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- /*
- * Copyright (C) 2005-2007 by Texas Instruments
- * Some code has been taken from tusb6010.c
- * Copyrights for that are attributable to:
- * Copyright (C) 2006 Nokia Corporation
- * Tony Lindgren <tony@atomide.com>
- *
- * This file is part of the Inventra Controller Driver for Linux.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
- * The Inventra Controller Driver for Linux is distributed in
- * the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA 02111-1307 USA
- *
- */
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/sched.h>
- #include <linux/init.h>
- #include <linux/list.h>
- #include <linux/io.h>
- #include <linux/of.h>
- #include <linux/platform_device.h>
- #include <linux/dma-mapping.h>
- #include <linux/pm_runtime.h>
- #include <linux/err.h>
- #include <linux/delay.h>
- #include <linux/usb/musb-omap.h>
- #include <linux/phy/omap_control_phy.h>
- #include <linux/of_platform.h>
- #include "musb_core.h"
- #include "omap2430.h"
- struct omap2430_glue {
- struct device *dev;
- struct platform_device *musb;
- enum omap_musb_vbus_id_status status;
- struct work_struct omap_musb_mailbox_work;
- struct device *control_otghs;
- };
- #define glue_to_musb(g) platform_get_drvdata(g->musb)
- static struct omap2430_glue *_glue;
- static struct timer_list musb_idle_timer;
- static void musb_do_idle(unsigned long _musb)
- {
- struct musb *musb = (void *)_musb;
- unsigned long flags;
- u8 power;
- u8 devctl;
- spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->otg->state) {
- case OTG_STATE_A_WAIT_BCON:
- devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
- if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->otg->state = OTG_STATE_B_IDLE;
- MUSB_DEV_MODE(musb);
- } else {
- musb->xceiv->otg->state = OTG_STATE_A_IDLE;
- MUSB_HST_MODE(musb);
- }
- break;
- case OTG_STATE_A_SUSPEND:
- /* finish RESUME signaling? */
- if (musb->port1_status & MUSB_PORT_STAT_RESUME) {
- power = musb_readb(musb->mregs, MUSB_POWER);
- power &= ~MUSB_POWER_RESUME;
- dev_dbg(musb->controller, "root port resume stopped, power %02x\n", power);
- musb_writeb(musb->mregs, MUSB_POWER, power);
- musb->is_active = 1;
- musb->port1_status &= ~(USB_PORT_STAT_SUSPEND
- | MUSB_PORT_STAT_RESUME);
- musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
- usb_hcd_poll_rh_status(musb->hcd);
- /* NOTE: it might really be A_WAIT_BCON ... */
- musb->xceiv->otg->state = OTG_STATE_A_HOST;
- }
- break;
- case OTG_STATE_A_HOST:
- devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
- if (devctl & MUSB_DEVCTL_BDEVICE)
- musb->xceiv->otg->state = OTG_STATE_B_IDLE;
- else
- musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
- default:
- break;
- }
- spin_unlock_irqrestore(&musb->lock, flags);
- }
- static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout)
- {
- unsigned long default_timeout = jiffies + msecs_to_jiffies(3);
- static unsigned long last_timer;
- if (timeout == 0)
- timeout = default_timeout;
- /* Never idle if active, or when VBUS timeout is not set as host */
- if (musb->is_active || ((musb->a_wait_bcon == 0)
- && (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) {
- dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->otg->state));
- del_timer(&musb_idle_timer);
- last_timer = jiffies;
- return;
- }
- if (time_after(last_timer, timeout)) {
- if (!timer_pending(&musb_idle_timer))
- last_timer = timeout;
- else {
- dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n");
- return;
- }
- }
- last_timer = timeout;
- dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
- usb_otg_state_string(musb->xceiv->otg->state),
- (unsigned long)jiffies_to_msecs(timeout - jiffies));
- mod_timer(&musb_idle_timer, timeout);
- }
- static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
- {
- struct usb_otg *otg = musb->xceiv->otg;
- u8 devctl;
- unsigned long timeout = jiffies + msecs_to_jiffies(1000);
- /* HDRC controls CPEN, but beware current surges during device
- * connect. They can trigger transient overcurrent conditions
- * that must be ignored.
