Am 2015-10-19 um 21:00 schrieb Joachim Eastwood: > Add support for Freescale MMA7455L/MMA7456L 3-axis in 10-bit mode for > I2C and SPI bus. This rather simple driver that currently doesn't > support all the hardware features of MMA7455L/MMA7456L. > > Tested on Embedded Artist's LPC4357 Dev Kit with MMA7455L on I2C bus. > > Data sheets for the two devices can be found here: > http://cache.freescale.com/files/sensors/doc/data_sheet/MMA7455L.pdf > http://cache.freescale.com/files/sensors/doc/data_sheet/MMA7456L.pdf > > Signed-off-by: Joachim Eastwood <manabian@xxxxxxxxx> > --- > Hi, > > This version address the comments from Lars-Peter Clausen, Peter > Meerwald and Martin Kepplinger. Thanks for all the constructive > feedback! > > Changes since v1: > * limit retries to 3 in mma7455_drdy > * remove mma7455_show_scale_avail > * use chan->address instead of chan->scan_index for reg addr > * check that val2 is 0 when setting sample freq > * use __le16 to hint about endianess in mma7455_trigger_handler > * fix endianess in mma7455_read_raw function > * add mma7456 id > * split it into several source files to support both i2c and spi > > I compared the register summary for MMA7455L/MMA7456L and I am > unable to find any difference at all. > > drivers/iio/accel/Kconfig | 22 +++ > drivers/iio/accel/Makefile | 5 + > drivers/iio/accel/mma7455.h | 20 +++ > drivers/iio/accel/mma7455_core.c | 321 +++++++++++++++++++++++++++++++++++++++ > drivers/iio/accel/mma7455_i2c.c | 57 +++++++ > drivers/iio/accel/mma7455_spi.c | 53 +++++++ > 6 files changed, 478 insertions(+) > create mode 100644 drivers/iio/accel/mma7455.h > create mode 100644 drivers/iio/accel/mma7455_core.c > create mode 100644 drivers/iio/accel/mma7455_i2c.c > create mode 100644 drivers/iio/accel/mma7455_spi.c > > diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig > index a59047d7657e..3c87a4ae317a 100644 > --- a/drivers/iio/accel/Kconfig > +++ b/drivers/iio/accel/Kconfig > @@ -99,6 +99,28 @@ config KXCJK1013 > To compile this driver as a module, choose M here: the module will > be called kxcjk-1013. > > +config MMA7455 > + tristate "Freescale MMA7455L/MMA7456L Accelerometer Driver" > + depends on I2C || SPI_MASTER > + select IIO_BUFFER > + select IIO_TRIGGERED_BUFFER > + select MMA7455_I2C if I2C > + select MMA7455_SPI if SPI > + help > + Say yes here to build support for the Freescale MMA7455L and > + MMA7456L 3-axis accelerometer. > + > + To compile this driver as a module, choose M here: the module > + will be called mma7455_i2c or mma7455_spi. > + > +config MMA7455_I2C > + tristate > + select REGMAP_I2C > + > +config MMA7455_SPI > + tristate > + select REGMAP_SPI > + > config MMA8452 > tristate "Freescale MMA8452Q Accelerometer Driver" > depends on I2C > diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile > index ebd2675b2a02..dfb9289393fb 100644 > --- a/drivers/iio/accel/Makefile You don't base your work on top of the current -next tree. But that's where this most likely will go, if integrated. Please make it apply to linux-next. -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
