Re: [PATCH v6 4/5] usb: dwc3: qcom: Configure wakeup interrupts during suspend

[Matthias Kaehlcke]

On Fri, Apr 16, 2021 at 03:31:52PM +0530, Sandeep Maheswaram wrote:
> Configure interrupts based on hs_phy_mode to avoid triggering of
> interrupts during system suspend and suspend the device successfully.
> 
> Signed-off-by: Sandeep Maheswaram <sanm@xxxxxxxxxxxxxx>
> ---
>  drivers/usb/dwc3/dwc3-qcom.c | 26 ++++++++++++++++++++------
>  1 file changed, 20 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
> index 66183c6..b1e9061 100644
> --- a/drivers/usb/dwc3/dwc3-qcom.c
> +++ b/drivers/usb/dwc3/dwc3-qcom.c
> @@ -316,22 +316,36 @@ static void dwc3_qcom_disable_wakeup_irq(int irq)
>  
>  static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)
>  {
> -	dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq);
> +	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
>  
> -	dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
> +	dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq);
>  
> -	dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
> +	if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_LS)
> +		dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
> +	else if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_HS)
> +		dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
> +	else {
> +		dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
> +		dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
> +	}

nit: 'if' and 'else if' branches should also have curly braces since
'else' has them.

>  	dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq);
>  }
>  
>  static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
>  {
> -	dwc3_qcom_enable_wakeup_irq(qcom->hs_phy_irq);
> +	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
>  
> -	dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq);
> +	dwc3_qcom_enable_wakeup_irq(qcom->hs_phy_irq);
>  
> -	dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq);
> +	if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_LS)
> +		dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq);
> +	else if (dwc->hs_phy_mode & PHY_MODE_USB_HOST_HS)
> +		dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq);
> +	else {
> +		dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq);
> +		dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq);
> +	}

ditto

>  	dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq);
>  }

Other than the nits:

Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>