[REPOST PATCH v2 0/3] USB: dwc2: Allow wakeup from suspend; enable for rk3288-veyron

[REPOST PATCH v2 0/3] USB: dwc2: Allow wakeup from suspend; enable for rk3288-veyron

[Douglas Anderson]

This is a re-post of the last 3 patches of a series I posted earlier
at:
  https://lkml.kernel.org/r/20190418001356.124334-1-dianders@chromium.org

The first two patches were applied but the last three weren't because
they didn't apply at the time.  They apply fine now so are ready to
land.

Changes in v2:
- Rebased to mainline atop rk3288 remote wake quirk series.
- rk3288-veyron dts patch new for v2.

Douglas Anderson (3):
  Documentation: dt-bindings: Add snps,need-phy-for-wake for dwc2 USB
  USB: dwc2: Don't turn off the usbphy in suspend if wakeup is enabled
  ARM: dts: rockchip: Allow wakeup from rk3288-veyron's dwc2 USB ports

 .../devicetree/bindings/usb/dwc2.txt          |  3 ++
 arch/arm/boot/dts/rk3288-veyron.dtsi          |  2 +
 drivers/usb/dwc2/core.h                       |  5 +++
 drivers/usb/dwc2/platform.c                   | 43 ++++++++++++++++++-
 4 files changed, 51 insertions(+), 2 deletions(-)

-- 
2.21.0.1020.gf2820cf01a-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[REPOST PATCH v2 3/3] ARM: dts: rockchip: Allow wakeup from rk3288-veyron's dwc2 USB ports

[Douglas Anderson]

We want to be able to wake from USB if a device is plugged in that
wants remote wakeup.  Enable it on both dwc2 controllers.

NOTE: this is added specifically to veyron and not to rk3288 in
general since it's not known whether all rk3288 boards are designed to
support USB wakeup.  It is plausible that some boards could shut down
important rails in S3.

Also note that currently wakeup doesn't seem to happen unless you use
the "deep" suspend mode (where SDRAM is turned off).  Presumably the
shallow suspend mode is gating some sort of clock that's important but
I couldn't easily figure out how to get it working.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

Changes in v2:
- rk3288-veyron dts patch new for v2.

 arch/arm/boot/dts/rk3288-veyron.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index 1252522392c7..1d8bfed7830c 100644
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -424,6 +424,7 @@
 
 &usb_host1 {
 	status = "okay";
+	snps,need-phy-for-wake;
 };
 
 &usb_otg {
@@ -432,6 +433,7 @@
 	assigned-clocks = <&cru SCLK_USBPHY480M_SRC>;
 	assigned-clock-parents = <&usbphy0>;
 	dr_mode = "host";
+	snps,need-phy-for-wake;
 };
 
 &vopb {
-- 
2.21.0.1020.gf2820cf01a-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel