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2021-11-10rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPTAlexandre Belloni1-1/+1
Switch from uie_unsupported to RTC_FEATURE_UPDATE_INTERRUPT Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211107225458.111068-4-alexandre.belloni@bootlin.com
2021-11-10rtc: rv3032: let the core handle the alarm resolutionAlexandre Belloni1-8/+1
Let the RTC core know the resolution of the alarm is a minute. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211107225458.111068-3-alexandre.belloni@bootlin.com
2021-11-10rtc: s35390a: let the core handle the alarm resolutionAlexandre Belloni1-5/+2
Tell the RTC core UIE are not supported because the resolution of the alarm is a minute. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211107225458.111068-2-alexandre.belloni@bootlin.com
2021-11-10rtc: handle alarms with a minute resolutionAlexandre Belloni1-1/+11
Handle alarms with a minute resolution in the core. Until now drivers have been open coding the seconds part removal and have been doing that wrongly. Most of them are rounding up which means the allow the system to miss deadlines. So, round down and let __rtc_set_alarm return immediately if the time has already passed. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211107225458.111068-1-alexandre.belloni@bootlin.com
2021-11-10rtc: pcf85063: silence cppcheck warningAlexandre Belloni1-1/+1
cppcheck warnings: (new ones prefixed by >>) >> drivers/rtc/rtc-pcf85063.c:292:40: warning: Clarify calculation precedence for '&' and '?'. [clarifyCalculation] status = status & PCF85063_REG_SC_OS ? RTC_VL_DATA_INVALID : 0; Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211107225349.110707-1-alexandre.belloni@bootlin.com
2021-11-10rtc: rv8803: fix writing back ctrl in flag registerDominique Martinet1-2/+2
ctrl is set from read_regs(..FLAG, 2, ctrl), so ctrl[0] is FLAG and ctrl[1] is the CTRL register. Use ctrl[0] to write back to the FLAG register as appropriate. Signed-off-by: Dominique Martinet <dominique.martinet@atmark-techno.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211101013400.325855-1-dominique.martinet@atmark-techno.com
2021-10-24rtc: s3c: Add time rangeSam Protsenko1-5/+2
This RTC driver starts counting from 2000 to avoid Y2K problem. Also it only supports 100 years range for all RTCs. Provide that info to RTC framework. Also remove check for 100 years range in s3c_rtc_settime(), as RTC core won't pass any invalid values to the driver, now that correct range is set. Here is the rationale on 100 years range limitation. Info on different Samsung RTCs (credit goes to Krzysztof Kozlowski): - All S3C chips have only 8-bit wide year register (can store 100 years range in BCD format) - S5Pv210 and Exynos chips have 12-bit year register (can store 1000 years range in BCD format) But in reality we usually can't make use of those 12 bits either: - RTCs might think that both 2000 and 2100 years are leap years. So when the YEAR register is 0, RTC goes from 28 Feb to 29 Feb, and when the YEAR register is 100, RTC also goes from 28 Feb to 29 Feb. This is of course incorrect: RTC breaks leap year criteria, which breaks the time contiguity, which leads to inability to use the RTC after year of 2099. It was found for example on Exynos850 SoC. - Despite having 12 bits for holding the year value, RTC might overflow the year value internally much earlier. For example, on Exynos850 the RTC overflows when YEAR=159, making the next YEAR=0. This way RTC actually has range of 160 years, not 1000 as one may think. All that said, there is no sense in trying to increase the time range for more than 100 years on RTCs that seem capable of that. It also doesn't have too much practical value -- current hardware will be probably obsolete by 2100. Tested manually on Exynos850 RTC: $ date -s "1999-12-31 23:59:50" $ hwclock -w -f /dev/rtc0 $ date -s "2100-01-01 00:00:00" $ hwclock -w -f /dev/rtc0 $ date -s "2000-01-01 00:00:00" $ hwclock -w -f /dev/rtc0 $ hwclock -r -f /dev/rtc0 $ date -s "2099-12-31 23:59:50" $ hwclock -w -f /dev/rtc0 $ hwclock -r -f /dev/rtc0 Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211021202256.28517-4-semen.protsenko@linaro.org
2021-10-24rtc: s3c: Extract read/write IO into separate functionsSam Protsenko1-37/+61
Create dedicated functions for I/O operations and BCD conversion. It can be useful to separate those from representation conversion and other stuff found in RTC callbacks. This patch does not introduce any functional changes, it's merely refactoring change. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211021202256.28517-3-semen.protsenko@linaro.org
2021-10-24rtc: s3c: Remove usage of devm_rtc_device_register()Sam Protsenko1-4/+7
devm_rtc_device_register() is deprecated. Use devm_rtc_allocate_device() and devm_rtc_register_device() API instead. This change doesn't change the behavior, but allows for further improvements. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211021202256.28517-2-semen.protsenko@linaro.org
2021-10-24rtc: tps80031: Remove driverDmitry Osipenko3-333/+0
Driver was upstreamed in 2013 and never got a user, remove it. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211021192258.21968-2-digetx@gmail.com
2021-10-24rtc: sun6i: Allow probing without an early clock providerSamuel Holland1-2/+11
Some SoCs have an RTC supported by this RTC driver, but do not have an early clock provider declared here. Currently, this prevents the RTC driver from probing, because it expects a global struct to already be allocated. Fix probing the driver by copying the missing pieces from the clock provider setup function, replacing them with the devm variants. Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210928080335.36706-7-samuel@sholland.org
