linux-dev/drivers/iio/adc, branch master

iio: at91-sama5d2_adc: Fix unsafe buffer attributes

2022-10-17T07:51:26Z

The iio_triggered_buffer_setup_ext() was changed by commit 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") to silently expect that all attributes given in buffer_attrs array are device-attributes. This expectation was not forced by the API - and some drivers did register attributes created by IIO_CONST_ATTR(). The added attribute "wrapping" does not copy the pointer to stored string constant and when the sysfs file is read the kernel will access to invalid location. Change the IIO_CONST_ATTRs from the driver to IIO_DEVICE_ATTR in order to prevent the invalid memory access. Signed-off-by: Matti Vaittinen Fixes: 15097c7a1adc ("iio: buffer: wrap all buffer attributes into iio_dev_attr") Tested-by: Claudiu Beznea Link: https://lore.kernel.org/r/be69775aa302159f088b8b91894e6ec449bca65b.1664782676.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron

iio: adc: stm32-adc: fix channel sampling time init

2022-10-17T07:51:26Z

Fix channel init for ADC generic channel bindings. In generic channel initialization, stm32_adc_smpr_init() is called to initialize channel sampling time. The "st,min-sample-time-ns" property is an optional property. If it is not defined, stm32_adc_smpr_init() is currently skipped. However stm32_adc_smpr_init() must always be called, to force a minimum sampling time for the internal channels, as the minimum sampling time is known. Make stm32_adc_smpr_init() call unconditional. Fixes: 796e5d0b1e9b ("iio: adc: stm32-adc: use generic binding for sample-time") Signed-off-by: Olivier Moysan Reviewed-by: Andy Shevchenko Reviewed-by: Fabrice Gasnier Link: https://lore.kernel.org/r/20221012142205.13041-2-olivier.moysan@foss.st.com Cc: Signed-off-by: Jonathan Cameron

iio: adc: mcp3911: mask out device ID in debug prints

2022-10-17T07:51:26Z

The Device ID should not be included when printing register. Signed-off-by: Marcus Folkesson Link: https://lore.kernel.org/r/20221010194654.676525-1-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron

iio: adc: mcp3911: use correct id bits

2022-10-17T07:51:26Z

The device ID should be shifted 6 bits to left according to datasheet. Fixes: 3a89b289df5d ("iio: adc: add support for mcp3911") Signed-off-by: Marcus Folkesson Link: https://lore.kernel.org/r/20221010194641.676484-1-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron

iio: adc: mcp3911: return proper error code on failure to allocate trigger

2022-10-17T07:51:26Z

smatch warnings: drivers/iio/adc/mcp3911.c:441 mcp3911_probe() warn: passing zero to 'PTR_ERR' Fixes: 08a65f61db69 ("iio: adc: mcp3911: add support for interrupts") Reported-by: kernel test robot Reported-by: Dan Carpenter Signed-off-by: Marcus Folkesson Link: https://lore.kernel.org/r/20220927092537.94663-1-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron

iio: adc: mcp3911: fix sizeof() vs ARRAY_SIZE() bug

2022-10-17T07:51:26Z

This code uses sizeof() instead of ARRAY_SIZE() so it reads beyond the end of the mcp3911_osr_table[] array. Fixes: 6d965885f4ea ("iio: adc: mcp3911: add support for oversampling ratio") Signed-off-by: Dan Carpenter Reviewed-by: Marcus Folkesson Link: https://lore.kernel.org/r/YzFsjY3xLHUQMjVr@kili Signed-off-by: Jonathan Cameron

Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2022-10-08T15:56:37Z

Pull char/misc and other driver updates from Greg KH: "Here is the large set of char/misc and other small driver subsystem changes for 6.1-rc1. Loads of different things in here: - IIO driver updates, additions, and changes. Probably the largest part of the diffstat - habanalabs driver update with support for new hardware and features, the second largest part of the diff. - fpga subsystem driver updates and additions - mhi subsystem updates - Coresight driver updates - gnss subsystem updates - extcon driver updates - icc subsystem updates - fsi subsystem updates - nvmem subsystem and driver updates - misc driver updates - speakup driver additions for new features - lots of tiny driver updates and cleanups All of these have been in the linux-next tree for a while with no reported issues" * tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits) w1: Split memcpy() of struct cn_msg flexible array spmi: pmic-arb: increase SPMI transaction timeout delay spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes spmi: pmic-arb: correct duplicate APID to PPID mapping logic spmi: pmic-arb: add support to dispatch interrupt based on IRQ status spmi: pmic-arb: check apid against limits before calling irq handler spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq spmi: pmic-arb: handle spurious interrupt spmi: pmic-arb: add a print in cleanup_irq drivers: spmi: Directly use ida_alloc()/free() MAINTAINERS: add TI ECAP driver info counter: ti-ecap-capture: capture driver support for ECAP Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items dt-bindings: counter: add ti,am62-ecap-capture.yaml counter: Introduce the COUNTER_COMP_ARRAY component type counter: Consolidate Counter extension sysfs attribute creation counter: Introduce the Count capture component counter: 104-quad-8: Add Signal polarity component counter: Introduce the Signal polarity component counter: interrupt-cnt: Implement watch_validate callback ...

