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[0/8] Implement get_multiple for ACCES and PC104 drivers

Message ID cover.1520886945.git.vilhelm.gray@gmail.com
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Series Implement get_multiple for ACCES and PC104 drivers | expand

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William Breathitt Gray March 12, 2018, 8:48 p.m. UTC 
This patchset implements get_multiple callbacks for the PC104 GPIO
drivers as well as the PCI-IDIO-16 and PCIe-IDIO-24 GPIO drivers. These
devices all acquire the multiple input lines with a single read, so
utilizing the get_multiple callback can provide improvement for those
users who regularly access multiple input lines.

While developing this patchset I noticed many of these devices make use
of Intel 8255 compatible interfaces for their I/O. I may write a generic
8255 GPIO driver in the future to reduce some of the redundant code I
see pop among the drivers for these devices.

William Breathitt Gray (8):
  iio: stx104: Implement get_multiple callback
  gpio: 104-idio-16: Implement get_multiple callback
  gpio: pci-idio-16: Implement get_multiple callback
  gpio: pcie-idio-24: Implement get_multiple callback
  gpio: 104-dio-48e: Implement get_multiple callback
  gpio: 104-idi-48: Implement get_multiple callback
  gpio: gpio-mm: Implement get_multiple callback
  gpio: ws16c48: Implement get_multiple callback

 drivers/gpio/gpio-104-dio-48e.c  | 41 ++++++++++++++++++++++++++
 drivers/gpio/gpio-104-idi-48.c   | 41 ++++++++++++++++++++++++++
 drivers/gpio/gpio-104-idio-16.c  | 15 ++++++++++
 drivers/gpio/gpio-gpio-mm.c      | 41 ++++++++++++++++++++++++++
 drivers/gpio/gpio-pci-idio-16.c  | 48 ++++++++++++++++++++++++++++++
 drivers/gpio/gpio-pcie-idio-24.c | 63 ++++++++++++++++++++++++++++++++++++++++
 drivers/gpio/gpio-ws16c48.c      | 39 +++++++++++++++++++++++++
 drivers/iio/adc/stx104.c         | 11 +++++++
 8 files changed, 299 insertions(+)