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path: root/drivers/iio/adc
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2022-08-16iio: adc: mcp3911: make use of the sign bitMarcus Folkesson1-0/+2
The device supports negative values as well. Fixes: 3a89b289df5d ("iio: adc: add support for mcp3911") Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220722130726.7627-2-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: xilinx-xadc: Benefit from devm_clk_get_enabled() to simplifyUwe Kleine-König1-17/+1
Make use of devm_clk_get_enabled() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-9-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: xilinx-ams: Benefit from devm_clk_get_enabled() to simplifyUwe Kleine-König1-14/+1
Make use of devm_clk_get_enabled() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-8-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: ti-ads131e08: Benefit from devm_clk_get_enabled() to simplifyUwe Kleine-König1-18/+1
Make use of devm_clk_get_enabled() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-7-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: lpc18xx: Benefit from devm_clk_get_enabled() to simplifyUwe Kleine-König1-17/+1
Make use of devm_clk_get_enabled() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-5-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: ingenic-adc: Benefit from devm_clk_get_prepared() to simplifyUwe Kleine-König1-13/+2
Make use of devm_clk_get_prepared() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-4-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: ad9467: Benefit from devm_clk_get_enabled() to simplifyUwe Kleine-König1-16/+1
Make use of devm_clk_get_enabled() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-3-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: ad7768-1: Benefit from devm_clk_get_enabled() to simplifyUwe Kleine-König1-16/+1
Make use of devm_clk_get_enabled() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-2-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: ad7124: Benefit from devm_clk_get_enabled() to simplifyUwe Kleine-König1-14/+1
Make use of devm_clk_get_enabled() to replace some code that effectively open codes this new function. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220808204740.307667-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: mt6360: Drop an incorrect __maybe_unused marking.Jonathan Cameron1-1/+1
Given the struct platform_driver has one of it's elements assigned to point to the of_device_id table, it is never going to be unused. Drop the marking. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Gene Chen <gene_chen@richtek.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220807162121.862894-1-jic23@kernel.org
2022-08-16iio: adc: stm32-adc: convert to device propertiesNuno Sá1-55/+73
Make the conversion to firmware agnostic device properties. As part of the conversion the IIO inkern interface 'of_xlate()' is also converted to 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF dependencies from IIO. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Tested-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://lore.kernel.org/r/20220715122903.332535-14-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: qcom-spmi-adc5: convert to device propertiesNuno Sá1-33/+30
Make the conversion to firmware agnostic device properties. As part of the conversion the IIO inkern interface 'of_xlate()' is also converted to 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF dependencies from IIO. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220715122903.332535-13-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: qcom-spmi-vadc: convert to device propertiesNuno Sá1-22/+22
Make the conversion to firmware agnostic device properties. As part of the conversion the IIO inkern interface 'of_xlate()' is also converted to 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF dependencies from IIO. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220715122903.332535-12-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: qcom-pm8xxx-xoadc: convert to device propertiesNuno Sá1-30/+28
Make the conversion to firmware agnostic device properties. As part of the conversion the IIO inkern interface 'of_xlate()' is also converted to 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF dependencies from IIO. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220715122903.332535-11-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: convert to device propertiesNuno Sá1-15/+15
Make the conversion to firmware agnostic device properties. As part of the conversion the IIO inkern interface 'of_xlate()' is also converted to 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF dependencies from IIO. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220715122903.332535-10-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: ab8500-gpadc: convert to device propertiesNuno Sá1-15/+12
