usb:hsotg:samsung: Remove Disconnect Interrupt handler

The USB Disconnect Interrupt handler, according to specification,
is only working at HOST mode.

Samsung SoCs (e.g. Exynos4) are working at device mode, so
this interrupt is never caught.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 8d8652876c6730a684fc0f5723ec1c9a5eca9d1e..d0e4fb3bc465b7c6b91730f589819139d71ec22c 100644 (file)
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2211,12 +2211,11 @@ static void s3c_hsotg_core_init(struct s3c_hsotg *hsotg)
        /* Clear any pending interrupts */
        writel(0xffffffff, hsotg->regs + S3C_GINTSTS);
 
-       writel(S3C_GINTSTS_DisconnInt | S3C_GINTSTS_SessReqInt |
+       writel(S3C_GINTSTS_ErlySusp | S3C_GINTSTS_SessReqInt |
               S3C_GINTSTS_GOUTNakEff | S3C_GINTSTS_GINNakEff |
               S3C_GINTSTS_ConIDStsChng | S3C_GINTSTS_USBRst |
               S3C_GINTSTS_EnumDone | S3C_GINTSTS_OTGInt |
-              S3C_GINTSTS_USBSusp | S3C_GINTSTS_WkUpInt |
-              S3C_GINTSTS_ErlySusp,
+              S3C_GINTSTS_USBSusp | S3C_GINTSTS_WkUpInt,
               hsotg->regs + S3C_GINTMSK);
 
        if (using_dma(hsotg))
@@ -2339,13 +2338,6 @@ irq_retry:
                writel(otgint, hsotg->regs + S3C_GOTGINT);
        }
 
-       if (gintsts & S3C_GINTSTS_DisconnInt) {
-               dev_dbg(hsotg->dev, "%s: DisconnInt\n", __func__);
-               writel(S3C_GINTSTS_DisconnInt, hsotg->regs + S3C_GINTSTS);
-
-               s3c_hsotg_disconnect_irq(hsotg);
-       }
-
        if (gintsts & S3C_GINTSTS_SessReqInt) {
                dev_dbg(hsotg->dev, "%s: SessReqInt\n", __func__);
                writel(S3C_GINTSTS_SessReqInt, hsotg->regs + S3C_GINTSTS);