- 21 Dec, 2021 14 commits
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Anand Ashok Dumbre authored
Xilinx AMS have several ADC channels that can be used for measurement of different voltages and temperatures. Document the same in the bindings. Signed-off-by:
Anand Ashok Dumbre <anand.ashok.dumbre@xilinx.com> Reviewed-by:
Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20211203212358.31444-5-anand.ashok.dumbre@xilinx.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Anand Ashok Dumbre authored
The AMS includes an ADC as well as on-chip sensors that can be used to sample external voltages and monitor on-die operating conditions, such as temperature and supply voltage levels. The AMS has two SYSMON blocks. PL-SYSMON block is capable of monitoring off chip voltage and temperature. PL-SYSMON block has DRP, JTAG and I2C interface to enable monitoring from an external master. Out of these interfaces currently only DRP is supported. Other block PS-SYSMON is memory mapped to PS. The AMS can use internal channels to monitor voltage and temperature as well as one primary and up to 16 auxiliary channels for measuring external voltages. The voltage and temperature monitoring channels also have event capability which allows to generate an interrupt when their value falls below or raises above a set threshold. Co-developed-by:
Manish Narani <manish.narani@xilinx.com> Signed-off-by:
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Anand Ashok Dumbre authored
This patch introduces a new helper routine - fwnode_iomap(), which allows to map the memory mapped IO for a given device node. This implementation does not cover the ACPI case and may be expanded in the future. The main purpose here is to be able to develop resource provider agnostic drivers. Suggested-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/20211203212358.31444-2-anand.ashok.dumbre@xilinx.comSigned-off-by:
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Jonathan Cameron authored
This structure is only used in PM ops, so may not be used depending on build configuration. Signed-off-by:
Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20211128172445.2616166-13-jic23@kernel.org
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Jonathan Cameron authored
If CONFIG_PM not set then clang warns this structure is unused. Signed-off-by:
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Jonathan Cameron authored
Not sure what the thinking was here, as lost to history, but the variable is clearly not used so get rid of it. Warning seen with clang W=1 tests (may be present with other compilers and build options). Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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- 16 Dec, 2021 16 commits
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Jonathan Cameron authored
Cast to a uintptr_t rather than directly to the enum. As per the discussion in below linked media patch. Link: https://lore.kernel.org/linux-media/CAK8P3a2ez6nEw4d+Mqa3XXAz0RFTZHunqqRj6sCt7Y_Eqqs0rw@mail.gmail.com/Signed-off-by:
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Mihail Chindris authored
The AD3552R-16 is a low drift ultrafast, 16-bit accuracy, current output digital-to-analog converter (DAC) designed to generate multiple output voltage span ranges. The AD3552R-16 operates with a fixed 2.5V reference. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ad3552r.pdfSigned-off-by:
Mihail Chindris <mihail.chindris@analog.com> Link: https://lore.kernel.org/r/20211213110825.244347-3-mihail.chindris@analog.comSigned-off-by:
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Mihail Chindris authored
Add documentation for ad3552r and ad3542r Signed-off-by:
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Antoniu Miclaus authored
Add initial ABI documentation for admv8818 filter sysfs interfaces. Signed-off-by:
Antoniu Miclaus <antoniu.miclaus@analog.com> Signed-off-by:
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Antoniu Miclaus authored
Add device tree bindings for the ADMV8818 Filter. Signed-off-by:
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Antoniu Miclaus authored
The ADMV8818-EP is a fully monolithic microwave integrated circuit (MMIC) that features a digitally selectable frequency of operation. The device features four independently controlled high- pass filters (HPFs) and four independently controlled low-pass filters (LPFs) that span the 2 GHz to 18 GHz frequency range. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/admv8818-ep.pdfSigned-off-by:
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Antoniu Miclaus authored
Add filter subfolder for IIO devices that handle filter functionality. Signed-off-by:
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Lars-Peter Clausen authored
The case to u8 * is unnecessary here since the expression is already of type u8 *. Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
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Lars-Peter Clausen authored
`buf` is cast to a const char *, but `buf` is already a const char *, so the case is unnecessary. Signed-off-by:
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Lars-Peter Clausen authored
`buf` is cast to a const char *, but `buf` is already a const char *, so the case is unnecessary. Signed-off-by:
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Kees Cook authored
The find.h APIs are designed to be used only on unsigned long arguments. This can technically result in a over-read, but it is harmless in this case. Regardless, fix it to avoid the warning seen under -Warray-bounds, which we'd like to enable globally: In file included from ./include/linux/bitmap.h:9, from ./include/linux/cpumask.h:12, from ./arch/x86/include/asm/cpumask.h:5, from ./arch/x86/include/asm/msr.h:11, from ./arch/x86/include/asm/processor.h:22, from ./arch/x86/include/asm/cpufeature.h:5, from ./arch/x86/include/asm/thread_info.h:53, from ./include/linux/thread_info.h:60, from ./arch/x86/include/asm/preempt.h:7, from ./include/linux/preempt.h:78, from ./include/linux/spinlock.h:55, from ./include/linux/swait.h:7, from ./include/linux/completion.h:12, from drivers/iio/adc/stmpe-adc.c:10: drivers/iio/adc/stmpe-adc.c: In function 'stmpe_adc_probe': ./include/linux/find.h:98:23: warning: array subscript 'long unsigned int[0]' is partly outside array bounds of 'u32[1]' {aka 'unsigned int[1]'} [-Warray-bounds] 98 | val = *addr | ~GENMASK(size - 1, offset); | ^~~~~ drivers/iio/adc/stmpe-adc.c:258:13: note: while referencing 'norequest_mask' 258 | u32 norequest_mask = 0; | ^~~~~~~~~~~~~~ Signed-off-by:Kees Cook <keescook@chromium.org> Signed-off-by:
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Minghao Chi authored
Return value from ads8688_prog_write() directly instead of taking this in another redundant variable. Reported-by:
Zeal Robot <zealci@zte.com.cn> Signed-off-by:
Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by:
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Dan Carpenter authored
The > needs to be >= to prevent accessing one element beyond the end of the st->channel_configs[] array. Fixes: fea251b6 ("iio: addac: add AD74413R driver") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
Cosmin Tanislav <cosmin.tanislav@analog.com> Signed-off-by:
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Xiang wangx authored
Delete the redundant word 'the'. Signed-off-by:
Xiang wangx <wangxiang@cdjrlc.com> Signed-off-by:
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Zach DeCook authored
By flushing the output, iio_event_monitor can be more useful to programs chained along with it. iio_event_monitor stk3310 | awk '/rising/{system("my_unlockscreen.sh")} /falling/{system("my_lockscreen.sh")}' Without this flush, the above example would buffer a number of events, then after a while run the lock/unlock scripts several times. Signed-off-by:Zach DeCook <zachdecook@librem.one> Signed-off-by:
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Lars-Peter Clausen authored
Drvdata is typically used by drivers to attach driver specific data to a device. It is used to retrieve driver specific information when only the device to which the data is attached is available. In the IIO core in the `iio_device_alloc()` function we call `iio_device_set_drvdata(indio_dev, indio_dev)`. This sets the drvdata of the IIO device to itself. This is rather unnecessary since if we have a pointer to the IIO device to call `iio_device_get_drvdata()` on it we don't need to call the function since we already have the pointer. If we only have a pointer to the `struct device` we can use `dev_to_iio_dev()` to get the IIO device from it. Furthermore the drvdata is supposed to be reserved for drivers, so it should not be used by the IIO core in the first place. The `set_drvdata()` has been around from the very beginning of the IIO framework and back then it was used in the IIO device sysfs attribute handling code. But that was subsequently replaced with a `dev_to_iio_dev()` in commit e53f5ac5 ("iio: Use dev_to_iio_dev()") and other cleanups. The self `set_drvdata()` is now no longer needed and can be removed. Verified that there no longer any users by checking for potential users using the following two coccinelle scripts and reviewing that none of the matches are problematic code. <smpl> @@ struct iio_dev *iio_dev; expression dev; identifier fn !~ "(remove|resume|suspend)"; @@ fn(...) { ... *iio_dev = dev_get_drvdata(dev) ... } </smpl> <smpl> @r1@ position p; struct iio_dev *indio_dev; identifier dev_fn =~ "^dev_"; identifier devm_fn =~ "^devm_"; @@ ( dev_fn | devm_fn ) (&indio_dev@p->dev, ...) @@ struct iio_dev *indio_dev; position p != r1.p; @@ *&indio_dev@p->dev</smpl> Signed-off-by:
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- 12 Dec, 2021 10 commits
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Jonathan Cameron authored
Probably a cut and paste error, but the binding header used in the example is for the wrong device and nothing from it is used. Signed-off-by:
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Jonathan Cameron authored
We could probably drop a lot more of these, but for now this removes unnecessary restrictions on stand alone ADC devices. For these 3 drivers the false dependency seems to date all the way back to their initial introduction. Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com>
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Jonathan Cameron authored
Nothing in this driver depends on OF firmware so drop the dependency and update the headers to remove the false impression such a dependency exists. Signed-off-by:
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Jonathan Cameron authored
There is nothing directly using of specific interfaces in this driver, so lets not include the headers. Signed-off-by:
Peter Rosin <peda@axentia.se> Reviewed-by:
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Jonathan Cameron authored
This enables using the driver with other firmware types such as ACPI via PRP0001. Also part of a general attempt to move IIO drivers over to generic properties to avoid opportunities for cut and paste. Signed-off-by:
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Jonathan Cameron authored
This allows use of the driver with other types of firmware such as ACPI PRP0001 based probing. Also part of a general attempt to remove direct use of of_ specific accessors from IIO. Added an include for mod_devicetable.h whilst here to cover the struct of_device_id definition. Signed-off-by:
Marcus Folkesson <marcus.folkesson@gmail.com>
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Jonathan Cameron authored
Note the handling of the device tree node in this driver was somewhat unusual. I have cleaned that up whilst also moving over to generic properties. Part of a general attempt to move all IIO drivers over to generic firmware properties both as a general improvement and to avoid sources of cut and paste into future drivers. Signed-off-by:
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Jonathan Cameron authored
This enables use of other firmware types with minimal driver changes. Part of an ongoing effort to move all IIO drivers over to generic accessors in order to reduce the chance of of_* versions being copied into new drivers. Also updated the headers to reflect this change including using mod_devicetable.h for struct of_device_id definition rather than going via of.h Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
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Jonathan Cameron authored
In this case it was only of_device_get_match_data() + header update. This enables use of other firmware types with no other changes, such as ACPI via the PRP0001 route. Signed-off-by:
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Jonathan Cameron authored
This driver never used anything from the of specific headers. mod_devicetable.h provides the struct of_device_id definition. Signed-off-by:
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