161 lines
4.4 KiB
Diff
161 lines
4.4 KiB
Diff
Index: linux-2.6.38-rc7/drivers/cbus/tahvo-usb.c
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===================================================================
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--- linux-2.6.38-rc7.orig/drivers/cbus/tahvo-usb.c 2011-03-06 23:00:14.411191087 +0100
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+++ linux-2.6.38-rc7/drivers/cbus/tahvo-usb.c 2011-03-06 23:43:26.524751556 +0100
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@@ -98,8 +98,9 @@ struct tahvo_usb {
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#ifdef CONFIG_USB_OTG
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int tahvo_mode;
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#endif
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+ struct clk *ick;
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};
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-static struct platform_device tahvo_usb_device;
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+static struct tahvo_usb *tahvo_usb_device;
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/*
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* ---------------------------------------------------------------------------
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@@ -114,8 +115,7 @@ static struct platform_device *tahvo_otg
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static irqreturn_t omap_otg_irq(int irq, void *arg)
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{
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- struct platform_device *otg_dev = arg;
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- struct tahvo_usb *tu = platform_get_drvdata(otg_dev);
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+ struct tahvo_usb *tu = arg;
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u16 otg_irq;
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otg_irq = omap_readw(OTG_IRQ_SRC);
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@@ -201,12 +201,12 @@ static int __init omap_otg_probe(struct
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return request_irq(tahvo_otg_dev->resource[1].start,
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omap_otg_irq, IRQF_DISABLED, DRIVER_NAME,
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- &tahvo_usb_device);
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+ tahvo_usb_device);
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}
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static int __exit omap_otg_remove(struct platform_device *pdev)
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{
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- free_irq(tahvo_otg_dev->resource[1].start, &tahvo_usb_device);
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+ free_irq(tahvo_otg_dev->resource[1].start, tahvo_usb_device);
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tahvo_otg_dev = NULL;
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return 0;
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@@ -659,6 +659,7 @@ static int __init tahvo_usb_probe(struct
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tu = kzalloc(sizeof(*tu), GFP_KERNEL);
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if (!tu)
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return -ENOMEM;
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+ tahvo_usb_device = tu;
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tu->pt_dev = container_of(dev, struct platform_device, dev);
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#ifdef CONFIG_USB_OTG
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@@ -673,6 +674,14 @@ static int __init tahvo_usb_probe(struct
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INIT_WORK(&tu->irq_work, tahvo_usb_irq_work);
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mutex_init(&tu->serialize);
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+ tu->ick = clk_get(NULL, "usb_l4_ick");
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+ if (IS_ERR(tu->ick)) {
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+ printk(KERN_ERR "Failed to get usb_l4_ick\n");
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+ ret = PTR_ERR(tu->ick);
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+ goto err_free_tu;
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+ }
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+ clk_enable(tu->ick);
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+
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/* Set initial state, so that we generate kevents only on
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* state changes */
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tu->vbus_state = tahvo_read_reg(TAHVO_REG_IDSR) & 0x01;
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@@ -680,10 +689,9 @@ static int __init tahvo_usb_probe(struct
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/* We cannot enable interrupt until omap_udc is initialized */
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ret = tahvo_request_irq(TAHVO_INT_VBUSON, tahvo_usb_vbus_interrupt,
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(unsigned long) tu, "vbus_interrupt");
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- if (ret != 0) {
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- kfree(tu);
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+ if (ret) {
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printk(KERN_ERR "Could not register Tahvo interrupt for VBUS\n");
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- return ret;
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+ goto err_release_clk;
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}
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/* Attributes */
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@@ -708,9 +716,7 @@ static int __init tahvo_usb_probe(struct
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ret = otg_set_transceiver(&tu->otg);
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if (ret < 0) {
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printk(KERN_ERR "Cannot register USB transceiver\n");
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- kfree(tu);
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- tahvo_free_irq(TAHVO_INT_VBUSON);
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- return ret;
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+ goto err_free_irq;
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}
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dev_set_drvdata(dev, tu);
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@@ -719,10 +725,23 @@ static int __init tahvo_usb_probe(struct
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* may not be generated in addition to this. */
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schedule_work(&tu->irq_work);
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return 0;
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+
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+err_free_irq:
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+ tahvo_free_irq(TAHVO_INT_VBUSON);
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+err_release_clk:
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+ clk_disable(tu->ick);
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+ clk_put(tu->ick);
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+err_free_tu:
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+ kfree(tu);
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+ tahvo_usb_device = NULL;
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+
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+ return ret;
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}
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static int __exit tahvo_usb_remove(struct platform_device *pdev)
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{
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+ struct tahvo_usb *tu = platform_get_drvdata(pdev);
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+
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dev_dbg(&pdev->dev, "remove\n");
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tahvo_free_irq(TAHVO_INT_VBUSON);
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@@ -732,6 +751,12 @@ static int __exit tahvo_usb_remove(struc
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#ifdef CONFIG_USB_OTG
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device_remove_file(&pdev->dev, &dev_attr_otg_mode);
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#endif
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+ clk_disable(tu->ick);
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+ clk_put(tu->ick);
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+
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+ kfree(tu);
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+ tahvo_usb_device = NULL;
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+
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return 0;
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}
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Index: linux-2.6.38-rc7/arch/arm/mach-omap2/board-n8x0.c
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===================================================================
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--- linux-2.6.38-rc7.orig/arch/arm/mach-omap2/board-n8x0.c 2011-03-06 23:00:14.388188076 +0100
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+++ linux-2.6.38-rc7/arch/arm/mach-omap2/board-n8x0.c 2011-03-06 23:06:50.508033149 +0100
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@@ -40,6 +40,7 @@
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#include <plat/serial.h>
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#include <plat/cbus.h>
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#include <plat/gpio-switch.h>
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+#include <plat/usb.h>
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#include "mux.h"
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@@ -395,6 +396,14 @@ static struct musb_hdrc_platform_data tu
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.config = &musb_config,
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};
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+static struct omap_usb_config n8x0_omap_usb_config __initdata = {
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+ .otg = 1,
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+ .register_host = 1,
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+ .register_dev = 1,
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+ .hmc_mode = 16,
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+ .pins[0] = 6,
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+};
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+
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static void __init n8x0_usb_init(void)
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{
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int ret = 0;
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@@ -417,6 +426,8 @@ static void __init n8x0_usb_init(void)
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if (ret != 0)
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goto err;
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+ omap2_usbfs_init(&n8x0_omap_usb_config);
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+
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printk(announce);
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return;
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