Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-1.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * EHCI HCD (Host Controller Driver) for USB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Bus Glue for PPC On-Chip EHCI driver on the of_platform bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Tested on AMCC PPC 440EPx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Valentine Barshak <vbarshak@ru.mvista.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * Based on "ehci-ppc-soc.c" by Stefan Roese <sr@denx.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * and "ohci-ppc-of.c" by Sylvain Munaut <tnt@246tNt.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * This file is licenced under the GPL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/signal.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/of_irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) static const struct hc_driver ehci_ppc_of_hc_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	.description		= hcd_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	.product_desc		= "OF EHCI",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	.hcd_priv_size		= sizeof(struct ehci_hcd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	 * generic hardware linkage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	.irq			= ehci_irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	.flags			= HCD_MEMORY | HCD_DMA | HCD_USB2 | HCD_BH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	 * basic lifecycle operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	.reset			= ehci_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	.start			= ehci_run,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	.stop			= ehci_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	.shutdown		= ehci_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	 * managing i/o requests and associated device resources
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	.urb_enqueue		= ehci_urb_enqueue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	.urb_dequeue		= ehci_urb_dequeue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	.endpoint_disable	= ehci_endpoint_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	.endpoint_reset		= ehci_endpoint_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	 * scheduling support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	.get_frame_number	= ehci_get_frame,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	 * root hub support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	.hub_status_data	= ehci_hub_status_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	.hub_control		= ehci_hub_control,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) #ifdef	CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	.bus_suspend		= ehci_bus_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	.bus_resume		= ehci_bus_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	.relinquish_port	= ehci_relinquish_port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	.port_handed_over	= ehci_port_handed_over,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74)  * 440EPx Errata USBH_3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75)  * Fix: Enable Break Memory Transfer (BMT) in INSNREG3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define PPC440EPX_EHCI0_INSREG_BMT	(0x1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) ppc44x_enable_bmt(struct device_node *dn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	__iomem u32 *insreg_virt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	insreg_virt = of_iomap(dn, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	if (!insreg_virt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		return  -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	out_be32(insreg_virt + 3, PPC440EPX_EHCI0_INSREG_BMT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	iounmap(insreg_virt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) static int ehci_hcd_ppc_of_probe(struct platform_device *op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	struct device_node *dn = op->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	struct usb_hcd *hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	struct ehci_hcd	*ehci = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	struct resource res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	int rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	struct device_node *np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	if (usb_disabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	dev_dbg(&op->dev, "initializing PPC-OF USB Controller\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	rv = of_address_to_resource(dn, 0, &res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	hcd = usb_create_hcd(&ehci_ppc_of_hc_driver, &op->dev, "PPC-OF USB");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	if (!hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	hcd->rsrc_start = res.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	hcd->rsrc_len = resource_size(&res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	irq = irq_of_parse_and_map(dn, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (irq == NO_IRQ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 			__FILE__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		rv = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		goto err_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	hcd->regs = devm_ioremap_resource(&op->dev, &res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	if (IS_ERR(hcd->regs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		rv = PTR_ERR(hcd->regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		goto err_ioremap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	ehci = hcd_to_ehci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	np = of_find_compatible_node(NULL, NULL, "ibm,usb-ohci-440epx");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	if (np != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		/* claim we really affected by usb23 erratum */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		if (!of_address_to_resource(np, 0, &res))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 			ehci->ohci_hcctrl_reg =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 				devm_ioremap(&op->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 					     res.start + OHCI_HCCTRL_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 					     OHCI_HCCTRL_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 			pr_debug("%s: no ohci offset in fdt\n", __FILE__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		if (!ehci->ohci_hcctrl_reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 			pr_debug("%s: ioremap for ohci hcctrl failed\n", __FILE__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 			ehci->has_amcc_usb23 = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	if (of_get_property(dn, "big-endian", NULL)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		ehci->big_endian_mmio = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		ehci->big_endian_desc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	if (of_get_property(dn, "big-endian-regs", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		ehci->big_endian_mmio = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	if (of_get_property(dn, "big-endian-desc", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		ehci->big_endian_desc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	ehci->caps = hcd->regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	if (of_device_is_compatible(dn, "ibm,usb-ehci-440epx")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		rv = ppc44x_enable_bmt(dn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		ehci_dbg(ehci, "Break Memory Transfer (BMT) is %senabled!\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 				rv ? "NOT ": "");
^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) 	rv = usb_add_hcd(hcd, irq, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		goto err_ioremap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	device_wakeup_enable(hcd->self.controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) err_ioremap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	irq_dispose_mapping(irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) err_irq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static int ehci_hcd_ppc_of_remove(struct platform_device *op)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	struct usb_hcd *hcd = platform_get_drvdata(op);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	struct device_node *np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	struct resource res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	dev_dbg(&op->dev, "stopping PPC-OF USB Controller\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	usb_remove_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	irq_dispose_mapping(hcd->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	/* use request_mem_region to test if the ohci driver is loaded.  if so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	 * ensure the ohci core is operational.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	if (ehci->has_amcc_usb23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		np = of_find_compatible_node(NULL, NULL, "ibm,usb-ohci-440epx");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		if (np != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			if (!of_address_to_resource(np, 0, &res))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 				if (!request_mem_region(res.start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 							    0x4, hcd_name))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 					set_ohci_hcfs(ehci, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 				else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 					release_mem_region(res.start, 0x4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 			else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 				pr_debug("%s: no ohci offset in fdt\n", __FILE__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 			of_node_put(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static const struct of_device_id ehci_hcd_ppc_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		.compatible = "usb-ehci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) MODULE_DEVICE_TABLE(of, ehci_hcd_ppc_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static struct platform_driver ehci_hcd_ppc_of_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	.probe		= ehci_hcd_ppc_of_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	.remove		= ehci_hcd_ppc_of_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	.shutdown	= usb_hcd_platform_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		.name = "ppc-of-ehci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		.of_match_table = ehci_hcd_ppc_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) };