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)  * xhci-plat.c - xHCI host controller driver platform Bus Glue.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * A lot of code borrowed from the Linux xHCI driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/usb/phy.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/usb/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include "xhci.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include "xhci-plat.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include "xhci-mvebu.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include "xhci-rcar.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) static struct hc_driver __read_mostly xhci_plat_hc_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) static int xhci_plat_setup(struct usb_hcd *hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) static int xhci_plat_start(struct usb_hcd *hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) static const struct xhci_driver_overrides xhci_plat_overrides __initconst = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	.extra_priv_size = sizeof(struct xhci_plat_priv),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	.reset = xhci_plat_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	.start = xhci_plat_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) static void xhci_priv_plat_start(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	if (priv->plat_start)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		priv->plat_start(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) static int xhci_priv_plat_setup(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	if (!priv->plat_setup)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	return priv->plat_setup(hcd);
^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) static int xhci_priv_init_quirk(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	if (!priv->init_quirk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	return priv->init_quirk(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) static int xhci_priv_suspend_quirk(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	if (!priv->suspend_quirk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	return priv->suspend_quirk(hcd);
^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 int xhci_priv_resume_quirk(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	if (!priv->resume_quirk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	return priv->resume_quirk(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) static void xhci_plat_quirks(struct device *dev, struct xhci_hcd *xhci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	struct xhci_plat_priv *priv = xhci_to_priv(xhci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	 * As of now platform drivers don't provide MSI support so we ensure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	 * here that the generic code does not try to make a pci_dev from our
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	 * dev struct in order to setup MSI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	xhci->quirks |= XHCI_PLAT | priv->quirks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) /* called during probe() after chip reset completes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static int xhci_plat_setup(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	ret = xhci_priv_init_quirk(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	return xhci_gen_setup(hcd, xhci_plat_quirks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static int xhci_plat_start(struct usb_hcd *hcd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	xhci_priv_plat_start(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	return xhci_run(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static const struct xhci_plat_priv xhci_plat_marvell_armada = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	.init_quirk = xhci_mvebu_mbus_init_quirk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static const struct xhci_plat_priv xhci_plat_marvell_armada3700 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	.plat_setup = xhci_mvebu_a3700_plat_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	.init_quirk = xhci_mvebu_a3700_init_quirk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	SET_XHCI_PLAT_PRIV_FOR_RCAR(XHCI_RCAR_FIRMWARE_NAME_V1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	SET_XHCI_PLAT_PRIV_FOR_RCAR(XHCI_RCAR_FIRMWARE_NAME_V3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static const struct xhci_plat_priv xhci_plat_brcm = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	.quirks = XHCI_RESET_ON_RESUME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) static const struct of_device_id usb_xhci_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		.compatible = "generic-xhci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		.compatible = "xhci-platform",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) #ifndef CONFIG_ARCH_ROCKCHIP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		.compatible = "marvell,armada-375-xhci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 		.data = &xhci_plat_marvell_armada,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		.compatible = "marvell,armada-380-xhci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		.data = &xhci_plat_marvell_armada,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		.compatible = "marvell,armada3700-xhci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		.data = &xhci_plat_marvell_armada3700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		.compatible = "renesas,xhci-r8a7790",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		.data = &xhci_plat_renesas_rcar_gen2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		.compatible = "renesas,xhci-r8a7791",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		.data = &xhci_plat_renesas_rcar_gen2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		.compatible = "renesas,xhci-r8a7793",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 		.data = &xhci_plat_renesas_rcar_gen2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		.compatible = "renesas,xhci-r8a7795",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		.data = &xhci_plat_renesas_rcar_gen3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		.compatible = "renesas,xhci-r8a7796",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		.data = &xhci_plat_renesas_rcar_gen3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		.compatible = "renesas,rcar-gen2-xhci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		.data = &xhci_plat_renesas_rcar_gen2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		.compatible = "renesas,rcar-gen3-xhci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		.data = &xhci_plat_renesas_rcar_gen3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		.compatible = "brcm,xhci-brcm-v2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		.data = &xhci_plat_brcm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	}, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		.compatible = "brcm,bcm7445-xhci",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		.data = &xhci_plat_brcm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #endif
