* for more details.
*/
+#include <linux/module.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/pm_runtime.h>
#include <plat/mailbox.h>
#include <mach/irqs.h>
#define MAILBOX_REVISION 0x000
-#define MAILBOX_SYSCONFIG 0x010
-#define MAILBOX_SYSSTATUS 0x014
#define MAILBOX_MESSAGE(m) (0x040 + 4 * (m))
#define MAILBOX_FIFOSTATUS(m) (0x080 + 4 * (m))
#define MAILBOX_MSGSTATUS(m) (0x0c0 + 4 * (m))
#define MAILBOX_IRQ_NEWMSG(m) (1 << (2 * (m)))
#define MAILBOX_IRQ_NOTFULL(m) (1 << (2 * (m) + 1))
-/* SYSCONFIG: register bit definition */
-#define AUTOIDLE (1 << 0)
-#define SOFTRESET (1 << 1)
-#define SMARTIDLE (2 << 3)
-#define OMAP4_SOFTRESET (1 << 0)
-#define OMAP4_NOIDLE (1 << 2)
-#define OMAP4_SMARTIDLE (2 << 2)
-
-/* SYSSTATUS: register bit definition */
-#define RESETDONE (1 << 0)
-
#define MBOX_REG_SIZE 0x120
#define OMAP4_MBOX_REG_SIZE 0x130
unsigned long irqdisable;
};
-static struct clk *mbox_ick_handle;
-
static void omap2_mbox_enable_irq(struct omap_mbox *mbox,
omap_mbox_type_t irq);
static int omap2_mbox_startup(struct omap_mbox *mbox)
{
u32 l;
- unsigned long timeout;
- mbox_ick_handle = clk_get(NULL, "mailboxes_ick");
- if (IS_ERR(mbox_ick_handle)) {
- printk(KERN_ERR "Could not get mailboxes_ick: %ld\n",
- PTR_ERR(mbox_ick_handle));
- return PTR_ERR(mbox_ick_handle);
- }
- clk_enable(mbox_ick_handle);
-
- if (cpu_is_omap44xx()) {
- mbox_write_reg(OMAP4_SOFTRESET, MAILBOX_SYSCONFIG);
- timeout = jiffies + msecs_to_jiffies(20);
- do {
- l = mbox_read_reg(MAILBOX_SYSCONFIG);
- if (!(l & OMAP4_SOFTRESET))
- break;
- } while (!time_after(jiffies, timeout));
-
- if (l & OMAP4_SOFTRESET) {
- pr_err("Can't take mailbox out of reset\n");
- return -ENODEV;
- }
- } else {
- mbox_write_reg(SOFTRESET, MAILBOX_SYSCONFIG);
- timeout = jiffies + msecs_to_jiffies(20);
- do {
- l = mbox_read_reg(MAILBOX_SYSSTATUS);
- if (l & RESETDONE)
- break;
- } while (!time_after(jiffies, timeout));
-
- if (!(l & RESETDONE)) {
- pr_err("Can't take mailbox out of reset\n");
- return -ENODEV;
- }
- }
+ pm_runtime_enable(mbox->dev->parent);
+ pm_runtime_get_sync(mbox->dev->parent);
l = mbox_read_reg(MAILBOX_REVISION);
pr_debug("omap mailbox rev %d.%d\n", (l & 0xf0) >> 4, (l & 0x0f));
- if (cpu_is_omap44xx())
- l = OMAP4_SMARTIDLE;
- else
- l = SMARTIDLE | AUTOIDLE;
- mbox_write_reg(l, MAILBOX_SYSCONFIG);
-
omap2_mbox_enable_irq(mbox, IRQ_RX);
return 0;
static void omap2_mbox_shutdown(struct omap_mbox *mbox)
{
- clk_disable(mbox_ick_handle);
- clk_put(mbox_ick_handle);
- mbox_ick_handle = NULL;
+ pm_runtime_put_sync(mbox->dev->parent);
+ pm_runtime_disable(mbox->dev->parent);
}
/* Mailbox FIFO handle functions */
omap_mbox_type_t irq)
{
struct omap_mbox2_priv *p = mbox->priv;
- u32 l, bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
- l = mbox_read_reg(p->irqdisable);
- l &= ~bit;
- mbox_write_reg(l, p->irqdisable);
+ u32 bit = (irq == IRQ_TX) ? p->notfull_bit : p->newmsg_bit;
+
+ if (!cpu_is_omap44xx())
+ bit = mbox_read_reg(p->irqdisable) & ~bit;
+
+ mbox_write_reg(bit, p->irqdisable);
}
static void omap2_mbox_ack_irq(struct omap_mbox *mbox,
struct omap_mbox *omap3_mboxes[] = { &mbox_dsp_info, NULL };
#endif
-#if defined(CONFIG_ARCH_OMAP2420)
+#if defined(CONFIG_SOC_OMAP2420)
/* IVA */
static struct omap_mbox2_priv omap2_mbox_iva_priv = {
.tx_fifo = {
else if (cpu_is_omap34xx()) {
list = omap3_mboxes;
- list[0]->irq = platform_get_irq_byname(pdev, "dsp");
+ list[0]->irq = platform_get_irq(pdev, 0);
}
#endif
#if defined(CONFIG_ARCH_OMAP2)
else if (cpu_is_omap2430()) {
list = omap2_mboxes;
- list[0]->irq = platform_get_irq_byname(pdev, "dsp");
+ list[0]->irq = platform_get_irq(pdev, 0);
} else if (cpu_is_omap2420()) {
list = omap2_mboxes;
else if (cpu_is_omap44xx()) {
list = omap4_mboxes;
- list[0]->irq = list[1]->irq =
- platform_get_irq_byname(pdev, "mbox");
+ list[0]->irq = list[1]->irq = platform_get_irq(pdev, 0);
}
#endif
else {