usb: musb: remove generic_interrupt

This patch is based on the discussion of a previous patch to fix an issue
where the omap2430 musb driver is not working for N9/N950.

Moving all the interrupt handling to the devices. Avoids inclusion of generic
interrupt and breakage due to sometimes misleading CONFIG options. This makes
sure usb always works if on of the subdrivers is chosen. Tested on Nokia N9/N950.

Partially clean up CONFIG_SOC_OMAP3430 which is not necessary in the cases
where I removed it. Also helps with the removal work of those options that
Tony Lindgren predicted would happen at some point.

Signed-off-by: Philippe De Swert <philippe.deswert@jollamobile.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 78037bfad96e95cc42a61d3f2c15ac52506db99b..774d8154a28602ece397e96dca3a44821bca837d 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1501,33 +1501,6 @@ static int __devinit musb_core_init(u16 musb_type, struct musb *musb)
 
 /*-------------------------------------------------------------------------*/
 
-#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_SOC_OMAP3430) || \
-       defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_ARCH_U8500)
-
-static irqreturn_t generic_interrupt(int irq, void *__hci)
-{
-       unsigned long   flags;
-       irqreturn_t     retval = IRQ_NONE;
-       struct musb     *musb = __hci;
-
-       spin_lock_irqsave(&musb->lock, flags);
-
-       musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
-       musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
-       musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
-
-       if (musb->int_usb || musb->int_tx || musb->int_rx)
-               retval = musb_interrupt(musb);
-
-       spin_unlock_irqrestore(&musb->lock, flags);
-
-       return retval;
-}
-
-#else
-#define generic_interrupt      NULL
-#endif
-
 /*
  * handle all the irqs defined by the HDRC core. for now we expect:  other
  * irq sources (phy, dma, etc) will be handled first, musb->int_* values
@@ -1896,7 +1869,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
        musb->ops = plat->platform_ops;
 
        /* The musb_platform_init() call:
-        *   - adjusts musb->mregs and musb->isr if needed,
+        *   - adjusts musb->mregs
+        *   - sets the musb->isr
         *   - may initialize an integrated tranceiver
         *   - initializes musb->xceiv, usually by otg_get_phy()
         *   - stops powering VBUS
@@ -1906,7 +1880,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
         * external/discrete ones in various flavors (twl4030 family,
         * isp1504, non-OTG, etc) mostly hooking up through ULPI.
         */
-       musb->isr = generic_interrupt;
        status = musb_platform_init(musb);
        if (status < 0)
                goto fail1;

diff --git a/drivers/usb/musb/musbhsdma.h b/drivers/usb/musb/musbhsdma.h
index 320fd4afb93f7cd31b05e26e125819ae03af95c2..f7b13fd252574f848e7984905cbaef4478c2e90a 100644 (file)
--- a/drivers/usb/musb/musbhsdma.h
+++ b/drivers/usb/musb/musbhsdma.h
@@ -31,10 +31,6 @@
  *
  */
 
-#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_SOC_OMAP3430)
-#include "omap2430.h"
-#endif
-
 #ifndef CONFIG_BLACKFIN
 
 #define MUSB_HSDMA_BASE                0x200

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index dddd8f71a17663ce903c73515a81ceb3516da8be..32f531e7a2e6ff48db2b4f5d9a8f8f4c1572d65a 100644 (file)
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -333,6 +333,26 @@ static void omap_musb_mailbox_work(struct work_struct *mailbox_work)
        omap_musb_set_mailbox(glue);
 }
 
+static irqreturn_t omap2430_musb_interrupt(int irq, void *__hci)
+{
+       unsigned long   flags;
+       irqreturn_t     retval = IRQ_NONE;
+       struct musb     *musb = __hci;
+
+       spin_lock_irqsave(&musb->lock, flags);
+
+       musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+       musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
+       musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
+
+       if (musb->int_usb || musb->int_tx || musb->int_rx)
+               retval = musb_interrupt(musb);
+
+       spin_unlock_irqrestore(&musb->lock, flags);
+
+       return retval;
+}
+
 static int omap2430_musb_init(struct musb *musb)
 {
        u32 l;
@@ -352,6 +372,8 @@ static int omap2430_musb_init(struct musb *musb)
                return -ENODEV;
        }
 
+       musb->isr = omap2430_musb_interrupt;
+
        status = pm_runtime_get_sync(dev);
        if (status < 0) {
                dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);

diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index 5e9053eb4298332a789b06c4ab58f81ffe165b72..286f1be6594acd8c56a5e55e010c69e853adab6a 100644 (file)
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -36,6 +36,26 @@ struct ux500_glue {
 };
 #define glue_to_musb(g)        platform_get_drvdata(g->musb)
 
+static irqreturn_t ux500_musb_interrupt(int irq, void *__hci)
+{
+       unsigned long   flags;
+       irqreturn_t     retval = IRQ_NONE;
+       struct musb     *musb = __hci;
+
+       spin_lock_irqsave(&musb->lock, flags);
+
+       musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB);
+       musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX);
+       musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX);
+
+       if (musb->int_usb || musb->int_tx || musb->int_rx)
+               retval = musb_interrupt(musb);
+
+       spin_unlock_irqrestore(&musb->lock, flags);
+
+       return retval;
+}
+
 static int ux500_musb_init(struct musb *musb)
 {
        musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
@@ -44,6 +64,8 @@ static int ux500_musb_init(struct musb *musb)
                return -ENODEV;
        }
 
+       musb->isr = ux500_musb_interrupt;
+
        return 0;
 }