^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) MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static struct xhci_plat_priv_overwrite xhci_plat_vendor_overwrite;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) int xhci_plat_register_vendor_ops(struct xhci_vendor_ops *vendor_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	if (vendor_ops == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	xhci_plat_vendor_overwrite.vendor_ops = vendor_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) EXPORT_SYMBOL_GPL(xhci_plat_register_vendor_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static int xhci_vendor_init(struct xhci_hcd *xhci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	struct xhci_vendor_ops *ops = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	if (xhci_plat_vendor_overwrite.vendor_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		ops = xhci->vendor_ops = xhci_plat_vendor_overwrite.vendor_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	if (ops && ops->vendor_init)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		return ops->vendor_init(xhci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static void xhci_vendor_cleanup(struct xhci_hcd *xhci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	struct xhci_vendor_ops *ops = xhci_vendor_get_ops(xhci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	if (ops && ops->vendor_cleanup)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		ops->vendor_cleanup(xhci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	xhci->vendor_ops = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static int xhci_plat_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	const struct xhci_plat_priv *priv_match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	const struct hc_driver	*driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	struct device		*sysdev, *tmpdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	struct xhci_hcd		*xhci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	struct resource         *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	struct usb_hcd		*hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	int			ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	int			irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	struct xhci_plat_priv	*priv = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	if (usb_disabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	driver = &xhci_plat_hc_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	irq = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	if (irq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		return irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	 * sysdev must point to a device that is known to the system firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	 * or PCI hardware. We handle these three cases here:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	 * 1. xhci_plat comes from firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	 * 2. xhci_plat is child of a device from firmware (dwc3-plat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	 * 3. xhci_plat is grandchild of a pci device (dwc3-pci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	for (sysdev = &pdev->dev; sysdev; sysdev = sysdev->parent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		if (is_of_node(sysdev->fwnode) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			is_acpi_device_node(sysdev->fwnode))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) #ifdef CONFIG_PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 		else if (sysdev->bus == &pci_bus_type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	if (!sysdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 		sysdev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	/* Try to set 64-bit DMA first */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	if (WARN_ON(!sysdev->dma_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		/* Platform did not initialize dma_mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		ret = dma_coerce_mask_and_coherent(sysdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 						   DMA_BIT_MASK(64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	/* If seting 64-bit DMA mask fails, fall back to 32-bit DMA mask */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	pm_runtime_set_active(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	pm_runtime_enable(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	pm_runtime_get_noresume(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 			       dev_name(&pdev->dev), NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	if (!hcd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 		goto disable_runtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	if (IS_ERR(hcd->regs)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 		ret = PTR_ERR(hcd->regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		goto put_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	hcd->rsrc_start = res->start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	hcd->rsrc_len = resource_size(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	xhci = hcd_to_xhci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	 * Not all platforms have clks so it is not an error if the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	 * clock do not exist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	xhci->reg_clk = devm_clk_get_optional(&pdev->dev, "reg");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	if (IS_ERR(xhci->reg_clk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 		ret = PTR_ERR(xhci->reg_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 		goto put_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	ret = clk_prepare_enable(xhci->reg_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		goto put_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	xhci->clk = devm_clk_get_optional(&pdev->dev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	if (IS_ERR(xhci->clk)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		ret = PTR_ERR(xhci->clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 		goto disable_reg_clk;
^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) 	ret = clk_prepare_enable(xhci->clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		goto disable_reg_clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	if (pdev->dev.of_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 		priv_match = of_device_get_match_data(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		priv_match = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	if (priv_match) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 		priv = hcd_to_xhci_priv(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 		/* Just copy data for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		*priv = *priv_match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	device_set_wakeup_capable(&pdev->dev, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	xhci->main_hcd = hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	xhci->shared_hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 			dev_name(&pdev->dev), hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	if (!xhci->shared_hcd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		goto disable_clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	/* imod_interval is the interrupt moderation value in nanoseconds. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 	xhci->imod_interval = 40000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	/* Iterate over all parent nodes for finding quirks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	for (tmpdev = &pdev->dev; tmpdev; tmpdev = tmpdev->parent) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 		if (device_property_read_bool(tmpdev, "usb2-lpm-disable"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 			xhci->quirks |= XHCI_HW_LPM_DISABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 		if (device_property_read_bool(tmpdev, "usb3-lpm-capable"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 			xhci->quirks |= XHCI_LPM_SUPPORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		if (device_property_read_bool(tmpdev, "quirk-broken-port-ped"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 			xhci->quirks |= XHCI_BROKEN_PORT_PED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		if (device_property_read_bool(tmpdev, "quirk-skip-phy-init"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 			xhci->quirks |= XHCI_SKIP_PHY_INIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 		if (device_property_read_bool(tmpdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 					      "xhci-u2-broken-suspend"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 			xhci->quirks |= XHCI_U2_BROKEN_SUSPEND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 		device_property_read_u32(tmpdev, "imod-interval-ns",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 					 &xhci->imod_interval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	if (IS_ERR(hcd->usb_phy)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 		ret = PTR_ERR(hcd->usb_phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 		if (ret == -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 			goto put_usb3_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 		hcd->usb_phy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 		ret = usb_phy_init(hcd->usb_phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 			goto