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authorMichael Büsch <mb@bu3sch.de>2011-03-06 22:19:25 +0000
committerMichael Büsch <mb@bu3sch.de>2011-03-06 22:19:25 +0000
commit55fae078d5ba0200421e77c21fce0ed74c47af30 (patch)
tree59d66331bf665cc887e9c260bf18d2f416bc73fc /target/linux/omap24xx
parent0e59776e3c01f390f1cbb111bccb69282bb7f90f (diff)
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n810: Partially fix tahvo USB.
SVN-Revision: 25908
Diffstat (limited to 'target/linux/omap24xx')
-rw-r--r--target/linux/omap24xx/patches-2.6.38/590-cbus-tahvo-usb-fixes.patch122
1 files changed, 122 insertions, 0 deletions
diff --git a/target/linux/omap24xx/patches-2.6.38/590-cbus-tahvo-usb-fixes.patch b/target/linux/omap24xx/patches-2.6.38/590-cbus-tahvo-usb-fixes.patch
new file mode 100644
index 0000000..963b09c
--- /dev/null
+++ b/target/linux/omap24xx/patches-2.6.38/590-cbus-tahvo-usb-fixes.patch
@@ -0,0 +1,122 @@
+Index: linux-2.6.38-rc7/drivers/cbus/tahvo-usb.c
+===================================================================
+--- linux-2.6.38-rc7.orig/drivers/cbus/tahvo-usb.c 2011-03-06 23:00:14.411191087 +0100
++++ linux-2.6.38-rc7/drivers/cbus/tahvo-usb.c 2011-03-06 23:00:16.571473834 +0100
+@@ -98,6 +98,7 @@ struct tahvo_usb {
+ #ifdef CONFIG_USB_OTG
+ int tahvo_mode;
+ #endif
++ struct clk *ick;
+ };
+ static struct platform_device tahvo_usb_device;
+
+@@ -673,6 +674,14 @@ static int __init tahvo_usb_probe(struct
+ INIT_WORK(&tu->irq_work, tahvo_usb_irq_work);
+ mutex_init(&tu->serialize);
+
++ tu->ick = clk_get(NULL, "usb_l4_ick");
++ if (IS_ERR(tu->ick)) {
++ printk(KERN_ERR "Failed to get usb_l4_ick\n");
++ ret = PTR_ERR(tu->ick);
++ goto err_free_tu;
++ }
++ clk_enable(tu->ick);
++
+ /* Set initial state, so that we generate kevents only on
+ * state changes */
+ tu->vbus_state = tahvo_read_reg(TAHVO_REG_IDSR) & 0x01;
+@@ -680,10 +689,9 @@ static int __init tahvo_usb_probe(struct
+ /* We cannot enable interrupt until omap_udc is initialized */
+ ret = tahvo_request_irq(TAHVO_INT_VBUSON, tahvo_usb_vbus_interrupt,
+ (unsigned long) tu, "vbus_interrupt");
+- if (ret != 0) {
+- kfree(tu);
++ if (ret) {
+ printk(KERN_ERR "Could not register Tahvo interrupt for VBUS\n");
+- return ret;
++ goto err_release_clk;
+ }
+
+ /* Attributes */
+@@ -708,9 +716,7 @@ static int __init tahvo_usb_probe(struct
+ ret = otg_set_transceiver(&tu->otg);
+ if (ret < 0) {
+ printk(KERN_ERR "Cannot register USB transceiver\n");
+- kfree(tu);
+- tahvo_free_irq(TAHVO_INT_VBUSON);
+- return ret;
++ goto err_free_irq;
+ }
+
+ dev_set_drvdata(dev, tu);
+@@ -719,10 +725,22 @@ static int __init tahvo_usb_probe(struct
+ * may not be generated in addition to this. */
+ schedule_work(&tu->irq_work);
+ return 0;
++
++err_free_irq:
++ tahvo_free_irq(TAHVO_INT_VBUSON);
++err_release_clk:
++ clk_disable(tu->ick);
++ clk_put(tu->ick);
++err_free_tu:
++ kfree(tu);
++
++ return ret;
+ }
+
+ static int __exit tahvo_usb_remove(struct platform_device *pdev)
+ {
++ struct tahvo_usb *tu = platform_get_drvdata(pdev);
++
+ dev_dbg(&pdev->dev, "remove\n");
+
+ tahvo_free_irq(TAHVO_INT_VBUSON);
+@@ -732,6 +750,11 @@ static int __exit tahvo_usb_remove(struc
+ #ifdef CONFIG_USB_OTG
+ device_remove_file(&pdev->dev, &dev_attr_otg_mode);
+ #endif
++ clk_disable(tu->ick);
++ clk_put(tu->ick);
++
++ kfree(tu);
++
+ return 0;
+ }
+
+Index: linux-2.6.38-rc7/arch/arm/mach-omap2/board-n8x0.c
+===================================================================
+--- linux-2.6.38-rc7.orig/arch/arm/mach-omap2/board-n8x0.c 2011-03-06 23:00:14.388188076 +0100
++++ linux-2.6.38-rc7/arch/arm/mach-omap2/board-n8x0.c 2011-03-06 23:06:50.508033149 +0100
+@@ -40,6 +40,7 @@
+ #include <plat/serial.h>
+ #include <plat/cbus.h>
+ #include <plat/gpio-switch.h>
++#include <plat/usb.h>
+
+ #include "mux.h"
+
+@@ -395,6 +396,14 @@ static struct musb_hdrc_platform_data tu
+ .config = &musb_config,
+ };
+
++static struct omap_usb_config n8x0_omap_usb_config __initdata = {
++ .otg = 1,
++ .register_host = 1,
++ .register_dev = 1,
++ .hmc_mode = 16,
++ .pins[0] = 6,
++};
++
+ static void __init n8x0_usb_init(void)
+ {
+ int ret = 0;
+@@ -417,6 +426,8 @@ static void __init n8x0_usb_init(void)
+ if (ret != 0)
+ goto err;
+
++ omap2_usbfs_init(&n8x0_omap_usb_config);
++
+ printk(announce);
+
+ return;