Make the conversion to firmware agnostic device properties. As part of the conversion the IIO inkern interface 'of_xlate()' is also converted to 'fwnode_xlate()'. The goal is to completely drop 'of_xlate' and hence OF dependencies from IIO. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220715122903.332535-9-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: ingenic-adc: convert to IIO fwnode interfaceNuno Sá1-4/+4
Move from 'of_xlate()' to 'fwnode_xlate()'. The end goal is to completely drop OF from the IIO inkernel interface. Signed-off-by: Nuno Sá <nuno.sa@analog.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220715122903.332535-8-nuno.sa@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: qcom-spmi-adc5: Add missing VCOIN/GPIO[134] channelsMarijn Suijten1-0/+8
These channels are specified in downstream kernels [1] and actively used by e.g. the Sony Seine platform on the SM6125 SoC. Note that GPIO2 isn't used on this platform and, while the definition downstream is identical to the other GPIOx_100K_PU definitions, has been omitted for lack of proper testing. [1]: https://source.codeaurora.org/quic/la/kernel/msm-4.14/tree/drivers/iio/adc/qcom-spmi-adc5.c?h=LA.UM.7.11.r1-05200-NICOBAR.0#n688 Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Link: https://lore.kernel.org/r/20220805135729.1037079-3-marijn.suijten@somainline.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: add runtime pm supportClaudiu Beznea1-42/+166
Add runtime PM support by disabling/enabling ADC's peripheral clock. On simple conversion the ADC's clock is kept enabled just while the conversion is in progress. This includes also temperature conversion. For triggered buffers and touch conversions the ADC clock is kept enabled while the triggered buffers or touch are enabled. Along with it removed the __maybe_unused on suspend() and resume() ops as the dev_pm_ops object members are now filled with SYSTEM_SLEEP_PM_OPS(). Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-20-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: add empty line after functionsClaudiu Beznea1-0/+1
Add empty line after function. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-19-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: add support for temperature sensorClaudiu Beznea1-7/+249
The ADC on SAMA7G5 has a dedicated channel (channel 31) for measuring in-SoC temperature. 2 inputs are multiplexed on channel 31, VTEMP and VBG as follows: ` | \ +-----+ VBG --->| | ch31 | | Vtemp --->| |----->| ADC | | / | | | / +-----+ . where: - VTEMP is proportional to the absolute temperature voltage - VBG is a quasi-temperature independent voltage Both VBG and VTEMP are needed to determine the correct in-SoC temperature. At a moment of time only one of these could be measured, the selection being done with bit SRCLCH bit of ACR register. The formula to calculate the temperature is as follows: P1 + (Vref * (VTEMP - P6 - P4 * VBG)) / (VBG * VTEMP_DT) where: - P1, P4, P6 are calibration data retrieved from OTP memory - Vref is the reference voltage for ADC - VTEMP_DT is the voltage sensitivity to temperature and is constant - VTEMP, VBG are the measured values from channel 31 For better resolution before reading the temperature certain settings for oversampling ratio, sample frequency, EMR.TRACKX, MR.TRACKTIM are applied. The initial settings are reapplied at the end of temperature reading. Current support is not integrated with trigger buffers channel 31 not being enabled/disabled in functions at91_adc_buffer_prepare(), at91_adc_buffer_postdisable() thus the conversion for channel 31 is not done in case trigger buffers are enabled. In case of trigger buffers are enabled and temperature requests are received in the driver though at91_adc_read_temp() the at91_adc_read_temp() will return with an error code. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-18-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: lock around at91_adc_read_info_raw()Claudiu Beznea1-20/+19
Remove iio_device_{claim, release}_direct_mode() and lock/unlock to &st->lock from at91_adc_read_info_raw(). Instead add a wrapper around at91_adc_read_info_raw() and do there the lock/unlock. This will allow using the at91_adc_read_info_raw() in patch that add support for temperature sensor. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-16-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: add startup and tracktim as parameter for ↵Claudiu Beznea1-7/+11
at91_adc_setup_samp_freq() Add startup and tracktim as parameter for at91_adc_setup_samp_freq() function. In case of temperature sensor being enabled these parameters will be configured on temperature read request to improve the accuracy of the read temperature. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-15-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: update trackx on emrClaudiu Beznea1-4/+10
Add support for updating trackx bits of EMR register. Having different values of EMR.TRACKX when measuring temperature give a better accuracy. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-14-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: move oversampling storage in its functionClaudiu Beznea1-2/+2
