iio: pressure: bmp280: add SPI interface driver

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This patch mimics the SPI functionality found in the misc driver in
drivers/misc/bh085-spi.c to make it possible to reuse the existing
BMP280/BMP180/BMP085 driver with all clients of the other driver.
The adoption is straight-forward since like the other driver, it is
a simple matter of using regmap.

This driver is also so obviously inspired/copied from the old misc
driver in drivers/misc/bmp085.c that I just took the liberty to
add in the authors of the other drivers + self in the core driver
file.

The MISC driver also supports a variant named "BMP181" so include
that here to be complete in comparison to the old driver.

The bus mapping code for SPI was written by Akinobu Mita.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Tested-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

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This commit is contained in:

Linus Walleij 2016-06-30 03:48:51 +02:00 • committed by Jonathan Cameron

parent 17118843a5

commit b26b4e9170

4 changed files with 140 additions and 3 deletions

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15

drivers/iio/pressure/Kconfig

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1

drivers/iio/pressure/Makefile

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4

drivers/iio/pressure/bmp280-core.c

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123

drivers/iio/pressure/bmp280-spi.c

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