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[0/5] mfd: rn5t618: add ADC support

Message ID 20200117215926.15194-1-andreas@kemnade.info (mailing list archive)
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Series mfd: rn5t618: add ADC support | expand

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Andreas Kemnade Jan. 17, 2020, 9:59 p.m. UTC 
This series adds support for the ADC in the RN5T618/RC5T619.
It depends on the IRQ support added in the RTC support series here:
https://lore.kernel.org/lkml/20191220122416.31881-1-andreas@kemnade.info/

First regmap setup has to be fixed because there is a register
wrongly classified as volatile.

I tested the driver only with the RC5T619 but it should work with the with 
the RN5T618 as well based on these facts:
- The corresponding register definitions originally went into the kernel
  for the RN5T618
- Public datasheet sections about the ADC look same.
- Out-of-tree code for these chips look same regarding to ADC

I marked these untested patches as RFC, and IMHO they require a Tested-By.
Feel free to ignore them if the whole series would be delayed just because
of missing Tested-By for those.

Andreas Kemnade (5):
  mfd: rn5t618: mark ADC control register volatile
  mfd: rn5t618: add ADC subdevice for RC5T619
  iio: adc: rn5t618: Add ADC driver for RN5T618/RC5T619
  mfd: rn5t618: add IRQ definitions for RN5T618
  mfd: rn5t618: add ADC subdevice for RN5T618

 drivers/iio/adc/Kconfig       |  10 ++
 drivers/iio/adc/Makefile      |   1 +
 drivers/iio/adc/rn5t618-adc.c | 266 ++++++++++++++++++++++++++++++++++
 drivers/mfd/rn5t618.c         |  49 ++++++-
 4 files changed, 324 insertions(+), 2 deletions(-)
 create mode 100644 drivers/iio/adc/rn5t618-adc.c