RE: [PATCH v3 1/3] phy: Add new Exynos USB PHY driver

From: Kamil Debski
Date: Wed Nov 06 2013 - 05:56:59 EST


Hi,

> From: Jingoo Han [mailto:jg1.han@xxxxxxxxxxx]
> Sent: Wednesday, November 06, 2013 2:03 AM
>
> On Wednesday, November 06, 2013 1:13 AM, Kamil Debski wrote:
> >
> > Add a new driver for the Exynos USB PHY. The new driver uses the
> > generic PHY framework. The driver includes support for the Exynos
> 4x10
> > and 4x12 SoC families.
> >
> > Signed-off-by: Kamil Debski <k.debski@xxxxxxxxxxx>
> > Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> > ---
> > .../devicetree/bindings/phy/samsung-usbphy.txt | 52 ++++
> > drivers/phy/Kconfig | 23 +-
> > drivers/phy/Makefile | 4 +
> > drivers/phy/phy-exynos-usb2.c | 234
> ++++++++++++++
> > drivers/phy/phy-exynos-usb2.h | 87 ++++++
> > drivers/phy/phy-exynos4210-usb2.c | 272
> ++++++++++++++++
> > drivers/phy/phy-exynos4212-usb2.c | 324
> ++++++++++++++++++++
> > 7 files changed, 995 insertions(+), 1 deletion(-) create mode
> 100644
> > Documentation/devicetree/bindings/phy/samsung-usbphy.txt
> > create mode 100644 drivers/phy/phy-exynos-usb2.c create mode 100644
> > drivers/phy/phy-exynos-usb2.h create mode 100644
> > drivers/phy/phy-exynos4210-usb2.c create mode 100644
> > drivers/phy/phy-exynos4212-usb2.c
>
> [....]
>
> > diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index
> > d0caae9..c87bc65 100644
> > --- a/drivers/phy/Makefile
> > +++ b/drivers/phy/Makefile
> > @@ -7,3 +7,7 @@ obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO) += phy-exynos-dp-
> video.o
> > obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO) += phy-exynos-mipi-video.o
> > obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o
> > obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o
> > +obj-$(CONFIG_PHY_EXYNOS5250_USB) += phy-exynos5250-usb.o
>
> Hi Kamil,
>
> Would you add 'phy-exynos5250-usb.c' file? :-)
>
> Now, I am testing Exynos5250 USB HOST with your patchset.
> However, it makes error because there is no PHY driver for Exynos5250.
>
> WARNING: CPU: 0 PID: 18 at drivers/phy/phy-core.c:366
> phy_get+0x1e8/0x224()
> Device: exynos-ehci
> missing string
> .....

I have to rewrite the power_on/power_off function in Exynos 5250 and I will
include it in the next version.

Best wishes,
--
Kamil Debski
Samsung R&D Institute Poland


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