Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 179 insertions, 70 deletions

diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 3c48e77a0aa2..b410357cf016 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -21,10 +21,16 @@
 #include <linux/usb.h>
 #include <linux/irq.h>
 #include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
 
 #include "musb_core.h"
 
-static void tusb_source_power(struct musb *musb, int is_on);
+struct tusb6010_glue {
+        struct device           *dev;
+        struct platform_device  *musb;
+};
+
+static void tusb_musb_set_vbus(struct musb *musb, int is_on);
 
 #define TUSB_REV_MAJOR(reg_val)         ((reg_val >> 4) & 0xf)
 #define TUSB_REV_MINOR(reg_val)         (reg_val & 0xf)
@@ -50,7 +56,7 @@ u8 tusb_get_revision(struct musb *musb)
         return rev;
 }
 
-static int __init tusb_print_revision(struct musb *musb)
+static int tusb_print_revision(struct musb *musb)
 {
         void __iomem    *tbase = musb->ctrl_base;
         u8              rev;
@@ -100,7 +106,7 @@ static void tusb_wbus_quirk(struct musb *musb, int enabled)
                 tmp = phy_otg_ena & ~WBUS_QUIRK_MASK;
                 tmp |= TUSB_PHY_OTG_CTRL_WRPROTECT | TUSB_PHY_OTG_CTRL_TESTM2;
                 musb_writel(tbase, TUSB_PHY_OTG_CTRL_ENABLE, tmp);
-                DBG(2, "Enabled tusb wbus quirk ctrl %08x ena %08x\n",
+                dev_dbg(musb->controller, "Enabled tusb wbus quirk ctrl %08x ena %08x\n",
                         musb_readl(tbase, TUSB_PHY_OTG_CTRL),
                         musb_readl(tbase, TUSB_PHY_OTG_CTRL_ENABLE));
         } else if (musb_readl(tbase, TUSB_PHY_OTG_CTRL_ENABLE)
@@ -109,7 +115,7 @@ static void tusb_wbus_quirk(struct musb *musb, int enabled)
                 musb_writel(tbase, TUSB_PHY_OTG_CTRL, tmp);
                 tmp = TUSB_PHY_OTG_CTRL_WRPROTECT | phy_otg_ena;
                 musb_writel(tbase, TUSB_PHY_OTG_CTRL_ENABLE, tmp);
-                DBG(2, "Disabled tusb wbus quirk ctrl %08x ena %08x\n",
+                dev_dbg(musb->controller, "Disabled tusb wbus quirk ctrl %08x ena %08x\n",
                         musb_readl(tbase, TUSB_PHY_OTG_CTRL),
                         musb_readl(tbase, TUSB_PHY_OTG_CTRL_ENABLE));
                 phy_otg_ctrl = 0;
@@ -166,13 +172,14 @@ static inline void tusb_fifo_read_unaligned(void __iomem *fifo,
 
 void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf)
 {
+        struct musb *musb = hw_ep->musb;
         void __iomem    *ep_conf = hw_ep->conf;
         void __iomem    *fifo = hw_ep->fifo;
         u8              epnum = hw_ep->epnum;
 
         prefetch(buf);
 
-        DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
+        dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",
                         'T', epnum, fifo, len, buf);
 
         if (epnum)
@@ -215,11 +222,12 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *buf)
 
 void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf)
 {
+        struct musb *musb = hw_ep->musb;
         void __iomem    *ep_conf = hw_ep->conf;
         void __iomem    *fifo = hw_ep->fifo;
         u8              epnum = hw_ep->epnum;
 
-        DBG(4, "%cX ep%d fifo %p count %d buf %p\n",
+        dev_dbg(musb->controller, "%cX ep%d fifo %p count %d buf %p\n",
                         'R', epnum, fifo, len, buf);
 
         if (epnum)
@@ -275,17 +283,6 @@ static int tusb_draw_power(struct otg_transceiver *x, unsigned mA)
         void __iomem    *tbase = musb->ctrl_base;
         u32             reg;
 
