Packard Company
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2006-07-31 22:29:39 +08:00
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*
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2005-04-17 06:20:36 +08:00
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* OMAP Bus Glue
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*
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* Modified for OMAP by Tony Lindgren <tony@atomide.com>
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* Based on the 2.4 OMAP OHCI driver originally done by MontaVista Software Inc.
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* and on ohci-sa1111.c by Christopher Hoover <ch@hpl.hp.com>
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*
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* This file is licenced under the GPL.
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*/
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2006-01-08 00:15:52 +08:00
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#include <linux/clk.h>
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2013-09-21 19:08:39 +08:00
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#include <linux/dma-mapping.h>
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2012-06-26 20:10:32 +08:00
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#include <linux/err.h>
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2020-07-20 21:55:24 +08:00
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#include <linux/gpio/consumer.h>
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2013-09-21 19:08:39 +08:00
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#include <linux/io.h>
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#include <linux/jiffies.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/usb/otg.h>
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#include <linux/platform_device.h>
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#include <linux/signal.h>
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#include <linux/usb.h>
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#include <linux/usb/hcd.h>
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#include "ohci.h"
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2005-10-31 07:03:48 +08:00
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2005-04-17 06:20:36 +08:00
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#include <asm/io.h>
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#include <asm/mach-types.h>
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2012-09-20 01:46:56 +08:00
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#include <mach/mux.h>
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2012-06-04 15:56:15 +08:00
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#include <mach/hardware.h>
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#include <mach/usb.h>
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2005-04-17 06:20:36 +08:00
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/* OMAP-1510 OHCI has its own MMU for DMA */
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#define OMAP1510_LB_MEMSIZE 32 /* Should be same as SDRAM size */
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#define OMAP1510_LB_CLOCK_DIV 0xfffec10c
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#define OMAP1510_LB_MMU_CTL 0xfffec208
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#define OMAP1510_LB_MMU_LCK 0xfffec224
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#define OMAP1510_LB_MMU_LD_TLB 0xfffec228
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#define OMAP1510_LB_MMU_CAM_H 0xfffec22c
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#define OMAP1510_LB_MMU_CAM_L 0xfffec230
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#define OMAP1510_LB_MMU_RAM_H 0xfffec234
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#define OMAP1510_LB_MMU_RAM_L 0xfffec238
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2013-09-21 19:08:39 +08:00
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#define DRIVER_DESC "OHCI OMAP driver"
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2005-04-17 06:20:36 +08:00
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2020-07-20 21:55:23 +08:00
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struct ohci_omap_priv {
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struct clk *usb_host_ck;
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struct clk *usb_dc_ck;
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2020-07-20 21:55:24 +08:00
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struct gpio_desc *power;
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struct gpio_desc *overcurrent;
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2020-07-20 21:55:23 +08:00
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};
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2013-09-21 19:08:39 +08:00
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static const char hcd_name[] = "ohci-omap";
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static struct hc_driver __read_mostly ohci_omap_hc_driver;
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2005-04-17 06:20:36 +08:00
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2020-07-20 21:55:23 +08:00
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#define hcd_to_ohci_omap_priv(h) \
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((struct ohci_omap_priv *)hcd_to_ohci(h)->priv)
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static void omap_ohci_clock_power(struct ohci_omap_priv *priv, int on)
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2005-04-17 06:20:36 +08:00
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{
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if (on) {
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2020-07-20 21:55:23 +08:00
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clk_enable(priv->usb_dc_ck);
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clk_enable(priv->usb_host_ck);
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2005-04-17 06:20:36 +08:00
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/* guesstimate for T5 == 1x 32K clock + APLL lock time */
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udelay(100);
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} else {
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2020-07-20 21:55:23 +08:00
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clk_disable(priv->usb_host_ck);
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clk_disable(priv->usb_dc_ck);
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2005-04-17 06:20:36 +08:00
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}
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}
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/*
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* Board specific gang-switched transceiver power on/off.
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* NOTE: OSK supplies power from DC, not battery.
