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2019-08-07hwmon: (lm75) Fixup tmp75b clr_maskIker Perez del Palomar Sustatxa1-1/+1
The configuration register of the tmp75b sensor is 16bit long, however the first byte is reserved, so there is not no need to take care of it. Because the order of the bytes is little endian and it is only necessary to write one byte, the desired bits must be shifted into a 8 bit range. Fixes: 39abe9d88b30 ("hwmon: (lm75) Add support for TMP75B") Cc: stable@vger.kernel.org Signed-off-by: Iker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk> Link: https://lore.kernel.org/r/20190801075324.4638-1-iker.perez@codethink.co.uk Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-08-07hwmon: (nct7802) Fix wrong detection of in4 presenceGuenter Roeck1-3/+3
The code to detect if in4 is present is wrong; if in4 is not present, the in4_input sysfs attribute is still present. In detail: - Ihen RTD3_MD=11 (VSEN3 present), everything is as expected (no bug). - If we have RTD3_MD!=11 (no VSEN3), we unexpectedly have a in4_input file under /sys and the "sensors" command displays in4_input. But as expected, we have no in4_min, in4_max, in4_alarm, in4_beep. Fix is_visible function to detect and report in4_input visibility as expected. Reported-by: Gilles Buloz <Gilles.Buloz@kontron.com> Cc: Gilles Buloz <Gilles.Buloz@kontron.com> Cc: stable@vger.kernel.org Fixes: 3434f37835804 ("hwmon: Driver for Nuvoton NCT7802Y") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-21hwmon: (nct6775) Fix register address and added missed tolerance for nct6106Björn Gerhart1-1/+2
Fixed address of third NCT6106_REG_WEIGHT_DUTY_STEP, and added missed NCT6106_REG_TOLERANCE_H. Fixes: 6c009501ff200 ("hwmon: (nct6775) Add support for NCT6102D/6106D") Signed-off-by: Bjoern Gerhart <gerhart@posteo.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-21hwmon: (occ) Fix division by zero issueLei YU1-2/+4
The code in occ_get_powr_avg() invokes div64_u64() without checking the divisor. In case the divisor is zero, kernel gets an "Division by zero in kernel" error. Check the divisor and make it return 0 if the divisor is 0. Fixes: c10e753d43eb ("hwmon (occ): Add sensor types and versions") Signed-off-by: Lei YU <mine260309@gmail.com> Reviewed-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/1562813088-23708-1-git-send-email-mine260309@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-19Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds1-0/+48
Pull ARM SoC-related driver updates from Olof Johansson: "Various driver updates for platforms and a couple of the small driver subsystems we merge through our tree: - A driver for SCU (system control) on NXP i.MX8QXP - Qualcomm Always-on Subsystem messaging driver (AOSS QMP) - Qualcomm PM support for MSM8998 - Support for a newer version of DRAM PHY driver for Broadcom (DPFE) - Reset controller support for Bitmain BM1880 - TI SCI (System Control Interface) support for CPU control on AM654 processors - More TI sysc refactoring and rework" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (84 commits) reset: remove redundant null check on pointer dev soc: rockchip: work around clang warning dt-bindings: reset: imx7: Fix the spelling of 'indices' soc: imx: Add i.MX8MN SoC driver support soc: aspeed: lpc-ctrl: Fix probe error handling soc: qcom: geni: Add support for ACPI firmware: ti_sci: Fix gcc unused-but-set-variable warning firmware: ti_sci: Use the correct style for SPDX License Identifier soc: imx8: Use existing of_root directly soc: imx8: Fix potential kernel dump in error path firmware/psci: psci_checker: Park kthreads before stopping them memory: move jedec_ddr.h from include/memory to drivers/memory/ memory: move jedec_ddr_data.c from lib/ to drivers/memory/ MAINTAINERS: Remove myself as qcom maintainer soc: aspeed: lpc-ctrl: make parameter optional soc: qcom: apr: Don't use reg for domain id soc: qcom: fix QCOM_AOSS_QMP dependency and build errors memory: tegra: Fix -Wunused-const-variable firmware: tegra: Early resume BPMP soc/tegra: Select pinctrl for Tegra194 ...