- */
- devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
- if (is_on) {
- if (musb->xceiv->otg->state == OTG_STATE_A_IDLE) {
- int loops = 100;
- /* start the session */
- devctl |= MUSB_DEVCTL_SESSION;
- musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
- /*
- * Wait for the musb to set as A device to enable the
- * VBUS
- */
- while (musb_readb(musb->mregs, MUSB_DEVCTL) &
- MUSB_DEVCTL_BDEVICE) {
- mdelay(5);
- cpu_relax();
- if (time_after(jiffies, timeout)
- || loops-- <= 0) {
- dev_err(musb->controller,
- "configured as A device timeout");
- break;
- }
- }
- otg_set_vbus(otg, 1);
- } else {
- musb->is_active = 1;
- otg->default_a = 1;
- musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
- devctl |= MUSB_DEVCTL_SESSION;
- MUSB_HST_MODE(musb);
- }
- } else {
- musb->is_active = 0;
- /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and
- * jumping right to B_IDLE...
- */
- otg->default_a = 0;
- musb->xceiv->otg->state = OTG_STATE_B_IDLE;
- devctl &= ~MUSB_DEVCTL_SESSION;
- MUSB_DEV_MODE(musb);
- }
- musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
- dev_dbg(musb->controller, "VBUS %s, devctl %02x "
- /* otg %3x conf %08x prcm %08x */ "\n",
- usb_otg_state_string(musb->xceiv->otg->state),
- musb_readb(musb->mregs, MUSB_DEVCTL));
- }
- static int omap2430_musb_set_mode(struct musb *musb, u8 musb_mode)
- {
- u8 devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
- devctl |= MUSB_DEVCTL_SESSION;
- musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
- return 0;
- }
- static inline void omap2430_low_level_exit(struct musb *musb)
- {
- u32 l;
- /* in any role */
- l = musb_readl(musb->mregs, OTG_FORCESTDBY);
- l |= ENABLEFORCE; /* enable MSTANDBY */
- musb_writel(musb->mregs, OTG_FORCESTDBY, l);
- }
- static inline void omap2430_low_level_init(struct musb *musb)
- {
- u32 l;
- l = musb_readl(musb->mregs, OTG_FORCESTDBY);
- l &= ~ENABLEFORCE; /* disable MSTANDBY */
- musb_writel(musb->mregs, OTG_FORCESTDBY, l);
- }
- void omap_musb_mailbox(enum omap_musb_vbus_id_status status)
- {
- struct omap2430_glue *glue = _glue;
- if (!glue) {
- pr_err("%s: musb core is not yet initialized\n", __func__);
- return;
- }
- glue->status = status;
- if (!glue_to_musb(glue)) {
- pr_err("%s: musb core is not yet ready\n", __func__);
- return;
- }
- schedule_work(&glue->omap_musb_mailbox_work);
- }
- EXPORT_SYMBOL_GPL(omap_musb_mailbox);
- static void omap_musb_set_mailbox(struct omap2430_glue *glue)
- {
- struct musb *musb = glue_to_musb(glue);
- struct device *dev = musb->controller;
- struct musb_hdrc_platform_data *pdata = dev_get_platdata(dev);
- struct omap_musb_board_data *data = pdata->board_data;
- struct usb_otg *otg = musb->xceiv->otg;
- switch (glue->status) {
- case OMAP_MUSB_ID_GROUND:
- dev_dbg(dev, "ID GND\n");
- otg->default_a = true;
- musb->xceiv->otg->state = OTG_STATE_A_IDLE;
- musb->xceiv->last_event = USB_EVENT_ID;
- if (musb->gadget_driver) {
- pm_runtime_get_sync(dev);
- omap_control_usb_set_mode(glue->control_otghs,
- USB_MODE_HOST);
- omap2430_musb_set_vbus(musb, 1);
- }
- break;
- case OMAP_MUSB_VBUS_VALID:
- dev_dbg(dev, "VBUS Connect\n");
- otg->default_a = false;
- musb->xceiv->otg->state = OTG_STATE_B_IDLE;
