- 05 Nov, 2021 16 commits
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Krzysztof Kozlowski authored
Interrupt line can be configured on different hardware in different way, even inverted. Therefore driver should not enforce specific trigger type - edge falling - but instead rely on Devicetree to configure it. The Maxim 77693 datasheet describes the interrupt line as active low with a requirement of acknowledge from the CPU therefore the edge falling is not correct. The interrupt line is shared between PMIC and RTC driver, so using level sensitive interrupt is here especially important to avoid races. With an edge configuration in case if first PMIC signals interrupt followed shortly after by the RTC, the interrupt might not be yet cleared/acked thus the second one would not be noticed. Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210602110445.33536-3-krzysztof.kozlowski@canonical.com
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Krzysztof Kozlowski authored
Interrupt line can be configured on different hardware in different way, even inverted. Therefore driver should not enforce specific trigger type - edge falling - but instead rely on Devicetree to configure it. The Maxim 77686 datasheet describes the interrupt line as active low with a requirement of acknowledge from the CPU therefore the edge falling is not correct. The interrupt line is shared between PMIC and RTC driver, so using level sensitive interrupt is here especially important to avoid races. With an edge configuration in case if first PMIC signals interrupt followed shortly after by the RTC, the interrupt might not be yet cleared/acked thus the second one would not be noticed. Signed-off-by:
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Krzysztof Kozlowski authored
Interrupt line can be configured on different hardware in different way, even inverted. Therefore driver should not enforce specific trigger type - edge falling - but instead rely on Devicetree to configure it. The Samsung PMIC drivers are used only on Devicetree boards. Additionally, the PMIC datasheets describe the interrupt line as active low with a requirement of acknowledge from the CPU therefore the edge falling is not correct. Marek Szyprowski reports that together with DTS change (proper level in DTS) it fixes RTC alarm failure that he observed from time to time on TM2e board. Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
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Paul Kocialkowski authored
The LogiCVC multi-function device has a display part which is now described in its binding. Add a patternProperties match for it. Signed-off-by:
Paul Kocialkowski <paul.kocialkowski@bootlin.com> Acked-by:
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Krzysztof Kozlowski authored
The MODULE_DEVICE_TABLE already creates proper alias. Having another MODULE_ALIAS causes the alias to be duplicated: $ modinfo cros_ec_dev.ko alias: platform:cros-ec-dev srcversion: F84A69D2156719A4F717A76 alias: platform:cros-ec-dev Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by:
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Ramona Alexandra Nechita authored
The description mentioned AD5520, which is a different device. Fixed the typo. Signed-off-by:
Ramona Alexandra Nechita <ramona.nechita@analog.com> Signed-off-by:
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Chunyan Zhang authored
SC2730 is a PMIC SoC integrated in UMS512. Signed-off-by:
Chunyan Zhang <chunyan.zhang@unisoc.com> Signed-off-by:
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Baruch Siach authored
Signed-off-by:
Baruch Siach <baruch@tkos.co.il> Signed-off-by:
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Carlos de Paula authored
This update adds new regmap to support the latest EA silicon which will be selected based on the chip and variant information read from the device. Signed-off-by:
Carlos de Paula <me@carlosedp.com> Reviewed-by:
Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by:
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Ondrej Jirman authored
RK817 has a power-off bit in SYS_CFG3. Add support for powering off the PMIC. Signed-off-by:
Ondrej Jirman <megous@megous.com> Signed-off-by:
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Prarit Bhargava authored
The intel_pmt driver shows up as a compile option for all arches but is 32-bit and 64-bit x86 specific. Add a CONFIG dependency on X86 for intel_pmt. Signed-off-by:
Prarit Bhargava <prarit@redhat.com> Reviewed-by:
David E. Box <david.e.box@linux.intel.com> Reviewed-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Colin Ian King authored
There is a spelling mistake in a dev_err message. Fix it. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Rafał Miłecki authored
Northstar's USB 2.0 PHY is part of the CRU MFD. Signed-off-by:
Rafał Miłecki <rafal@milecki.pl> Reviewed-by:
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Rafał Miłecki authored
CRU has a shared register that is used e.g. to control USB 2.0 PHY block access. It's a single 32 b register. Document it as syscon so it can be used with a regmap. Signed-off-by:
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Rafał Miłecki authored
Broadcom's MISC is an MFD hardware block used on some of their SoCs like bcm63xx and bcm4908. At this point only PCIe reset is fully understood and documented. More functions may be added later. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
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Lee Jones authored
Merge branches 'ib-mfd-iio-touchscreen-clk-5.16', 'ib-mfd-misc-regulator-5.16' and 'tb-mfd-from-regulator-5.16' into ibs-for-mfd-merged
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- 21 Oct, 2021 23 commits
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Krzysztof Kozlowski authored
Document the properties with regulator supplies for bucks and LDOs. At least one board uses it (Exynos5250 Arndale). Signed-off-by:
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Krzysztof Kozlowski authored
Convert the MFD part of Samsung S5M8767 PMIC to DT schema format. Previously the bindings were mostly in mfd/samsung,sec-core.txt. Since all of bindings for Samsung S2M and S5M family of PMICs were converted from mfd/samsung,sec-core.txt to respective dtschema file, remove the former one. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the MFD part of Samsung S2MPA01 PMIC to DT schema format. Previously the bindings were mostly in mfd/samsung,sec-core.txt. Signed-off-by:
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Krzysztof Kozlowski authored
Convert the MFD part of Samsung S2MPS11/S2MPS13/S2MPS14/S2MPS15/S2MPU02 family of PMICs to DT schema format. Previously the bindings were mostly in mfd/samsung,sec-core.txt. The conversion copies parts of description from existing bindings therefore the license is not changed from GPLv2. Signed-off-by:
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Lee Jones authored
regulator/clock: Convert the s2m and s5m DT bindings to schema Tagged to allow further bindings to rely on these. Signed-off-by: -