2019-07-11Merge tag 'char-misc-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds2-2/+3
Pull char / misc driver updates from Greg KH: "Here is the "large" pull request for char and misc and other assorted smaller driver subsystems for 5.3-rc1. It seems that this tree is becoming the funnel point of lots of smaller driver subsystems, which is fine for me, but that's why it is getting larger over time and does not just contain stuff under drivers/char/ and drivers/misc. Lots of small updates all over the place here from different driver subsystems: - habana driver updates - coresight driver updates - documentation file movements and updates - Android binder fixes and updates - extcon driver updates - google firmware driver updates - fsi driver updates - smaller misc and char driver updates - soundwire driver updates - nvmem driver updates - w1 driver fixes All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (188 commits) coresight: Do not default to CPU0 for missing CPU phandle dt-bindings: coresight: Change CPU phandle to required property ocxl: Allow contexts to be attached with a NULL mm fsi: sbefifo: Don't fail operations when in SBE IPL state coresight: tmc: Smatch: Fix potential NULL pointer dereference coresight: etm3x: Smatch: Fix potential NULL pointer dereference coresight: Potential uninitialized variable in probe() coresight: etb10: Do not call smp_processor_id from preemptible coresight: tmc-etf: Do not call smp_processor_id from preemptible coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from preemptible coresight: tmc-etr: Do not call smp_processor_id() from preemptible docs: misc-devices: convert files without extension to ReST fpga: dfl: fme: align PR buffer size per PR datawidth fpga: dfl: fme: remove copy_to_user() in ioctl for PR fpga: dfl-fme-mgr: fix FME_PR_INTFC_ID register address. intel_th: msu: Start read iterator from a non-empty window intel_th: msu: Split sgt array and pointer in multiwindow mode intel_th: msu: Support multipage blocks intel_th: pci: Add Ice Lake NNPI support intel_th: msu: Fix single mode with disabled IOMMU ...
2019-07-11Merge tag 'hwmon-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-stagingLinus Torvalds17-457/+864
Pull hwmon updates from Guenter Roeck: - New drivers for Infineon PXE1610 and IRPS5401 - Minor improvements, cleanup, and fixes in several drivers * tag 'hwmon-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (33 commits) hwmon: (ina3221) Add of_node_put() before return hwmon: (gpio-fan) fix sysfs notifications and udev events for gpio-fan alarms hwmon: (gpio-fan) move fan_alarm_init after devm_hwmon_device_register_with_groups hwmon: (lm90) Introduce function to update configuration register hwmon: (lm90) Cache configuration register value hwmon: (lm90) Fix max6658 sporadic wrong temperature reading hwmon: (nct7904) Changes comments in probe function. hwmon: (nct7904) Add error handling in probe function. hwmon: Convert remaining drivers to use SPDX identifier hwmon: (max6650) Fix unused variable warning hwmon: (pmbus/adm1275) Fix power sampling support hwmon: (lm90) simplify getting the adapter of a client hwmon: (asus_atk0110) no need to check return value of debugfs_create functions hwmon: (max6650) Fix minor formatting issues hwmon: (max6650) Improve error handling in max6650_update_device hwmon: (max6650) Read non-volatile registers only once hwmon: (max6650) Convert to use devm_hwmon_device_register_with_info hwmon: (max6650) Simplify alarm handling hwmon: (max6650) Cache alarm_en register hwmon: (max6650) Declare valid as boolean ...
