linux-kernel - [PATCHv2 0/4] Meson-8b and Meson-gxbb Fix some missing code

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Date:   Fri, 16 Jul 2021 10:36:32 +0000
From:   Anand Moon <linux.amoon@...il.com>
To:     linux-phy@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Anand Moon <linux.amoon@...il.com>,
        Matt Corallo <oc2udbzfd@...tcorallo.com>,
        Rob Herring <robh+dt@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Emiliano Ingrassia <ingrassia@...genesys.com>,
        Brian Kim <brian.kim@...dkernel.com>,
        devicetree@...r.kernel.org
Subject: [PATCHv2 0/4] Meson-8b and Meson-gxbb Fix some missing code

On Odroid C1+ and Odroid C2 USB feature is broken

It's being observed the after initiation of USB phy
the USB port goes in to suspend state, If we pass usbcore.autosuspend=-1
via command line USB hotplug seen to be working.

Another issue I observed is increase of USB interrupts event
even if there is not much activity on USB ports.

$ cat /proc/interrupts | grep usb
 35:   26462800          0          0          0     GIC-0  63 Level
			c90c0000.usb, dwc2_hsotg:usb1

Changes added power node to usb phy and small code cleanup
in usb phy.

Previous version RFC.
[0] https://patchwork.kernel.org/project/linux-amlogic/cover/20210617194154.2397-1-linux.amoon@gmail.com/
Dopped the reoder of code changes as of now.

V1 > changes Fixed the GPIO input signal on Odroid C1+/C2
     New patch added to fix Odroid C2.

Thanks
-Anand

Anand Moon (4):
  ARM: dts: meson8b: odroidc1: Add usb phy power node
  arm64: dts: amlogic: odroidc2: Fix the chip enable signal for usb
    power
  phy: amlogic: meson8b-usb2: Power off the PHY by putting it into reset
    mode
  phy: amlogic: meson8b-usb2: don't log an error on -EPROBE_DEFER

 arch/arm/boot/dts/meson8b-odroidc1.dts        | 19 +++++++++++++++++++
 .../boot/dts/amlogic/meson-gxbb-odroidc2.dts  |  7 +++----
 drivers/phy/amlogic/phy-meson8b-usb2.c        |  8 ++++++--
 3 files changed, 28 insertions(+), 6 deletions(-)

-- 
2.32.0