On 3/30/2016 8:08 AM, Przemek Rudy wrote:
> On 03/30/2016 12:15 PM, Felipe Balbi wrote:
>> John Youn <John.Youn@xxxxxxxxxxxx> writes:
>>> [ text/plain ]
>>> On 3/16/2016 3:10 PM, Przemek Rudy wrote:
>>>> The host/device mode set with dr_mode should be kept all the time,
>>>> not being changed to OTG in gadget setup (by overriding CFGUSB_FORCEDEVMODE
>>>> and CFGUSB_FORCEHOSTMODE bits).
>>>>
>>>> Signed-off-by: Przemek Rudy <prudy1@xxxxx>
>>>> ---
>>>> drivers/usb/dwc2/gadget.c | 23 ++++++++++++++++++-----
>>>> 1 file changed, 18 insertions(+), 5 deletions(-)
>>>>
>>>> diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
>>>> index e9940dd..818f158 100644
>>>> --- a/drivers/usb/dwc2/gadget.c
>>>> +++ b/drivers/usb/dwc2/gadget.c
>>>> @@ -2254,6 +2254,7 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
>>>> {
>>>> u32 intmsk;
>>>> u32 val;
>>>> + u32 usbcfg;
>>>>
>>>> /* Kill any ep0 requests as controller will be reinitialized */
>>>> kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);
>>>> @@ -2267,10 +2268,16 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
>>>> * set configuration.
>>>> */
>>>>
>>>> + /* keep other bits untouched (so e.g. forced modes are not lost) */
>>>> + usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
>>>> + usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP |
>>>> + GUSBCFG_HNPCAP);
>>>> +
>>>> /* set the PLL on, remove the HNP/SRP and set the PHY */
>>>> val = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
>>>> - dwc2_writel(hsotg->phyif | GUSBCFG_TOUTCAL(7) |
>>>> - (val << GUSBCFG_USBTRDTIM_SHIFT), hsotg->regs + GUSBCFG);
>>>> + usbcfg |= hsotg->phyif | GUSBCFG_TOUTCAL(7) |
>>>> + (val << GUSBCFG_USBTRDTIM_SHIFT);
>>>> + dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
>>>>
>>>> dwc2_hsotg_init_fifo(hsotg);
>>>>
>>>> @@ -3031,6 +3038,7 @@ static struct usb_ep_ops dwc2_hsotg_ep_ops = {
>>>> static void dwc2_hsotg_init(struct dwc2_hsotg *hsotg)
>>>> {
>>>> u32 trdtim;
>>>> + u32 usbcfg;
>>>> /* unmask subset of endpoint interrupts */
>>>>
>>>> dwc2_writel(DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK |
>>>> @@ -3054,11 +3062,16 @@ static void dwc2_hsotg_init(struct dwc2_hsotg *hsotg)
>>>>
>>>> dwc2_hsotg_init_fifo(hsotg);
>>>>
>>>> + /* keep other bits untouched (so e.g. forced modes are not lost) */
>>>> + usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
>>>> + usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP |
>>>> + GUSBCFG_HNPCAP);
>>>> +
>>>> /* set the PLL on, remove the HNP/SRP and set the PHY */
>>>> trdtim = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
>>>> - dwc2_writel(hsotg->phyif | GUSBCFG_TOUTCAL(7) |
>>>> - (trdtim << GUSBCFG_USBTRDTIM_SHIFT),
>>>> - hsotg->regs + GUSBCFG);
>>>> + usbcfg |= hsotg->phyif | GUSBCFG_TOUTCAL(7) |
>>>> + (trdtim << GUSBCFG_USBTRDTIM_SHIFT);
>>>> + dwc2_writel(usbcfg, hsotg->regs + GUSBCFG);
>>>>
>>>> if (using_dma(hsotg))
>>>> __orr32(hsotg->regs + GAHBCFG, GAHBCFG_DMA_EN);
>>>>
>>>
>>>
>>> Acked-by: John Youn <johnyoun@xxxxxxxxxxxx>
>>> Tested-by: John Youn <johnyoun@xxxxxxxxxxxx>
>>
>> I suppose this is for v4.7 merge window ?
>>
> Technically - patch was started against 4.5, as there are no conflict changes around the file it fits for 4.6, 4.7.
>
>
>
Hi Felipe,
Please queue for 4.6-rc.
Thanks,
John
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