usb: renesas_usbhs: add IRQ resource decoding for IRQF_SHARED

In case of the SH7757, the irq number of USB module and SUDMAC
are the same. So, we have to set the IRQF_SHARED in such a case.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

3 files changed, 8 insertions, 6 deletions

diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index e9a5b1d2615e..a165490bae48 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -413,8 +413,7 @@ static int usbhs_probe(struct platform_device *pdev)
         struct renesas_usbhs_platform_info *info = pdev->dev.platform_data;
         struct renesas_usbhs_driver_callback *dfunc;
         struct usbhs_priv *priv;
-        struct resource *res;
-        unsigned int irq;
+        struct resource *res, *irq_res;
         int ret;
 
         /* check platform information */
@@ -426,8 +425,8 @@ static int usbhs_probe(struct platform_device *pdev)
 
         /* platform data */
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        irq = platform_get_irq(pdev, 0);
-        if (!res || (int)irq <= 0) {
+        irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+        if (!res || !irq_res) {
                 dev_err(&pdev->dev, "Not enough Renesas USB platform resources.\n");
                 return -ENODEV;
         }
@@ -476,7 +475,9 @@ static int usbhs_probe(struct platform_device *pdev)
         /*
          * priv settings
          */
-        priv->irq       = irq;
+        priv->irq       = irq_res->start;
+        if (irq_res->flags & IORESOURCE_IRQ_SHAREABLE)
+                priv->irqflags = IRQF_SHARED;
         priv->pdev      = pdev;
         INIT_DELAYED_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
         spin_lock_init(usbhs_priv_to_lock(priv));
diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h
index d79b3e27db95..3f3ccd358753 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -242,6 +242,7 @@ struct usbhs_priv {
 
         void __iomem *base;
         unsigned int irq;
+        unsigned long irqflags;
 
         struct renesas_usbhs_platform_callback  pfunc;
         struct renesas_usbhs_driver_param       dparam;
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 1b97fb12694b..0871e816df45 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -152,7 +152,7 @@ int usbhs_mod_probe(struct usbhs_priv *priv)
 
         /* irq settings */
         ret = request_irq(priv->irq, usbhs_interrupt,
-                          0, dev_name(dev), priv);
+                          priv->irqflags, dev_name(dev), priv);
         if (ret) {
                 dev_err(dev, "irq request err\n");
                 goto mod_init_gadget_err;