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*/
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2020-07-20 21:55:24 +08:00
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static int omap_ohci_transceiver_power(struct ohci_omap_priv *priv, int on)
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2005-04-17 06:20:36 +08:00
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{
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if (on) {
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if (machine_is_omap_innovator() && cpu_is_omap1510())
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2012-10-03 03:39:09 +08:00
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__raw_writeb(__raw_readb(INNOVATOR_FPGA_CAM_USB_CONTROL)
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2006-07-31 22:29:39 +08:00
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| ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
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2005-04-17 06:20:36 +08:00
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INNOVATOR_FPGA_CAM_USB_CONTROL);
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2020-07-20 21:55:24 +08:00
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else if (priv->power)
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2020-11-30 16:30:33 +08:00
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gpiod_set_value_cansleep(priv->power, 0);
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2005-04-17 06:20:36 +08:00
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} else {
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if (machine_is_omap_innovator() && cpu_is_omap1510())
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2012-10-03 03:39:09 +08:00
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__raw_writeb(__raw_readb(INNOVATOR_FPGA_CAM_USB_CONTROL)
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2006-07-31 22:29:39 +08:00
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& ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)),
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2005-04-17 06:20:36 +08:00
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INNOVATOR_FPGA_CAM_USB_CONTROL);
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2020-07-20 21:55:24 +08:00
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else if (priv->power)
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2020-11-30 16:30:33 +08:00
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gpiod_set_value_cansleep(priv->power, 1);
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2005-04-17 06:20:36 +08:00
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}
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return 0;
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}
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2006-07-31 22:29:39 +08:00
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#ifdef CONFIG_ARCH_OMAP15XX
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2005-04-17 06:20:36 +08:00
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/*
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* OMAP-1510 specific Local Bus clock on/off
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*/
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static int omap_1510_local_bus_power(int on)
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{
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if (on) {
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omap_writel((1 << 1) | (1 << 0), OMAP1510_LB_MMU_CTL);
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udelay(200);
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} else {
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omap_writel(0, OMAP1510_LB_MMU_CTL);
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}
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return 0;
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}
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/*
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* OMAP-1510 specific Local Bus initialization
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* NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE.
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2006-07-31 22:29:39 +08:00
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* See also arch/mach-omap/memory.h for __virt_to_dma() and
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* __dma_to_virt() which need to match with the physical
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2005-04-17 06:20:36 +08:00
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* Local Bus address below.
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*/
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static int omap_1510_local_bus_init(void)
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{
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unsigned int tlb;
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unsigned long lbaddr, physaddr;
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2006-07-31 22:29:39 +08:00
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omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4,
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2005-04-17 06:20:36 +08:00
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OMAP1510_LB_CLOCK_DIV);
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/* Configure the Local Bus MMU table */
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for (tlb = 0; tlb < OMAP1510_LB_MEMSIZE; tlb++) {
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lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET;
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physaddr = tlb * 0x00100000 + PHYS_OFFSET;
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omap_writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H);
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2006-07-31 22:29:39 +08:00
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omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc,
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2005-04-17 06:20:36 +08:00
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OMAP1510_LB_MMU_CAM_L);
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omap_writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H);
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omap_writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L);
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omap_writel(tlb << 4, OMAP1510_LB_MMU_LCK);
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omap_writel(0x1, OMAP1510_LB_MMU_LD_TLB);
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}
