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ea9103186d
linux/drivers/iio
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Lukas Wunner ea9103186d iio: adc: mcp320x: Speed up readout of single-channel ADCs 
Single-channel converters such as mcp3001, mcp3201, mcp3301 and the
upcoming mcp3550/1/3 lack a MOSI pin, so there's no need to call
mcp320x_channel_to_tx_data() for them.

Moreover, instead of calling spi_read() for these converters, which
generates an spi_message and spi_transfer on the stack on every readout,
it's more efficient to use the spi_message and spi_transfer[] included
in struct mcp320x (as we do for multi-channel ADCs), but initialize the
spi_message only with the receive transfer.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-09-24 12:34:54 +01:00
..
accel iio: accel: mma8452: improvements to handle multiple events 2017-09-13 17:49:58 +01:00
adc iio: adc: mcp320x: Speed up readout of single-channel ADCs 2017-09-24 12:34:54 +01:00
amplifiers iio:amplifiers:ad8366 drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:24:50 +01:00
buffer iio: buffer-dmaengine: Add missing header buffer_impl.h 2017-06-13 20:56:05 +01:00
chemical iio: chemical: ccs811: Add support for data ready trigger 2017-09-24 12:34:36 +01:00
common iio:common: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:25:33 +01:00
counter iio:counter:104-quad-8 drop assign iio_info.driver_module 2017-08-22 21:26:11 +01:00
dac drivers: misc: ti_dac7512: Remove duplicate driver 2017-09-13 17:49:57 +01:00
dummy iio:dummy: drop assignment of iio_info.driver_module 2017-08-22 21:27:45 +01:00
frequency iio:frequency: drop assign iio_info.driver_module 2017-08-22 21:28:20 +01:00
gyro iio:gyro: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:28:56 +01:00
health iio:health: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:29:44 +01:00
humidity iio:humidity: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:30:20 +01:00
imu iio: imu: inv_mpu6050: make arrays hz and d static 2017-09-03 18:10:32 +01:00
light iio: light: tcs3472: support out-of-threshold events 2017-09-03 18:10:29 +01:00
magnetometer iio:magnetometer: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:32:52 +01:00
multiplexer iio: multiplexer: add NULL check on devm_kzalloc() and devm_kmemdup() return values 2017-09-03 18:10:29 +01:00
orientation iio:orientation: drop assign iio_info.driver_module 2017-08-22 21:33:36 +01:00
potentiometer iio:potentiometer:max5487: Drop explicit setting of module owner 2017-09-03 18:10:27 +01:00
potentiostat iio:potentiostat:lmp91000 drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:34:48 +01:00
pressure iio: pressure: add support to LPS33HW and LPS35HW 2017-09-03 18:10:33 +01:00
proximity iio:proximity: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 22:14:51 +01:00
temperature iio:temperature: drop assignment of iio_info.driver_module 2017-08-22 22:14:52 +01:00
trigger iio:triggers: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 22:14:52 +01:00
iio_core_trigger.h
iio_core.h iio:core: timestamping clock selection support 2016-06-30 19:41:38 +01:00
industrialio-buffer.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
industrialio-configfs.c
industrialio-core.c iio: Use macro magic to avoid manual assign of driver_module 2017-08-22 20:03:14 +01:00
industrialio-event.c iio: iio_push_event(): Don't crash if the event interface is not registered 2016-09-10 16:40:44 +01:00
industrialio-sw-device.c
industrialio-sw-trigger.c
industrialio-trigger.c iio:trigger: Remove necessity to have a trig->ops structure. 2017-08-22 21:20:28 +01:00
industrialio-triggered-event.c
inkern.c First round of IIO new device support, features and cleanups for the 4.14 cycle. 2017-07-27 21:29:49 -07:00
Kconfig iio: multiplexer: new iio category and iio-mux driver 2017-06-03 19:29:26 +09:00
Makefile iio: multiplexer: new iio category and iio-mux driver 2017-06-03 19:29:26 +09:00