- musb->xceiv->last_event = USB_EVENT_VBUS;
- if (musb->gadget_driver)
- pm_runtime_get_sync(dev);
- omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
- break;
- case OMAP_MUSB_ID_FLOAT:
- case OMAP_MUSB_VBUS_OFF:
- dev_dbg(dev, "VBUS Disconnect\n");
- musb->xceiv->last_event = USB_EVENT_NONE;
- if (musb->gadget_driver) {
- omap2430_musb_set_vbus(musb, 0);
- pm_runtime_mark_last_busy(dev);
- pm_runtime_put_autosuspend(dev);
- }
- if (data->interface_type == MUSB_INTERFACE_UTMI)
- otg_set_vbus(musb->xceiv->otg, 0);
- omap_control_usb_set_mode(glue->control_otghs,
- USB_MODE_DISCONNECT);
- break;
- default:
- dev_dbg(dev, "ID float\n");
- }
- atomic_notifier_call_chain(&musb->xceiv->notifier,
- musb->xceiv->last_event, NULL);
- }
- static void omap_musb_mailbox_work(struct work_struct *mailbox_work)
- {
- struct omap2430_glue *glue = container_of(mailbox_work,
- struct omap2430_glue, omap_musb_mailbox_work);
- struct musb *musb = glue_to_musb(glue);
- struct device *dev = musb->controller;
- pm_runtime_get_sync(dev);
- omap_musb_set_mailbox(glue);
- pm_runtime_mark_last_busy(dev);
- pm_runtime_put_autosuspend(dev);
- }
- static irqreturn_t omap2430_musb_interrupt(int irq, void *__hci)
- {
- unsigned long flags;
- irqreturn_t retval = IRQ_NONE;
- struct musb *musb = __hci;
- spin_lock_irqsave(&musb->lock, flags);
- musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
- musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
- musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
- if (musb->int_usb || musb->int_tx || musb->int_rx)
- retval = musb_interrupt(musb);
- spin_unlock_irqrestore(&musb->lock, flags);
- return retval;
- }
- static int omap2430_musb_init(struct musb *musb)
- {
- u32 l;
- int status = 0;
- struct device *dev = musb->controller;
- struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
- struct musb_hdrc_platform_data *plat = dev_get_platdata(dev);
- struct omap_musb_board_data *data = plat->board_data;
- /* We require some kind of external transceiver, hooked
- * up through ULPI. TWL4030-family PMICs include one,
- * which needs a driver, drivers aren't always needed.
- */
- if (dev->parent->of_node) {
- musb->phy = devm_phy_get(dev->parent, "usb2-phy");
- /* We can't totally remove musb->xceiv as of now because
- * musb core uses xceiv.state and xceiv.otg. Once we have
- * a separate state machine to handle otg, these can be moved
- * out of xceiv and then we can start using the generic PHY
- * framework
- */
- musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent,
- "usb-phy", 0);
- } else {
- musb->xceiv = devm_usb_get_phy_dev(dev, 0);
- musb->phy = devm_phy_get(dev, "usb");
- }
- if (IS_ERR(musb->xceiv)) {
- status = PTR_ERR(musb->xceiv);
- if (status == -ENXIO)
- return status;
- pr_err("HS USB OTG: no transceiver configured\n");
- return -EPROBE_DEFER;
- }
- if (IS_ERR(musb->phy)) {
- pr_err("HS USB OTG: no PHY configured\n");
- return PTR_ERR(musb->phy);
- }
- musb->isr = omap2430_musb_interrupt;
- /*
- * Enable runtime PM for musb parent (this driver). We can't
- * do it earlier as struct musb is not yet allocated and we
- * need to touch the musb registers for runtime PM.