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/* Enable the walking table */
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omap_writel(omap_readl(OMAP1510_LB_MMU_CTL) | (1 << 3), OMAP1510_LB_MMU_CTL);
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udelay(200);
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return 0;
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}
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2006-07-31 22:29:39 +08:00
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#else
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#define omap_1510_local_bus_power(x) {}
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#define omap_1510_local_bus_init() {}
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#endif
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2005-04-17 06:20:36 +08:00
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#ifdef CONFIG_USB_OTG
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static void start_hnp(struct ohci_hcd *ohci)
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{
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2012-06-13 20:34:12 +08:00
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struct usb_hcd *hcd = ohci_to_hcd(ohci);
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const unsigned port = hcd->self.otg_port - 1;
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2005-04-17 06:20:36 +08:00
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unsigned long flags;
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2008-07-03 17:24:43 +08:00
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u32 l;
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2005-04-17 06:20:36 +08:00
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2014-09-25 03:05:50 +08:00
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otg_start_hnp(hcd->usb_phy->otg);
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2005-04-17 06:20:36 +08:00
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local_irq_save(flags);
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2014-11-08 09:43:45 +08:00
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hcd->usb_phy->otg->state = OTG_STATE_A_SUSPEND;
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2005-04-17 06:20:36 +08:00
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writel (RH_PS_PSS, &ohci->regs->roothub.portstatus [port]);
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2008-07-03 17:24:43 +08:00
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l = omap_readl(OTG_CTRL);
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l &= ~OTG_A_BUSREQ;
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omap_writel(l, OTG_CTRL);
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2005-04-17 06:20:36 +08:00
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local_irq_restore(flags);
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}
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#endif
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/*-------------------------------------------------------------------------*/
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2013-09-21 19:08:39 +08:00
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static int ohci_omap_reset(struct usb_hcd *hcd)
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2005-04-17 06:20:36 +08:00
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{
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2006-07-31 22:29:39 +08:00
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struct ohci_hcd *ohci = hcd_to_ohci(hcd);
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2013-07-30 18:59:40 +08:00
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struct omap_usb_config *config = dev_get_platdata(hcd->self.controller);
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2020-07-20 21:55:23 +08:00
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struct ohci_omap_priv *priv = hcd_to_ohci_omap_priv(hcd);
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2005-04-17 06:20:36 +08:00
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int need_transceiver = (config->otg != 0);
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int ret;
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2006-07-31 22:29:39 +08:00
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dev_dbg(hcd->self.controller, "starting USB Controller\n");
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2005-04-17 06:20:36 +08:00
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if (config->otg) {
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2013-09-21 19:08:39 +08:00
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hcd->self.otg_port = config->otg;
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2005-04-17 06:20:36 +08:00
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/* default/minimum OTG power budget: 8 mA */
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2013-09-21 19:08:39 +08:00
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hcd->power_budget = 8;
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2005-04-17 06:20:36 +08:00
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}
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/* boards can use OTG transceivers in non-OTG modes */
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need_transceiver = need_transceiver
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|| machine_is_omap_h2() || machine_is_omap_h3();
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2012-04-13 20:34:27 +08:00
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/* XXX OMAP16xx only */
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if (config->ocpi_enable)
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config->ocpi_enable();
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2005-04-17 06:20:36 +08:00
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2008-09-04 06:59:23 +08:00
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#ifdef CONFIG_USB_OTG
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2005-04-17 06:20:36 +08:00
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if (need_transceiver) {
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2014-09-25 03:05:50 +08:00
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hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
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if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
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int status = otg_set_host(hcd->usb_phy->otg,
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2005-04-17 06:20:36 +08:00
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&ohci_to_hcd(ohci)->self);