Move the storage of oversampling_ratio in at91_adc_config_emr(). This prepares for the next commits. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-13-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: add 64 and 256 oversampling ratioClaudiu Beznea1-5/+26
Add 64 and 256 oversampling ratio support. It is necessary for temperature sensor. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-12-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: adjust osr based on specific platform dataClaudiu Beznea1-13/+22
ADC captures data on 12 bits (if oversampling is not enabled). When using oversampling captured data could go up to 14 bits for SAMA5D2 or up to 16 bits for SAMA7G5 (depending on oversampling settings). All the channels that are subject of oversampling are registered as 14 or 16 real bits. Depending on the oversampling settings the ADC converted value need to be shifted up to 14 or 16 to cope with realbits value registered to IIO subsystem. Commit adds platform specific information to know if we run on a system with up to 14 or 16 bits ADC converted data. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-11-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: add .read_avail() chan_info opsClaudiu Beznea1-15/+35
Add .read_avail() to chan_info ops which will retrieve the available oversampling ratio. Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-10-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: drop AT91_OSR_XSAMPLES definesClaudiu Beznea1-14/+9
Drop AT91_OSR_1SAMPLES, AT91_OSR_4SAMPLES, AT91_OSR_16SAMPLES defines and insted use their values inline. Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-9-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: move the check of oversampling in its functionClaudiu Beznea1-8/+10
Oversampling values are checked anyway in at91_adc_emr_config(). Remove the checking of these from at91_adc_write_raw() and return -EINVAL instead in at91_adc_emr_config(). Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-8-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: handle different EMR.OSR for different hw versionsClaudiu Beznea1-13/+18
SAMA7G5 introduces 64 and 256 oversampling rates. Due to this EMR.OSR is 3 bits long. Change the code to reflect this. Commit prepares the code for the addition of 64 and 256 oversampling rates. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-7-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: exit from write_raw() when buffers are enabledClaudiu Beznea1-0/+10
When buffers are enabled conversion may start asynchronously thus allowing changes on actual hardware could lead to bad behavior. Thus do not allow changing oversampling ratio and sample frequency when if iio_device_claim_direct_mode() returns with error. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-6-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: disable/prepare buffer on suspend/resumeClaudiu Beznea1-7/+7
In case triggered buffers are enabled while system is suspended they will not work anymore after resume. For this call at91_adc_buffer_postdisable() on suspend and at91_adc_buffer_prepare() on resume. On tests it has been seen that at91_adc_buffer_postdisable() call is not necessary but it has been kept because it also does the book keeping for DMA. On resume path there is no need to call at91_adc_configure_touch() as it is embedded in at91_adc_buffer_prepare(). Fixes: 073c662017f2f ("iio: adc: at91-sama5d2_adc: add support for DMA") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-5-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: lock around oversampling and sample freqClaudiu Beznea1-4/+8
.read_raw()/.write_raw() could be called asynchronously from user space or other in kernel drivers. Without locking on st->lock these could be called asynchronously while there is a conversion in progress. Read will be harmless but changing registers while conversion is in progress may lead to inconsistent results. Thus, to avoid this lock st->lock. Fixes: 27e177190891 ("iio:adc:at91_adc8xx: introduce new atmel adc driver") Fixes: 6794e23fa3fe ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-4-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: check return status for pressure and touchClaudiu Beznea1-2/+6
Check return status of at91_adc_read_position() and at91_adc_read_pressure() in at91_adc_read_info_raw(). Fixes: 6794e23fa3fe ("iio: adc: at91-sama5d2_adc: add support for oversampling resolution") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-3-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: at91-sama5d2_adc: fix AT91_SAMA5D2_MR_TRACKTIM_MAXClaudiu Beznea1-1/+1
All ADC HW versions handled by this driver (SAMA5D2, SAM9X60, SAMA7G5) have MR.TRACKTIM on 4 bits. Fix AT91_SAMA5D2_MR_TRACKTIM_MAX to reflect this. Fixes: 27e177190891 ("iio:adc:at91_adc8xx: introduce new atmel adc driver") Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220803102855.2191070-2-claudiu.beznea@microchip.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: Add rtq6056 supportChiYuan Huang3-0/+677
