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linux/drivers/iio/adc
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Fabrice Gasnier 3fb2e24ed7 iio: adc: stm32: add support for differential channels 
STM32H7 ADC channels can be configured either as single ended or
differential with 'st,adc-channels' or 'st,adc-diff-channels'
(positive and negative input pair: <vinp vinn>, ...).

Differential channels have different offset and scale, from spec:
raw value = (full_scale / 2) * (1 + (vinp - vinn) / vref).
Add offset attribute.

Differential channels are selected by DIFSEL register. Negative
inputs must be added to pre-selected channels as well (PCSEL).

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-12-02 10:40:28 +00:00
..
ad799x.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7266.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7291.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7298.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7476.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7766.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7791.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7793.c Merge 4.14-rc4 into staging-next 2017-10-09 09:02:35 +02:00
ad7887.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad7923.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ad_sigma_delta.c Merge 4.14-rc4 into staging-next 2017-10-09 09:02:35 +02:00
aspeed_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
at91_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
at91-sama5d2_adc.c iio: adc: at91-sama5d2_adc: ack DRDY irq in direct mode 2017-12-02 10:39:44 +00:00
axp20x_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
axp288_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
bcm_iproc_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
berlin2-adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
cc10001_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
cpcap-adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
da9150-gpadc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
dln2-adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
envelope-detector.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ep93xx_adc.c iio:stm32-lp-timer and ep93xx: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-09-26 09:38:57 +02:00
exynos_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
fsl-imx25-gcq.c iio: adc: imx25-gcq: Fix module autoload 2017-01-10 19:54:56 +00:00
hi8435.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
hx711.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
imx7d_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ina2xx-adc.c iio: adc: ina2xx: Allow setting Shunt Voltage PGA gain and Bus Voltage range 2017-12-02 10:40:20 +00:00
Kconfig iio: adc: at91-sama5d2_adc: add support for DMA 2017-12-02 10:39:43 +00:00
lp8788_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
lpc18xx_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
lpc32xx_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ltc2471.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ltc2485.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ltc2497.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
max1027.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
max1118.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
max1363.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
max9611.c iio:adc:max9611: Drop explicit setting of the i2c module owner. 2017-09-03 18:10:25 +01:00
max11100.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
mcp320x.c iio: adc: mcp320x: Add support for mcp3550/1/3 2017-10-09 21:01:36 +01:00
mcp3422.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
men_z188_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
meson_saradc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
mt6577_auxadc.c iio: adc: mt2712: Add compatible node for mt2712. 2017-09-24 16:45:38 +01:00
mxs-lradc-adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
nau7802.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
palmas_gpadc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
qcom-pm8xxx-xoadc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
qcom-spmi-iadc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
qcom-spmi-vadc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
qcom-vadc-common.c iio: adc/accel: Fix up module licenses 2017-12-02 10:39:43 +00:00
qcom-vadc-common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rcar-gyroadc.c iio: adc: rcar-gyroadc: Use of_device_get_match_data() helper 2017-10-09 20:50:49 +01:00
rockchip_saradc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
spear_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
stm32-adc-core.c iio: adc: stm32: add check on clock rate 2017-10-21 17:52:20 +01:00
stm32-adc-core.h iio: adc: stm32: add support for STM32H7 2017-06-11 15:07:29 +01:00
stm32-adc.c iio: adc: stm32: add support for differential channels 2017-12-02 10:40:28 +00:00
stx104.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
sun4i-gpadc-iio.c iio: adc: sun4i-gpadc: use of_device_get_match_data 2017-10-21 18:48:00 +01:00
ti_am335x_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-adc081c.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-adc084s021.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-adc108s102.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-adc128s052.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-adc161s626.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-adc0832.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-adc12138.c iio: adc: adc12138: make array ch_to_mux static, makes object code smaller 2017-10-21 17:56:09 +01:00
ti-ads1015.c Merge 4.14-rc4 into staging-next 2017-10-09 09:02:35 +02:00
ti-ads7950.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
ti-ads8688.c iio:adc:ti-ads8688: Drop manual setting of the driver owner field. 2017-09-03 18:10:25 +01:00
ti-tlc4541.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
twl4030-madc.c Merge 4.14-rc4 into staging-next 2017-10-09 09:02:35 +02:00
twl6030-gpadc.c Round one of new device support, features and cleanup for IIO in the 4.15 cycle. 2017-09-25 12:56:37 +02:00
vf610_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
viperboard_adc.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
xilinx-xadc-core.c iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.owner 2017-08-22 21:22:25 +01:00
xilinx-xadc-events.c iio: adc: xadc: Fix coding style violations 2017-08-12 13:10:30 +01:00
xilinx-xadc.h iio: adc: xadc: Fix coding style violations 2017-08-12 13:10:30 +01:00