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8a09054f3e
linux/drivers/iio/adc
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Ahmad Fatoum 8a09054f3e iio: adc: stm32-adc: enable timestamping for non-DMA usage 
For non-DMA usage, we have an easy way to associate a timestamp with a
sample: iio_pollfunc_store_time stores a timestamp in the primary
trigger IRQ handler and stm32_adc_trigger_handler runs in the IRQ thread
to push out the buffer along with the timestamp.

For this to work, the driver needs to register an IIO_TIMESTAMP channel.
Do this.

For DMA, it's not as easy, because we don't push the buffers out of
stm32_adc_trigger, but out of stm32_adc_dma_buffer_done, which runs in
a tasklet scheduled after a DMA completion.

Preferably, the DMA controller would copy us the timestamp into that buffer
as well. Until this is implemented, restrict timestamping support to
only PIO. For low-frequency sampling, PIO is probably good enough.

Cc: Holger Assmann <has@pengutronix.de>
Acked-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.kernel.org/r/20210125194824.30549-1-a.fatoum@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-03-11 20:46:57 +00:00
..
ab8500-gpadc.c iio: adc: ab8500-gpadc: Support non-hw-conversion 2021-01-09 21:52:46 +00:00
ad799x.c iio: adc: ad799x: Demote seemingly unintentional kerneldoc header 2020-07-20 09:03:20 +01:00
ad7091r5.c iio: adc: ad7091r5: Add scale and external VREF support 2019-11-16 17:06:10 +00:00
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
ad7124.c iio: adc: ad7124: Fix typo in device name 2020-09-20 18:26:44 +01:00
ad7192.c iio: adc: ad7192: move ad7192_of_match table closer to the end of the file 2020-07-20 09:03:37 +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: remove unneeded spi_set_drvdata() 2020-11-21 15:15:28 +00:00
ad7298.c iio: adc: ad7298: check regulator for null in ad7298_get_ref_voltage() 2020-12-03 19:32:19 +00:00
ad7476.c iio: adc: ad7476: Add LTC2314-14 support 2021-01-09 21:52:47 +00:00
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
ad7606.c iio: Move attach/detach of the poll func to the core 2020-06-20 17:34:44 +01:00
ad7606.h iio: adc: ad7606: Add support for AD7606B ADC 2019-08-25 16:11:00 +01:00
ad7766.c iio: Move attach/detach of the poll func to the core 2020-06-20 17:34:44 +01:00
ad7768-1.c iio: adc: ad7768-1: Add channel labels. 2020-11-08 16:07:39 +00:00
ad7780.c Linux 5.8-rc6 2020-07-20 09:37:31 +02:00
ad7791.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
ad7793.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
ad7887.c iio: adc: ad7887: convert probe to device-managed functions 2020-11-14 16:44:59 +00:00
ad7923.c iio: adc: ad7923: Demote obvious misuse of kerneldoc to standard comment blocks 2020-07-20 09:02:49 +01:00
ad7949.c iio: adc: ad7949: Fix misspelling issue 2020-09-21 18:41:36 +01:00
ad9467.c iio: adc: ad9467: add support for AD9265 high-speed ADC 2020-09-29 17:27:07 +01:00
ad_sigma_delta.c iio: ad_sigma_delta: Don't put SPI transfer buffer on the stack 2020-12-03 19:32:40 +00:00
adi-axi-adc.c iio: adc: adi-axi-adc: Use kobj_to_dev() instead of container_of() 2020-09-03 19:40:47 +01:00
aspeed_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
at91_adc.c iio: adc: at91_adc: merge at91_adc_probe_dt back in at91_adc_probe 2020-12-03 19:40:24 +00:00
at91-sama5d2_adc.c iio:trigger: rename try_reenable() to reenable() plus return void 2020-12-03 19:40:26 +00:00
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: Fix fall-through warnings for Clang 2020-11-21 15:04:05 +00:00
da9150-gpadc.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
dln2-adc.c iio: Move attach/detach of the poll func to the core 2020-06-20 17:34:44 +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: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
exynos_adc.c iio: adc: exynos: do not rely on 'users' counter in ISR 2020-10-10 17:49:52 +01:00
fsl-imx25-gcq.c iio: adc: fsl-imx25-gcq: Replace indio_dev->mlock with own device lock 2020-09-21 18:41:35 +01:00
hi8435.c iio:adc:hi8435: Drop of_match_ptr protection. 2020-07-07 20:24:08 +01:00