- */
- pm_runtime_enable(glue->dev);
- status = pm_runtime_get_sync(glue->dev);
- if (status < 0)
- goto err1;
- status = pm_runtime_get_sync(dev);
- if (status < 0) {
- dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);
- pm_runtime_put_sync(glue->dev);
- goto err1;
- }
- l = musb_readl(musb->mregs, OTG_INTERFSEL);
- if (data->interface_type == MUSB_INTERFACE_UTMI) {
- /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */
- l &= ~ULPI_12PIN; /* Disable ULPI */
- l |= UTMI_8BIT; /* Enable UTMI */
- } else {
- l |= ULPI_12PIN;
- }
- musb_writel(musb->mregs, OTG_INTERFSEL, l);
- pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
- "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
- musb_readl(musb->mregs, OTG_REVISION),
- musb_readl(musb->mregs, OTG_SYSCONFIG),
- musb_readl(musb->mregs, OTG_SYSSTATUS),
- musb_readl(musb->mregs, OTG_INTERFSEL),
- musb_readl(musb->mregs, OTG_SIMENABLE));
- setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
- if (glue->status != OMAP_MUSB_UNKNOWN)
- omap_musb_set_mailbox(glue);
- phy_init(musb->phy);
- phy_power_on(musb->phy);
- pm_runtime_put_noidle(musb->controller);
- pm_runtime_put_noidle(glue->dev);
- return 0;
- err1:
- return status;
- }
- static void omap2430_musb_enable(struct musb *musb)
- {
- u8 devctl;
- unsigned long timeout = jiffies + msecs_to_jiffies(1000);
- struct device *dev = musb->controller;
- struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
- struct musb_hdrc_platform_data *pdata = dev_get_platdata(dev);
- struct omap_musb_board_data *data = pdata->board_data;
- switch (glue->status) {
- case OMAP_MUSB_ID_GROUND:
- omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST);
- if (data->interface_type != MUSB_INTERFACE_UTMI)
- break;
- devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
- /* start the session */
- devctl |= MUSB_DEVCTL_SESSION;
- musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
- while (musb_readb(musb->mregs, MUSB_DEVCTL) &
- MUSB_DEVCTL_BDEVICE) {
- cpu_relax();
- if (time_after(jiffies, timeout)) {
- dev_err(dev, "configured as A device timeout");
- break;
- }
- }
- break;
- case OMAP_MUSB_VBUS_VALID:
- omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE);
- break;
- default:
- break;
- }
- }
- static void omap2430_musb_disable(struct musb *musb)
- {
- struct device *dev = musb->controller;
- struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
- if (glue->status != OMAP_MUSB_UNKNOWN)
- omap_control_usb_set_mode(glue->control_otghs,
- USB_MODE_DISCONNECT);
- }
- static int omap2430_musb_exit(struct musb *musb)
- {
- del_timer_sync(&musb_idle_timer);
- omap2430_low_level_exit(musb);
- phy_power_off(musb->phy);
- phy_exit(musb->phy);
- return 0;
- }
- static const struct musb_platform_ops omap2430_ops = {
- .quirks = MUSB_DMA_INVENTRA,
- #ifdef CONFIG_USB_INVENTRA_DMA
- .dma_init = musbhs_dma_controller_create,
- .dma_exit = musbhs_dma_controller_destroy,
- #endif
- .init = omap2430_musb_init,
- .exit = omap2430_musb_exit,
- .set_mode = omap2430_musb_set_mode,
- .try_idle = omap2430_musb_try_idle,
- .set_vbus = omap2430_musb_set_vbus,
- .enable = omap2430_musb_enable,
- .disable = omap2430_musb_disable,
- };
- static u64 omap2430_dmamask = DMA_BIT_MASK(32);
- static int omap2430_probe(struct platform_device *pdev)
- {
- struct resource musb_resources[3];
- struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct omap_musb_board_data *data;
- struct platform_device *musb;
- struct omap2430_glue *glue;
- struct device_node *np = pdev->dev.of_node;
- struct musb_hdrc_config *config;
- int ret = -ENOMEM, val;
- glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
- if (!glue)
- goto err0;
- musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
- if (!musb) {
- dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err0;
- }
- musb->dev.parent = &pdev->dev;
- musb->dev.dma_mask = &omap2430_dmamask;
- musb->dev.coherent_dma_mask = omap2430_dmamask;
- glue->dev = &pdev->dev;
- glue->musb = musb;
- glue->status = OMAP_MUSB_UNKNOWN;
- glue->control_otghs = ERR_PTR(-ENODEV);
- if (np) {
- struct device_node *control_node;
- struct platform_device *control_pdev;
- pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
- goto err2;
- data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
- if (!data)
- goto err2;
- config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
- if (!config)
- goto err2;
