Messages in this thread Patch in this message |  | | Subject | Re: [PATCH v4 12/15] usb: phy: msm: Add support for secondary PHY control | From | "Ivan T. Ivanov" <> | Date | Mon, 18 Nov 2013 14:57:42 +0200 |
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Hi Mark,
On Fri, 2013-11-15 at 16:42 +0000, Mark Rutland wrote: > On Tue, Nov 12, 2013 at 02:51:47PM +0000, Ivan T. Ivanov wrote: > > From: "Ivan T. Ivanov" <iivanov@mm-sol.com> > > > > Allow support to use 2nd HSPHY with USB2 Core. > > Some platforms may have configuration to allow USB controller > > work with any of the two HSPHYs present. By default driver > > configures USB core to use primary HSPHY. Add support to allow > > user select 2nd HSPHY using DT parameter. > > > > Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> > > Cc: Manu Gautam <mgautam@codeaurora.org> > > Cc: devicetree@vger.kernel.org > > --- > > .../devicetree/bindings/usb/msm-hsusb.txt | 6 +++++ > > drivers/usb/phy/phy-msm-usb.c | 24 ++++++++++++++++++-- > > include/linux/usb/msm_hsusb.h | 1 + > > include/linux/usb/msm_hsusb_hw.h | 1 + > > 4 files changed, 30 insertions(+), 2 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/usb/msm-hsusb.txt b/Documentation/devicetree/bindings/usb/msm-hsusb.txt > > index 3f21204..d105ba9 100644 > > --- a/Documentation/devicetree/bindings/usb/msm-hsusb.txt > > +++ b/Documentation/devicetree/bindings/usb/msm-hsusb.txt > > @@ -72,6 +72,12 @@ Optional properties: > > - qcom,phy-init-sequence: PHY configuration sequence. val, reg pairs > > terminate with -1 > > > > +- qcom,phy-num: Select number of pyco-phy to use, can be one of > > + 0 - PHY one, default > > + 1 - Second PHY > > + Some platforms may have configuration to allow USB > > + controller work with any of the two HSPHYs present. > > + > > Only one can be used at a time?
Yes only one of them. Selected at driver init time.
> > [...] > > > @@ -1395,6 +1412,9 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg) > > if (!of_property_read_u32(node, "qcom,otg-control", &val)) > > pdata->otg_control = val; > > > > + if (!of_property_read_u32(node, "qcom,phy-num", &val)) > > + motg->phy_number = val; > > No sanity checking? If not all of your tests on the value of > motg->phy_number are the same form, you may get undepected results...
All checks are the same, but will add explicit check.
Thanks, Ivan
> > Mark.
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