Merge tag 'i2c-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2022-10-05T01:54:33Z

Pull i2c updates from Wolfram Sang: - 'remove' callback converted to return void. Big change with trivial fixes all over the tree. Other subsystems depending on this change have been asked to pull an immutable topic branch for this. - new driver for Microchip PCI1xxxx switch - heavy refactoring of the Mellanox BlueField driver - we prefer async probe in the i801 driver now - the rest is usual driver updates (support for more SoCs, some refactoring, some feature additions) * tag 'i2c-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (37 commits) i2c: pci1xxxx: prevent signed integer overflow i2c: acpi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper i2c: i801: Prefer async probe i2c: designware-pci: Use standard pattern for memory allocation i2c: designware-pci: Group AMD NAVI quirk parts together i2c: microchip: pci1xxxx: Add driver for I2C host controller in multifunction endpoint of pci1xxxx switch docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED i2c: mlxbf: remove device tree support i2c: mlxbf: support BlueField-3 SoC i2c: cadence: Add standard bus recovery support i2c: mlxbf: add multi slave functionality i2c: mlxbf: support lock mechanism macintosh/ams: Adapt declaration of ams_i2c_remove() to earlier change i2c: riic: Use devm_platform_ioremap_resource() i2c: mlxbf: remove IRQF_ONESHOT dt-bindings: i2c: rockchip: add rockchip,rk3128-i2c dt-bindings: i2c: renesas,rcar-i2c: Add r8a779g0 support i2c: tegra: Add GPCDMA support i2c: scmi: Convert to be a platform driver i2c: rk3x: Add rv1126 support ...

Merge tag 'thermal-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2022-10-03T22:33:38Z

Pull thermal control updates from Rafael Wysocki: "The most significant part of this update is the thermal control DT initialization rework from Daniel Lezcano and the following conversion of drivers to use the new API introduced by it Apart from that, the maximum number of trip points in a thermal zone is increased and there are some fixes and code cleanups Specifics: - Rework the device tree initialization, convert the drivers to the new API and remove the old OF code (Daniel Lezcano) - Fix return value to -ENODEV when searching for a specific thermal zone which does not exist (Daniel Lezcano) - Fix the return value inspection in of_thermal_zone_find() (Dan Carpenter) - Fix kernel panic when KASAN is enabled as it detects use after free when unregistering a thermal zone (Daniel Lezcano) - Move the set_trip ops inside the therma sysfs code (Daniel Lezcano) - Remove unnecessary error message as it is already shown in the underlying function (Jiapeng Chong) - Rework the monitoring path and move the locks upper in the call stack to fix some potentials race windows (Daniel Lezcano) - Fix lockdep_assert() warning introduced by the lock rework (Daniel Lezcano) - Do not lock thermal zone mutex in the user space governor (Rafael Wysocki) - Revert the Mellanox 'hotter thermal zone' feature because it is already handled in the thermal framework core code (Daniel Lezcano) - Increase maximum number of trip points in the thermal core (Sumeet Pawnikar) - Replace strlcpy() with unused retval with strscpy() in the core thermal control code (Wolfram Sang) - Use module_pci_driver() macro in the int340x processor_thermal driver (Shang XiaoJing) - Use get_cpu() instead of smp_processor_id() in the intel_powerclamp thermal driver to prevent it from crashing and remove unused accounting for IRQ wakes from it (Srinivas Pandruvada) - Consolidate priv->data_vault checks in int340x_thermal (Rafael Wysocki) - Check the policy first in cpufreq_cooling_register() (Xuewen Yan) - Drop redundant error message from da9062-thermal (zhaoxiao) - Drop of_match_ptr() from thermal_mmio (Jean Delvare)" * tag 'thermal-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (55 commits) thermal: core: Increase maximum number of trip points thermal: int340x: processor_thermal: Use module_pci_driver() macro thermal: intel_powerclamp: Remove accounting for IRQ wakes thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash thermal: int340x_thermal: Consolidate priv->data_vault checks thermal: cpufreq_cooling: Check the policy first in cpufreq_cooling_register() thermal: Drop duplicate words from comments thermal: move from strlcpy() with unused retval to strscpy() thermal: da9062-thermal: Drop redundant error message thermal/drivers/thermal_mmio: Drop of_match_ptr() thermal: gov_user_space: Do not lock thermal zone mutex Revert "mlxsw: core: Add the hottest thermal zone detection" thermal/core: Fix lockdep_assert() warning thermal/core: Move the mutex inside the thermal_zone_device_update() function thermal/core: Move the thermal zone lock out of the governors thermal/governors: Group the thermal zone lock inside the throttle function thermal/core: Rework the monitoring a bit thermal/core: Rearm the monitoring only one time thermal/drivers/qcom/spmi-adc-tm5: Remove unnecessary print function dev_err() thermal/of: Remove old OF code ...

iio: adc: mcp3911: add support for oversampling ratio

2022-09-21T20:15:10Z

The chip supports oversampling ratio, so expose it to userspace. Signed-off-by: Marcus Folkesson Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220815061625.35568-9-marcus.folkesson@gmail.com Signed-off-by: Jonathan Cameron