Miquel Raynal authored
This driver supports both the legacy controller (am33xx) and the extended one (am437x), so let's add a new compatible. Signed-off-by:
Miquel Raynal <miquel.raynal@bootlin.com> Acked-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by:
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Miquel Raynal authored
Without the scale, the values returned to the user are just a picture of the input voltage against the full scale range of the ADC. We need to provide the actual conversion factor to get milli-Volts values. Signed-off-by:
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Miquel Raynal authored
The lack of unit in the macro name kind of tricked me when I was troubleshooting an issue. Physical constants should always get a unit. Signed-off-by:
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Miquel Raynal authored
Move the checks over the delays provided in the device tree to the location where these values are read to clarify where they come from. There are no functional changes besides the device structure used to display the warnings: let's use the ADC instead of the MFD device. Signed-off-by:
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Miquel Raynal authored
Gotos jumping to a return statement are not really useful, drop them. Signed-off-by:
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Miquel Raynal authored
These warnings are reported by checkpatch.pl essentially. Signed-off-by:
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Miquel Raynal authored
Drop the text license and replace it with an equivalent SPDX license tag identifier which also matches the MODULE_LICENSE("GPL"). Signed-off-by: -
Miquel Raynal authored
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:
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Miquel Raynal authored
There was in the past a typo in the coordinate readouts property. The bindings have been updated, the touchscreen driver as well and now supports both. However, the MFD driver that is in charge of verifying the validity of the property only checks the bogus one. Add support for the correctly spelled DT property. Fixes: c9aeb249 ("Input: ti_am335x_tsc - fix spelling mistake in TSC/ADC DT binding") Signed-off-by:
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Miquel Raynal authored
Introduce a new compatible that has another set of driver data, targeting am437x SoCs with a magnetic reader instead of the touchscreen and a more featureful set of registers. Signed-off-by:
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Miquel Raynal authored
One way of knowing which hardware we are dealing with is to check the compatible string. When this must be done at several places, it's best and certainly more clear to use a helper for that. Introduce ti_adc_with_touchscreen() to indicate if there is a touchscreen controller available (meaning it's an am33xx-like ADC). This helper does not indicate if it is actually used (that is the purpose of the use_tsc boolean). Introducing this helper helps making a difference in the code between what is generic to both types of ADCs and what is specific to the am33xx hardware before introducing support for the am437x hardware. Signed-off-by:
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Miquel Raynal authored
Just checking the number of wires will soon not be enough, add a boolean to indicate the actual use or not of the touchscreen. Certain checks only make sense when there is a touchscreen wired. Make these checks explicitly depend on the presence of the touchscreen. Signed-off-by:
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Miquel Raynal authored
The error message if we cannot retrieve the clock tells us that the touchscreen controller clock was unavailable. This is wrong, this is the "main" clock for the hardware block, it is not specific to the touchscreen and won't change when we will introduce ADC1/magnetic reader support so let's correct this comment. Signed-off-by:
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Miquel Raynal authored
We need to retrieve the number of wires used by the "secondary" device (the touchscreen or the magnetic reader). Let's rename tsc_wires to become tscmag_wires to clarify the fact that this variable can be used in both situations. Signed-off-by:
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Miquel Raynal authored
While the register list (and names) between ADC0 and ADC1 are pretty close, the bits inside changed a little bit. To avoid any future confusion, let's add the TSC prefix when some bits are in a register that is common to both revisions of the ADC, but are specific to the am33xx hardware. Signed-off-by:
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Miquel Raynal authored
This bit is common to all devices (ADC, Touchscreen, Magnetic reader) so make it clear that it can be used from any location by operating a mechanical rename: s/CNTRLREG_TSCSSENB/CNTRLREG_SSENB/ Signed-off-by:
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Miquel Raynal authored
Drop useless definitions from the header like the "masks" definitions which are only used by the following definition. It could be possible to got even further by removing these definitions entirely and use FIELD_PREP() macros from the code directly, but while I have no troubles making these changes in the header, changing the values in the code directly could darkening a bit the logic and hardening future git-blames for very little added value IMHO (but this is of course a personal taste). Certain macros are using GENMASK() to define the value of a particular field, while this is purely "by chance" that the value and the mask have the same value. In this case, drop the "mask" definition, use FIELD_PREP() and GENMASK() in the macro defining the field, and use the new macro to define the particular value by feeding directly the actual number advertised in the datasheet into that macro, as in: -#define STEPCONFIG_RFM_VREFN GENMASK(24, 23) -#define STEPCONFIG_RFM(val) FIELD_PREP(STEPCONFIG_RFM_VREFN, (val)) +#define STEPCONFIG_RFM(val) FIELD_PREP(GENMASK(24, 23), (val)) +#define STEPCONFIG_RFM_VREFN STEPCONFIG_RFM(3) Signed-off-by:
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Miquel Raynal authored
Clearly define the maximum open delay and sample delay. Use these definitions in place of a mask (which works because this is the first field in the register) and an open-coded value. While at it reword a little bit the error messages to make them look clearer and similar. Signed-off-by:
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- 20 Oct, 2021 1 commit
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Miquel Raynal authored
Clean the ti_am335x_tscadc.h header by: * converting masks to GENMASK() * converting regular shifts to BIT() * using FIELD_PREP() when relevant Sometimes reorder the lines to be able to use the relevant bitmask. Mind the s/%d/%ld/ change in a log due to the type change following the use of FIELD_PREP() in the header. Suggested-by:
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