Re: [PATCH 13/21] usb: chipidea: msm: Allow core to get usb phy

Peter Chen
2016-06-29T11:41:14Z

On Wed, Jun 29, 2016 at 02:48:11PM +0800, Peter Chen wrote:
> On Sun, Jun 26, 2016 at 12:28:30AM -0700, Stephen Boyd wrote:
> > The chipidea core gets the usb phy and initializes the phy at the
> > right point now so we don't need to get the phy in this driver.
> >
> > Cc: Peter Chen <peter.chen@nxp.com>
> > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
> > ---
> > drivers/usb/chipidea/ci_hdrc_msm.c | 21 ---------------------
> > 1 file changed, 21 deletions(-)
> >
> > diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
> > index 430856ef1be3..07cccd24a87f 100644
> > --- a/drivers/usb/chipidea/ci_hdrc_msm.c
> > +++ b/drivers/usb/chipidea/ci_hdrc_msm.c
> > @@ -24,15 +24,6 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
> > dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n");
> > /* use AHB transactor, allow posted data writes */
> > hw_write_id_reg(ci, HS_PHY_AHB_MODE, 0xffffffff, 0x8);
> > - usb_phy_init(ci->usb_phy);
> > - break;
> > - case CI_HDRC_CONTROLLER_STOPPED_EVENT:
> > - dev_dbg(dev, "CI_HDRC_CONTROLLER_STOPPED_EVENT received\n");
> > - /*
> > - * Put the phy in non-driving mode. Otherwise host
> > - * may not detect soft-disconnection.
> > - */
> > - usb_phy_notify_disconnect(ci->usb_phy, USB_SPEED_UNKNOWN);
> > break;
> > default:
> > dev_dbg(dev, "unknown ci_hdrc event\n");
> > @@ -53,21 +44,9 @@ static struct ci_hdrc_platform_data ci_hdrc_msm_platdata = {
> > static int ci_hdrc_msm_probe(struct platform_device *pdev)
> > {
> > struct platform_device *plat_ci;
> > - struct usb_phy *phy;
> >
> > dev_dbg(&pdev->dev, "ci_hdrc_msm_probe\n");
> >
> > - /*
> > - * OTG(PHY) driver takes care of PHY initialization, clock management,
> > - * powering up VBUS, mapping of registers address space and power
> > - * management.
> > - */
> > - phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
> > - if (IS_ERR(phy))
> > - return PTR_ERR(phy);
> > -
> > - ci_hdrc_msm_platdata.usb_phy = phy;
> > -
> > plat_ci = ci_hdrc_add_device(&pdev->dev,
> > pdev->resource, pdev->num_resources,
> > &ci_hdrc_msm_platdata);
> > --
>

Wait, how about the UTMI PHY? You don't have a platform which needs
to get PHY through the phandle?

--

Best Regards,
Peter Chen