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2012-06-13 20:34:12 +08:00
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dev_dbg(hcd->self.controller, "init %s phy, status %d\n",
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2014-09-25 03:05:50 +08:00
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hcd->usb_phy->label, status);
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2005-04-17 06:20:36 +08:00
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if (status) {
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2014-09-25 03:05:50 +08:00
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usb_put_phy(hcd->usb_phy);
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2005-04-17 06:20:36 +08:00
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return status;
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}
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} else {
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2017-01-03 04:53:55 +08:00
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return -EPROBE_DEFER;
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2005-04-17 06:20:36 +08:00
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}
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2018-03-04 05:43:03 +08:00
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hcd->skip_phy_initialization = 1;
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2008-07-06 18:26:30 +08:00
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ohci->start_hnp = start_hnp;
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2005-04-17 06:20:36 +08:00
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}
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#endif
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2020-07-20 21:55:23 +08:00
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omap_ohci_clock_power(priv, 1);
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2005-04-17 06:20:36 +08:00
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2008-09-05 07:29:55 +08:00
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if (cpu_is_omap15xx()) {
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2005-04-17 06:20:36 +08:00
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omap_1510_local_bus_power(1);
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omap_1510_local_bus_init();
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}
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2013-09-21 19:08:39 +08:00
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ret = ohci_setup(hcd);
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if (ret < 0)
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2005-04-17 06:20:36 +08:00
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return ret;
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2013-09-21 19:08:39 +08:00
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if (config->otg || config->rwc) {
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ohci->hc_control = OHCI_CTRL_RWC;
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writel(OHCI_CTRL_RWC, &ohci->regs->control);
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}
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2005-04-17 06:20:36 +08:00
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/* board-specific power switching and overcurrent support */
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if (machine_is_omap_osk() || machine_is_omap_innovator()) {
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u32 rh = roothub_a (ohci);
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/* power switching (ganged by default) */
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rh &= ~RH_A_NPS;
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/* TPS2045 switch for internal transceiver (port 1) */
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if (machine_is_omap_osk()) {
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2005-04-25 23:21:31 +08:00
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ohci_to_hcd(ohci)->power_budget = 250;
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2005-04-17 06:20:36 +08:00
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rh &= ~RH_A_NOCP;
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/* gpio9 for overcurrent detction */
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omap_cfg_reg(W8_1610_GPIO9);
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/* for paranoia's sake: disable USB.PUEN */
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omap_cfg_reg(W4_USB_HIGHZ);
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}
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ohci_writel(ohci, rh, &ohci->regs->roothub.a);
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2008-07-07 03:35:01 +08:00
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ohci->flags &= ~OHCI_QUIRK_HUB_POWER;
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2006-07-31 22:29:39 +08:00
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} else if (machine_is_nokia770()) {
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/* We require a self-powered hub, which should have
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* plenty of power. */
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ohci_to_hcd(ohci)->power_budget = 0;
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2005-04-17 06:20:36 +08:00
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}
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2014-09-19 23:32:23 +08:00
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/* FIXME hub_wq hub requests should manage power switching */
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2020-07-20 21:55:24 +08:00
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omap_ohci_transceiver_power(priv, 1);
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2005-04-17 06:20:36 +08:00
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/* board init will have already handled HMC and mux setup.
|
|
|
|
* any external transceiver should already be initialized
|
|
|
|
* too, so all configured ports use the right signaling now.
|
|
|
|
*/
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
/**
|
2016-12-03 11:34:53 +08:00
|
|
|
* ohci_hcd_omap_probe - initialize OMAP-based HCDs
|
2020-10-19 18:06:37 +08:00
|
|
|
* @pdev: USB controller to probe
|
|
|
|
*
|
|
|
|
* Context: task context, might sleep
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
|
|
|
* Allocates basic resources for this USB host controller, and
|
|
|
|
* then invokes the start() method for the HCD associated with it
|
|
|
|
* through the hotplug entry's driver_data.