-        /*
-         * Keep clock active when enabled. Note that this is not tied to
-         * drawing VBUS, as with OTG mA can be less than musb->min_power.
-         */
-        if (musb->set_clock) {
-                if (mA)
-                        musb->set_clock(musb->clock, 1);
-                else
-                        musb->set_clock(musb->clock, 0);
-        }
-
         /* tps65030 seems to consume max 100mA, with maybe 60mA available
          * (measured on one board) for things other than tps and tusb.
          *
@@ -309,7 +306,7 @@ static int tusb_draw_power(struct otg_transceiver *x, unsigned mA)
         }
         musb_writel(tbase, TUSB_PRCM_MNGMT, reg);
 
-        DBG(2, "draw max %d mA VBUS\n", mA);
+        dev_dbg(musb->controller, "draw max %d mA VBUS\n", mA);
         return 0;
 }
 
@@ -348,7 +345,7 @@ static void tusb_set_clock_source(struct musb *musb, unsigned mode)
  * USB link is not suspended ... and tells us the relevant wakeup
  * events.  SW_EN for voltage is handled separately.
  */
-void tusb_allow_idle(struct musb *musb, u32 wakeup_enables)
+static void tusb_allow_idle(struct musb *musb, u32 wakeup_enables)
 {
         void __iomem    *tbase = musb->ctrl_base;
         u32             reg;
@@ -379,13 +376,13 @@ void tusb_allow_idle(struct musb *musb, u32 wakeup_enables)
         reg |= TUSB_PRCM_MNGMT_PM_IDLE | TUSB_PRCM_MNGMT_DEV_IDLE;
         musb_writel(tbase, TUSB_PRCM_MNGMT, reg);
 
-        DBG(6, "idle, wake on %02x\n", wakeup_enables);
+        dev_dbg(musb->controller, "idle, wake on %02x\n", wakeup_enables);
 }
 
 /*
  * Updates cable VBUS status. Caller must take care of locking.
  */
-int musb_platform_get_vbus_status(struct musb *musb)
+static int tusb_musb_vbus_status(struct musb *musb)
 {
         void __iomem    *tbase = musb->ctrl_base;
         u32             otg_stat, prcm_mngmt;
@@ -426,12 +423,12 @@ static void musb_do_idle(unsigned long _musb)
                 if ((musb->a_wait_bcon != 0)
                         && (musb->idle_timeout == 0
                                 || time_after(jiffies, musb->idle_timeout))) {
-                        DBG(4, "Nothing connected %s, turning off VBUS\n",
-                                        otg_state_string(musb));
+                        dev_dbg(musb->controller, "Nothing connected %s, turning off VBUS\n",
+                                        otg_state_string(musb->xceiv->state));
                 }
                 /* FALLTHROUGH */
         case OTG_STATE_A_IDLE:
-                tusb_source_power(musb, 0);
+                tusb_musb_set_vbus(musb, 0);
         default:
                 break;
         }
@@ -475,7 +472,7 @@ done:
  * we don't want to treat that full speed J as a wakeup event.
  * ... peripherals must draw only suspend current after 10 msec.
  */
-void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
+static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)
 {
         unsigned long           default_timeout = jiffies + msecs_to_jiffies(3);
         static unsigned long    last_timer;
@@ -486,7 +483,8 @@ void musb_platform_try_idle(struct musb *musb, unsigned long 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->state == OTG_STATE_A_WAIT_BCON))) {
-                DBG(4, "%s active, deleting timer\n", otg_state_string(musb));
+                dev_dbg(musb->controller, "%s active, deleting timer\n",
+                        otg_state_string(musb->xceiv->state));
                 del_timer(&musb_idle_timer);
                 last_timer = jiffies;
                 return;
@@ -496,14 +494,14 @@ void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
                 if (!timer_pending(&musb_idle_timer))
                         last_timer = timeout;
                 else {
-                        DBG(4, "Longer idle timer already pending, ignoring\n");
+                        dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n");
                         return;
                 }
         }
         last_timer = timeout;
 
-        DBG(4, "%s inactive, for idle timer for %lu ms\n",
-                otg_state_string(musb),
+        dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
+                otg_state_string(musb->xceiv->state),
                 (unsigned long)jiffies_to_msecs(timeout - jiffies));
         mod_timer(&musb_idle_timer, timeout);
 }
@@ -515,7 +513,7 @@ void musb_platform_try_idle(struct musb *musb, unsigned long timeout)
                                 | TUSB_DEV_OTG_TIMER_ENABLE) \
                 : 0)
 
