Re: [PATCH 0/4] Start getting rid of pdata callbacks with gpio_find_by_chip_name()

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Hi Tony,

On Friday 02 March 2012 12:25 AM, Tony Lindgren wrote:
Hi all,

This series adds gpio_find_by_name() that allows finding
GPIOs on specific gpio_chips. As the GPIO numbers can be
dynamic, it's hard to find the GPIO numbers from drivers
using them directly.

So far we've dealt with this using platform specific callbacks,
but that is messy. This series removes the needs for these
callbacks for omap hsmmc driver. Further callbacks can be
removed people are OK with adding gpio_find_by_name().

This series is based on the omap fixes-non-critical that's
needed for the arch/arm/mach-omap2 parts of this series.

I tested these on my beagle/panda/omap4sdp and they seem to
work fine, also fixing the broken panda card detect (due to
missing card_detect_irq in the board file). There are still
issues however when I build twl4030-gpio as a module, which I
already commented on, and the fact that the init sequence now
works by luck :)
The other issue also is that the multiple insmod/rmmod test
suggested by Russell still fails, since the second time around
the gpio_requests in the board callback fail because they are
not freed when you do a module unload/unbind.
That would need this patch from me to add the .teardown
hooks
http://marc.info/?l=linux-omap&m=133007767831297&w=2

regards,
Rajendra


Regards,

Tony

---

Tony Lindgren (4):
       gpiolib: Add gpiochip_find_by_name() and gpio_find_by_chip_name()
       mmc: omap_hsmmc: Use gpio_find_by_chip_name() for omap_hsmmc_gpio_init()
       mmc: omap_hsmmc: Use GPIO offset for external GPIO chips
       mmc: omap_hsmmc: Simplify init for twl6030 MMC card detect


  arch/arm/mach-omap2/board-3430sdp.c          |   13 +-
  arch/arm/mach-omap2/board-4430sdp.c          |   45 --------
  arch/arm/mach-omap2/board-cm-t35.c           |    8 -
  arch/arm/mach-omap2/board-devkit8000.c       |    7 -
  arch/arm/mach-omap2/board-igep0020.c         |    8 -
  arch/arm/mach-omap2/board-omap3beagle.c      |    9 +-
  arch/arm/mach-omap2/board-omap3evm.c         |    8 -
  arch/arm/mach-omap2/board-omap3pandora.c     |   13 +-
  arch/arm/mach-omap2/board-omap3stalker.c     |    8 -
  arch/arm/mach-omap2/board-omap3touchbook.c   |    7 -
  arch/arm/mach-omap2/board-omap4panda.c       |   52 ----------
  arch/arm/mach-omap2/board-zoom-peripherals.c |    7 -
  arch/arm/mach-omap2/hsmmc.c                  |    3 +
  arch/arm/mach-omap2/hsmmc.h                  |    5 +
  arch/arm/plat-omap/include/plat/mmc.h        |    3 +
  drivers/gpio/gpio-twl4030.c                  |    2
  drivers/gpio/gpiolib.c                       |   47 +++++++++
  drivers/mfd/twl6030-irq.c                    |   33 +++---
  drivers/mmc/host/omap_hsmmc.c                |  140 +++++++++++++++++++-------
  include/asm-generic/gpio.h                   |    3 -
  20 files changed, 204 insertions(+), 217 deletions(-)


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