From: Matthias Kaehlcke <mka@chromium.org>
To: Stephen Boyd <swboyd@chromium.org>
Cc: Alan Stern <stern@rowland.harvard.edu>,
Felipe Balbi <balbi@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mathias Nyman <mathias.nyman@intel.com>,
Rob Herring <robh+dt@kernel.org>,
Bastien Nocera <hadess@hadess.net>,
Krzysztof Kozlowski <krzk@kernel.org>,
Douglas Anderson <dianders@chromium.org>,
Peter Chen <peter.chen@kernel.org>,
Ravi Chandra Sadineni <ravisadineni@chromium.org>,
linux-usb@vger.kernel.org, Roger Quadros <rogerq@kernel.org>,
Michal Simek <michal.simek@xilinx.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v19 5/5] arm64: dts: qcom: sc7180-trogdor: Add nodes for onboard USB hub
Date: Wed, 12 Jan 2022 12:51:41 -0800 [thread overview]
Message-ID: <Yd8/XdMuAVW0fM6e@google.com> (raw)
In-Reply-To: <CAE-0n51VZobLjRGZFYquEMgDutfmsAC0j8mj6cM7fvK7Myeczw@mail.gmail.com>
On Wed, Jan 12, 2022 at 12:47:15PM -0800, Stephen Boyd wrote:
> Quoting Matthias Kaehlcke (2022-01-12 11:10:48)
> > Add nodes for the onboard USB hub on trogdor devices. Remove the
> > 'always-on' property from the hub regulator, since the regulator
> > is now managed by the onboard_usb_hub driver.
> >
> > Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
> > ---
>
> One question below
>
> Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Thanks!
> > .../boot/dts/qcom/sc7180-trogdor-lazor-r0.dts | 19 ++++++++-----------
> > .../boot/dts/qcom/sc7180-trogdor-lazor-r1.dts | 12 +++++-------
> > .../dts/qcom/sc7180-trogdor-pompom-r1.dts | 11 ++++-------
> > .../arm64/boot/dts/qcom/sc7180-trogdor-r1.dts | 19 ++++++++-----------
> > arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 19 ++++++++++++++++++-
> > 5 files changed, 43 insertions(+), 37 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> > index d4f4441179fc..cd31460b3bd6 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> > @@ -202,7 +202,6 @@ pp3300_hub: pp3300-hub {
> > pinctrl-names = "default";
> > pinctrl-0 = <&en_pp3300_hub>;
> >
> > - regulator-always-on;
> > regulator-boot-on;
>
> Is regulator-boot-on necessary?
It tells the kernel that the regulator is already on at boot, and avoids an
off-on cycle that would happen otherwise (internal reference: b/185972336).
next prev parent reply other threads:[~2022-01-12 20:51 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-12 19:10 [PATCH v19 0/5] usb: misc: Add onboard_usb_hub driver Matthias Kaehlcke
2022-01-12 19:10 ` [PATCH v19 1/5] of/platform: Add stubs for of_platform_device_create/destroy() Matthias Kaehlcke
2022-01-12 22:01 ` Stephen Boyd
2022-01-13 1:02 ` Doug Anderson
2022-01-12 19:10 ` [PATCH v19 2/5] driver core: Export device_is_bound() Matthias Kaehlcke
2022-01-13 1:02 ` Doug Anderson
2022-01-13 3:49 ` Stephen Boyd
2022-01-12 19:10 ` [PATCH v19 3/5] usb: misc: Add onboard_usb_hub driver Matthias Kaehlcke
2022-01-13 1:02 ` Doug Anderson
2022-01-13 3:49 ` Stephen Boyd
2022-01-13 18:38 ` Matthias Kaehlcke
2022-01-12 19:10 ` [PATCH v19 4/5] usb: core: hcd: Create platform devices for onboard hubs in probe() Matthias Kaehlcke
2022-01-13 1:03 ` Doug Anderson
2022-01-13 3:50 ` Stephen Boyd
2022-01-12 19:10 ` [PATCH v19 5/5] arm64: dts: qcom: sc7180-trogdor: Add nodes for onboard USB hub Matthias Kaehlcke
2022-01-12 20:47 ` Stephen Boyd
2022-01-12 20:51 ` Matthias Kaehlcke [this message]
2022-01-12 22:00 ` Stephen Boyd
2022-01-13 1:03 ` Doug Anderson
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