|
|
|
|
*/
|
2016-12-03 11:34:53 +08:00
|
|
|
static int ohci_hcd_omap_probe(struct platform_device *pdev)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2006-01-20 01:56:29 +08:00
|
|
|
int retval, irq;
|
2005-04-17 06:20:36 +08:00
|
|
|
struct usb_hcd *hcd = 0;
|
2020-07-20 21:55:23 +08:00
|
|
|
struct ohci_omap_priv *priv;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
if (pdev->num_resources != 2) {
|
2013-12-10 20:25:09 +08:00
|
|
|
dev_err(&pdev->dev, "invalid num_resources: %i\n",
|
2005-04-17 06:20:36 +08:00
|
|
|
pdev->num_resources);
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2006-07-31 22:29:39 +08:00
|
|
|
if (pdev->resource[0].flags != IORESOURCE_MEM
|
2005-04-17 06:20:36 +08:00
|
|
|
|| pdev->resource[1].flags != IORESOURCE_IRQ) {
|
2013-12-10 20:25:09 +08:00
|
|
|
dev_err(&pdev->dev, "invalid resource type\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2020-07-20 21:55:23 +08:00
|
|
|
hcd = usb_create_hcd(&ohci_omap_hc_driver, &pdev->dev,
|
|
|
|
dev_name(&pdev->dev));
|
|
|
|
if (!hcd)
|
|
|
|
return -ENOMEM;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2020-07-20 21:55:23 +08:00
|
|
|
hcd->rsrc_start = pdev->resource[0].start;
|
|
|
|
hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
|
|
|
|
priv = hcd_to_ohci_omap_priv(hcd);
|
2006-07-31 22:29:39 +08:00
|
|
|
|
2020-07-20 21:55:24 +08:00
|
|
|
/* Obtain two optional GPIO lines */
|
|
|
|
priv->power = devm_gpiod_get_optional(&pdev->dev, "power", GPIOD_ASIS);
|
|
|
|
if (IS_ERR(priv->power)) {
|
|
|
|
retval = PTR_ERR(priv->power);
|
|
|
|
goto err_put_hcd;
|
|
|
|
}
|
|
|
|
if (priv->power)
|
|
|
|
gpiod_set_consumer_name(priv->power, "OHCI power");
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This "overcurrent" GPIO line isn't really used in the code,
|
|
|
|
* but has a designated hardware function.
|
|
|
|
* TODO: implement proper overcurrent handling.
|
|
|
|
*/
|
|
|
|
priv->overcurrent = devm_gpiod_get_optional(&pdev->dev, "overcurrent",
|
|
|
|
GPIOD_IN);
|
|
|
|
if (IS_ERR(priv->overcurrent)) {
|
|
|
|
retval = PTR_ERR(priv->overcurrent);
|
|
|
|
goto err_put_hcd;
|
|
|
|
}
|
|
|
|
if (priv->overcurrent)
|
|
|
|
gpiod_set_consumer_name(priv->overcurrent, "OHCI overcurrent");
|
|
|
|
|
2020-07-20 21:55:23 +08:00
|
|
|
priv->usb_host_ck = clk_get(&pdev->dev, "usb_hhc_ck");
|
|
|
|
if (IS_ERR(priv->usb_host_ck)) {
|
|
|
|
retval = PTR_ERR(priv->usb_host_ck);
|
|
|
|
goto err_put_hcd;
|
2006-07-31 22:29:39 +08:00
|
|
|
}
|
|
|
|
|
2020-07-20 21:55:23 +08:00
|
|
|
if (!cpu_is_omap15xx())
|
|
|
|
priv->usb_dc_ck = clk_get(&pdev->dev, "usb_dc_ck");
|
|
|
|
else
|
|
|
|
priv->usb_dc_ck = clk_get(&pdev->dev, "lb_ck");
|
2006-07-31 22:29:39 +08:00
|
|
|
|
2020-07-20 21:55:23 +08:00
|
|
|
if (IS_ERR(priv->usb_dc_ck)) {
|
|
|
|
retval = PTR_ERR(priv->usb_dc_ck);
|
|
|
|
goto err_put_host_ck;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
|
|
|
|
dev_dbg(&pdev->dev, "request_mem_region failed\n");
|
|
|
|
retval = -EBUSY;
|
2020-07-20 21:55:23 +08:00
|
|
|
goto err_put_dc_ck;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2008-09-04 21:07:22 +08:00
|
|
|
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