hx711.c iio: remove left-over parent assignments 2020-06-14 11:50:04 +01:00
imx7d_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
ina2xx-adc.c iio:adc:ina2xx Fix timestamp alignment issue. 2020-08-31 10:47:52 +01:00
ingenic-adc.c First set of new device support, features and cleanups for IIO in the 5.11 cycle 2020-11-24 08:30:08 +01:00
intel_mrfld_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
Kconfig iio:adc:stm32-adc: Add HAS_IOMEM dependency 2021-03-11 20:46:56 +00:00
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: mt6360: Add ADC driver for MT6360 2020-11-08 16:20:18 +00:00
max1027.c iio:adc:max1027: drop of_match_ptr and CONFIG_OF protections 2020-07-07 20:24:08 +01:00
max1118.c iio:adc:max1118 Fix alignment of timestamp and data leak issues 2020-08-31 10:47:52 +01:00
max1241.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +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: Drop of_match_ptr protection / add mod_devicetable.h include 2020-07-07 20:24:09 +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: remove unneeded break 2020-11-01 15:31:56 +00:00
mp2629_adc.c iio: adc: mp2629: Add support for mp2629 ADC driver 2020-05-26 10:41:47 +01:00
mt6360-adc.c iio: adc: mt6360: Add ADC driver for MT6360 2020-11-08 16:20:18 +00:00
mt6577_auxadc.c iio: adc: mediatek: fix unset field 2020-11-01 15:22:46 +00:00
mxs-lradc-adc.c iio: Move attach/detach of the poll func to the core 2020-06-20 17:34:44 +01:00
nau7802.c iio: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
npcm_adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
palmas_gpadc.c iio: adc: palmas_gpadc: use module_platform_driver to simplify the code 2020-09-16 19:09:51 +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 iio: adc: move qcom-vadc-common.h to include dir 2021-01-16 18:20:56 +00:00
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: gyroadc: fix leak of device node iterator 2020-09-29 17:50:51 +01:00
rn5t618-adc.c iio: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
rockchip_saradc.c iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume 2020-12-03 19:40:31 +00:00
sc27xx_adc.c iio: sc27xx_adc: Use DIV_ROUND_CLOSEST() instead of open-coding it 2021-01-09 21:52:46 +00:00
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: remove explicit IIO device parent assignment 2020-06-14 11:49:59 +01:00
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: enable timestamping for non-DMA usage 2021-03-11 20:46:57 +00:00
stm32-dfsdm-adc.c sound updates for 5.10 2020-10-15 11:07:44 -07:00
stm32-dfsdm-core.c iio: adc: stm32-dfsdm: Remove redundant null check before clk_disable_unprepare 2021-01-22 08:52:07 +00:00
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: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
ti_am335x_adc.c iio: adc: ti_am335x_adc: remove omitted iio_kfifo_free() 2021-01-14 20:56:54 +00:00
ti-adc081c.c Merge 5.9-rc5 into staging-next 2020-09-14 06:57:52 +02:00
ti-adc084s021.c iio:adc:ti-adc084s021 Tidy up endian types 2020-12-03 19:40:26 +00:00
ti-adc108s102.c iio:adc:ti-adc108s102: Drop CONFIG_OF and of_match_ptr protections 2020-09-03 19:40:45 +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: Drop of_match_ptr protection. 2020-07-07 20:24:10 +01:00
ti-adc0832.c iio:adc:ti-adc0832 Fix alignment issue with timestamp 2020-09-21 20:01:51 +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:ti-ads124s08: Fix alignment and data leak issues. 2020-12-03 19:40:29 +00:00
ti-ads1015.c iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set 2020-08-22 11:38:44 +01:00
ti-ads7950.c Replace HTTP links with HTTPS ones: drivers/iio 2020-07-13 15:05:59 +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: Remove superfluous of_node assignments 2020-06-14 14:20:08 +01:00
ti-tlc4541.c Replace HTTP links with HTTPS ones: drivers/iio 2020-07-13 15:05:59 +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: Move attach/detach of the poll func to the core 2020-06-20 17:34:44 +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: adc: xilinx: use more devres helpers and remove remove() 2021-01-09 14:25:26 +00:00
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