2019-07-08Merge branch 'x86-topology-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-18/+18
Pull x86 topology updates from Ingo Molnar: "Implement multi-die topology support on Intel CPUs and expose the die topology to user-space tooling, by Len Brown, Kan Liang and Zhang Rui. These changes should have no effect on the kernel's existing understanding of topologies, i.e. there should be no behavioral impact on cache, NUMA, scheduler, perf and other topologies and overall system performance" * 'x86-topology-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/rapl: Cosmetic rename internal variables in response to multi-die/pkg support perf/x86/intel/uncore: Cosmetic renames in response to multi-die/pkg support hwmon/coretemp: Cosmetic: Rename internal variables to zones from packages thermal/x86_pkg_temp_thermal: Cosmetic: Rename internal variables to zones from packages perf/x86/intel/cstate: Support multi-die/package perf/x86/intel/rapl: Support multi-die/package perf/x86/intel/uncore: Support multi-die/package topology: Create core_cpus and die_cpus sysfs attributes topology: Create package_cpus sysfs attribute hwmon/coretemp: Support multi-die/package powercap/intel_rapl: Update RAPL domain name and debug messages thermal/x86_pkg_temp_thermal: Support multi-die/package powercap/intel_rapl: Support multi-die/package powercap/intel_rapl: Simplify rapl_find_package() x86/topology: Define topology_logical_die_id() x86/topology: Define topology_die_id() cpu/topology: Export die_id x86/topology: Create topology_max_die_per_package() x86/topology: Add CPUID.1F multi-die/package support
2019-07-08hwmon: (ina3221) Add of_node_put() before returnNishka Dasgupta1-1/+3
Each iteration of for_each_child_of_node puts the previous node, but in the case of a return from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the return. Issue found with Coccinelle. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Link: https://lore.kernel.org/r/20190706132130.3129-1-nishkadg.linux@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-08hwmon: (gpio-fan) fix sysfs notifications and udev events for gpio-fan alarmsChristian Schneider1-2/+2
sysfs_notify() and kobject_uevent() are passed the wrong device. fan_data->hwmon_dev needs to be passed, so that sysfs notification goes to right place and generated uevent has the right information Signed-off-by: Christian Schneider <cschneider@radiodata.biz> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-08hwmon: (gpio-fan) move fan_alarm_init after devm_hwmon_device_register_with_groupsChristian Schneider1-7/+7
This makes it possible to use the hwmon_dev in fan_alarm_notify(). Otherwise it would be possible, that a interupt arrives and fan_alarm_notify() is executed, before hwmon_dev is initialized. Signed-off-by: Christian Schneider <cschneider@radiodata.biz> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-08hwmon: (lm90) Introduce function to update configuration registerGuenter Roeck1-49/+40
The code to update the configuration register is repeated several times. Move it into a separate function. At the same time, un-inline lm90_select_remote_channel() and leave it up to the compiler to decide what to do with it. Also remove the 'client' argument from lm90_select_remote_channel() and from lm90_write_convrate() and take it from struct lm90_data instead where needed. This patch reduces code size by more than 800 bytes on x86_64. Cc: Boyang Yu <byu@arista.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-08hwmon: (lm90) Cache configuration register valueGuenter Roeck1-31/+28
The configuration register does not change on its own. Yet, it is read in various locations, modified, and written back. Simplify and optimize the code by caching its value and by only writing it back when needed. Cc: Boyang Yu <byu@arista.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-08hwmon: (lm90) Fix max6658 sporadic wrong temperature readingBoyang Yu1-4/+38
max6658 may report unrealistically high temperature during the driver initialization, for which, its overtemp alarm pin also gets asserted. For certain devices implementing overtemp protection based on that pin, it may further trigger a reset to the device. By reproducing the problem, the wrong reading is found to be coincident with changing the conversion rate. To mitigate this issue, set the stop bit before changing the conversion rate and unset it thereafter. After such change, the wrong reading is not reproduced. Apply this change only to the max6657 kind for now, controlled by flag LM90_PAUSE_ON_CONFIG. Signed-off-by: Boyang Yu <byu@arista.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-08hwmon: (nct7904) Changes comments in probe function.amy.shih1-2/+2
Linux style for comments is the C89 "/* ... */" style, changes the comments to Linux style. Signed-off-by: amy.shih <amy.shih@advantech.com.tw> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-08hwmon: (nct7904) Add error handling in probe function.amy.shih1-5/+18