|
|
|
|
if (!hcd->regs) {
|
|
|
|
dev_err(&pdev->dev, "can't ioremap OHCI HCD\n");
|
|
|
|
retval = -ENOMEM;
|
|
|
|
goto err2;
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2006-01-20 01:56:29 +08:00
|
|
|
irq = platform_get_irq(pdev, 0);
|
|
|
|
if (irq < 0) {
|
|
|
|
retval = -ENXIO;
|
2008-09-04 21:07:22 +08:00
|
|
|
goto err3;
|
2006-01-20 01:56:29 +08:00
|
|
|
}
|
2011-09-07 16:10:52 +08:00
|
|
|
retval = usb_add_hcd(hcd, irq, 0);
|
2006-07-31 22:29:39 +08:00
|
|
|
if (retval)
|
2008-09-04 21:07:22 +08:00
|
|
|
goto err3;
|
2006-07-31 22:29:39 +08:00
|
|
|
|
2013-11-05 10:46:02 +08:00
|
|
|
device_wakeup_enable(hcd->self.controller);
|
2006-07-31 22:29:39 +08:00
|
|
|
return 0;
|
2008-09-04 21:07:22 +08:00
|
|
|
err3:
|
|
|
|
iounmap(hcd->regs);
|
2005-04-17 06:20:36 +08:00
|
|
|
err2:
|
|
|
|
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
2020-07-20 21:55:23 +08:00
|
|
|
err_put_dc_ck:
|
|
|
|
clk_put(priv->usb_dc_ck);
|
|
|
|
err_put_host_ck:
|
|
|
|
clk_put(priv->usb_host_ck);
|
|
|
|
err_put_hcd:
|
2005-04-17 06:20:36 +08:00
|
|
|
usb_put_hcd(hcd);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* may be called with controller, bus, and devices active */
|
|
|
|
|
|
|
|
/**
|
2016-12-03 11:34:53 +08:00
|
|
|
* ohci_hcd_omap_remove - shutdown processing for OMAP-based HCDs
|
2020-10-19 18:06:37 +08:00
|
|
|
* @pdev: USB Host Controller being removed
|
|
|
|
*
|
|
|
|
* Context: task context, might sleep
|
2005-04-17 06:20:36 +08:00
|
|
|
*
|
2016-12-03 11:34:53 +08:00
|
|
|
* Reverses the effect of ohci_hcd_omap_probe(), first invoking
|
2005-04-17 06:20:36 +08:00
|
|
|
* the HCD's stop() method. It is always called from a thread
|
|
|
|
* context, normally "rmmod", "apmd", or something similar.
|
|
|
|
*/
|
2016-12-03 11:34:53 +08:00
|
|
|
static int ohci_hcd_omap_remove(struct platform_device *pdev)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2016-12-03 11:34:53 +08:00
|
|
|
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
2020-07-20 21:55:23 +08:00
|
|
|
struct ohci_omap_priv *priv = hcd_to_ohci_omap_priv(hcd);
|
2016-12-03 11:34:53 +08:00
|
|
|
|
2013-09-21 19:08:39 +08:00
|
|
|
dev_dbg(hcd->self.controller, "stopping USB Controller\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
usb_remove_hcd(hcd);
|
2020-07-20 21:55:23 +08:00
|
|
|
omap_ohci_clock_power(priv, 0);
|
2014-09-25 03:05:50 +08:00
|
|
|
if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
|
|
|
|
(void) otg_set_host(hcd->usb_phy->otg, 0);
|
|
|
|
usb_put_phy(hcd->usb_phy);
|
2006-07-31 22:29:39 +08:00
|
|
|
}
|
2008-09-04 21:07:22 +08:00
|
|
|
iounmap(hcd->regs);
|
2005-04-17 06:20:36 +08:00
|
|
|
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
2020-07-20 21:55:23 +08:00
|
|
|
clk_put(priv->usb_dc_ck);
|
|
|
|
clk_put(priv->usb_host_ck);
|
2005-04-17 06:20:36 +08:00
|
|
|
usb_put_hcd(hcd);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
|
2013-10-04 12:28:13 +08:00
|
|
|
static int ohci_omap_suspend(struct platform_device *pdev, pm_message_t message)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2013-10-04 12:28:13 +08:00
|
|
|
