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bc1b453262
linux/drivers/iio/adc
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Eugen Hristev bc1b453262 iio: adc: at91: fix acking DRDY irq on simple conversions 
When doing simple conversions, the driver did not acknowledge the DRDY irq.
If this irq status is not acked, it will be left pending, and as soon as a
trigger is enabled, the irq handler will be called, it doesn't know why
this status has occurred because no channel is pending, and then it will go
int a irq loop and board will hang.
To avoid this situation, read the LCDR after a raw conversion is done.

Fixes: 0e589d5fb ("ARM: AT91: IIO: Add AT91 ADC driver.")
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-09-29 12:30:19 +01:00
..
ad799x.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +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 drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
ad7476.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +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: ad7791: implement IIO_CHAN_INFO_SAMP_FREQ 2018-03-17 20:47:21 +00:00
ad7793.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
ad7887.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
ad7923.c drivers: iio: Update MODULE AUTHOR email address 2018-08-19 17:23:39 +01:00
ad_sigma_delta.c iio: ad_sigma_delta: use unsigned long for timeout 2018-07-28 12:15:03 +01:00
aspeed_adc.c iio: adc: aspeed: Fix error handling path 2018-01-14 11:01:13 +00:00
at91_adc.c iio: adc: at91: fix acking DRDY irq on simple conversions 2018-09-29 12:30:19 +01:00
at91-sama5d2_adc.c iio: adc: at91-sama5d2_adc: fix up casting in at91_adc_read_info_raw() 2018-07-23 19:18:12 +01:00
axp20x_adc.c iio: adc: axp20x_adc: remove !! in favor of ternary condition 2018-02-24 12:19:45 +00:00
axp288_adc.c iio: Add macro to populate struct iio_map array 2017-12-02 13:28:21 +00:00
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: cpcap: fix incorrect validation 2017-12-02 11:15:13 +00:00
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: envelope-detector: switch to SPDX license identifier 2018-08-20 19:27:05 +01:00
ep93xx_adc.c iio: ep93xx: remove redundant return value check of platform_get_resource() 2018-01-30 18:33:20 +00:00
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 leak of device_node in mx25_gcq_setup_cfgs() 2018-09-22 10:19:51 +01:00
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: hx711: add delay until DOUT is ready 2018-07-15 09:36:38 +01:00
imx7d_adc.c iio: adc: fix spelling mistake: "Freeacale" -> "Freescale" 2018-05-22 18:17:57 +01:00
ina2xx-adc.c iio: adc: ina2xx: avoid kthread_stop() with stale task_struct 2018-07-07 17:06:39 +01:00
Kconfig iio: adc: add support for mcp3911 2018-08-19 20:02:48 +01:00
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 iio: adc: add support for mcp3911 2018-08-19 20:02:48 +01:00
max1027.c treewide: devm_kmalloc() -> devm_kmalloc_array() 2018-06-12 16:19:22 -07:00
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: max1363: merge calls to of_match_device and of_device_get_match_data 2018-07-08 10:35:17 +01:00
max9611.c iio: adc: max9611: explicitly cast gain_selectors 2018-08-19 17:48:04 +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
mcp3911.c iio: adc: add support for mcp3911 2018-08-19 20:02:48 +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: meson-saradc: simplify access to meson_sar_adc_param 2018-09-29 12:26:08 +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: Convert to using %pOFn instead of device_node.name 2018-09-02 18:54:31 +01:00
qcom-spmi-adc5.c iio: adc: qcom-spmi-adc5: Verify channel numbers from DT 2018-09-02 18:52:04 +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: Add QCOM SPMI PMIC5 ADC driver 2018-08-18 18:11:43 +01:00
qcom-vadc-common.h iio: adc: Add QCOM SPMI PMIC5 ADC driver 2018-08-18 18:11:43 +01:00
rcar-gyroadc.c iio: Convert to using %pOFn instead of device_node.name 2018-09-02 18:54:31 +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
sc27xx_adc.c iio: adc: sc27xx: Add ADC scale calibration 2018-09-02 09:52:55 +01:00
sd_adc_modulator.c IIO: ADC: add sigma delta modulator support 2018-01-10 10:30:09 +00:00
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-adc: add support for STM32MP1 2018-05-07 18:21:00 +01:00
stm32-adc-core.h iio: stm32: Adopt SPDX identifier 2018-01-08 16:03:41 +01:00
stm32-adc.c iio: adc: stm32-adc: add support for STM32MP1 2018-05-07 18:21:00 +01:00
stm32-dfsdm-adc.c Staging/IIO patches for 4.18-rc1 2018-06-09 10:32:39 -07:00
stm32-dfsdm-core.c iio: adc: stm32-dfsdm: Add support for stm32mp1 2018-05-12 10:22:17 +01:00
stm32-dfsdm.h IIO: ADC: add stm32 DFSDM core support 2018-01-10 10:30:11 +00:00
stx104.c iio: stx104: Implement get_multiple callback 2018-03-17 16:21:27 +00:00
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 Drivers:iio:adc:ti_am335x_adc remove comparison to bool 2018-01-08 16:03:43 +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: add SPDX identifier for various drivers 2018-02-18 11:55:19 +00:00
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: ti-ads7950: use SPI_CS_WORD to reduce CPU usage 2018-09-22 10:09:47 +01:00
ti-ads8688.c iio: adc: ti-ads8688: add trigger and buffer support 2018-05-12 12:00:30 +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 treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
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: xilinx: Move request_irq before enabling interrupts 2018-07-29 13:30:35 +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: xilinx: Remove platform_get_irq from xadc_remove function 2018-07-29 12:52:21 +01:00