Moved global variable "musb_debugfs_root" and static variable "old_state" to 'struct musb' to help support multi instance of musb controller as present on AM335x platform. Also removed the global variable "orig_dma_mask" and filled the dev->dma_mask with parent device's dma_mask. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@xxxxxx> --- Earlier version of this was submitted at http://marc.info/?l=linux-usb&m=134062715911250&w=2 drivers/usb/musb/musb_core.c | 16 +++------------- drivers/usb/musb/musb_core.h | 4 ++++ drivers/usb/musb/musb_debugfs.c | 14 ++++++++------ 3 files changed, 15 insertions(+), 19 deletions(-) diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index f6ce66f..b6389f7 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1773,10 +1773,9 @@ static const struct attribute_group musb_attr_group = { static void musb_irq_work(struct work_struct *data) { struct musb *musb = container_of(data, struct musb, irq_work); - static int old_state; - if (musb->xceiv->state != old_state) { - old_state = musb->xceiv->state; + if (musb->xceiv->state != musb->xceiv_old_state) { + musb->xceiv_old_state = musb->xceiv->state; sysfs_notify(&musb->controller->kobj, NULL, "mode"); } } @@ -2086,11 +2085,6 @@ fail0: /* all implementations (PCI bridge to FPGA, VLYNQ, etc) should just * bridge to a platform device; this driver then suffices. */ - -#ifndef CONFIG_MUSB_PIO_ONLY -static u64 *orig_dma_mask; -#endif - static int __devinit musb_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -2109,10 +2103,6 @@ static int __devinit musb_probe(struct platform_device *pdev) return -ENOMEM; } -#ifndef CONFIG_MUSB_PIO_ONLY - /* clobbered by use_dma=n */ - orig_dma_mask = dev->dma_mask; -#endif status = musb_init_controller(dev, irq, base); if (status < 0) iounmap(base); @@ -2137,7 +2127,7 @@ static int __devexit musb_remove(struct platform_device *pdev) iounmap(ctrl_base); device_init_wakeup(&pdev->dev, 0); #ifndef CONFIG_MUSB_PIO_ONLY - pdev->dev.dma_mask = orig_dma_mask; + pdev->dev.dma_mask = (&dev->dev.parent)->dma_mask; #endif return 0; } diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 24daafd..fc8817d 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -452,6 +452,10 @@ struct musb { #endif /* id for multiple musb instances */ u8 id; + int xceiv_old_state; +#ifdef CONFIG_DEBUG_FS + struct dentry *debugfs_root; +#endif }; static inline struct musb *gadget_to_musb(struct usb_gadget *g) diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c index 40a37c9..b1e8f21 100644 --- a/drivers/usb/musb/musb_debugfs.c +++ b/drivers/usb/musb/musb_debugfs.c @@ -103,8 +103,6 @@ static const struct musb_register_map musb_regmap[] = { { } /* Terminating Entry */ }; -static struct dentry *musb_debugfs_root; - static int musb_regdump_show(struct seq_file *s, void *unused) { struct musb *musb = s->private; @@ -240,20 +238,24 @@ int __devinit musb_init_debugfs(struct musb *musb) struct dentry *root; struct dentry *file; int ret; + char name[10]; - root = debugfs_create_dir("musb", NULL); + sprintf(name, "musb%d", musb->id); + root = debugfs_create_dir(name, NULL); if (!root) { ret = -ENOMEM; goto err0; } - file = debugfs_create_file("regdump", S_IRUGO, root, musb, + sprintf(name, "regdump%d", musb->id); + file = debugfs_create_file(name, S_IRUGO, root, musb, &musb_regdump_fops); if (!file) { ret = -ENOMEM; goto err1; } + sprintf(name, "testmode%d", musb->id); file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, musb, &musb_test_mode_fops); if (!file) { @@ -261,7 +263,7 @@ int __devinit musb_init_debugfs(struct musb *musb) goto err1; } - musb_debugfs_root = root; + musb->debugfs_root = root; return 0; @@ -274,5 +276,5 @@ err0: void /* __init_or_exit */ musb_exit_debugfs(struct musb *musb) { - debugfs_remove_recursive(musb_debugfs_root); + debugfs_remove_recursive(musb->debugfs_root); } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