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
|
|
|
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
2020-07-20 21:55:23 +08:00
|
|
|
struct ohci_omap_priv *priv = hcd_to_ohci_omap_priv(hcd);
|
2013-10-04 12:28:13 +08:00
|
|
|
bool do_wakeup = device_may_wakeup(&pdev->dev);
|
|
|
|
int ret;
|
2005-09-23 13:42:53 +08:00
|
|
|
|
|
|
|
if (time_before(jiffies, ohci->next_statechange))
|
|
|
|
msleep(5);
|
|
|
|
ohci->next_statechange = jiffies;
|
|
|
|
|
2013-10-04 12:28:13 +08:00
|
|
|
ret = ohci_suspend(hcd, do_wakeup);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
2020-07-20 21:55:23 +08:00
|
|
|
omap_ohci_clock_power(priv, 0);
|
2013-10-04 12:28:13 +08:00
|
|
|
return ret;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2005-11-10 06:32:44 +08:00
|
|
|
static int ohci_omap_resume(struct platform_device *dev)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-04-04 06:03:17 +08:00
|
|
|
struct usb_hcd *hcd = platform_get_drvdata(dev);
|
|
|
|
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
2020-07-20 21:55:23 +08:00
|
|
|
struct ohci_omap_priv *priv = hcd_to_ohci_omap_priv(hcd);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-06-29 21:59:14 +08:00
|
|
|
if (time_before(jiffies, ohci->next_statechange))
|
|
|
|
msleep(5);
|
|
|
|
ohci->next_statechange = jiffies;
|
2005-09-23 13:42:53 +08:00
|
|
|
|
2020-07-20 21:55:23 +08:00
|
|
|
omap_ohci_clock_power(priv, 1);
|
2012-10-08 21:11:29 +08:00
|
|
|
ohci_resume(hcd, false);
|
2005-09-23 13:42:53 +08:00
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Driver definition to register with the OMAP bus
|
|
|
|
*/
|
2005-11-10 06:32:44 +08:00
|
|
|
static struct platform_driver ohci_hcd_omap_driver = {
|
2016-12-03 11:34:53 +08:00
|
|
|
.probe = ohci_hcd_omap_probe,
|
|
|
|
.remove = ohci_hcd_omap_remove,
|
2006-12-05 19:18:31 +08:00
|
|
|
.shutdown = usb_hcd_platform_shutdown,
|
2005-04-17 06:20:36 +08:00
|
|
|
#ifdef CONFIG_PM
|
|
|
|
.suspend = ohci_omap_suspend,
|
|
|
|
.resume = ohci_omap_resume,
|
|
|
|
#endif
|
2005-11-10 06:32:44 +08:00
|
|
|
.driver = {
|
|
|
|
.name = "ohci",
|
|
|
|
},
|
2005-04-17 06:20:36 +08:00
|
|
|
};
|
|
|
|
|
2013-09-21 19:08:39 +08:00
|
|
|
static const struct ohci_driver_overrides omap_overrides __initconst = {
|
|
|
|
.product_desc = "OMAP OHCI",
|
2020-07-20 21:55:23 +08:00
|
|
|
.reset = ohci_omap_reset,
|
|
|
|
.extra_priv_size = sizeof(struct ohci_omap_priv),
|
2013-09-21 19:08:39 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
static int __init ohci_omap_init(void)
|
|
|
|
{
|
|
|
|
if (usb_disabled())
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
|
|
|
|
|
|
|
|
ohci_init_driver(&ohci_omap_hc_driver, &omap_overrides);
|
|
|
|
return platform_driver_register(&ohci_hcd_omap_driver);
|
|
|
|
}
|
|
|
|
module_init(ohci_omap_init);
|
|
|
|
|
|
|
|
static void __exit ohci_omap_cleanup(void)
|
|
|
|
{
|
|
|
|
platform_driver_unregister(&ohci_hcd_omap_driver);
|
|
|
|
}
|
|
|
|
module_exit(ohci_omap_cleanup);
|
|
|
|
|
|
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
2008-04-11 12:29:22 +08:00
|
|
|
MODULE_ALIAS("platform:ohci");
|
2013-09-21 19:08:39 +08:00
|
|
|
MODULE_LICENSE("GPL");
|