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 <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> --- drivers/usb/gadget/s3c-hsotg.c | 12 ++---------- 1 files changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 780f79c..ea31478 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -2202,12 +2202,11 @@ 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_ConIDStsChng | S3C_GINTSTS_USBRst | S3C_GINTSTS_EnumDone | S3C_GINTSTS_OTGInt | S3C_GINTSTS_USBSusp | S3C_GINTSTS_WkUpInt | - S3C_GINTSTS_GOUTNakEff | S3C_GINTSTS_GINNakEff | - S3C_GINTSTS_ErlySusp, + S3C_GINTSTS_GOUTNakEff | S3C_GINTSTS_GINNakEff, hsotg->regs + S3C_GINTMSK); if (using_dma(hsotg)) @@ -2326,13 +2325,6 @@ 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); -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
