Hi Artur,
On Fri, Apr 12, 2019 at 01:38:56PM +0000, Artur Petrosyan wrote:
> In host mode port power must be turned on when wakeup
> detected or session request interrupt is detected.
> Because, otherwise core wouldn't exit form partial
> power down.
>
> - Turned on the port power by setting HPRT0_PWR bit.
>
> - Called dwc2_hcd_connect() function after enabling
> the power of the port.
>
> Signed-off-by: Artur Petrosyan <arturp@xxxxxxxxxxxx>
> ---
> drivers/usb/dwc2/core_intr.c | 24 +++++++++++++++++++++---
> 1 file changed, 21 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c
> index 19ae2595f1c3..ce523fd2b1b4 100644
> --- a/drivers/usb/dwc2/core_intr.c
> +++ b/drivers/usb/dwc2/core_intr.c
> @@ -312,6 +312,7 @@ static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg)
> static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
> {
> int ret;
> + u32 hprt0;
>
> /* Clear interrupt */
> dwc2_writel(hsotg, GINTSTS_SESSREQINT, GINTSTS);
> @@ -320,7 +321,8 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg)
> hsotg->lx_state);
>
> if (dwc2_is_device_mode(hsotg)) {
> - if (hsotg->lx_state == DWC2_L2) {
> + if (hsotg->lx_state == DWC2_L2 &&
> + hsotg->params.power_down == 1) {
I think you can replace 1 with DWC2_POWER_DOWN_PARAM_PARTIAL.
[snip]
---
Best,
Jules
