On 01/09/15 12:45, Martin Kepplinger wrote: > MMA8652FC and MMA8653FC don't provide the transient interrupt source, so > the motion interrupt source is used by providing a new iio_chan_spec > definition, so that other supported devices are not affected by this. > > Datasheets for the newly supported devices are available at Freescale's > website: > > http://cache.freescale.com/files/sensors/doc/data_sheet/MMA8652FC.pdf > http://cache.freescale.com/files/sensors/doc/data_sheet/MMA8653FC.pdf > > Signed-off-by: Martin Kepplinger <[email protected]> > Signed-off-by: Christoph Muellner <[email protected]> Applied. > --- > .../devicetree/bindings/iio/accel/mma8452.txt | 4 +- > drivers/iio/accel/Kconfig | 2 +- > drivers/iio/accel/mma8452.c | 98 > ++++++++++++++++++++-- > 3 files changed, 95 insertions(+), 9 deletions(-) > > diff --git a/Documentation/devicetree/bindings/iio/accel/mma8452.txt > b/Documentation/devicetree/bindings/iio/accel/mma8452.txt > index c3bc272..e3c3746 100644 > --- a/Documentation/devicetree/bindings/iio/accel/mma8452.txt > +++ b/Documentation/devicetree/bindings/iio/accel/mma8452.txt > @@ -1,10 +1,12 @@ > -Freescale MMA8452Q or MMA8453Q triaxial accelerometer > +Freescale MMA8452Q, MMA8453Q, MMA8652FC or MMA8653FC triaxial accelerometer > > Required properties: > > - compatible: should contain one of > * "fsl,mma8452" > * "fsl,mma8453" > + * "fsl,mma8652" > + * "fsl,mma8653" > - reg: the I2C address of the chip > > Optional properties: > diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig > index e4075a0..a37155d 100644 > --- a/drivers/iio/accel/Kconfig > +++ b/drivers/iio/accel/Kconfig > @@ -106,7 +106,7 @@ config MMA8452 > select IIO_TRIGGERED_BUFFER > help > Say yes here to build support for the following Freescale 3-axis > - accelerometers: MMA8452Q, MMA8453Q. > + accelerometers: MMA8452Q, MMA8453Q, MMA8652FC, MMA8653FC. > > To compile this driver as a module, choose M here: the module > will be called mma8452. > diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c > index 6b1a862..59b4455 100644 > --- a/drivers/iio/accel/mma8452.c > +++ b/drivers/iio/accel/mma8452.c > @@ -3,6 +3,8 @@ > * > * MMA8452Q (12 bit) > * MMA8453Q (10 bit) > + * MMA8652FC (12 bit) > + * MMA8653FC (10 bit) > * > * Copyright 2014 Peter Meerwald <[email protected]> > * > @@ -84,6 +86,8 @@ > > #define MMA8452_DEVICE_ID 0x2a > #define MMA8453_DEVICE_ID 0x3a > +#define MMA8652_DEVICE_ID 0x4a > +#define MMA8653_DEVICE_ID 0x5a > > struct mma8452_data { > struct i2c_client *client; > @@ -791,6 +795,26 @@ static struct attribute_group > mma8452_event_attribute_group = { > .num_event_specs = ARRAY_SIZE(mma8452_transient_event), \ > } > > +#define MMA8652_CHANNEL(axis, idx, bits) { \ > + .type = IIO_ACCEL, \ > + .modified = 1, \ > + .channel2 = IIO_MOD_##axis, \ > + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ > + BIT(IIO_CHAN_INFO_CALIBBIAS), \ > + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \ > + BIT(IIO_CHAN_INFO_SCALE), \ > + .scan_index = idx, \ > + .scan_type = { \ > + .sign = 's', \ > + .realbits = (bits), \ > + .storagebits = 16, \ > + .shift = 16 - (bits), \ > + .endianness = IIO_BE, \ > + }, \ > + .event_spec = mma8452_motion_event, \ > + .num_event_specs = ARRAY_SIZE(mma8452_motion_event), \ > +} > + > static const struct iio_chan_spec mma8452_channels[] = { > MMA8452_CHANNEL(X, 0, 12), > MMA8452_CHANNEL(Y, 1, 12), > @@ -805,9 +829,25 @@ static const struct iio_chan_spec mma8453_channels[] = { > IIO_CHAN_SOFT_TIMESTAMP(3), > }; > > +static const struct iio_chan_spec mma8652_channels[] = { > + MMA8652_CHANNEL(X, 0, 12), > + MMA8652_CHANNEL(Y, 1, 