On Tue, Dec 17, 2013 at 10:41:56AM +0100, Kamil Debski wrote: > Hi Matt, > > I am afraid it is not possible. This patch cannot go in without the > new phy driver. It would break Exynos USB functionality. This > is because it changes s3c-hsotg to use the new phy driver. To clarify, I'm proposing that I would bring back the original patch from my earlier postings on the bcm281xx series that preserves the old style usb phy support as a fallback along with the pdata path. > I am working on an updated patch series addressing all the comments. > time permitting I want to post an alternative version - integrating > as much as possible in a single file. This way it would be possible > to have a hands-on comparison of the two approaches we were > discussing with Kishon. > > I estimate that I post it this week. Ok, thanks. In the meantime I'll update my original version of this patch in case your work can't be taken in this window. -Matt > > -----Original Message----- > > From: Matt Porter [mailto:mporter@xxxxxxxxxx] > > Sent: Monday, December 16, 2013 10:40 PM > > To: Kamil Debski > > Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-samsung-soc@xxxxxxxxxxxxxxx; > > linux-usb@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; > > kyungmin.park@xxxxxxxxxxx; kishon@xxxxxx; t.figa@xxxxxxxxxxx; > > s.nawrocki@xxxxxxxxxxx; m.szyprowski@xxxxxxxxxxx; > > gautam.vivek@xxxxxxxxxxx; mat.krawczuk@xxxxxxxxx; > > yulgon.kim@xxxxxxxxxxx; p.paneri@xxxxxxxxxxx; av.tikhomirov@xxxxxxxxxxx; > > jg1.han@xxxxxxxxxxx; galak@xxxxxxxxxxxxxx; Felipe Balbi > > Subject: Re: [PATCH v4 5/9] usb: s3c-hsotg: Use the new Exynos USB phy > > driver with the generic phy framework > > > > On Thu, Dec 05, 2013 at 01:29:35PM +0100, Kamil Debski wrote: > > > Change the used phy driver to the new Exynos USB phy driver that uses > > > the generic phy framework. > > > > > > Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx> > > > Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> > > > --- > > > .../devicetree/bindings/usb/samsung-hsotg.txt | 4 ++++ > > > drivers/usb/gadget/s3c-hsotg.c | 11 ++++++---- > > - > > > 2 files changed, 10 insertions(+), 5 deletions(-) > > > > Kamil, > > > > Can we separate this patch out of this series? My bcm281xx series is > > ready to go except for this dependency. Felipe has noted that there's > > only a week until he locks his tree down for 3.14 [1]. I'm willing to > > update this versus the comment Kishon made on fixing the example if you > > don't have time before then. Let me know. > > > > [1] https://lkml.org/lkml/2013/12/16/555 > > > > Thanks, > > Matt > > > > > diff --git a/Documentation/devicetree/bindings/usb/samsung-hsotg.txt > > > b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt > > > index b83d428..9340d06 100644 > > > --- a/Documentation/devicetree/bindings/usb/samsung-hsotg.txt > > > +++ b/Documentation/devicetree/bindings/usb/samsung-hsotg.txt > > > @@ -24,6 +24,8 @@ Required properties: > > > - first entry: must be "otg" > > > - vusb_d-supply: phandle to voltage regulator of digital section, > > > - vusb_a-supply: phandle to voltage regulator of analog section. > > > +- phys: from general PHY binding: phandle to the PHY device > > > +- phy-names: from general PHY binding: should be "usb2-phy" > > > > > > Example > > > ----- > > > @@ -36,5 +38,7 @@ Example > > > clock-names = "otg"; > > > vusb_d-supply = <&vusb_reg>; > > > vusb_a-supply = <&vusbdac_reg>; > > > + phys = <&usb2phy 0>; > > > + phy-names = "device"; > > > }; > > > > > > diff --git a/drivers/usb/gadget/s3c-hsotg.c > > > b/drivers/usb/gadget/s3c-hsotg.c index eccb147..db096fd 100644 > > > --- a/drivers/usb/gadget/s3c-hsotg.c > > > +++ b/drivers/usb/gadget/s3c-hsotg.c > > > @@ -31,6 +31,7 @@ > > > #include <linux/regulator/consumer.h> #include <linux/of.h> > > > #include <linux/of_platform.h> > > > +#include <linux/phy/phy.h> > > > > > > #include <linux/usb/ch9.h> > > > #include <linux/usb/gadget.h> > > > @@ -162,7 +163,7 @@ struct s3c_hsotg_ep { struct s3c_hsotg { > > > struct device *dev; > > > struct usb_gadget_driver *driver; > > > - struct usb_phy *phy; > > > + struct phy *phy; > > > struct s3c_hsotg_plat *plat; > > > > > > spinlock_t lock; > > > @@ -2905,7 +2906,7 @@ static void s3c_hsotg_phy_enable(struct > > s3c_hsotg *hsotg) > > > dev_dbg(hsotg->dev, "pdev 0x%p\n", pdev); > > > > > > if (hsotg->phy) > > > - usb_phy_init(hsotg->phy); > > > + phy_power_on(hsotg->phy); > > > else if (hsotg->plat->phy_init) > > > hsotg->plat->phy_init(pdev, hsotg->plat->phy_type); } @@ - > > 2922,7 > > > +2923,7 @@ static void s3c_hsotg_phy_disable(struct s3c_hsotg *hsotg) > > > struct platform_device *pdev = to_platform_device(hsotg->dev); > > > > > > if (hsotg->phy) > > > - usb_phy_shutdown(hsotg->phy); > > > + phy_power_off(hsotg->phy); > > > else if (hsotg->plat->phy_exit) > > > hsotg->plat->phy_exit(pdev, hsotg->plat->phy_type); } @@ - > > 3529,7 > > > +3530,7 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg) > > > static int s3c_hsotg_probe(struct platform_device *pdev) { > > > struct s3c_hsotg_plat *plat = dev_get_platdata(&pdev->dev); > > > - struct usb_phy *phy; > > > + struct phy *phy; > > > struct device *dev = &pdev->dev; > > > struct s3c_hsotg_ep *eps; > > > struct s3c_hsotg *hsotg; > > > @@ -3544,7 +3545,7 @@ static int s3c_hsotg_probe(struct > > platform_device *pdev) > > > return -ENOMEM; > > > } > > > > > > - phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); > > > + phy = devm_phy_get(&pdev->dev, "usb2-phy"); > > > if (IS_ERR(phy)) { > > > /* Fallback for pdata */ > > > plat = dev_get_platdata(&pdev->dev); > > > -- > > > 1.7.9.5 > > > > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |