usb: musb: tusb6010: Use musb->tusb_revision instead of tusb_get_revision call.

The value of the revision is stored in musb->tusb_revision,
so don't re-read it every time.
Exporting tusb_get_revision is not needed anymore,
so the dependency loop between tusb6010 and tusb6010_omap is resolved.

Signed-off-by: Matwey V. Kornilov <matwey@sai.msu.ru>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 8a74642..159ef4b 100644 (file)
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -43,7 +43,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on);
  * Checks the revision. We need to use the DMA register as 3.0 does not
  * have correct versions for TUSB_PRCM_REV or TUSB_INT_CTRL_REV.
  */
-u8 tusb_get_revision(struct musb *musb)
+static u8 tusb_get_revision(struct musb *musb)
 {
        void __iomem    *tbase = musb->ctrl_base;
        u32             die_id;
@@ -59,14 +59,13 @@ u8 tusb_get_revision(struct musb *musb)
 
        return rev;
 }
-EXPORT_SYMBOL_GPL(tusb_get_revision);
 
-static int tusb_print_revision(struct musb *musb)
+static void tusb_print_revision(struct musb *musb)
 {
        void __iomem    *tbase = musb->ctrl_base;
        u8              rev;
 
-       rev = tusb_get_revision(musb);
+       rev = musb->tusb_revision;
 
        pr_info("tusb: %s%i.%i %s%i.%i %s%i.%i %s%i.%i %s%i %s%i.%i\n",
                "prcm",
@@ -85,8 +84,6 @@ static int tusb_print_revision(struct musb *musb)
                TUSB_DIDR1_HI_CHIP_REV(musb_readl(tbase, TUSB_DIDR1_HI)),
                "rev",
                TUSB_REV_MAJOR(rev), TUSB_REV_MINOR(rev));
-
-       return tusb_get_revision(musb);
 }
 
 #define WBUS_QUIRK_MASK        (TUSB_PHY_OTG_CTRL_TESTM2 | TUSB_PHY_OTG_CTRL_TESTM1 \
@@ -350,7 +347,7 @@ static void tusb_allow_idle(struct musb *musb, u32 wakeup_enables)
        u32             reg;
 
        if ((wakeup_enables & TUSB_PRCM_WBUS)
-                       && (tusb_get_revision(musb) == TUSB_REV_30))
+                       && (musb->tusb_revision == TUSB_REV_30))
                tusb_wbus_quirk(musb, 1);
 
        tusb_set_clock_source(musb, 0);
@@ -798,7 +795,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci)
                u32     reg;
                u32     i;
 
-               if (tusb_get_revision(musb) == TUSB_REV_30)
+               if (musb->tusb_revision == TUSB_REV_30)
                        tusb_wbus_quirk(musb, 0);
 
                /* there are issues re-locking the PLL on wakeup ... */
@@ -1013,10 +1010,10 @@ static int tusb_musb_start(struct musb *musb)
        }
 
        musb->tusb_revision = tusb_get_revision(musb);
-       ret = tusb_print_revision(musb);
-       if (ret < 2) {
+       tusb_print_revision(musb);
+       if (musb->tusb_revision < 2) {
                printk(KERN_ERR "tusb: Unsupported TUSB6010 revision %i\n",
-                               ret);
+                               musb->tusb_revision);
                goto err;
        }
 

diff --git a/drivers/usb/musb/tusb6010.h b/drivers/usb/musb/tusb6010.h
index 1864e24..aec86c8 100644 (file)
--- a/drivers/usb/musb/tusb6010.h
+++ b/drivers/usb/musb/tusb6010.h
@@ -12,8 +12,6 @@
 #ifndef __TUSB6010_H__
 #define __TUSB6010_H__
 
-extern u8 tusb_get_revision(struct musb *musb);
-
 #ifdef CONFIG_USB_TUSB_OMAP_DMA
 #define tusb_dma_omap()                        1
 #else

diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index e33b6b2..3ce152c 100644 (file)
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -677,7 +677,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
        tusb_dma->controller.channel_program = tusb_omap_dma_program;
        tusb_dma->controller.channel_abort = tusb_omap_dma_abort;
 
-       if (tusb_get_revision(musb) >= TUSB_REV_30)
+       if (musb->tusb_revision >= TUSB_REV_30)
                tusb_dma->multichannel = 1;
 
        for (i = 0; i < MAX_DMAREQ; i++) {