Messages in this thread | | | From | Venu Byravarasu <> | Date | Wed, 20 Mar 2013 17:45:43 +0530 | Subject | RE: [PATCH 1/7] ARM: tegra: finalize USB EHCI and PHY bindings |
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> -----Original Message----- > From: kishon [mailto:kishon@ti.com] > Sent: Wednesday, March 20, 2013 4:49 PM > To: Venu Byravarasu > Cc: gregkh@linuxfoundation.org; stern@rowland.harvard.edu; > balbi@ti.com; linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org; > swarren@wwwdotorg.org; linux-tegra@vger.kernel.org; devicetree- > discuss@lists.ozlabs.org > Subject: Re: [PATCH 1/7] ARM: tegra: finalize USB EHCI and PHY bindings > > Hi, > > On Monday 18 March 2013 05:59 PM, Venu Byravarasu wrote: > > The existing Tegra USB bindings have a few issues: > > > > 1) Many properties are documented as being part of the EHCI controller > > node, yet they apply more to the PHY device. They should be moved. > > > > 2) Some registers in PHY1 are shared with PHY3, and hence PHY3 needs a > > reg entry to point at PHY1's register space. We can't assume the PHY1 > > driver is present, so the PHY3 driver will directly access those > > registers. > > > > 3) The list of clocks required by the PHY was missing some required > > entries. > > > > This patch fixes the binding definition to resolve these issues. > > > > Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> > > --- > > .../bindings/usb/nvidia,tegra20-ehci.txt | 27 +++---------------- > > .../bindings/usb/nvidia,tegra20-usb-phy.txt | 27 > +++++++++++++++++-- > > 2 files changed, 29 insertions(+), 25 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt > b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt > > index 34c9528..df09330 100644 > > --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt > > +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt > > @@ -6,27 +6,10 @@ Practice : Universal Serial Bus" with the following > modifications > > and additions : > > > > Required properties : > > - - compatible : Should be "nvidia,tegra20-ehci" for USB controllers > > - used in host mode. > > - - phy_type : Should be one of "ulpi" or "utmi". > > > > Optional properties: > > - - dr_mode : dual role mode. Indicates the working mode for
> > index 6bdaba2..7ceccd3 100644 > > --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt > > +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt > > @@ -4,8 +4,24 @@ The device node for Tegra SOC USB PHY: > > > > Required properties : > > + - phy_type : Should be one of "utmi", "ulpi" or "hsic". > > dt property names generally dont have "_".
Thanks Kishon, for your comments. Is it mandatory or optional? If it is mandatory, then I might have to change dr_mode as well along with phy_type.
> > Thanks > Kishon
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