When register read and write operations return errors, needs to add error handling. Signed-off-by: amy.shih <amy.shih@advantech.com.tw> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-07-03Merge tag 'fsi-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi into char-misc-nextGreg Kroah-Hartman2-2/+3
Joel writes: FSI changes for 5.3 - Add MAINTAINERS entry. There is now a git tree and a mailing list/patchwork for collecting FSI patches - Bug fix for error driver registration error paths - Correction for the OCC hwmon driver to meet the spec * tag 'fsi-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi: fsi/core: Fix error paths on CFAM init OCC: FSI and hwmon: Add sequence numbering MAINTAINERS: Add FSI subsystem
2019-07-03OCC: FSI and hwmon: Add sequence numberingEddie James2-2/+3
Sequence numbering of the commands submitted to the OCC is required by the OCC interface specification. Add sequence numbering and check for the correct sequence number on the response. Signed-off-by: Eddie James <eajames@linux.ibm.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Lei YU <mine260309@gmail.com> Signed-off-by: Joel Stanley <joel@jms.id.au>
2019-06-23hwmon: Convert remaining drivers to use SPDX identifierGuenter Roeck2-19/+1
This gets rid of the unnecessary license boilerplate, and avoids having to deal with individual patches one by one. No functional changes intended. Reviewed-by: Corentin Labbe <clabbe.montjoie@gmail.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Fix unused variable warningArnd Bergmann1-10/+9
The newly added variable is only used in an #if block: drivers/hwmon/max6650.c: In function 'max6650_probe': drivers/hwmon/max6650.c:766:33: error: unused variable 'cooling_dev' [-Werror=unused-variable] Change the #if to if() so the compiler can see what is actually going on. Fixes: a8463754a5a9 ("hwmon: (max6650) Use devm function to register thermal device") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (pmbus/adm1275) Fix power sampling supportGuenter Roeck1-19/+65
Not every chip supported by this driver supports setting the number of samples for power averaging. Also, the power monitoring register is not always a 16-bit register, and the configuration bits used for voltage sampling are different depending on the register width. Some conditional code is needed to fix the problem. On top of all that, the compiler complains about problems with FIELD_GET and FIELD_PREP macros if the file is built with W=1. Avoid using those macros to silence the warning. Cc: Krzysztof Adamski <krzysztof.adamski@nokia.com> Cc: Alexander Sverdlin <alexander.sverdlin@nokia.com> Reviewed-by: Krzysztof Adamski <krzysztof.adamski@nokia.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (lm90) simplify getting the adapter of a clientWolfram Sang1-1/+1
We have a dedicated pointer for that, so use it. Much easier to read and less computation involved. Reported-by: Peter Rosin <peda@axentia.se> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (asus_atk0110) no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-20/+3
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Luca Tettamanti <kronos.it@gmail.com> Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Fix minor formatting issuesGuenter Roeck1-5/+4
CHECK: struct mutex definition without comment CHECK: Alignment should match open parenthesis Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Improve error handling in max6650_update_deviceGuenter Roeck1-7/+24
Pass errors from i2c_smbus_read_byte_data() back to the caller of max6650_update_device(). Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Read non-volatile registers only onceGuenter Roeck1-8/+15
Only tachometer and alarm status registers are modified by the chip. All other registers only need to be read only once, and reading them repeatedly does not add any value. Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Convert to use devm_hwmon_device_register_with_infoGuenter Roeck1-261/+247
Convert driver to use devm_hwmon_device_register_with_info to simplify the code and to reduce its size. Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Simplify alarm handlingGuenter Roeck1-6/+3
Instead of re-reading the alarm register after reporting an alarm, mark cached values as invalid. While this results in always reading all data on subsequent reads, it is quite unlikely that such reads will actually happen before the cache times out. The upside is avoiding unnecessary unconditional i2c read operations. Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Cache alarm_en registerGuenter Roeck1-3/+9
The alarm_en register is read each time the is_visible function is called. Since it is a configuration register, this is completely unnecessary. Read it once and cache its value. Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Declare valid as booleanGuenter Roeck1-2/+2
