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Subject[PATCH v2 2/3] usb: dwc3: qcom: Configure wakeup interrupts and set genpd active wakeup flag
Date
configure interrupts based on hs_phy_flag. Set genpd active wakeup flag
for usb gdsc if wakeup capable devices are connected.

Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org>
---
drivers/usb/dwc3/dwc3-qcom.c | 73 ++++++++++++++++++++++++++++++++++----------
1 file changed, 57 insertions(+), 16 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 1dfd024..8902670 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -16,9 +16,11 @@
#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>
+#include <linux/usb/hcd.h>

#include "core.h"

@@ -192,21 +194,34 @@ static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom)

static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)
{
+ struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
+
if (qcom->hs_phy_irq) {
disable_irq_wake(qcom->hs_phy_irq);
disable_irq_nosync(qcom->hs_phy_irq);
}
+ if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_LS) {
+ if (qcom->dp_hs_phy_irq) {
+ disable_irq_wake(qcom->dp_hs_phy_irq);
+ disable_irq_nosync(qcom->dp_hs_phy_irq);
+ }
+ } else if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_HS) {
+ if (qcom->dm_hs_phy_irq) {
+ disable_irq_wake(qcom->dm_hs_phy_irq);
+ disable_irq_nosync(qcom->dm_hs_phy_irq);
+ }
+ } else {

- if (qcom->dp_hs_phy_irq) {
- disable_irq_wake(qcom->dp_hs_phy_irq);
- disable_irq_nosync(qcom->dp_hs_phy_irq);
- }
+ if (qcom->dp_hs_phy_irq) {
+ disable_irq_wake(qcom->dp_hs_phy_irq);
+ disable_irq_nosync(qcom->dp_hs_phy_irq);
+ }

- if (qcom->dm_hs_phy_irq) {
- disable_irq_wake(qcom->dm_hs_phy_irq);
- disable_irq_nosync(qcom->dm_hs_phy_irq);
+ if (qcom->dm_hs_phy_irq) {
+ disable_irq_wake(qcom->dm_hs_phy_irq);
+ disable_irq_nosync(qcom->dm_hs_phy_irq);
+ }
}
-
if (qcom->ss_phy_irq) {
disable_irq_wake(qcom->ss_phy_irq);
disable_irq_nosync(qcom->ss_phy_irq);
@@ -215,21 +230,34 @@ static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)

static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
{
+ struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
+
if (qcom->hs_phy_irq) {
enable_irq(qcom->hs_phy_irq);
enable_irq_wake(qcom->hs_phy_irq);
}
+ if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_LS) {
+ if (qcom->dp_hs_phy_irq) {
+ enable_irq(qcom->dp_hs_phy_irq);
+ enable_irq_wake(qcom->dp_hs_phy_irq);
+ }
+ } else if (dwc->hs_phy_flags & PHY_MODE_USB_HOST_HS) {
+ if (qcom->dm_hs_phy_irq) {
+ enable_irq(qcom->dm_hs_phy_irq);
+ enable_irq_wake(qcom->dm_hs_phy_irq);
+ }
+ } else {

- if (qcom->dp_hs_phy_irq) {
- enable_irq(qcom->dp_hs_phy_irq);
- enable_irq_wake(qcom->dp_hs_phy_irq);
- }
+ if (qcom->dp_hs_phy_irq) {
+ enable_irq(qcom->dp_hs_phy_irq);
+ enable_irq_wake(qcom->dp_hs_phy_irq);
+ }

- if (qcom->dm_hs_phy_irq) {
- enable_irq(qcom->dm_hs_phy_irq);
- enable_irq_wake(qcom->dm_hs_phy_irq);
+ if (qcom->dm_hs_phy_irq) {
+ enable_irq(qcom->dm_hs_phy_irq);
+ enable_irq_wake(qcom->dm_hs_phy_irq);
+ }
}
-
if (qcom->ss_phy_irq) {
enable_irq(qcom->ss_phy_irq);
enable_irq_wake(qcom->ss_phy_irq);
@@ -240,6 +268,14 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)
{
u32 val;
int i;
+ struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
+ struct usb_hcd *hcd = platform_get_drvdata(dwc->xhci);
+ struct generic_pm_domain *genpd;
+
+ genpd = pd_to_genpd(qcom->dev->pm_domain);
+
+ if (genpd && usb_wakeup_enabled_descendants(hcd->self.root_hub))
+ genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP;

if (qcom->is_suspended)
return 0;
@@ -261,6 +297,11 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom)
{
int ret;
int i;
+ struct generic_pm_domain *genpd;
+
+ genpd = pd_to_genpd(qcom->dev->pm_domain);
+ if (genpd)
+ genpd->flags &= !GENPD_FLAG_ACTIVE_WAKEUP;

if (!qcom->is_suspended)
return 0;
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
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