- of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
- of_property_read_u32(np, "interface-type",
- (u32 *)&data->interface_type);
- of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps);
- of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
- of_property_read_u32(np, "power", (u32 *)&pdata->power);
- ret = of_property_read_u32(np, "multipoint", &val);
- if (!ret && val)
- config->multipoint = true;
- pdata->board_data = data;
- pdata->config = config;
- control_node = of_parse_phandle(np, "ctrl-module", 0);
- if (control_node) {
- control_pdev = of_find_device_by_node(control_node);
- if (!control_pdev) {
- dev_err(&pdev->dev, "Failed to get control device\n");
- ret = -EINVAL;
- goto err2;
- }
- glue->control_otghs = &control_pdev->dev;
- }
- }
- pdata->platform_ops = &omap2430_ops;
- platform_set_drvdata(pdev, glue);
- /*
- * REVISIT if we ever have two instances of the wrapper, we will be
- * in big trouble
- */
- _glue = glue;
- INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work);
- memset(musb_resources, 0x00, sizeof(*musb_resources) *
- ARRAY_SIZE(musb_resources));
- musb_resources[0].name = pdev->resource[0].name;
- musb_resources[0].start = pdev->resource[0].start;
- musb_resources[0].end = pdev->resource[0].end;
- musb_resources[0].flags = pdev->resource[0].flags;
- musb_resources[1].name = pdev->resource[1].name;
- musb_resources[1].start = pdev->resource[1].start;
- musb_resources[1].end = pdev->resource[1].end;
- musb_resources[1].flags = pdev->resource[1].flags;
- musb_resources[2].name = pdev->resource[2].name;
- musb_resources[2].start = pdev->resource[2].start;
- musb_resources[2].end = pdev->resource[2].end;
- musb_resources[2].flags = pdev->resource[2].flags;
- ret = platform_device_add_resources(musb, musb_resources,
- ARRAY_SIZE(musb_resources));
- if (ret) {
- dev_err(&pdev->dev, "failed to add resources\n");
- goto err2;
- }
- ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
- if (ret) {
- dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err2;
- }
- /*
- * Note that we cannot enable PM runtime yet for this
- * driver as we need struct musb initialized first.
- * See omap2430_musb_init above.
- */
- ret = platform_device_add(musb);
- if (ret) {
- dev_err(&pdev->dev, "failed to register musb device\n");
- goto err2;
- }
- return 0;
- err2:
- platform_device_put(musb);
- err0:
- return ret;
- }
- static int omap2430_remove(struct platform_device *pdev)
- {
- struct omap2430_glue *glue = platform_get_drvdata(pdev);
- cancel_work_sync(&glue->omap_musb_mailbox_work);
- platform_device_unregister(glue->musb);
- return 0;
- }
- #ifdef CONFIG_PM
- static int omap2430_runtime_suspend(struct device *dev)
- {
- struct omap2430_glue *glue = dev_get_drvdata(dev);
- struct musb *musb = glue_to_musb(glue);
- if (musb) {
- musb->context.otg_interfsel = musb_readl(musb->mregs,
- OTG_INTERFSEL);
- omap2430_low_level_exit(musb);
- }
- return 0;
- }
- static int omap2430_runtime_resume(struct device *dev)
- {
- struct omap2430_glue *glue = dev_get_drvdata(dev);
- struct musb *musb = glue_to_musb(glue);
- if (!musb)
- return -EPROBE_DEFER;
- omap2430_low_level_init(musb);
- musb_writel(musb->mregs, OTG_INTERFSEL,
- musb->context.otg_interfsel);
- return 0;
- }
- static struct dev_pm_ops omap2430_pm_ops = {
- .runtime_suspend = omap2430_runtime_suspend,
- .runtime_resume = omap2430_runtime_resume,
- };
- #define DEV_PM_OPS (&omap2430_pm_ops)
- #else
- #define DEV_PM_OPS NULL
- #endif
- #ifdef CONFIG_OF
- static const struct of_device_id omap2430_id_table[] = {
- {
- .compatible = "ti,omap4-musb"
- },
- {
- .compatible = "ti,omap3-musb"
- },
- {},
- };
- MODULE_DEVICE_TABLE(of, omap2430_id_table);
- #endif
- static struct platform_driver omap2430_driver = {
- .probe = omap2430_probe,
- .remove = omap2430_remove,
- .driver = {
- .name = "musb-omap2430",
- .pm = DEV_PM_OPS,
- .of_match_table = of_match_ptr(omap2430_id_table),
- },
- };
- MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer");
- MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
- MODULE_LICENSE("GPL v2");
- static int __init omap2430_init(void)
- {
- return platform_driver_register(&omap2430_driver);
- }
- subsys_initcall(omap2430_init);
- static void __exit omap2430_exit(void)
- {
- platform_driver_unregister(&omap2430_driver);
- }
- module_exit(omap2430_exit);
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