[PATCH v3 0/5] usb: phy: samsung: Introducing usb phy driver for samsung SoCs

On Fri, Aug 10, 2012 at 7:03 AM, Joonyoung Shim [off-list ref] wrote:

Hi, Praveen.


On 08/08/2012 04:40 PM, Praveen Paneri wrote:

quoted

Changes from v2:
Changed the driver filenames to samsung-usbphy
Changed 's3c' to 'samsung' for platform device as well as platform data
Moved platform data structure to a separate file
Rectified coding style related errors

Changes from v1:
Rebased patches to latest usb-next branch
Changed the name 'sec_usbphy' to 'samsung_usbphy'

This patch set introduces a phy driver for samsung SoCs. It uses the
existing
transceiver infrastructure to provide phy control functions. Use of this
driver
can be extended for usb host phy as well.

How can you support usb host phy? I cannot choose to use which phy when
call init or shutdown of phy at current phy framework.

If you are talking about choosing between PHY0 (for device) and PHY1
(for host), I think you can make use of the flags available in usb_phy
to pass that information to phy driver and that can be handled there.
This is just one way I have successfully implement two different phy
control. There might be a better way to do that.

Thanks
Praveen

Thanks.

quoted

Over the period of time all the phy
related code for most of the samsung SoCs can be integrated here.
Removing the existing phy code from mach-s3c64xx. Same can be done for
other SoCs
when they start supporting this phy driver.
This driver is tested with smdk6410 and Exynos4210(with DT).

Praveen Paneri (5):
   usb: phy: samsung: Introducing usb phy driver for hsotg
   usb: s3c-hsotg: Adding phy driver support
   ARM: S3C64XX: Removing old phy setup code
   ARM: S3C64XX: Enabling samsung-usbphy driver
   ARM: Exynos4210: Enabling samsung-usbphy driver

  .../devicetree/bindings/usb/samsung-usbphy.txt     |    9 +
  arch/arm/boot/dts/exynos4210.dtsi                  |    5 +
  arch/arm/mach-exynos/include/mach/map.h            |    1 +
  arch/arm/mach-exynos/mach-exynos4-dt.c             |    8 +
  arch/arm/mach-exynos/setup-usb-phy.c               |   13 +
  arch/arm/mach-s3c64xx/include/mach/map.h           |    2 +
  arch/arm/mach-s3c64xx/mach-crag6410.c              |    7 +-
  arch/arm/mach-s3c64xx/mach-smartq.c                |    8 +-
  arch/arm/mach-s3c64xx/mach-smdk6410.c              |    7 +-
  arch/arm/mach-s3c64xx/setup-usb-phy.c              |   79 +----
  arch/arm/plat-samsung/devs.c                       |   33 ++
  arch/arm/plat-samsung/include/plat/devs.h          |    1 +
  arch/arm/plat-samsung/include/plat/usb-phy.h       |    1 +
  drivers/usb/gadget/s3c-hsotg.c                     |   40 ++-
  drivers/usb/phy/Kconfig                            |    8 +
  drivers/usb/phy/Makefile                           |    1 +
  drivers/usb/phy/samsung-usbphy.c                   |  355
++++++++++++++++++++
  drivers/usb/phy/samsung-usbphy.h                   |   48 +++
  include/linux/platform_data/samsung-usbphy.h       |   27 ++
  19 files changed, 562 insertions(+), 91 deletions(-)
  create mode 100644
Documentation/devicetree/bindings/usb/samsung-usbphy.txt
  create mode 100644 drivers/usb/phy/samsung-usbphy.c
  create mode 100644 drivers/usb/phy/samsung-usbphy.h
  create mode 100644 include/linux/platform_data/samsung-usbphy.h


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