put_usb3_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	ret = xhci_vendor_init(xhci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 		goto disable_usb_phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	xhci->shared_hcd->tpl_support = hcd->tpl_support;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	if (priv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 		ret = xhci_priv_plat_setup(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 			goto disable_usb_phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	if ((xhci->quirks & XHCI_SKIP_PHY_INIT) || (priv && (priv->quirks & XHCI_SKIP_PHY_INIT)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 		hcd->skip_phy_initialization = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 	if (priv && (priv->quirks & XHCI_SG_TRB_CACHE_SIZE_QUIRK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 		xhci->quirks |= XHCI_SG_TRB_CACHE_SIZE_QUIRK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 		goto disable_usb_phy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 	if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 		xhci->shared_hcd->can_do_streams = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 		goto dealloc_usb2_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 	device_enable_async_suspend(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 	pm_runtime_put_noidle(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	 * Prevent runtime pm from being on as default, users should enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	 * runtime pm using power/control in sysfs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	pm_runtime_forbid(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) dealloc_usb2_hcd:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	usb_remove_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) disable_usb_phy:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	usb_phy_shutdown(hcd->usb_phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) put_usb3_hcd:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 	usb_put_hcd(xhci->shared_hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) disable_clk:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 	clk_disable_unprepare(xhci->clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) disable_reg_clk:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 	clk_disable_unprepare(xhci->reg_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) put_hcd:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) disable_runtime:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 	pm_runtime_put_noidle(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 	pm_runtime_disable(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) static int xhci_plat_remove(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 	struct usb_hcd	*hcd = platform_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 	struct clk *clk = xhci->clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 	struct clk *reg_clk = xhci->reg_clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 	struct usb_hcd *shared_hcd = xhci->shared_hcd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 	pm_runtime_get_sync(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 	xhci->xhc_state |= XHCI_STATE_REMOVING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 	usb_remove_hcd(shared_hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 	xhci->shared_hcd = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) 	usb_phy_shutdown(hcd->usb_phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) 	usb_remove_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 	xhci_vendor_cleanup(xhci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 	usb_put_hcd(shared_hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 	clk_disable_unprepare(clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 	clk_disable_unprepare(reg_clk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 	usb_put_hcd(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 	pm_runtime_disable(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 	pm_runtime_put_noidle(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 	pm_runtime_set_suspended(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) static int __maybe_unused xhci_plat_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 	struct usb_hcd	*hcd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 	if (pm_runtime_suspended(dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 		pm_runtime_resume(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 	ret = xhci_priv_suspend_quirk(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 	 * xhci_suspend() needs `do_wakeup` to know whether host is allowed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 	 * to do wakeup during suspend.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) 	return xhci_suspend(xhci, device_may_wakeup(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) static int __maybe_unused xhci_plat_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 	struct usb_hcd	*hcd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 	ret = xhci_priv_resume_quirk(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 	ret = xhci_resume(xhci, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) 	pm_runtime_disable(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) 	pm_runtime_set_active(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) 	pm_runtime_enable(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) static int __maybe_unused xhci_plat_runtime_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 	struct usb_hcd  *hcd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) 	ret = xhci_priv_suspend_quirk(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) 	return xhci_suspend(xhci, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) static int __maybe_unused xhci_plat_runtime_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) 	struct usb_hcd  *hcd = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) 	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) 	return xhci_resume(xhci, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) static const struct dev_pm_ops xhci_plat_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) 	SET_SYSTEM_SLEEP_PM_OPS(xhci_plat_suspend, xhci_plat_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 	SET_RUNTIME_PM_OPS(xhci_plat_runtime_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) 			   xhci_plat_runtime_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 			   NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static const struct acpi_device_id usb_xhci_acpi_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) 	/* XHCI-compliant USB Controller */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) 	{ "PNP0D10", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) static struct platform_driver usb_xhci_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) 	.probe	= xhci_plat_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) 	.remove	= xhci_plat_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) 	.shutdown = usb_hcd_platform_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) 	.driver	= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) 		.name = "xhci-hcd",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) 		.pm = &xhci_plat_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) 		.of_match_table = of_match_ptr(usb_xhci_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) 		.acpi_match_table = ACPI_PTR(usb_xhci_acpi_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) MODULE_ALIAS("platform:xhci-hcd");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) static int __init xhci_plat_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) 	xhci_init_driver(&xhci_plat_hc_driver, &xhci_plat_overrides);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) 	return platform_driver_register(&usb_xhci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) module_init(xhci_plat_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) static void __exit xhci_plat_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) 	platform_driver_unregister(&usb_xhci_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) module_exit(xhci_plat_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) MODULE_DESCRIPTION("xHCI Platform Host Controller Driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) MODULE_LICENSE("GPL");