From: Felipe Contreras Date: Fri, 11 Jun 2010 15:51:46 +0000 (+0000) Subject: omap: mailbox: simplify omap_mbox_register() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9c80c8cd740f802eed27ed1c1334262b205bb8f5;p=linux-beck.git omap: mailbox: simplify omap_mbox_register() No need to dynamically register mailboxes one by one. Signed-off-by: Felipe Contreras Signed-off-by: Hiroshi DOYU --- diff --git a/arch/arm/mach-omap1/mailbox.c b/arch/arm/mach-omap1/mailbox.c index 0318754e8504..9ca0d58feadf 100644 --- a/arch/arm/mach-omap1/mailbox.c +++ b/arch/arm/mach-omap1/mailbox.c @@ -29,8 +29,6 @@ static void __iomem *mbox_base; -static struct omap_mbox **list; - struct omap_mbox1_fifo { unsigned long cmd; unsigned long data; @@ -151,9 +149,9 @@ static int __devinit omap1_mbox_probe(struct platform_device *pdev) struct resource *mem; int ret; int i; + struct omap_mbox **list; list = omap1_mboxes; - list[0]->irq = platform_get_irq_byname(pdev, "dsp"); mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -161,27 +159,18 @@ static int __devinit omap1_mbox_probe(struct platform_device *pdev) if (!mbox_base) return -ENOMEM; - for (i = 0; list[i]; i++) { - ret = omap_mbox_register(&pdev->dev, list[i]); - if (ret) - goto err_out; + ret = omap_mbox_register(&pdev->dev, list); + if (ret) { + iounmap(mbox_base); + return ret; } - return 0; -err_out: - while (i--) - omap_mbox_unregister(list[i]); - iounmap(mbox_base); - return ret; + return 0; } static int __devexit omap1_mbox_remove(struct platform_device *pdev) { - int i; - - for (i = 0; list[i]; i++) - omap_mbox_unregister(list[i]); - + omap_mbox_unregister(); iounmap(mbox_base); return 0; } diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c index e5abc8e42f52..55d8b77f0fc0 100644 --- a/arch/arm/mach-omap2/mailbox.c +++ b/arch/arm/mach-omap2/mailbox.c @@ -56,8 +56,6 @@ static void __iomem *mbox_base; -static struct omap_mbox **list; - struct omap_mbox2_fifo { unsigned long msg; unsigned long fifo_stat; @@ -390,7 +388,7 @@ static int __devinit omap2_mbox_probe(struct platform_device *pdev) { struct resource *mem; int ret; - int i; + struct omap_mbox **list; if (cpu_is_omap3430()) { list = omap3_mboxes; @@ -421,27 +419,19 @@ static int __devinit omap2_mbox_probe(struct platform_device *pdev) if (!mbox_base) return -ENOMEM; - for (i = 0; list[i]; i++) { - ret = omap_mbox_register(&pdev->dev, list[i]); - if (ret) - goto err_out; + ret = omap_mbox_register(&pdev->dev, list); + if (ret) { + iounmap(mbox_base); + return ret; } return 0; -err_out: - while (i--) - omap_mbox_unregister(list[i]); - iounmap(mbox_base); return ret; } static int __devexit omap2_mbox_remove(struct platform_device *pdev) { - int i; - - for (i = 0; list[i]; i++) - omap_mbox_unregister(list[i]); - + omap_mbox_unregister(); iounmap(mbox_base); return 0; } diff --git a/arch/arm/plat-omap/include/plat/mailbox.h b/arch/arm/plat-omap/include/plat/mailbox.h index aad8bf80c224..c44fde30c7c1 100644 --- a/arch/arm/plat-omap/include/plat/mailbox.h +++ b/arch/arm/plat-omap/include/plat/mailbox.h @@ -55,7 +55,6 @@ struct omap_mbox { struct omap_mbox_queue *txq, *rxq; struct omap_mbox_ops *ops; struct device *dev; - struct omap_mbox *next; void *priv; }; @@ -65,8 +64,8 @@ void omap_mbox_init_seq(struct omap_mbox *); struct omap_mbox *omap_mbox_get(const char *); void omap_mbox_put(struct omap_mbox *); -int omap_mbox_register(struct device *parent, struct omap_mbox *); -int omap_mbox_unregister(struct omap_mbox *); +int omap_mbox_register(struct device *parent, struct omap_mbox **); +int omap_mbox_unregister(void); static inline void omap_mbox_save_ctx(struct omap_mbox *mbox) { diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c index 87e0cde8d0db..fe0882130852 100644 --- a/arch/arm/plat-omap/mailbox.c +++ b/arch/arm/plat-omap/mailbox.c @@ -33,8 +33,7 @@ #include static struct workqueue_struct *mboxd; -static struct omap_mbox *mboxes; -static DEFINE_SPINLOCK(mboxes_lock); +static struct omap_mbox **mboxes; static bool rq_full; static int mbox_configured; @@ -307,31 +306,20 @@ static void omap_mbox_fini(struct omap_mbox *mbox) } } -static struct omap_mbox **find_mboxes(const char *name) -{ - struct omap_mbox **p; - - for (p = &mboxes; *p; p = &(*p)->next) { - if (strcmp((*p)->name, name) == 0) - break; - } - - return p; -} - struct omap_mbox *omap_mbox_get(const char *name) { struct omap_mbox *mbox; int ret; - spin_lock(&mboxes_lock); - mbox = *(find_mboxes(name)); - if (mbox == NULL) { - spin_unlock(&mboxes_lock); - return ERR_PTR(-ENOENT); - } + if (!mboxes) + return ERR_PTR(-EINVAL); - spin_unlock(&mboxes_lock); + for (mbox = *mboxes; mbox; mbox++) + if (!strcmp(mbox->name, name)) + break; + + if (!mbox) + return ERR_PTR(-ENOENT); ret = omap_mbox_startup(mbox); if (ret) @@ -349,57 +337,44 @@ EXPORT_SYMBOL(omap_mbox_put); static struct class omap_mbox_class = { .name = "mbox", }; -int omap_mbox_register(struct device *parent, struct omap_mbox *mbox) +int omap_mbox_register(struct device *parent, struct omap_mbox **list) { - int ret = 0; - struct omap_mbox **tmp; + int ret; + int i; - if (!mbox) + mboxes = list; + if (!mboxes) return -EINVAL; - if (mbox->next) - return -EBUSY; - - mbox->dev = device_create(&omap_mbox_class, - parent, 0, mbox, "%s", mbox->name); - if (IS_ERR(mbox->dev)) - return PTR_ERR(mbox->dev); - - spin_lock(&mboxes_lock); - tmp = find_mboxes(mbox->name); - if (*tmp) { - ret = -EBUSY; - spin_unlock(&mboxes_lock); - goto err_find; - } - *tmp = mbox; - spin_unlock(&mboxes_lock); + for (i = 0; mboxes[i]; i++) { + struct omap_mbox *mbox = mboxes[i]; + mbox->dev = device_create(&omap_mbox_class, + parent, 0, mbox, "%s", mbox->name); + if (IS_ERR(mbox->dev)) { + ret = PTR_ERR(mbox->dev); + goto err_out; + } + } return 0; -err_find: +err_out: + while (i--) + device_unregister(mboxes[i]->dev); return ret; } EXPORT_SYMBOL(omap_mbox_register); -int omap_mbox_unregister(struct omap_mbox *mbox) +int omap_mbox_unregister(void) { - struct omap_mbox **tmp; - - spin_lock(&mboxes_lock); - tmp = &mboxes; - while (*tmp) { - if (mbox == *tmp) { - *tmp = mbox->next; - mbox->next = NULL; - spin_unlock(&mboxes_lock); - device_unregister(mbox->dev); - return 0; - } - tmp = &(*tmp)->next; - } - spin_unlock(&mboxes_lock); + int i; - return -EINVAL; + if (!mboxes) + return -EINVAL; + + for (i = 0; mboxes[i]; i++) + device_unregister(mboxes[i]->dev); + mboxes = NULL; + return 0; } EXPORT_SYMBOL(omap_mbox_unregister);