On 22/10/15 05:34, Marc Andre wrote: > The Linear Technology LTC2606, LTC2607, LTC2609, LTC2616, LTC2617, > LTC2619, LTC2626, LTC2627 and LTC2629 devices are very similar > to the AD5064 device. > > This patch adds support for those devices. > > Datasheet for LTC devices: > LTC2606, LTC2616, LTC2626: http://www.linear.com/docs/6398 > LTC2607, LTC2617, LTC2627: http://www.linear.com/docs/8977 > LTC2709, LTC2619, LTC2629: http://www.linear.com/docs/8477 > > Signed-off-by: Marc Andre <marc.andre@xxxxxxxxxx> > Acked-by: Lars-Peter Clausen <lars@xxxxxxxxxx> Queued up for when the prerequisits make it in. > --- > Documentation/ABI/testing/sysfs-bus-iio | 1 + > drivers/iio/dac/ad5064.c | 112 +++++++++++++++++++++++++++++++- > 2 files changed, 112 insertions(+), 1 deletion(-) > > diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio > index 42d360f..3e8b778 100644 > --- a/Documentation/ABI/testing/sysfs-bus-iio > +++ b/Documentation/ABI/testing/sysfs-bus-iio > @@ -496,6 +496,7 @@ Description: > 1kohm_to_gnd: connected to ground via an 1kOhm resistor, > 6kohm_to_gnd: connected to ground via a 6kOhm resistor, > 20kohm_to_gnd: connected to ground via a 20kOhm resistor, > + 90kohm_to_gnd: connected to ground via a 90kOhm resistor, > 100kohm_to_gnd: connected to ground via an 100kOhm resistor, > 500kohm_to_gnd: connected to ground via a 500kOhm resistor, > three_state: left floating. > diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c > index 3bb0312..1b89625 100644 > --- a/drivers/iio/dac/ad5064.c > +++ b/drivers/iio/dac/ad5064.c > @@ -1,6 +1,8 @@ > /* > * AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5629R, > - * AD5648, AD5666, AD5668, AD5669R Digital to analog converters driver > + * AD5648, AD5666, AD5668, AD5669R, LTC2606, LTC2607, LTC2609, LTC2616, > + * LTC2617, LTC2619, LTC2626, LTC2627, LTC2629 Digital to analog converters > + * driver > * > * Copyright 2011 Analog Devices Inc. > * > @@ -126,6 +128,15 @@ enum ad5064_type { > ID_AD5668_2, > ID_AD5669_1, > ID_AD5669_2, > + ID_LTC2606, > + ID_LTC2607, > + ID_LTC2609, > + ID_LTC2616, > + ID_LTC2617, > + ID_LTC2619, > + ID_LTC2626, > + ID_LTC2627, > + ID_LTC2629, > }; > > static int ad5064_write(struct ad5064_state *st, unsigned int cmd, > @@ -164,6 +175,10 @@ static const char * const ad5064_powerdown_modes[] = { > "three_state", > }; > > +static const char * const ltc2617_powerdown_modes[] = { > + "90kohm_to_gnd", > +}; > + > static int ad5064_get_powerdown_mode(struct iio_dev *indio_dev, > const struct iio_chan_spec *chan) > { > @@ -194,6 +209,13 @@ static const struct iio_enum ad5064_powerdown_mode_enum = { > .set = ad5064_set_powerdown_mode, > }; > > +static const struct iio_enum ltc2617_powerdown_mode_enum = { > + .items = ltc2617_powerdown_modes, > + .num_items = ARRAY_SIZE(ltc2617_powerdown_modes), > + .get = ad5064_get_powerdown_mode, > + .set = ad5064_set_powerdown_mode, > +}; > + > static ssize_t ad5064_read_dac_powerdown(struct iio_dev *indio_dev, > uintptr_t private, const struct iio_chan_spec *chan, char *buf) > { > @@ -304,6 +326,18 @@ static const struct iio_chan_spec_ext_info ad5064_ext_info[] = { > { }, > }; > > +static const struct iio_chan_spec_ext_info ltc2617_ext_info[] = { > + { > + .name = "powerdown", > + .read = ad5064_read_dac_powerdown, > + .write = ad5064_write_dac_powerdown, > + .shared = IIO_SEPARATE, > + }, > + IIO_ENUM("powerdown_mode", IIO_SEPARATE, <c2617_powerdown_mode_enum), > + IIO_ENUM_AVAILABLE("powerdown_mode", <c2617_powerdown_mode_enum), > + { }, > +}; > + > #define AD5064_CHANNEL(chan, addr, bits, _shift, _ext_info) { \ > .type = IIO_VOLTAGE, \ > .indexed = 1, \ > @@ -350,6 +384,10 @@ static DECLARE_AD5065_CHANNELS(ad5065_channels, 16, 4, ad5064_ext_info); > static DECLARE_AD5064_CHANNELS(ad5629_channels, 12, 4, ad5064_ext_info); > static DECLARE_AD5064_CHANNELS(ad5669_channels, 16, 0, ad5064_ext_info); > > +static DECLARE_AD5064_CHANNELS(ltc2607_channels, 16, 0, ltc2617_ext_info); > +static DECLARE_AD5064_CHANNELS(ltc2617_channels, 14, 2, ltc2617_ext_info); > +static DECLARE_AD5064_CHANNELS(ltc2627_channels, 12, 4, ltc2617_ext_info); > + > static const struct ad5064_chip_info ad5064_chip_info_tbl[] = { > [ID_AD5024] = { > .shared_vref = false, > @@ -458,6 +496,69 @@ static const struct ad5064_chip_info ad5064_chip_info_tbl[] = { > .channels = ad5669_channels, > .num_channels = 8, > }, > + [ID_LTC2606] = { > + .shared_vref = true, > + .internal_vref = 0, > + .channels = ltc2607_channels, > + .num_channels = 1, > + .powerdown_ltc = true, > + }, > + [ID_LTC2607] = { > + .shared_vref = true, > + .internal_vref = 0, > + .channels = ltc2607_channels, > + .num_channels = 2, > + .powerdown_ltc = true, > + }, > + [ID_LTC2609] = { > + .shared_vref = false, > + .internal_vref = 0, > + .channels = ltc2607_channels, > + .num_channels = 4, > + .powerdown_ltc = true, > + }, > + [ID_LTC2616] = { > + .shared_vref = true, > + .internal_vref = 0, > + .channels = ltc2617_channels, > + .num_channels = 1, > + .powerdown_ltc = true, > + }, > + [ID_LTC2617] = { > + .shared_vref = true, > + .internal_vref = 0, > + .channels = ltc2617_channels, > + .num_channels = 2, > + .powerdown_ltc = true, > + }, > + [ID_LTC2619] = { > + .shared_vref = false, > + .internal_vref = 0, > + .channels = ltc2617_channels, > + .num_channels = 4, > + .powerdown_ltc = true, > + }, > + [ID_LTC2626] = { > + .shared_vref = true, > + .internal_vref = 0, > + .channels = ltc2627_channels, > + .num_channels = 1, > + .powerdown_ltc = true, > + }, > + [ID_LTC2627] = { > + .shared_vref = true, > + .internal_vref = 0, > + .channels = ltc2627_channels, > + .num_channels = 2, > + .powerdown_ltc = true, > + }, > + [ID_LTC2629] = { > + .shared_vref = false, > + .internal_vref = 0, > + .channels = ltc2627_channels, > + .num_channels = 4, > + .powerdown_ltc = true, > + }, > }; > > static inline unsigned int ad5064_num_vref(struct ad5064_state *st) > @@ -669,6 +770,15 @@ static const struct i2c_device_id ad5064_i2c_ids[] = { > {"ad5669-1", ID_AD5669_1}, > {"ad5669-2", ID_AD5669_2}, > {"ad5669-3", ID_AD5669_2}, /* similar enough to ad5669-2 */ > + {"ltc2606", ID_LTC2606}, > + {"ltc2607", ID_LTC2607}, > + {"ltc2609", ID_LTC2609}, > + {"ltc2616", ID_LTC2616}, > + {"ltc2617", ID_LTC2617}, > + {"ltc2619", ID_LTC2619}, > + {"ltc2626", ID_LTC2626}, > + {"ltc2627", ID_LTC2627}, > + {"ltc2629", ID_LTC2629}, > {} > }; > MODULE_DEVICE_TABLE(i2c, ad5064_i2c_ids); > -- 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
