Messages in this thread | | | Subject | Re: [PATCH v11 5/5] usb: dwc3: qcom: Keep power domain on to retain controller status | From | "Sandeep Maheswaram (Temp)" <> | Date | Tue, 22 Mar 2022 14:48:32 +0530 |
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Hi Pavan,
On 3/22/2022 2:07 PM, Pavan Kondeti wrote: > Hi Sandeep, > > On Tue, Mar 22, 2022 at 12:37:56PM +0530, Sandeep Maheswaram wrote: >> Keep the power domain on in order to retail controller status and >> to support wakeup from devices. >> > %s/retail/retain > > retain the controller status so that remote wakeup / device connect / > device disconnect events can be detected during suspend. Will correct in next version. > >> Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com> >> --- >> drivers/usb/dwc3/dwc3-qcom.c | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c >> index 9804a19..35087cf 100644 >> --- a/drivers/usb/dwc3/dwc3-qcom.c >> +++ b/drivers/usb/dwc3/dwc3-qcom.c >> @@ -17,6 +17,7 @@ >> #include <linux/of_platform.h> >> #include <linux/platform_device.h> >> #include <linux/phy/phy.h> >> +#include <linux/pm_domain.h> >> #include <linux/usb/of.h> >> #include <linux/reset.h> >> #include <linux/iopoll.h> >> @@ -724,6 +725,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) >> struct resource *res, *parent_res = NULL; >> int ret, i; >> bool ignore_pipe_clk; >> + struct generic_pm_domain *genpd; >> >> qcom = devm_kzalloc(&pdev->dev, sizeof(*qcom), GFP_KERNEL); >> if (!qcom) >> @@ -732,6 +734,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) >> platform_set_drvdata(pdev, qcom); >> qcom->dev = &pdev->dev; >> >> + genpd = pd_to_genpd(qcom->dev->pm_domain); >> + >> if (has_acpi_companion(dev)) { >> qcom->acpi_pdata = acpi_device_get_match_data(dev); >> if (!qcom->acpi_pdata) { >> @@ -839,6 +843,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) >> if (ret) >> goto interconnect_exit; >> >> + genpd->flags |= GENPD_FLAG_ALWAYS_ON; >> + >> device_init_wakeup(&pdev->dev, 1); >> qcom->is_suspended = false; >> pm_runtime_set_active(dev); >> -- >> 2.7.4 >> > Thanks, > Pavan
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