Add Richtek rtq6056 supporting. It can be used for the system to monitor load current and power with 16-bit resolution. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/1658242365-27797-3-git-send-email-u0084500@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-16iio: adc: imx8qxp-adc: propagate regulator_get_voltage errorMartin Larsson1-3/+5
If the ADC vref regulator returns an error, for example, if CONFIG_REGULATOR is not set, the error will be used as a reference voltage. Introduce a guard for negative return values instead of unconditionally casting it to u32. Acked-by: Haibo Chen <haibo.chen@nxp.com> Signed-off-by: Martin Larsson <martin.larsson@actia.se> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20220720153136.3502440-1-martin.larsson@actia.se Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-07-19iio: adc: max1027: unlock on error path in max1027_read_single_value()Dan Carpenter1-3/+3
If max1027_wait_eoc() fails then call iio_device_release_direct_mode() before returning. Fixes: a0e831653ef9 ("iio: adc: max1027: Introduce an end of conversion helper") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YsbztVuAXnau2cIZ@kili Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-07-18iio: adc: imx8qxp: Switch to DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr()Jonathan Cameron1-7/+6
Switching to these newer macros allows the compiler to remove the unused functions and struct dev_pm_ops if !CONFIG_PM without the need to mark anything __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Cai Huoqing <cai.huoqing@linux.dev> Reviewed-by: Haibo Chen <haibo.chen@nxp.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-28-jic23@kernel.org
2022-07-18iio: adc: xilinx-ams: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-4/+4
Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-10-jic23@kernel.org
2022-07-18iio: adc: ti-am335x: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-4/+4
Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-9-jic23@kernel.org
2022-07-18iio: adc: stmpe-adc: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-3/+3
Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. This one is a little unusual as no suspend callback, but the cleanup is still worthwhile (and eventual aim is to get rid of old macro). Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Philippe Schenker <philippe.schenker@toradex.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-8-jic23@kernel.org
2022-07-18iio: adc: mt6577_auxadc: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-6/+6
Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Zhiyong Tao <zhiyong.tao@mediatek.com> Cc: Hui Liu <hui.liu@mediatek.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-7-jic23@kernel.org
2022-07-18iio: adc: meson_saradc: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-5/+5
Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-6-jic23@kernel.org
2022-07-18iio: adc: imx7d_adc: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-2/+3
In this case we only gain the ability to have the compiler drop the struct dev_pm_ops because the callbacks are called from paths other than suspend and resume. In general the purpose of this new macro is to allow automated removal of the callbacks as well, but that doesn't apply here. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Haibo Chen <haibo.chen@nxp.com> Reviewed-by: Haibo Chen <haibo.chen@nxp.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-5-jic23@kernel.org
2022-07-18iio: adc: at91-sam5d2: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-4/+5
Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Eugen Hristev <eugen.hristev@microchip.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Ludovic Desroches <ludovic.desroches@microchip.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-4-jic23@kernel.org
2022-07-18iio: adc: ad799x: Switch to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr()Jonathan Cameron1-4/+4
Using these newer macros allows the compiler to remove the unused structure and functions when !CONFIG_PM_SLEEP + removes the need to mark pm functions __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-3-jic23@kernel.org
2022-07-18iio: adc: ti-ads124s08: Drop unused parameter to ads124s_read()Jonathan Cameron1-3/+3
The channel number is never used in this call, so don't pass it in. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20220626153828.589664-1-jic23@kernel.org
2022-07-18iio: adc: npcm: Add NPCM8XX supportTomer Maimon1-7/+29
Adding ADC NPCM8XX support to NPCM ADC driver. ADC NPCM8XX uses a different resolution and voltage reference. As part of adding NPCM8XX support: - Add NPCM8XX specific compatible string. - Add data to handle architecture-specific ADC parameters. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Link: https://lore.kernel.org/r/20220713132640.215916-3-tmaimon77@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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