-static void tusb_source_power(struct musb *musb, int is_on)
+static void tusb_musb_set_vbus(struct musb *musb, int is_on)
 {
         void __iomem    *tbase = musb->ctrl_base;
         u32             conf, prcm, timer;
@@ -531,8 +529,6 @@ static void tusb_source_power(struct musb *musb, int is_on)
         devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
 
         if (is_on) {
-                if (musb->set_clock)
-                        musb->set_clock(musb->clock, 1);
                 timer = OTG_TIMER_MS(OTG_TIME_A_WAIT_VRISE);
                 musb->xceiv->default_a = 1;
                 musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
@@ -571,8 +567,6 @@ static void tusb_source_power(struct musb *musb, int is_on)
 
                 devctl &= ~MUSB_DEVCTL_SESSION;
                 conf &= ~TUSB_DEV_CONF_USB_HOST_MODE;
-                if (musb->set_clock)
-                        musb->set_clock(musb->clock, 0);
         }
         prcm &= ~(TUSB_PRCM_MNGMT_15_SW_EN | TUSB_PRCM_MNGMT_33_SW_EN);
 
@@ -581,8 +575,8 @@ static void tusb_source_power(struct musb *musb, int is_on)
         musb_writel(tbase, TUSB_DEV_CONF, conf);
         musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
 
-        DBG(1, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n",
-                otg_state_string(musb),
+        dev_dbg(musb->controller, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n",
+                otg_state_string(musb->xceiv->state),
                 musb_readb(musb->mregs, MUSB_DEVCTL),
                 musb_readl(tbase, TUSB_DEV_OTG_STAT),
                 conf, prcm);
@@ -599,7 +593,7 @@ static void tusb_source_power(struct musb *musb, int is_on)
  * and peripheral modes in non-OTG configurations by reconfiguring hardware
  * and then setting musb->board_mode. For now, only support OTG mode.
  */
-int musb_platform_set_mode(struct musb *musb, u8 musb_mode)
+static int tusb_musb_set_mode(struct musb *musb, u8 musb_mode)
 {
         void __iomem    *tbase = musb->ctrl_base;
         u32             otg_stat, phy_otg_ctrl, phy_otg_ena, dev_conf;
@@ -642,7 +636,7 @@ int musb_platform_set_mode(struct musb *musb, u8 musb_mode)
 #endif
 
         default:
-                DBG(2, "Trying to set mode %i\n", musb_mode);
+                dev_dbg(musb->controller, "Trying to set mode %i\n", musb_mode);
                 return -EINVAL;
         }
 
@@ -675,9 +669,9 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
                         default_a = !(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS);
                 else
                         default_a = is_host_enabled(musb);
-                DBG(2, "Default-%c\n", default_a ? 'A' : 'B');
+                dev_dbg(musb->controller, "Default-%c\n", default_a ? 'A' : 'B');
                 musb->xceiv->default_a = default_a;
-                tusb_source_power(musb, default_a);
+                tusb_musb_set_vbus(musb, default_a);
 
                 /* Don't allow idling immediately */
                 if (default_a)
@@ -702,7 +696,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
 #endif
 
                         if (otg_stat & TUSB_DEV_OTG_STAT_SESS_END) {
-                                DBG(1, "Forcing disconnect (no interrupt)\n");
+                                dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n");
                                 if (musb->xceiv->state != OTG_STATE_B_IDLE) {
                                         /* INTR_DISCONNECT can hide... */
                                         musb->xceiv->state = OTG_STATE_B_IDLE;
@@ -710,19 +704,19 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
                                 }
                                 musb->is_active = 0;
                         }
-                        DBG(2, "vbus change, %s, otg %03x\n",
-                                otg_state_string(musb), otg_stat);
+                        dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",
+                                otg_state_string(musb->xceiv->state), otg_stat);
                         idle_timeout = jiffies + (1 * HZ);
                         schedule_work(&musb->irq_work);
 
                 } else /* A-dev state machine */ {
-                        DBG(2, "vbus change, %s, otg %03x\n",
-                                otg_state_string(musb), otg_stat);
+                        dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",
+                                otg_state_string(musb->xceiv->state), otg_stat);
 
