Re: [PATCH v16 9/9] usb: dwc3: qcom: Add multiport suspend/resume support for wrapper

From: Johan Hovold
Date: Mon Mar 25 2024 - 11:30:52 EST


On Thu, Mar 07, 2024 at 11:50:52AM +0530, Krishna Kurapati wrote:
> Power event IRQ is used for wakeup in cases:
> a) where the controller is super speed capable and missing an
> ss_phy interrupt.
> b) where the GIC is not capable of detecting DP/DM hs phy irq's.
>
> Power event IRQ stat register indicates whether high speed phy
> entered and exited L2 successfully during suspend and resume.
> Indicate the same for all ports of multiport.
>
> Signed-off-by: Krishna Kurapati <quic_kriskura@xxxxxxxxxxx>

> @@ -471,9 +480,12 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup)
> if (ret)
> dev_warn(qcom->dev, "failed to enable interconnect: %d\n", ret);
>
> + for (i = 0; i < qcom->num_ports; i++) {
> /* Clear existing events from PHY related to L2 in/out */

This comment either needs to be moved above the for-loop or be indented
one level in.

> - dwc3_qcom_setbits(qcom->qscratch_base, PWR_EVNT_IRQ_STAT_REG,
> - PWR_EVNT_LPM_IN_L2_MASK | PWR_EVNT_LPM_OUT_L2_MASK);
> + dwc3_qcom_setbits(qcom->qscratch_base,
> + pwr_evnt_irq_stat_reg[i],
> + PWR_EVNT_LPM_IN_L2_MASK | PWR_EVNT_LPM_OUT_L2_MASK);
> + }
>
> qcom->is_suspended = false;

With the above fixed:

Reviewed-by: Johan Hovold <johan+linaro@xxxxxxxxxx>