4 files changed, 105 insertions, 42 deletions

diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 7678fee9a88..cb47afc9fff 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -11,6 +11,7 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/spi/spi.h>
+#include <linux/usb/atmel_usba_udc.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -1351,9 +1352,39 @@ static struct clk usba0_hclk = {
         .index          = 6,
 };
 
+#define EP(nam, idx, maxpkt, maxbk, dma, isoc)                  \
+        [idx] = {                                               \
+                .name           = nam,                          \
+                .index          = idx,                          \
+                .fifo_size      = maxpkt,                       \
+                .nr_banks       = maxbk,                        \
+                .can_dma        = dma,                          \
+                .can_isoc       = isoc,                         \
+        }
+
+static struct usba_ep_data at32_usba_ep[] __initdata = {
+        EP("ep0",     0,   64, 1, 0, 0),
+        EP("ep1",     1,  512, 2, 1, 1),
+        EP("ep2",     2,  512, 2, 1, 1),
+        EP("ep3-int", 3,   64, 3, 1, 0),
+        EP("ep4-int", 4,   64, 3, 1, 0),
+        EP("ep5",     5, 1024, 3, 1, 1),
+        EP("ep6",     6, 1024, 3, 1, 1),
+};
+
+#undef EP
+
 struct platform_device *__init
 at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
 {
+        /*
+         * pdata doesn't have room for any endpoints, so we need to
+         * append room for the ones we need right after it.
+         */
+        struct {
+                struct usba_platform_data pdata;
+                struct usba_ep_data ep[7];
+        } usba_data;
         struct platform_device *pdev;
 
         if (id != 0)
@@ -1367,13 +1398,20 @@ at32_add_device_usba(unsigned int id, struct usba_platform_data *data)
                                           ARRAY_SIZE(usba0_resource)))
                 goto out_free_pdev;
 
-        if (data) {
-                if (platform_device_add_data(pdev, data, sizeof(*data)))
-                        goto out_free_pdev;
+        if (data)
+                usba_data.pdata.vbus_pin = data->vbus_pin;
+        else
+                usba_data.pdata.vbus_pin = -EINVAL;
 
-                if (data->vbus_pin != GPIO_PIN_NONE)
-                        at32_select_gpio(data->vbus_pin, 0);
-        }
+        data = &usba_data.pdata;
+        data->num_ep = ARRAY_SIZE(at32_usba_ep);
+        memcpy(data->ep, at32_usba_ep, sizeof(at32_usba_ep));
+
+        if (platform_device_add_data(pdev, data, sizeof(usba_data)))
+                goto out_free_pdev;
+
+        if (data->vbus_pin >= 0)
+                at32_select_gpio(data->vbus_pin, 0);
 
         usba0_pclk.dev = &pdev->dev;
         usba0_hclk.dev = &pdev->dev;
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index 39d187fb038..71d3c5171f8 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/atmel_usba_udc.h>
 #include <linux/delay.h>
 
 #include <asm/gpio.h>
@@ -27,6 +28,7 @@
 
 
 static struct usba_udc the_udc;
+static struct usba_ep *usba_ep;
 
 #ifdef CONFIG_USB_GADGET_DEBUG_FS
 #include <linux/debugfs.h>
@@ -982,33 +984,6 @@ static const struct usb_gadget_ops usba_udc_ops = {
         .set_selfpowered        = usba_udc_set_selfpowered,
 };
 
-#define EP(nam, idx, maxpkt, maxbk, dma, isoc)                  \
-{                                                               \
-        .ep     = {                                             \
-                .ops            = &usba_ep_ops,                 \
-                .name           = nam,                          \
-                .maxpacket      = maxpkt,                       \
-        },                                                      \
-        .udc            = &the_udc,                             \
-        .queue          = LIST_HEAD_INIT(usba_ep[idx].queue),   \
-        .fifo_size      = maxpkt,                               \
-        .nr_banks       = maxbk,                                \
-        .index          = idx,                                  \
-        .can_dma        = dma,                                  \
-        .can_isoc       = isoc,                                 \
-}
-
-static struct usba_ep usba_ep[] = {
-        EP("ep0",     0,   64, 1, 0, 0),
-        EP("ep1",     1,  512, 2, 1, 1),
-        EP("ep2",     2,  512, 2, 1, 1),
-        EP("ep3-int", 3,   64, 3, 1, 0),
-        EP("ep4-int", 4,   64, 3, 1, 0),
-        EP("ep5",     5, 1024, 3, 1, 1),
-        EP("ep6",     6, 1024, 3, 1, 1),
-};
-#undef EP
-
 static struct usb_endpoint_descriptor usba_ep0_desc = {
         .bLength = USB_DT_ENDPOINT_SIZE,
         .bDescriptorType = USB_DT_ENDPOINT,
@@ -1027,7 +1002,6 @@ static void nop_release(struct device *dev)
 static struct usba_udc the_udc = {
         .gadget = {
                 .ops            = &usba_udc_ops,
-                .ep0            = &usba_ep[0].ep,
                 .ep_list        = LIST_HEAD_INIT(the_udc.gadget.ep_list),
                 .is_dualspeed   = 1,
                 .name           = "atmel_usba_udc",
@@ -1861,7 +1835,7 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 
         regs = platform_get_resource(pdev, IORESOURCE_MEM, CTRL_IOMEM_ID);
         fifo = platform_get_resource(pdev, IORESOURCE_MEM, FIFO_IOMEM_ID);
-        if (!regs || !fifo)
+        if (!regs || !fifo || !pdata)
                 return -ENXIO;
 
         irq = platform_get_irq(pdev, 0);
@@ -1909,16 +1883,44 @@ static int __init usba_udc_probe(struct platform_device *pdev)
         usba_writel(udc, CTRL, 0);
         clk_disable(pclk);
 
