Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Generic platform ohci driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright 2007 Michael Buesch <m@bues.ch>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Copyright 2014 Hans de Goede <hdegoede@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * Derived from the OCHI-SSB driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * Derived from the OHCI-PCI driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * Copyright 1999 Roman Weissgaerber
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * Copyright 2000-2002 David Brownell
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * Copyright 1999 Linus Torvalds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * Copyright 1999 Gregory P. Smith
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/hrtimer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <linux/reset.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <linux/usb/ohci_pdriver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include <linux/usb/hcd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #include "ohci.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define DRIVER_DESC "OHCI generic platform driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define OHCI_MAX_CLKS 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define hcd_to_ohci_priv(h) ((struct ohci_platform_priv *)hcd_to_ohci(h)->priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) struct ohci_platform_priv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	struct clk *clks[OHCI_MAX_CLKS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	struct reset_control *resets;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) static const char hcd_name[] = "ohci-platform";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static int ohci_platform_power_on(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	struct usb_hcd *hcd = platform_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	int clk, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	for (clk = 0; clk < OHCI_MAX_CLKS && priv->clks[clk]; clk++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		ret = clk_prepare_enable(priv->clks[clk]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 			goto err_disable_clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) err_disable_clks:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	while (--clk >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		clk_disable_unprepare(priv->clks[clk]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) static void ohci_platform_power_off(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	struct usb_hcd *hcd = platform_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	int clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	for (clk = OHCI_MAX_CLKS - 1; clk >= 0; clk--)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		if (priv->clks[clk])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 			clk_disable_unprepare(priv->clks[clk]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) static struct hc_driver __read_mostly ohci_platform_hc_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) static const struct ohci_driver_overrides platform_overrides __initconst = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	.product_desc =		"Generic Platform OHCI controller",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	.extra_priv_size =	sizeof(struct ohci_platform_priv),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) static struct usb_ohci_pdata ohci_platform_defaults = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	.power_on =		ohci_platform_power_on,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	.power_suspend =	ohci_platform_power_off,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	.power_off =		ohci_platform_power_off,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) static int ohci_platform_probe(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	struct usb_hcd *hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	struct resource *res_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	struct ohci_platform_priv *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	struct ohci_hcd *ohci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	int err, irq, clk = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	if (usb_disabled() || of_machine_is_compatible("rockchip,rk3288"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	 * Use reasonable defaults so platforms don't have to provide these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	 * with DT probing on ARM.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		pdata = &ohci_platform_defaults;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	err = dma_coerce_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	irq = platform_get_irq(dev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	if (irq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		return irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			dev_name(&dev->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	if (!hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	platform_set_drvdata(dev, hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	dev->dev.platform_data = pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	priv = hcd_to_ohci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	ohci = hcd_to_ohci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	if (pdata == &ohci_platform_defaults && dev->dev.of_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		if (of_property_read_bool(dev->dev.of_node, "big-endian-regs"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 			ohci->flags |= OHCI_QUIRK_BE_MMIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		if (of_property_read_bool(dev->dev.of_node, "big-endian-desc"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 			ohci->flags |= OHCI_QUIRK_BE_DESC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		if (of_property_read_bool(dev->dev.of_node, "big-endian"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 			ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 		if (of_property_read_bool(dev->dev.of_node, "no-big-frame-no"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 			ohci->flags |= OHCI_QUIRK_FRAME_NO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		if (of_property_read_bool(dev->dev.of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 					  "remote-wakeup-connected"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 			ohci->hc_control = OHCI_CTRL_RWC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		of_property_read_u32(dev->dev.of_node, "num-ports",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 				     &ohci->num_ports);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		for (clk = 0; clk < OHCI_MAX_CLKS; clk++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 			priv->clks[clk] = of_clk_get(dev->dev.of_node, clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 			if (IS_ERR(priv->clks[clk])) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 				err = PTR_ERR(priv->clks[clk]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 				if (err == -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 					goto err_put_clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 				priv->clks[clk] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		priv->resets = devm_reset_control_array_get_optional_shared(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 								&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		if (IS_ERR(priv->resets)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 			err = PTR_ERR(priv->resets);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			goto err_put_clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		err = reset_control_deassert(priv->resets);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 			goto err_put_clks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	if (pdata->big_endian_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		ohci->flags |= OHCI_QUIRK_BE_DESC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	if (pdata->big_endian_mmio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		ohci->flags |= OHCI_QUIRK_BE_MMIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	if (pdata->no_big_frame_no)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		ohci->flags |= OHCI_QUIRK_FRAME_NO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	if (pdata->num_ports)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		ohci->num_ports = pdata->num_ports;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #ifndef CONFIG_USB_OHCI_BIG_ENDIAN_MMIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	if (ohci->flags & OHCI_QUIRK_BE_MMIO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			"Error: CONFIG_USB_OHCI_BIG_ENDIAN_MMIO not set\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		goto err_reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #ifndef CONFIG_USB_OHCI_BIG_ENDIAN_DESC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	if (ohci->flags & OHCI_QUIRK_BE_DESC) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		dev_err(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 			"Error: CONFIG_USB_OHCI_BIG_ENDIAN_DESC not set\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		goto err_reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	pm_runtime_set_active(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	pm_runtime_enable(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	if (pdata->power_on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		err = pdata->power_on(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 			goto err_reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	if (IS_ERR(hcd->regs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		err = PTR_ERR(hcd->regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		goto err_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	hcd->rsrc_start = res_mem->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	hcd->rsrc_len = resource_size(res_mem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		goto err_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	device_wakeup_enable(hcd->self.controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	platform_set_drvdata(dev, hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) err_power:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	if (pdata->power_off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		pdata->power_off(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) err_reset:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	pm_runtime_disable(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	reset_control_assert(priv->resets);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) err_put_clks:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	while (--clk >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		clk_put(priv->clks[clk]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	if (pdata == &ohci_platform_defaults)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 		dev->dev.platform_data = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) static int ohci_platform_remove(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	struct usb_hcd *hcd = platform_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	int clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	pm_runtime_get_sync(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	usb_remove_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	if (pdata->power_off)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		pdata->power_off(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	reset_control_assert(priv->resets);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	for (clk = 0; clk < OHCI_MAX_CLKS && priv->clks[clk]; clk++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		clk_put(priv->clks[clk]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	pm_runtime_put_sync(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	pm_runtime_disable(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	if (pdata == &ohci_platform_defaults)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		dev->dev.platform_data = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int ohci_platform_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	struct usb_hcd *hcd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	struct usb_ohci_pdata *pdata = dev->platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	struct platform_device *pdev = to_platform_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	bool do_wakeup = device_may_wakeup(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	ret = ohci_suspend(hcd, do_wakeup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	if (pdata->power_suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		pdata->power_suspend(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) static int ohci_platform_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	struct usb_hcd *hcd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	struct usb_ohci_pdata *pdata = dev_get_platdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	struct platform_device *pdev = to_platform_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	if (pdata->power_on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		int err = pdata->power_on(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 		if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 			return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	ohci_resume(hcd, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	pm_runtime_disable(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	pm_runtime_set_active(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	pm_runtime_enable(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) #endif /* CONFIG_PM_SLEEP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) static const struct of_device_id ohci_platform_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	{ .compatible = "generic-ohci", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	{ .compatible = "cavium,octeon-6335-ohci", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	{ .compatible = "ti,ohci-omap3", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) MODULE_DEVICE_TABLE(of, ohci_platform_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static const struct platform_device_id ohci_platform_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	{ "ohci-platform", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) MODULE_DEVICE_TABLE(platform, ohci_platform_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static SIMPLE_DEV_PM_OPS(ohci_platform_pm_ops, ohci_platform_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	ohci_platform_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) static struct platform_driver ohci_platform_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	.id_table	= ohci_platform_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	.probe		= ohci_platform_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	.remove		= ohci_platform_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	.shutdown	= usb_hcd_platform_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 		.name	= "ohci-platform",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		.pm	= &ohci_platform_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 		.of_match_table = ohci_platform_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) static int __init ohci_platform_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	if (usb_disabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	ohci_init_driver(&ohci_platform_hc_driver, &platform_overrides);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	return platform_driver_register(&ohci_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) module_init(ohci_platform_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) static void __exit ohci_platform_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	platform_driver_unregister(&ohci_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) module_exit(ohci_platform_cleanup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) MODULE_DESCRIPTION(DRIVER_DESC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) MODULE_AUTHOR("Hauke Mehrtens");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) MODULE_AUTHOR("Alan Stern");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) MODULE_LICENSE("GPL");