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linux/drivers/iio/adc
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Miquel Raynal 8bed0166c6 iio: adc: ti_am335x_adc: Wait the idle state to avoid stalls 
At least on a am4372, a simple:
$ cat /sys/bus/iio/devices/iio\:deviceX/in_voltage*_raw
can stall forever. It seems that it comes from the fact that the
internal state machine does not have enough time to return to its idle
state in this situation before receiving another request, leading to an
internal stall.

Add a tiadc_wait_idle() helper to ensure no new conversion is requested
while the FSM is still busy.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211015081506.933180-39-miquel.raynal@bootlin.com
2021-10-21 09:23:54 +01:00
..
ab8500-gpadc.c First set of IIO and counter fixes for the 5.12 cycle 2021-03-15 16:34:39 +01:00
ad799x.c iio:adc: Drop false comment about lack of timestamp control 2021-04-07 08:36:38 +01:00
ad7091r-base.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
ad7091r-base.h iio: adc: ad7091r5: Add scale and external VREF support 2019-11-16 17:06:10 +00:00
ad7091r5.c iio: adc: ad7091r5: Add scale and external VREF support 2019-11-16 17:06:10 +00:00
ad7124.c iio: adc: ad7124: Use devm_ managed calls for all of probe() + drop remove() 2021-06-13 17:00:16 +01:00
ad7192.c iio: adc: ad7192: convert to device-managed functions 2021-06-13 17:00:16 +01:00
ad7266.c iio: Move attach/detach of the poll func to the core 2020-06-20 17:34:44 +01:00
ad7291.c iio: adc: ad7291: convert to device tree 2020-09-29 17:27:05 +01:00
ad7292.c iio: adc: ad7292: Modify the bool initialization assignment 2021-03-25 19:13:52 +00:00
ad7298.c iio: adc: ad7298: Enable on Intel Galileo Gen 1 2021-05-17 13:49:05 +01:00
ad7476.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ad7606.c iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
ad7606.h iio: adc: ad7606: Add support for AD7606B ADC 2019-08-25 16:11:00 +01:00
ad7606_par.c iio: Remove dev_err() usage after platform_get_irq() 2019-08-05 15:59:14 +01:00
ad7606_spi.c iio: adc: ad7606: Add support for AD7606B ADC 2019-08-25 16:11:00 +01:00
ad7766.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ad7768-1.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ad7780.c iio: adc: ad7780: convert to device-managed functions 2021-06-13 17:00:16 +01:00
ad7791.c iio: adc: ad7791: convert to device-managed functions 2021-06-13 17:00:16 +01:00
ad7793.c iio: adc: ad7793: convert to device-managed functions 2021-06-13 17:00:16 +01:00
ad7887.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ad7923.c iio: adc: ad7923: Fix undersized rx buffer. 2021-05-22 08:32:36 +01:00
ad7949.c iio: adc: ad7949: fix wrong ADC result due to incorrect bit mask 2021-02-12 19:04:32 +00:00
ad9467.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ad_sigma_delta.c iio: adc: ad_sigma_delta: remove ad_sd_{setup,cleanup}_buffer_and_trigger() 2021-06-13 17:00:17 +01:00
adi-axi-adc.c iio: adc: adi-axi-adc: simplify devm_adi_axi_adc_conv_register() 2021-05-17 13:49:06 +01:00
aspeed_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
at91-sama5d2_adc.c iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp() 2021-06-14 11:42:41 +01:00
at91_adc.c iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
axp20x_adc.c iio:adc:axp20x: Convert from OF to generic fw / device properties 2020-09-03 19:40:46 +01:00
axp288_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
bcm_iproc_adc.c iio:adc:bcm_iproc: Drop of_match_ptr protection and switch to mod_devicetable.h 2020-09-03 19:40:45 +01:00
berlin2-adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
cc10001_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
cpcap-adc.c iio: adc: cpcap-adc: kernel-doc fix - that should be _ in structure name 2021-03-25 19:13:51 +00:00
da9150-gpadc.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