+        usba_ep = kmalloc(sizeof(struct usba_ep) * pdata->num_ep,
+                          GFP_KERNEL);
+        if (!usba_ep)
+                goto err_alloc_ep;
+
+        the_udc.gadget.ep0 = &usba_ep[0].ep;
+
         INIT_LIST_HEAD(&usba_ep[0].ep.ep_list);
         usba_ep[0].ep_regs = udc->regs + USBA_EPT_BASE(0);
         usba_ep[0].dma_regs = udc->regs + USBA_DMA_BASE(0);
         usba_ep[0].fifo = udc->fifo + USBA_FIFO_BASE(0);
-        for (i = 1; i < ARRAY_SIZE(usba_ep); i++) {
+        usba_ep[0].ep.ops = &usba_ep_ops;
+        usba_ep[0].ep.name = pdata->ep[0].name;
+        usba_ep[0].ep.maxpacket = pdata->ep[0].fifo_size;
+        usba_ep[0].udc = &the_udc;
+        INIT_LIST_HEAD(&usba_ep[0].queue);
+        usba_ep[0].fifo_size = pdata->ep[0].fifo_size;
+        usba_ep[0].nr_banks = pdata->ep[0].nr_banks;
+        usba_ep[0].index = pdata->ep[0].index;
+        usba_ep[0].can_dma = pdata->ep[0].can_dma;
+        usba_ep[0].can_isoc = pdata->ep[0].can_isoc;
+
+        for (i = 1; i < pdata->num_ep; i++) {
                 struct usba_ep *ep = &usba_ep[i];
 
                 ep->ep_regs = udc->regs + USBA_EPT_BASE(i);
                 ep->dma_regs = udc->regs + USBA_DMA_BASE(i);
                 ep->fifo = udc->fifo + USBA_FIFO_BASE(i);
+                ep->ep.ops = &usba_ep_ops;
+                ep->ep.name = pdata->ep[i].name;
+                ep->ep.maxpacket = pdata->ep[i].fifo_size;
+                ep->udc = &the_udc;
+                INIT_LIST_HEAD(&ep->queue);
+                ep->fifo_size = pdata->ep[i].fifo_size;
+                ep->nr_banks = pdata->ep[i].nr_banks;
+                ep->index = pdata->ep[i].index;
+                ep->can_dma = pdata->ep[i].can_dma;
+                ep->can_isoc = pdata->ep[i].can_isoc;
 
                 list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
         }
@@ -1937,7 +1939,7 @@ static int __init usba_udc_probe(struct platform_device *pdev)
                 goto err_device_add;
         }
 
-        if (pdata && pdata->vbus_pin >= 0) {
+        if (pdata->vbus_pin >= 0) {
                 if (!gpio_request(pdata->vbus_pin, "atmel_usba_udc")) {
                         udc->vbus_pin = pdata->vbus_pin;
 
@@ -1957,7 +1959,7 @@ static int __init usba_udc_probe(struct platform_device *pdev)
         }
 
         usba_init_debugfs(udc);
-        for (i = 1; i < ARRAY_SIZE(usba_ep); i++)
+        for (i = 1; i < pdata->num_ep; i++)
                 usba_ep_init_debugfs(udc, &usba_ep[i]);
 
         return 0;
@@ -1965,6 +1967,8 @@ static int __init usba_udc_probe(struct platform_device *pdev)
 err_device_add:
         free_irq(irq, udc);
 err_request_irq:
+        kfree(usba_ep);
+err_alloc_ep:
         iounmap(udc->fifo);
 err_map_fifo:
         iounmap(udc->regs);
@@ -1982,10 +1986,11 @@ static int __exit usba_udc_remove(struct platform_device *pdev)
 {
         struct usba_udc *udc;
         int i;
+        struct usba_platform_data *pdata = pdev->dev.platform_data;
 
         udc = platform_get_drvdata(pdev);
 
-        for (i = 1; i < ARRAY_SIZE(usba_ep); i++)
+        for (i = 1; i < pdata->num_ep; i++)
                 usba_ep_cleanup_debugfs(&usba_ep[i]);
         usba_cleanup_debugfs(udc);
 
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h
index 7597b0bd2f0..3fea2004f7d 100644
--- a/include/asm-avr32/arch-at32ap/board.h
+++ b/include/asm-avr32/arch-at32ap/board.h
@@ -38,9 +38,7 @@ struct platform_device *
 at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
                      unsigned long fbmem_start, unsigned long fbmem_len);
 
-struct usba_platform_data {
-        int vbus_pin;
-};
+struct usba_platform_data;
 struct platform_device *
 at32_add_device_usba(unsigned int id, struct usba_platform_data *data);
 
diff --git a/include/linux/usb/atmel_usba_udc.h b/include/linux/usb/atmel_usba_udc.h
new file mode 100644
index 00000000000..6311fa2d9f8
--- /dev/null
+++ b/include/linux/usb/atmel_usba_udc.h
@@ -0,0 +1,22 @@
+/*
+ * Platform data definitions for Atmel USBA gadget driver.
+ */
+#ifndef __LINUX_USB_USBA_H
+#define __LINUX_USB_USBA_H
+
+struct usba_ep_data {
+        char    *name;
+        int     index;
+        int     fifo_size;
+        int     nr_banks;
+        int     can_dma;
+        int     can_isoc;
+};
+
+struct usba_platform_data {
+        int                     vbus_pin;
+        int                     num_ep;
+        struct usba_ep_data     ep[0];
+};
+
+#endif /* __LINUX_USB_USBA_H */