                         switch (musb->xceiv->state) {
                         case OTG_STATE_A_IDLE:
-                                DBG(2, "Got SRP, turning on VBUS\n");
-                                musb_set_vbus(musb, 1);
+                                dev_dbg(musb->controller, "Got SRP, turning on VBUS\n");
+                                musb_platform_set_vbus(musb, 1);
 
                                 /* CONNECT can wake if a_wait_bcon is set */
                                 if (musb->a_wait_bcon != 0)
@@ -748,11 +742,11 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
                                  */
                                 if (musb->vbuserr_retry) {
                                         musb->vbuserr_retry--;
-                                        tusb_source_power(musb, 1);
+                                        tusb_musb_set_vbus(musb, 1);
                                 } else {
                                         musb->vbuserr_retry
                                                 = VBUSERR_RETRY_COUNT;
-                                        tusb_source_power(musb, 0);
+                                        tusb_musb_set_vbus(musb, 0);
                                 }
                                 break;
                         default:
@@ -765,7 +759,8 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
         if (int_src & TUSB_INT_SRC_OTG_TIMEOUT) {
                 u8      devctl;
 
-                DBG(4, "%s timer, %03x\n", otg_state_string(musb), otg_stat);
+                dev_dbg(musb->controller, "%s timer, %03x\n",
+                        otg_state_string(musb->xceiv->state), otg_stat);
 
                 switch (musb->xceiv->state) {
                 case OTG_STATE_A_WAIT_VRISE:
@@ -776,7 +771,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
                         if (otg_stat & TUSB_DEV_OTG_STAT_VBUS_VALID) {
                                 if ((devctl & MUSB_DEVCTL_VBUS)
                                                 != MUSB_DEVCTL_VBUS) {
-                                        DBG(2, "devctl %02x\n", devctl);
+                                        dev_dbg(musb->controller, "devctl %02x\n", devctl);
                                         break;
                                 }
                                 musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
@@ -786,7 +781,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
                         } else {
                                 /* REVISIT report overcurrent to hub? */
                                 ERR("vbus too slow, devctl %02x\n", devctl);
-                                tusb_source_power(musb, 0);
+                                tusb_musb_set_vbus(musb, 0);
                         }
                         break;
                 case OTG_STATE_A_WAIT_BCON:
@@ -807,7 +802,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
         return idle_timeout;
 }
 
-static irqreturn_t tusb_interrupt(int irq, void *__hci)
+static irqreturn_t tusb_musb_interrupt(int irq, void *__hci)
 {
         struct musb     *musb = __hci;
         void __iomem    *tbase = musb->ctrl_base;
@@ -821,7 +816,7 @@ static irqreturn_t tusb_interrupt(int irq, void *__hci)
         musb_writel(tbase, TUSB_INT_MASK, ~TUSB_INT_MASK_RESERVED_BITS);
 
         int_src = musb_readl(tbase, TUSB_INT_SRC) & ~TUSB_INT_SRC_RESERVED_BITS;
-        DBG(3, "TUSB IRQ %08x\n", int_src);
+        dev_dbg(musb->controller, "TUSB IRQ %08x\n", int_src);
 
         musb->int_usb = (u8) int_src;
 
@@ -842,7 +837,7 @@ static irqreturn_t tusb_interrupt(int irq, void *__hci)
                         reg = musb_readl(tbase, TUSB_SCRATCH_PAD);
                         if (reg == i)
                                 break;
-                        DBG(6, "TUSB NOR not ready\n");
+                        dev_dbg(musb->controller, "TUSB NOR not ready\n");
                 }
 
                 /* work around issue 13 (2nd half) */
@@ -854,7 +849,7 @@ static irqreturn_t tusb_interrupt(int irq, void *__hci)
                         musb->is_active = 1;
                         schedule_work(&musb->irq_work);
                 }
-                DBG(3, "wake %sactive %02x\n",
+                dev_dbg(musb->controller, "wake %sactive %02x\n",
                                 musb->is_active ? "" : "in", reg);
 
