@@ -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>
@@ -718,12 +719,13 @@ dwc3_qcom_create_urs_usb_platdev(struct device *dev)
static int dwc3_qcom_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
- struct device *dev = &pdev->dev;
- struct dwc3_qcom *qcom;
- struct resource *res, *parent_res = NULL;
- int ret, i;
- bool ignore_pipe_clk;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct dwc3_qcom *qcom;
+ 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) {
@@ -839,7 +843,12 @@ static int dwc3_qcom_probe(struct platform_device *pdev)
if (ret)
goto interconnect_exit;
- device_init_wakeup(&pdev->dev, 1);
+ genpd->flags |= GENPD_FLAG_RPM_ALWAYS_ON;
+
+ if (device_may_wakeup(&qcom->dwc3->dev)) {
+ genpd->flags |= GENPD_FLAG_ALWAYS_ON;
+ device_init_wakeup(&pdev->dev, true);
+ }
qcom->is_suspended = false;
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
Keep the power domain always on during runtime suspend or if the controller supports wakeup in order to retain controller status and to support wakeup from devices. Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com> --- v14: Removed the unwanted spaces between the type and the variable name in dwc3_qcom_probe. Avoiding device_may_wakeup condition check multiple times. v13: Added GENPD_FLAG_RPM_ALWAYS_ON irrespective of wakeup capability. Enable GENPD_FLAG_ALWAYS_ON only if device_may_wakeup is true. drivers/usb/dwc3/dwc3-qcom.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-)