^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) * Copyright (C) 2005-2007 by Texas Instruments
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Some code has been taken from tusb6010.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyrights for that are attributable to:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2006 Nokia Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Tony Lindgren <tony@atomide.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * This file is part of the Inventra Controller Driver for Linux.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/usb/musb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/phy/omap_control_phy.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include "musb_core.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include "omap2430.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct omap2430_glue {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct platform_device *musb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) enum musb_vbus_id_status status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct work_struct omap_musb_mailbox_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct device *control_otghs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define glue_to_musb(g) platform_get_drvdata(g->musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static struct omap2430_glue *_glue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static inline void omap2430_low_level_exit(struct musb *musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) u32 l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /* in any role */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) l = musb_readl(musb->mregs, OTG_FORCESTDBY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) l |= ENABLEFORCE; /* enable MSTANDBY */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) musb_writel(musb->mregs, OTG_FORCESTDBY, l);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static inline void omap2430_low_level_init(struct musb *musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) u32 l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) l = musb_readl(musb->mregs, OTG_FORCESTDBY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) l &= ~ENABLEFORCE; /* disable MSTANDBY */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) musb_writel(musb->mregs, OTG_FORCESTDBY, l);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static int omap2430_musb_mailbox(enum musb_vbus_id_status status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct omap2430_glue *glue = _glue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (!glue) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) pr_err("%s: musb core is not yet initialized\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return -EPROBE_DEFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) glue->status = status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (!glue_to_musb(glue)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) pr_err("%s: musb core is not yet ready\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) return -EPROBE_DEFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) schedule_work(&glue->omap_musb_mailbox_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * HDRC controls CPEN, but beware current surges during device connect.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * They can trigger transient overcurrent conditions that must be ignored.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * Note that we're skipping A_WAIT_VFALL -> A_IDLE and jumping right to B_IDLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * as set by musb_set_peripheral().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static void omap_musb_set_mailbox(struct omap2430_glue *glue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct musb *musb = glue_to_musb(glue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) pm_runtime_get_sync(musb->controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) dev_dbg(musb->controller, "VBUS %s, devctl %02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) usb_otg_state_string(musb->xceiv->otg->state),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) musb_readb(musb->mregs, MUSB_DEVCTL));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) switch (glue->status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) case MUSB_ID_GROUND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) dev_dbg(musb->controller, "ID GND\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) switch (musb->xceiv->otg->state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) case OTG_STATE_A_IDLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) error = musb_set_host(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) case OTG_STATE_A_WAIT_VRISE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) case OTG_STATE_A_WAIT_BCON:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) case OTG_STATE_A_HOST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * On multiple ID ground interrupts just keep enabling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * VBUS. At least cpcap VBUS shuts down otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) otg_set_vbus(musb->xceiv->otg, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) musb->xceiv->otg->state = OTG_STATE_A_IDLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) musb->xceiv->last_event = USB_EVENT_ID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (musb->gadget_driver) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) omap_control_usb_set_mode(glue->control_otghs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) USB_MODE_HOST);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) otg_set_vbus(musb->xceiv->otg, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) case MUSB_VBUS_VALID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) dev_dbg(musb->controller, "VBUS Connect\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) musb->xceiv->otg->state = OTG_STATE_B_IDLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) musb->xceiv->last_event = USB_EVENT_VBUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) case MUSB_ID_FLOAT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) case MUSB_VBUS_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) dev_dbg(musb->controller, "VBUS Disconnect\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) musb->xceiv->last_event = USB_EVENT_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) musb_set_peripheral(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) otg_set_vbus(musb->xceiv->otg, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) omap_control_usb_set_mode(glue->control_otghs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) USB_MODE_DISCONNECT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) dev_dbg(musb->controller, "ID float\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) pm_runtime_mark_last_busy(musb->controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) pm_runtime_put_autosuspend(musb->controller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) atomic_notifier_call_chain(&musb->xceiv->notifier,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) musb->xceiv->last_event, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^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) static void omap_musb_mailbox_work(struct work_struct *mailbox_work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct omap2430_glue *glue = container_of(mailbox_work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct omap2430_glue, omap_musb_mailbox_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) omap_musb_set_mailbox(glue);
