On 11/8/2016 1:25 AM, Felipe Balbi wrote:
>
> Hi,
>
> John Youn <johny...@synopsys.com> writes:
>> From: Vahram Aharonyan <vahr...@synopsys.com>
>>
>> Corrected unmasking of StsPhseRcvd interrupt not to be performed during
>> gadget initialization if operating in Slave mode.
>>
>> Also moved StsPhsRcvd interrupt checking in endpoint interrupt handler
>> to correspond HW databook register field sequence.
>>
>> Signed-off-by: Vahram Aharonyan <vahr...@synopsys.com>
>> Signed-off-by: John Youn <johny...@synopsys.com>
>> ---
>> drivers/usb/dwc2/gadget.c | 11 ++++++-----
>> 1 file changed, 6 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
>> index 2ca5779..e866edc 100644
>> --- a/drivers/usb/dwc2/gadget.c
>> +++ b/drivers/usb/dwc2/gadget.c
>> @@ -2554,9 +2554,6 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg,
>> unsigned int idx,
>> if (idx == 0 && (ints & (DXEPINT_SETUP | DXEPINT_SETUP_RCVD)))
>> ints &= ~DXEPINT_XFERCOMPL;
>>
>> - if (ints & DXEPINT_STSPHSERCVD)
>> - dev_dbg(hsotg->dev, "%s: StsPhseRcvd asserted\n", __func__);
>> -
>> if (ints & DXEPINT_XFERCOMPL) {
>> dev_dbg(hsotg->dev,
>> "%s: XferCompl: DxEPCTL=0x%08x, DXEPTSIZ=%08x\n",
>> @@ -2619,6 +2616,9 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg,
>> unsigned int idx,
>> }
>> }
>>
>> + if (ints & DXEPINT_STSPHSERCVD)
>> + dev_dbg(hsotg->dev, "%s: StsPhseRcvd\n", __func__);
>
> I really don't get what's up with these interrupts that only print a
> debugging message. Why do you even enable them? Why do you care? There's
> nothing to be handled, apparently.
>
>> @@ -2910,9 +2910,10 @@ void dwc2_hsotg_core_init_disconnected(struct
>> dwc2_hsotg *hsotg,
>>
>> /*
>> * don't need XferCompl, we get that from RXFIFO in slave mode. In
>> - * DMA mode we may need this.
>> + * DMA mode we may need this and StsPhseRcvd.
>> */
>> - dwc2_writel((using_dma(hsotg) ? (DIEPMSK_XFERCOMPLMSK) : 0) |
>> + dwc2_writel((using_dma(hsotg) ? (DIEPMSK_XFERCOMPLMSK |
>> + DOEPMSK_STSPHSERCVDMSK) : 0) |
>
> Why is this bit is duplicated below?
I'm not sure. That looks like a mistake. We'll check.
Regards,
John
>
>> DOEPMSK_EPDISBLDMSK | DOEPMSK_AHBERRMSK |
>> DOEPMSK_SETUPMSK | DOEPMSK_STSPHSERCVDMSK,
>> hsotg->regs + DOEPMSK);
>> --
>> 2.10.0
>>
>> --
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