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| author | Zubair Lutfullah <zubair.lutfullah@gmail.com> | 2013-09-19 06:24:00 (GMT) |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2013-09-21 18:23:47 (GMT) |
| commit | ca9a563805f7ae821e3303b1bdbc65d3a3c783ff (patch) | |
| tree | 7453f8ace4421b3d23b53c5bf8c222e0a5ffbbaf /drivers/iio/adc/Kconfig | |
| parent | 0f6fc7d56fe56aad5410fdaa7cebbb918580a33c (diff) | |
| download | linux-ca9a563805f7ae821e3303b1bdbc65d3a3c783ff.tar.xz | |
iio: ti_am335x_adc: Add continuous sampling support
Previously the driver had only one-shot reading functionality.
This patch adds continuous sampling support to the driver.
Continuous sampling starts when buffer is enabled.
HW IRQ wakes worker thread that pushes samples to userspace.
Sampling stops when buffer is disabled by userspace.
Patil Rachna (TI) laid the ground work for ADC HW register access.
Russ Dill (TI) fixed bugs in the driver relevant to FIFOs and IRQs.
I fixed channel scanning so multiple ADC channels can be read
simultaneously and pushed to userspace.
Restructured the driver to fit IIO ABI.
And added INDIO_BUFFER_HARDWARE mode.
Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/Kconfig')
| -rw-r--r-- | drivers/iio/adc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 0cf5c61..8b88518 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -177,6 +177,7 @@ config TI_ADC081C config TI_AM335X_ADC tristate "TI's AM335X ADC driver" depends on MFD_TI_AM335X_TSCADC + select IIO_KFIFO_BUF help Say yes here to build support for Texas Instruments ADC driver which is also a MFD client. |