Declare valid as boolean to match its use case. Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Improve error handling in max6650_init_clientGuenter Roeck1-19/+24
Do not overwrite errors reported from i2c functions, and don't ignore any errors. Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Introduce pwm_to_dac and dac_to_pwmGuenter Roeck1-28/+27
Consolidate conversion from pwm value to dac value and from dac value to pwm value into helper functions. While doing this, only update the cached dac value if writing it to the chip was successful after an update. Also, put macro argument of DIV_FROM_REG() into (), and simplify return statement of max6650_set_cur_state(). Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (max6650) Use devm function to register thermal deviceGuenter Roeck1-20/+7
Use devm_thermal_of_cooling_device_register to register the thermal cooling device. This lets us drop the remove function. At the same time, use 'dev' variable in probe function consistently. Cc: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (core) Add comment describing how hwdev is freed in error pathGuenter Roeck1-0/+6
The hwmon core registers the hwmon device before adding sensors to the thermal core. If that fails, the hwmon device is released and an error is returned to the caller. From the code flow, it appears to be necessary to free struct hwmon_device *, allocated with kzalloc(), in that situation. This is incorrect, since the data structure will be freed automatically in hwmon_dev_release() when device_unregister() is called. This used to result in a double free, which was found and fixed with commit 74e3512731bd ("hwmon: (core) Fix double-free in __hwmon_device_register()"). This is, however, not obvious; any reader may erroneously conclude that the data structure is not freed. Add comment explaining why kfree() is not necessary in this situation. Reported-by: Eduardo Valentin <eduval@amazon.com> Cc: Eduardo Valentin <eduval@amazon.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (smsc47m1) fix (suspicious) outside array bounds warningsMasahiro Yamada1-0/+2
Kbuild test robot reports outside array bounds warnings. This is reproducible for ARCH=sh allmodconfig with the kernel.org toolchains available at: https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/8.1.0/x86_64-gcc-8.1.0-nolibc-sh4-linux.tar.xz CC [M] drivers/hwmon/smsc47m1.o drivers/hwmon/smsc47m1.c: In function 'fan_div_store': drivers/hwmon/smsc47m1.c:370:49: warning: array subscript [0, 2] is outside array bounds of 'u8[3]' {aka 'unsigned char[3]'} [-Warray-bounds] tmp = 192 - (old_div * (192 - data->fan_preload[nr]) ~~~~~~~~~~~~~~~~~^~~~ drivers/hwmon/smsc47m1.c:372:19: warning: array subscript [0, 2] is outside array bounds of 'u8[3]' {aka 'unsigned char[3]'} [-Warray-bounds] data->fan_preload[nr] = clamp_val(tmp, 0, 191); ~~~~~~~~~~~~~~~~~^~~~ drivers/hwmon/smsc47m1.c:373:53: warning: array subscript [0, 2] is outside array bounds of 'const u8[3]' {aka 'const unsigned char[3]'} [-Warray-bounds] smsc47m1_write_value(data, SMSC47M1_REG_FAN_PRELOAD[nr], ~~~~~~~~~~~~~~~~~~~~~~~~^~~~ Looking at the code, I believe these are false positives. While it is ridiculous to patch our driver to make the insane compiler happy, clarifying the unreachable path will be helpful not only for compilers but also for humans. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [groeck: Use BUG() instead of unreachable() to make objtool happy] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (pmbus) Add Infineon IRPS5401 driverRobert Hancock3-0/+77
Add a driver to support the Infineon IRPS5401 PMIC. This chip has 5 pages corresponding to 4 switching outputs and one linear (LDO) output. The switching and LDO outputs have slightly different supported parameters. Signed-off-by: Robert Hancock <hancock@sedsystems.ca> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (nct7904) Fix the incorrect value of tcpu_mask in nct7904_data struct.amy.shih1-9/+63
Detect the multi-function of voltage, thermal diode and thermistor from register VT_ADC_MD_REG to set value of tcpu_mask in nct7904_data struct, set temp[1-5]_input the input values TEMP_CH1~4 and LTD of temperature. Set temp[6~13]_input the input values of DTS temperature that correspond to sensors TCPU1~8. Signed-off-by: amy.shih <amy.shih@advantech.com.tw> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (pmbus) Add Infineon PXE1610 VR driverVijay Khemka3-0/+149
Added pmbus driver for the new device Infineon pxe1610 voltage regulator. It also supports similar family device PXE1110 and PXM1310. Signed-off-by: Vijay Khemka <vijaykhemka@fb.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (occ) Add temp sensor value checkAlexander Soldatov1-0/+6