                 /* REVISIT host side TUSB_PRCM_WHOSTDISCON, TUSB_PRCM_WBUS */
@@ -876,7 +871,7 @@ static irqreturn_t tusb_interrupt(int irq, void *__hci)
                 u32     dma_src = musb_readl(tbase, TUSB_DMA_INT_SRC);
                 u32     real_dma_src = musb_readl(tbase, TUSB_DMA_INT_MASK);
 
-                DBG(3, "DMA IRQ %08x\n", dma_src);
+                dev_dbg(musb->controller, "DMA IRQ %08x\n", dma_src);
                 real_dma_src = ~real_dma_src & dma_src;
                 if (tusb_dma_omap() && real_dma_src) {
                         int     tx_source = (real_dma_src & 0xffff);
@@ -884,7 +879,7 @@ static irqreturn_t tusb_interrupt(int irq, void *__hci)
 
                         for (i = 1; i <= 15; i++) {
                                 if (tx_source & (1 << i)) {
-                                        DBG(3, "completing ep%i %s\n", i, "tx");
+                                        dev_dbg(musb->controller, "completing ep%i %s\n", i, "tx");
                                         musb_dma_completion(musb, i, 1);
                                 }
                         }
@@ -911,7 +906,7 @@ static irqreturn_t tusb_interrupt(int irq, void *__hci)
         musb_writel(tbase, TUSB_INT_SRC_CLEAR,
                 int_src & ~TUSB_INT_MASK_RESERVED_BITS);
 
-        musb_platform_try_idle(musb, idle_timeout);
+        tusb_musb_try_idle(musb, idle_timeout);
 
         musb_writel(tbase, TUSB_INT_MASK, int_mask);
         spin_unlock_irqrestore(&musb->lock, flags);
@@ -926,7 +921,7 @@ static int dma_off;
  * REVISIT:
  * - Check what is unnecessary in MGC_HdrcStart()
  */
-void musb_platform_enable(struct musb *musb)
+static void tusb_musb_enable(struct musb *musb)
 {
         void __iomem    *tbase = musb->ctrl_base;
 
@@ -952,7 +947,7 @@ void musb_platform_enable(struct musb *musb)
         musb_writel(tbase, TUSB_INT_CTRL_CONF,
                         TUSB_INT_CTRL_CONF_INT_RELCYC(0));
 
-        set_irq_type(musb->nIrq, IRQ_TYPE_LEVEL_LOW);
+        irq_set_irq_type(musb->nIrq, IRQ_TYPE_LEVEL_LOW);
 
         /* maybe force into the Default-A OTG state machine */
         if (!(musb_readl(tbase, TUSB_DEV_OTG_STAT)
@@ -970,7 +965,7 @@ void musb_platform_enable(struct musb *musb)
 /*
  * Disables TUSB6010. Caller must take care of locking.
  */
-void musb_platform_disable(struct musb *musb)
+static void tusb_musb_disable(struct musb *musb)
 {
         void __iomem    *tbase = musb->ctrl_base;
 
@@ -995,7 +990,7 @@ void musb_platform_disable(struct musb *musb)
  * Sets up TUSB6010 CPU interface specific signals and registers
  * Note: Settings optimized for OMAP24xx
  */
-static void __init tusb_setup_cpu_interface(struct musb *musb)
+static void tusb_setup_cpu_interface(struct musb *musb)
 {
         void __iomem    *tbase = musb->ctrl_base;
 
@@ -1022,7 +1017,7 @@ static void __init tusb_setup_cpu_interface(struct musb *musb)
         musb_writel(tbase, TUSB_WAIT_COUNT, 1);
 }
 
-static int __init tusb_start(struct musb *musb)
+static int tusb_musb_start(struct musb *musb)
 {
         void __iomem    *tbase = musb->ctrl_base;
         int             ret = 0;
@@ -1091,7 +1086,7 @@ err:
         return -ENODEV;
 }
 
-int __init musb_platform_init(struct musb *musb, void *board_data)
+static int tusb_musb_init(struct musb *musb)
 {
         struct platform_device  *pdev;
         struct resource         *mem;
@@ -1131,16 +1126,14 @@ int __init musb_platform_init(struct musb *musb, void *board_data)
          */
         musb->mregs += TUSB_BASE_OFFSET;
 
