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kernel_samsung_a53x/drivers/iio/adc
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Marcelo Schmitt 2a82da50b8 iio: adc: ad7091r: Enable internal vref if external vref is not supplied 
[ Upstream commit e71c5c89bcb165a02df35325aa13d1ee40112401 ]

The ADC needs a voltage reference to work correctly.
Users can provide an external voltage reference or use the chip internal
reference to operate the ADC.
The availability of an in chip reference for the ADC saves the user from
having to supply an external voltage reference, which makes the external
reference an optional property as described in the device tree
documentation.
Though, to use the internal reference, it must be enabled by writing to
the configuration register.
Enable AD7091R internal voltage reference if no external vref is supplied.

Fixes: 260442cc5be4 ("iio: adc: ad7091r5: Add scale and external VREF support")
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Link: https://lore.kernel.org/r/b865033fa6a4fc4bf2b4a98ec51a6144e0f64f77.1703013352.git.marcelo.schmitt1@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:12:55 +01:00
..
ab8500-gpadc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad799x.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad7091r-base.c iio: adc: ad7091r: Enable internal vref if external vref is not supplied 2024-11-18 12:12:55 +01:00
ad7091r-base.h iio: adc: ad7091r: Enable internal vref if external vref is not supplied 2024-11-18 12:12:55 +01:00
ad7091r5.c iio: adc: ad7091r: Allow users to configure device events 2024-11-18 12:12:55 +01:00
ad7124.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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ad7606.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad7606_par.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad7606_spi.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad7766.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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ad7887.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad7923.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad7949.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ad9467.c iio: adc: ad9467: fix scale setting 2024-11-18 12:12:49 +01:00
ad_sigma_delta.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
adi-axi-adc.c iio: adc: ad9467: fix scale setting 2024-11-18 12:12:49 +01:00
aspeed_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
at91-sama5d2_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
at91_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
axp20x_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
axp288_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bcm_iproc_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
berlin2-adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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cpcap-adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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envelope-detector.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ep93xx_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
exynos_adc.c iio: exynos-adc: request second interupt only when touchscreen mode is used 2024-11-18 10:58:30 +01:00
fsl-imx25-gcq.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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ina2xx-adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ingenic-adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
intel_mrfld_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lp8788_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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mcp3911.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
men_z188_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
meson_saradc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mp2629_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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palmas_gpadc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
qcom-pm8xxx-xoadc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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rcar-gyroadc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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rockchip_saradc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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sc27xx_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sd_adc_modulator.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
spear_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stm32-adc-core.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stm32-adc-core.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stm32-adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stm32-dfsdm-adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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stm32-dfsdm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmpe-adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stx104.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sun4i-gpadc-iio.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ti-adc081c.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
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ti-tlc4541.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ti_am335x_adc.c iio: adc: ti_am335x_adc: Fix return value check of tiadc_request_dma() 2024-11-18 12:12:00 +01:00
twl4030-madc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
twl6030-gpadc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vf610_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
viperboard_adc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xilinx-xadc-core.c iio: adc: xilinx-xadc: Don't clobber preset voltage/temperature thresholds 2024-11-18 10:58:32 +01:00
xilinx-xadc-events.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xilinx-xadc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00