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Commit 9c80c8cd authored by Felipe Contreras's avatar Felipe Contreras Committed by Hiroshi DOYU
Browse files

omap: mailbox: simplify omap_mbox_register() 



No need to dynamically register mailboxes one by one.

Signed-off-by: default avatarFelipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: default avatarHiroshi DOYU <Hiroshi.DOYU@nokia.com>
parent 898ee756

arch/arm/mach-omap1/mailbox.c

+7 −18
Original line number Diff line number Diff line
@@ -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;

	}

	return 0;



err_out:

	while (i--)

		omap_mbox_unregister(list[i]);

	ret = omap_mbox_register(&pdev->dev, list);

	if (ret) {

		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;

}

arch/arm/mach-omap2/mailbox.c

+6 −16
Original line number Diff line number Diff line
@@ -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;

}

arch/arm/plat-omap/include/plat/mailbox.h

+2 −3
Original line number Diff line number Diff line
@@ -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)

{

arch/arm/plat-omap/mailbox.c

+35 −60
Original line number Diff line number Diff line
@@ -33,8 +33,7 @@ 
#include <plat/mailbox.h>



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;



	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))

		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;

		if (IS_ERR(mbox->dev)) {

			ret = PTR_ERR(mbox->dev);

			goto err_out;

		}

	}

	*tmp = mbox;

	spin_unlock(&mboxes_lock);



	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;



	if (!mboxes)

		return -EINVAL;



	for (i = 0; mboxes[i]; i++)

		device_unregister(mboxes[i]->dev);

	mboxes = NULL;

	return 0;

}

EXPORT_SYMBOL(omap_mbox_unregister);