-        ret = tusb_start(musb);
+        ret = tusb_musb_start(musb);
         if (ret) {
                 printk(KERN_ERR "Could not start tusb6010 (%d)\n",
                                 ret);
                 goto done;
         }
-        musb->isr = tusb_interrupt;
+        musb->isr = tusb_musb_interrupt;
 
-        if (is_host_enabled(musb))
-                musb->board_set_vbus = tusb_source_power;
         if (is_peripheral_enabled(musb)) {
                 musb->xceiv->set_power = tusb_draw_power;
                 the_musb = musb;
@@ -1152,12 +1145,14 @@ done:
         if (ret < 0) {
                 if (sync)
                         iounmap(sync);
+
+                otg_put_transceiver(musb->xceiv);
                 usb_nop_xceiv_unregister();
         }
         return ret;
 }
 
-int musb_platform_exit(struct musb *musb)
+static int tusb_musb_exit(struct musb *musb)
 {
         del_timer_sync(&musb_idle_timer);
         the_musb = NULL;
@@ -1166,6 +1161,120 @@ int musb_platform_exit(struct musb *musb)
                 musb->board_set_power(0);
 
         iounmap(musb->sync_va);
+
+        otg_put_transceiver(musb->xceiv);
         usb_nop_xceiv_unregister();
         return 0;
 }
+
+static const struct musb_platform_ops tusb_ops = {
+        .init           = tusb_musb_init,
+        .exit           = tusb_musb_exit,
+
+        .enable         = tusb_musb_enable,
+        .disable        = tusb_musb_disable,
+
+        .set_mode       = tusb_musb_set_mode,
+        .try_idle       = tusb_musb_try_idle,
+
+        .vbus_status    = tusb_musb_vbus_status,
+        .set_vbus       = tusb_musb_set_vbus,
+};
+
+static u64 tusb_dmamask = DMA_BIT_MASK(32);
+
+static int __init tusb_probe(struct platform_device *pdev)
+{
+        struct musb_hdrc_platform_data  *pdata = pdev->dev.platform_data;
+        struct platform_device          *musb;
+        struct tusb6010_glue            *glue;
+
+        int                             ret = -ENOMEM;
+
+        glue = kzalloc(sizeof(*glue), GFP_KERNEL);
+        if (!glue) {
+                dev_err(&pdev->dev, "failed to allocate glue context\n");
+                goto err0;
+        }
+
+        musb = platform_device_alloc("musb-hdrc", -1);
+        if (!musb) {
+                dev_err(&pdev->dev, "failed to allocate musb device\n");
+                goto err1;
+        }
+
+        musb->dev.parent                = &pdev->dev;
+        musb->dev.dma_mask              = &tusb_dmamask;
+        musb->dev.coherent_dma_mask     = tusb_dmamask;
+
+        glue->dev                       = &pdev->dev;
+        glue->musb                      = musb;
+
+        pdata->platform_ops             = &tusb_ops;
+
+        platform_set_drvdata(pdev, glue);
+
+        ret = platform_device_add_resources(musb, pdev->resource,
+                        pdev->num_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;
+        }
+
+        ret = platform_device_add(musb);
+        if (ret) {
+                dev_err(&pdev->dev, "failed to register musb device\n");
+                goto err1;
+        }
+
+        return 0;
+
+err2:
+        platform_device_put(musb);
+
+err1:
+        kfree(glue);
+
+err0:
+        return ret;
+}
+
+static int __exit tusb_remove(struct platform_device *pdev)
+{
+        struct tusb6010_glue            *glue = platform_get_drvdata(pdev);
+
+        platform_device_del(glue->musb);
+        platform_device_put(glue->musb);
+        kfree(glue);
+
+        return 0;
+}
+
+static struct platform_driver tusb_driver = {
+        .remove         = __exit_p(tusb_remove),
+        .driver         = {
+                .name   = "musb-tusb",
+        },
+};
+
+MODULE_DESCRIPTION("TUSB6010 MUSB Glue Layer");
+MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
+MODULE_LICENSE("GPL v2");
+
+static int __init tusb_init(void)
+{
+        return platform_driver_probe(&tusb_driver, tusb_probe);
+}
+subsys_initcall(tusb_init);
+
+static void __exit tusb_exit(void)
+{
+        platform_driver_unregister(&tusb_driver);
+}
+module_exit(tusb_exit);