12), > + MMA8652_CHANNEL(Z, 2, 12), > + IIO_CHAN_SOFT_TIMESTAMP(3), > +}; > + > +static const struct iio_chan_spec mma8653_channels[] = { > + MMA8652_CHANNEL(X, 0, 10), > + MMA8652_CHANNEL(Y, 1, 10), > + MMA8652_CHANNEL(Z, 2, 10), > + IIO_CHAN_SOFT_TIMESTAMP(3), > +}; > + > enum { > mma8452, > mma8453, > + mma8652, > + mma8653, > }; > > static const struct mma_chip_info mma_chip_info_table[] = { > @@ -850,6 +890,38 @@ static const struct mma_chip_info mma_chip_info_table[] > = { > .ev_ths_mask = MMA8452_TRANSIENT_THS_MASK, > .ev_count = MMA8452_TRANSIENT_COUNT, > }, > + [mma8652] = { > + .chip_id = MMA8652_DEVICE_ID, > + .channels = mma8652_channels, > + .num_channels = ARRAY_SIZE(mma8652_channels), > + .mma_scales = { {0, 9577}, {0, 19154}, {0, 38307} }, > + .ev_cfg = MMA8452_FF_MT_CFG, > + .ev_cfg_ele = MMA8452_FF_MT_CFG_ELE, > + .ev_cfg_chan_shift = 3, > + .ev_src = MMA8452_FF_MT_SRC, > + .ev_src_xe = MMA8452_FF_MT_SRC_XHE, > + .ev_src_ye = MMA8452_FF_MT_SRC_YHE, > + .ev_src_ze = MMA8452_FF_MT_SRC_ZHE, > + .ev_ths = MMA8452_FF_MT_THS, > + .ev_ths_mask = MMA8452_FF_MT_THS_MASK, > + .ev_count = MMA8452_FF_MT_COUNT, > + }, > + [mma8653] = { > + .chip_id = MMA8653_DEVICE_ID, > + .channels = mma8653_channels, > + .num_channels = ARRAY_SIZE(mma8653_channels), > + .mma_scales = { {0, 38307}, {0, 76614}, {0, 153228} }, > + .ev_cfg = MMA8452_FF_MT_CFG, > + .ev_cfg_ele = MMA8452_FF_MT_CFG_ELE, > + .ev_cfg_chan_shift = 3, > + .ev_src = MMA8452_FF_MT_SRC, > + .ev_src_xe = MMA8452_FF_MT_SRC_XHE, > + .ev_src_ye = MMA8452_FF_MT_SRC_YHE, > + .ev_src_ze = MMA8452_FF_MT_SRC_ZHE, > + .ev_ths = MMA8452_FF_MT_THS, > + .ev_ths_mask = MMA8452_FF_MT_THS_MASK, > + .ev_count = MMA8452_FF_MT_COUNT, > + }, > }; > > static struct attribute *mma8452_attributes[] = { > @@ -972,6 +1044,8 @@ static int mma8452_reset(struct i2c_client *client) > static const struct of_device_id mma8452_dt_ids[] = { > { .compatible = "fsl,mma8452", .data = &mma_chip_info_table[mma8452] }, > { .compatible = "fsl,mma8453", .data = &mma_chip_info_table[mma8453] }, > + { .compatible = "fsl,mma8652", .data = &mma_chip_info_table[mma8652] }, > + { .compatible = "fsl,mma8653", .data = &mma_chip_info_table[mma8653] }, > { } > }; > MODULE_DEVICE_TABLE(of, mma8452_dt_ids); > @@ -984,13 +1058,6 @@ static int mma8452_probe(struct i2c_client *client, > int ret; > const struct of_device_id *match; > > - ret = i2c_smbus_read_byte_data(client, MMA8452_WHO_AM_I); > - if (ret < 0) > - return ret; > - > - if (ret != MMA8452_DEVICE_ID && ret != MMA8453_DEVICE_ID) > - return -ENODEV; > - > match = of_match_device(mma8452_dt_ids, &client->dev); > if (!match) { > dev_err(&client->dev, "unknown device model\n"); > @@ -1006,6 +1073,21 @@ static int mma8452_probe(struct i2c_client *client, > mutex_init(&data->lock); > data->chip_info = match->data; > > + ret = i2c_smbus_read_byte_data(client, MMA8452_WHO_AM_I); > + if (ret < 0) > + return ret; > + > + switch (ret) { > + case MMA8452_DEVICE_ID: > + case MMA8453_DEVICE_ID: > + case MMA8652_DEVICE_ID: > + case MMA8653_DEVICE_ID: > + if (ret == data->chip_info->chip_id) > + break; > + default: > + return -ENODEV; > + } > + > dev_info(&client->dev, "registering %s accelerometer; ID 0x%x\n", > match->compatible, data->chip_info->chip_id); > > @@ -1138,6 +1220,8 @@ static SIMPLE_DEV_PM_OPS(mma8452_pm_ops, > mma8452_suspend, mma8452_resume); > static const struct i2c_device_id mma8452_id[] = { > { "mma8452", mma8452 }, > { "mma8453", mma8453 }, > + { "mma8652", mma8652 }, > + { "mma8653", mma8653 }, > { } > }; > MODULE_DEVICE_TABLE(i2c, mma8452_id); >
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