The occ driver supports two formats for the temp sensor value. The OCC firmware for P8 supports only the first format, for which no range checking or error processing is performed in the driver. Inspecting the OCC sources for P8 reveals that OCC may send a special value 0xFFFF to indicate that a sensor read timeout has occurred, see https://github.com/open-power/occ/blob/master_p8/src/occ/cmdh/cmdh_fsp_cmds.c#L395 That situation wasn't handled in the driver. This patch adds invalid temp value check for the sensor data format 1 and handles it the same way as it is done for the format 2, where EREMOTEIO is reported for this case. Signed-off-by: Alexander Soldatov <a.soldatov@yadro.com> Signed-off-by: Alexander Amelkin <a.amelkin@yadro.com> Reviewed-by: Alexander Amelkin <a.amelkin@yadro.com> Cc: Edward A. James <eajames@us.ibm.com> Cc: Joel Stanley <joel@jms.id.au> Reviewed-by: Eddie James <eajames@linux.ibm.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (pmbus/adm1275) support PMBUS_VIRT_*_SAMPLESAdamski, Krzysztof (Nokia - PL/Wroclaw)1-1/+58
The device supports setting the number of samples for averaging the measurements. There are two separate settings - PWR_AVG for averaging PIN and VI_AVG for averaging VIN/VAUX/IOUT, both being part of PMON_CONFIG register. The values are stored as exponent of base 2 of the actual number of samples that will be taken. Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> [groeck: Dropped unused variables] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (pwm-fan) Check return value from devm_add_action_or_resetGuenter Roeck1-3/+7
devm_add_action_or_reset() can fail due to a memory allocation failure. Check for it and return the error if that happens. Fixes: 37bcec5d9f71 ("hwmon: (pwm-fan) Use devm_thermal_of_cooling_device_register") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-23hwmon: (gpio-fan) Check return value from devm_add_action_or_resetGuenter Roeck1-1/+3
devm_add_action_or_reset() can fail due to a memory allocation failure. Check for it and return the error if that happens. Fixes: 9534784550ab ("hwmon: (gpio-fan) Use devm_thermal_of_cooling_device_register") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner4-16/+4
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-17Merge tag 'scmi-updates-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/driversOlof Johansson1-0/+48
ARM SCMI updates/fixes for v5.3 1. Correction to ARM document ID referred in SCMI protocol binding 2. Fix to correct bitfield definitions for SENSOR_DESC attributes which otherwise will calculate sensor values on wrong scale 3. Adds the missing rate_discrete flag setting so that discrete clocks are handled correctly. Without this fix it assumes continuous range which is incorrect 4. Adds support to read and scale the sensor values based on the factor read from the firmware * tag 'scmi-updates-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: hwmon: scmi: Scale values to target desired HWMON units firmware: arm_scmi: fetch and store sensor scale firmware: arm_scmi: update rate_discrete in clock_describe_rates_get firmware: arm_scmi: fix bitfield definitions for SENSOR_DESC attributes dt-bindings: arm: fix the document ID for SCMI protocol documentation Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-12hwmon: scmi: Scale values to target desired HWMON unitsFlorian Fainelli1-0/+48
If the SCMI firmware implementation is reporting values in a scale that is different from the HWMON units, we need to scale up or down the value according to how far apart they are. Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> [sudeep.holla: added check of scale = 0 for early exit in scmi_hwmon_scale] Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2019-06-08Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds21-150/+21
Pull yet more SPDX updates from Greg KH: "Another round of SPDX header file fixes for 5.2-rc4 These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being added, based on the text in the files. We are slowly chipping away at the 700+ different ways people tried to write the license text. All of these were reviewed on the spdx mailing list by a number of different people. We now have over 60% of the kernel files covered with SPDX tags: $ ./scripts/spdxcheck.py -v 2>&1 | grep Files Files checked: 64533 Files with SPDX: 40392 Files with errors: 0 I think the majority of the "easy" fixups are now done, it's now the start of the longer-tail of crazy variants to wade through" * tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (159 commits) treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 448 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 443 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 442 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 435 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 433 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 431 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 430 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429 ...