^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) static irqreturn_t omap2430_musb_interrupt(int irq, void *__hci)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) irqreturn_t retval = IRQ_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) struct musb *musb = __hci;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) spin_lock_irqsave(&musb->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) if (musb->int_usb || musb->int_tx || musb->int_rx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) retval = musb_interrupt(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) spin_unlock_irqrestore(&musb->lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) return retval;
^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) static int omap2430_musb_init(struct musb *musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) u32 l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) int status = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct device *dev = musb->controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct musb_hdrc_platform_data *plat = dev_get_platdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) struct omap_musb_board_data *data = plat->board_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) /* We require some kind of external transceiver, hooked
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * up through ULPI. TWL4030-family PMICs include one,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * which needs a driver, drivers aren't always needed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) musb->phy = devm_phy_get(dev->parent, "usb2-phy");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) /* We can't totally remove musb->xceiv as of now because
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * musb core uses xceiv.state and xceiv.otg. Once we have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * a separate state machine to handle otg, these can be moved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) * out of xceiv and then we can start using the generic PHY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) * framework
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent, "usb-phy", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (IS_ERR(musb->xceiv)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) status = PTR_ERR(musb->xceiv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (status == -ENXIO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) dev_dbg(dev, "HS USB OTG: no transceiver configured\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) return -EPROBE_DEFER;
^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) if (IS_ERR(musb->phy)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) dev_err(dev, "HS USB OTG: no PHY configured\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) return PTR_ERR(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) musb->isr = omap2430_musb_interrupt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) phy_init(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) phy_power_on(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) l = musb_readl(musb->mregs, OTG_INTERFSEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (data->interface_type == MUSB_INTERFACE_UTMI) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) l &= ~ULPI_12PIN; /* Disable ULPI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) l |= UTMI_8BIT; /* Enable UTMI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) l |= ULPI_12PIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) musb_writel(musb->mregs, OTG_INTERFSEL, l);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) dev_dbg(dev, "HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) musb_readl(musb->mregs, OTG_REVISION),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) musb_readl(musb->mregs, OTG_SYSCONFIG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) musb_readl(musb->mregs, OTG_SYSSTATUS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) musb_readl(musb->mregs, OTG_INTERFSEL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) musb_readl(musb->mregs, OTG_SIMENABLE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static void omap2430_musb_enable(struct musb *musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) struct device *dev = musb->controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if (glue->status == MUSB_UNKNOWN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) glue->status = MUSB_VBUS_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) omap_musb_set_mailbox(glue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) static void omap2430_musb_disable(struct musb *musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) struct device *dev = musb->controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) if (glue->status != MUSB_UNKNOWN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) omap_control_usb_set_mode(glue->control_otghs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) USB_MODE_DISCONNECT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) static int omap2430_musb_exit(struct musb *musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) struct device *dev = musb->controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) omap2430_low_level_exit(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) phy_power_off(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) phy_exit(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) musb->phy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) cancel_work_sync(&glue->omap_musb_mailbox_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static const struct musb_platform_ops omap2430_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) .quirks = MUSB_DMA_INVENTRA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) #ifdef CONFIG_USB_INVENTRA_DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) .dma_init = musbhs_dma_controller_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) .dma_exit = musbhs_dma_controller_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) .init = omap2430_musb_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) .exit = omap2430_musb_exit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) .enable = omap2430_musb_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) .disable = omap2430_musb_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) .phy_callback = omap2430_musb_mailbox,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static u64 omap2430_dmamask = DMA_BIT_MASK(32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) static int omap2430_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) struct resource musb_resources[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct omap_musb_board_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) struct platform_device *musb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) struct omap2430_glue *glue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) struct device_node *np = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) struct musb_hdrc_config *config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) struct device_node *control_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) struct platform_device *control_pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) int ret = -ENOMEM, val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) if (!np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) if (!glue)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) goto err0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) if (!musb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) dev_err(&pdev->dev, "failed to allocate musb device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) goto err0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) musb->dev.parent = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) musb->dev.dma_mask = &omap2430_dmamask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) musb->dev.coherent_dma_mask = omap2430_dmamask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) glue->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) glue->musb = musb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) glue->status = MUSB_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) glue->control_otghs = ERR_PTR(-ENODEV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) goto err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) goto err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) if (!config)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) goto err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) of_property_read_u32(np, "interface-type",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) (u32 *)&data->interface_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) of_property_read_u32(np, "power", (u32 *)&pdata->power);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ret = of_property_read_u32(np, "multipoint", &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) if (!ret && val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) config->multipoint = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) pdata->board_data = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) pdata->config = config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) control_node = of_parse_phandle(np, "ctrl-module", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) if (control_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) control_pdev = of_find_device_by_node(control_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) if (!control_pdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) dev_err(&pdev->dev, "Failed to get control device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) goto err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) glue->control_otghs = &control_pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) pdata->platform_ops = &omap2430_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) platform_set_drvdata(pdev, glue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * REVISIT if we ever have two instances of the wrapper, we will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * in big trouble
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) _glue = glue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) memset(musb_resources, 0x00, sizeof(*musb_resources) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) ARRAY_SIZE(musb_resources));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) musb_resources[0].name = pdev->resource[0].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) musb_resources[0].start = pdev->resource[0].start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) musb_resources[0].end = pdev->resource[0].end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) musb_resources[0].flags = pdev->resource[0].flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) musb_resources[1].name = pdev->resource[1].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) musb_resources[1].start = pdev->resource[1].start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) musb_resources[1].end = pdev->resource[1].end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) musb_resources[1].flags = pdev->resource[1].flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) musb_resources[2].name = pdev->resource[2].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) musb_resources[2].start = pdev->resource[2].start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) musb_resources[2].end = pdev->resource[2].end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) musb_resources[2].flags = pdev->resource[2].flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) ret = platform_device_add_resources(musb, musb_resources,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) ARRAY_SIZE(musb_resources));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) dev_err(&pdev->dev, "failed to add resources\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) goto err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) dev_err(&pdev->dev, "failed to add platform_data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) goto err2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) pm_runtime_enable(glue->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) ret = platform_device_add(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) dev_err(&pdev->dev, "failed to register musb device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) goto err3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) err3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) pm_runtime_disable(glue->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) err2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) platform_device_put(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) err0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) static int omap2430_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) struct omap2430_glue *glue = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) platform_device_unregister(glue->musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) pm_runtime_disable(glue->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) static int omap2430_runtime_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) struct omap2430_glue *glue = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) struct musb *musb = glue_to_musb(glue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) if (!musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) musb->context.otg_interfsel = musb_readl(musb->mregs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) OTG_INTERFSEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) omap2430_low_level_exit(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) phy_power_off(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) phy_exit(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) static int omap2430_runtime_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) struct omap2430_glue *glue = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) struct musb *musb = glue_to_musb(glue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) if (!musb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) phy_init(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) phy_power_on(musb->phy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) omap2430_low_level_init(musb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) musb_writel(musb->mregs, OTG_INTERFSEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) musb->context.otg_interfsel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) /* Wait for musb to get oriented. Otherwise we can get babble */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) usleep_range(200000, 250000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) static const struct dev_pm_ops omap2430_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) .runtime_suspend = omap2430_runtime_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) .runtime_resume = omap2430_runtime_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) #define DEV_PM_OPS (&omap2430_pm_ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) #define DEV_PM_OPS NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) static const struct of_device_id omap2430_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) .compatible = "ti,omap4-musb"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) .compatible = "ti,omap3-musb"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) MODULE_DEVICE_TABLE(of, omap2430_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) static struct platform_driver omap2430_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) .probe = omap2430_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) .remove = omap2430_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) .name = "musb-omap2430",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) .pm = DEV_PM_OPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) .of_match_table = of_match_ptr(omap2430_id_table),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) module_platform_driver(omap2430_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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