dln2-adc.c iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
envelope-detector.c iio: adc: envelope-detector: Simplify with dev_err_probe() 2020-09-03 19:40:49 +01:00
ep93xx_adc.c iio: ep93xx: Prepare clock before using it 2021-08-08 14:57:19 +01:00
exynos_adc.c iio: adc: exynos: drop unneeded variable assignment 2021-05-17 13:49:04 +01:00
fsl-imx25-gcq.c iio: adc: fsl-imx25-gcq: adjust irq check to match docs and simplify code 2021-08-08 14:52:23 +01:00
hi8435.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
hx711.c iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp() 2021-06-14 11:42:41 +01:00
imx7d_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
ina2xx-adc.c iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
ingenic-adc.c iio/adc: ingenic: add JZ4760B support to the sadc driver 2021-07-31 18:14:53 +01:00
intel_mrfld_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
Kconfig iio: adc: Add driver for Renesas RZ/G2L A/D converter 2021-08-15 17:03:13 +01:00
lp8788_adc.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
lpc18xx_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
lpc32xx_adc.c iio:adc:lpc32xx: Drop of_match_ptr protection 2020-07-07 20:24:08 +01:00
ltc2471.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
ltc2485.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
ltc2496.c iio:adc:ltc2496: Drop of_match_ptr and use mod_devicetable.h 2020-07-07 20:24:08 +01:00
ltc2497-core.c iio: adc: ltc2497: Simplify with dev_err_probe() 2020-09-03 19:40:49 +01:00
ltc2497.c iio:adc:ltc2497 drop of_match_ptr protection 2020-07-07 20:24:09 +01:00
ltc2497.h iio: adc: ltc2497: split protocol independent part in a separate module 2019-12-15 12:15:19 +00:00
Makefile iio: adc: Add driver for Renesas RZ/G2L A/D converter 2021-08-15 17:03:13 +01:00
max1027.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
max1118.c iio: adc: max1118: Avoid jumping back and forth between spi and iio structures 2021-06-03 18:24:14 +01:00
max1241.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
max1363.c iio: adc: max1363: Fix kerneldoc attribute formatting for 'lock' 2020-07-20 09:03:27 +01:00
max9611.c iio: adc: max9611: Demote obvious misuse of kerneldoc to standard comment blocks 2020-07-20 09:03:27 +01:00
max11100.c iio: adc: max11100: Use devm_ functions for rest of probe() 2021-06-03 18:24:14 +01:00
mcp320x.c Replace HTTP links with HTTPS ones: drivers/iio 2020-07-13 15:05:59 +01:00
mcp3422.c iio: adc: mcp3422: fix locking on error path 2020-09-01 16:08:07 +02:00
mcp3911.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
men_z188_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
meson_saradc.c iio: adc: meson-saradc: Fix indentation of arguments after a line-break 2021-07-25 15:57:31 +01:00
mp2629_adc.c iio: adc: mp2629: Drop duplicate setting iio_dev.dev.parent 2021-05-17 13:49:12 +01:00
mt6360-adc.c iio: adc: mt6360: Drop duplicate setting of iio_dev.dev.parent 2021-05-17 13:49:12 +01:00
mt6577_auxadc.c iio: adc: mediatek: fix unset field 2020-11-01 15:22:46 +00:00
mxs-lradc-adc.c iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp() 2021-06-14 11:42:41 +01:00
nau7802.c iio:adc:nau7802: Use IRQF_NO_AUTOEN instead of request then disable 2021-04-07 08:36:39 +01:00
npcm_adc.c iio: adc: npcm_adc: Replace indio_dev->mlock with own device lock 2021-03-25 19:13:49 +00:00
palmas_gpadc.c iio: adc: Fix incorrect exit of for-loop 2021-07-31 14:46:05 +01:00
qcom-pm8xxx-xoadc.c iio: adc: move qcom-vadc-common.h to include dir 2021-01-16 18:20:56 +00:00
qcom-spmi-adc5.c iio: adc: qcom-spmi-adc5: use of_device_get_match_data 2021-01-16 18:23:36 +00:00
qcom-spmi-iadc.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
qcom-spmi-vadc.c First set of IIO and counter fixes for the 5.12 cycle 2021-03-15 16:34:39 +01:00
qcom-vadc-common.c thermal: qcom: add support for adc-tm5 PMIC thermal monitor 2021-02-15 21:28:53 +01:00
rcar-gyroadc.c iio: adc: rcar-gyroadc: Use pm_runtime_resume_and_get() and check in probe() 2021-05-17 13:54:26 +01:00
rn5t618-adc.c iio: adc: rn5t618: Add iio map 2021-08-13 18:38:17 +02:00
rockchip_saradc.c iio: adc: rockchip_saradc: add voltage notifier so get referenced voltage once at probe 2021-08-15 16:58:37 +01:00
rzg2l_adc.c iio: adc: Add driver for Renesas RZ/G2L A/D converter 2021-08-15 17:03:13 +01:00
sc27xx_adc.c iio: adc: Add missing MODULE_DEVICE_TABLE 2021-05-17 13:54:24 +01:00
sd_adc_modulator.c iio:adc:sd_adc_modulator: Drop of_match_ptr and tweak includes 2020-07-07 20:24:09 +01:00
spear_adc.c iio: adc: spear_adc: Replace indio_dev->mlock with own device lock 2021-03-25 19:13:49 +00:00
stm32-adc-core.c iio: adc: stm32-adc: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare 2021-01-09 21:52:46 +00:00
stm32-adc-core.h iio: adc: stm32-adc: Add check on overrun interrupt 2019-12-15 11:42:17 +00:00
stm32-adc.c iio: adc: stm32-adc: Use pm_runtime_resume_and_get() to replace open coding. 2021-05-17 13:54:26 +01:00
stm32-dfsdm-adc.c iio: adc: stm32-dfsdm: drop __func__ while using Dynamic debug 2021-04-07 08:36:38 +01:00
stm32-dfsdm-core.c iio: adc: stm32-dfsdm: Use pm_runtime_resume_and_get() to replace open coding. 2021-05-17 13:54:26 +01:00
stm32-dfsdm.h ASoC: stm32: dfsdm: add actual resolution trace 2020-10-08 20:44:41 +01:00
stmpe-adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
stx104.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
sun4i-gpadc-iio.c iio:adc:sun4i-gpadc: Use new IRQF_NO_AUTOEN flag instead of request then disable 2021-04-07 08:36:39 +01:00
ti-adc081c.c iio: adc: ti-adc081c: Use devm managed functions for all of probe() 2021-06-03 18:24:14 +01:00
ti-adc084s021.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ti-adc108s102.c iio: adc: ti-adc108s102: Use devm managed functions for all of probe() 2021-06-03 18:24:14 +01:00
ti-adc128s052.c iio:adc:ti-adc128s052: drop of_match_ptr protection 2020-09-03 19:40:45 +01:00
ti-adc161s626.c iio: adc: ti-adc161s626: Use devm managed functions for all of probe. 2021-06-03 18:24:14 +01:00
ti-adc0832.c iio: adc: ti-adc0832: Use devm managed functions for all of probe() 2021-06-03 18:24:14 +01:00
ti-adc12138.c iio:adc:ti-adc12138 Fix alignment issue with timestamp 2020-09-21 20:01:51 +01:00
ti-ads124s08.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ti-ads131e08.c iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
ti-ads1015.c iio: adc: ads1015: Balance runtime pm + pm_runtime_resume_and_get() 2021-06-16 14:53:13 +01:00
ti-ads7950.c iio: adc: ti-ads7950: Ensure CS is deasserted after reading channels 2021-07-17 18:36:53 +01:00
ti-ads8344.c Replace HTTP links with HTTPS ones: drivers/iio 2020-07-13 15:05:59 +01:00
ti-ads8688.c iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() 2021-06-14 11:42:41 +01:00
ti-tlc4541.c Replace HTTP links with HTTPS ones: drivers/iio 2020-07-13 15:05:59 +01:00
ti-tsc2046.c iio: adc: remove unused private data assigned with spi_set_drvdata() 2021-06-13 17:00:17 +01:00
ti_am335x_adc.c iio: adc: ti_am335x_adc: Wait the idle state to avoid stalls 2021-10-21 09:23:54 +01:00
twl4030-madc.c iio: adc: twl4030-madc: Fix misnamed struct attribute 2020-07-20 09:03:14 +01:00
twl6030-gpadc.c iio: adc: twl6030-gpadc: Fix some misdocumentation and formatting issues 2020-07-20 09:03:15 +01:00
vf610_adc.c iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp() 2021-05-17 13:54:29 +01:00
viperboard_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
xilinx-xadc-core.c iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
xilinx-xadc-events.c iio: xilinx-xadc: Add basic support for Ultrascale System Monitor 2021-01-09 14:25:24 +00:00
xilinx-xadc.h iio: xilinx-xadc: Add basic support for Ultrascale System Monitor 2021-01-09 14:25:24 +00:00