2019-06-05hwmon: (pmbus/core) Treat parameters as paged if on multiple pagesRobert Hancock1-4/+30
Some chips have attributes which exist on more than one page but the attribute is not presently marked as paged. This causes the attributes to be generated with the same label, which makes it impossible for userspace to tell them apart. Marking all such attributes as paged would result in the page suffix being added regardless of whether they were present on more than one page or not, which might break existing setups. Therefore, we add a second check which treats the attribute as paged, even if not marked as such, if it is present on multiple pages. Fixes: b4ce237b7f7d ("hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers") Signed-off-by: Robert Hancock <hancock@sedsystems.ca> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-05hwmon: (pmbus/core) mutex_lock write in pmbus_set_samplesAdamski, Krzysztof (Nokia - PL/Wroclaw)1-0/+3
update_lock is a mutex intended to protect write operations. It was not taken, however, when _pmbus_write_word_data is called from pmbus_set_samples() function which may cause problems especially when some PMBUS_VIRT_* operation is implemented as a read-modify-write cycle. This patch makes sure the lock is held during the operation. Fixes: 49c4455dccf2 ("hwmon: (pmbus) Introduce PMBUS_VIRT_*_SAMPLES registers") Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> [groeck: Declared and initialized missing 'data' variable] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-05hwmon: (core) add thermal sensors only if dev->of_node is presentEduardo Valentin1-1/+1
Drivers may register to hwmon and request for also registering with the thermal subsystem (HWMON_C_REGISTER_TZ). However, some of these driver, e.g. marvell phy, may be probed from Device Tree or being dynamically allocated, and in the later case, it will not have a dev->of_node entry. Registering with hwmon without the dev->of_node may result in different outcomes depending on the device tree, which may be a bit misleading. If the device tree blob has no 'thermal-zones' node, the *hwmon_device_register*() family functions are going to gracefully succeed, because of-thermal, *thermal_zone_of_sensor_register() return -ENODEV in this case, and the hwmon error path handles this error code as success to cover for the case where CONFIG_THERMAL_OF is not set. However, if the device tree blob has the 'thermal-zones' entry, the *hwmon_device_register*() will always fail on callers with no dev->of_node, propagating -EINVAL. If dev->of_node is not present, calling of-thermal does not make sense. For this reason, this patch checks first if the device has a of_node before going over the process of registering with the thermal subsystem of-thermal interface. And in this case, when a caller of *hwmon_device_register*() with HWMON_C_REGISTER_TZ and no dev->of_node will still register with hwmon, but not with the thermal subsystem. If all the hwmon part bits are in place, the registration will succeed. Fixes: d560168b5d0f ("hwmon: (core) New hwmon registration API") Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Eduardo Valentin <eduval@amazon.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441Thomas Gleixner7-28/+7
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>