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@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
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 5ead73d..1356680 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2214,12 +2214,11 @@ 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))
@@ -2342,13 +2341,6 @@ 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
--
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