2021-10-18rtc: pcf8523: add BSM supportAlexandre Belloni1-6/+97
Backup Switch Mode allows to select the strategy to use to switch from the main power supply to the backup power supply. As before, the driver will switch from standby mode to level mode but now only when it has never been set. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018153651.82069-5-alexandre.belloni@bootlin.com
2021-10-18rtc: pcf8523: allow usage on ACPI platformsAlexandre Belloni1-3/+1
Always provide an OF table to ensure ACPI platforms can also use this driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018153651.82069-4-alexandre.belloni@bootlin.com
2021-10-18rtc: pcf8523: remove unecessary ifdeferyAlexandre Belloni1-2/+0
If CONFIG_OF is not defined, of_property_read_bool will return false which is our default value Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018153651.82069-3-alexandre.belloni@bootlin.com
2021-10-18rtc: pcf8523: always compile pcf8523_rtc_ioctlAlexandre Belloni1-4/+0
Compiling out pcf8523_rtc_ioctl saves about 5% of the generated machine code. However, it certainly never happens as the RTC character device interface is the most useful one and is probably always compiled in. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018153651.82069-2-alexandre.belloni@bootlin.com
2021-10-18rtc: pcf8523: switch to regmapAlexandre Belloni2-219/+85
Use regmap to access the RTC registers, this is a huge reduction in code lines and generated code. Values on ARMv7: text data bss dec hex 5180 132 0 5312 14c0 before 3900 132 0 4032 fc0 after Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018153651.82069-1-alexandre.belloni@bootlin.com
2021-10-18rtc: expose RTC_FEATURE_UPDATE_INTERRUPTAlexandre Belloni2-1/+6
Set RTC_FEATURE_UPDATE_INTERRUPT by default and clear it when it is not supported. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018152337.78732-1-alexandre.belloni@bootlin.com
2021-10-18rtc: pcf8523: avoid reading BLF in pcf8523_rtc_read_timeAlexandre Belloni1-22/+4
BLF, battery low doesn't mean the time is imprecise or invalid, it simply mean the backup battery has to be replaced. This information can be read using the VL_READ ioctl. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211015192400.818254-1-alexandre.belloni@bootlin.com
2021-10-18rtc: rv3032: allow setting BSMAlexandre Belloni1-0/+76
Backup Switch Mode is currently set properly when the trickle charger is enabled. However, in the case of a non-rechargeable battery, it is necessary to be able to enable it, only allow that when the trickle charger is disabled. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-8-alexandre.belloni@bootlin.com
2021-10-18rtc: rv3028: add BSM supportAlexandre Belloni1-0/+74
Backup Switch Mode controls how the RTC decides when to switch to the backup power supply. As it is disabled by default, provide a way to enable and configure it. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-7-alexandre.belloni@bootlin.com
2021-10-18rtc: add BSM parameterAlexandre Belloni1-2/+8
BSM or Backup Switch Mode is a common feature on RTCs, allowing to select how the RTC will decide when to switch from its primary power supply to the backup power supply. It is necessary to be able to set it from userspace as there are uses cases where it has to be done dynamically. Supported values are: RTC_BSM_DISABLED: disabled RTC_BSM_DIRECT: switching will happen as soon as Vbackup > Vdd RTC_BSM_LEVEL: switching will happen around a threshold, usually with an hysteresis RTC_BSM_STANDBY: switching will not happen until Vdd > Vbackup, this is useful to ensure the RTC doesn't draw any power until the device is first powered on. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-6-alexandre.belloni@bootlin.com
2021-10-18rtc: add correction parameterAlexandre Belloni1-0/+19
Add a new parameter allowing the get and set the correction using ioctls instead of just sysfs. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-5-alexandre.belloni@bootlin.com
2021-10-18rtc: expose correction featureAlexandre Belloni1-0/+3
Add a new feature for RTCs able to correct the oscillator imprecision. This is also called offset or trimming. Such drivers have a .set_offset callback, use that to set the feature bit from the core. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-4-alexandre.belloni@bootlin.com
2021-10-18rtc: add parameter ioctlAlexandre Belloni1-0/+40
Add an ioctl allowing to get and set extra parameters for an RTC. For now, only handle getting available features. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211018151933.76865-3-alexandre.belloni@bootlin.com
2021-10-15rtc: pcf85063: Always clear EXT_TEST from set_timePhil Elwell1-0/+2
Power-on reset after the insertion of a battery does not always complete successfully, leading to corrupted register content. The EXT_TEST bit will stop the clock from running, but currently the driver will never recover. Safely handle the erroneous state by clearing EXT_TEST as part of the usual set_time method. Signed-off-by: Phil Elwell <phil@raspberrypi.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211015111208.1757110-1-phil@raspberrypi.com
2021-10-15rtc: pcf85063: add support for fixed clockAlexander Stein1-0/+12
TQ-Systems' TQMa8Mx module (SoM) uses a pcf85063 as RTC. The default output is 32768Hz. This is to provide the i.MX8M CKIL clock. Once the RTC driver is probed, the clock is disabled and all i.MX8M functionality depending on the 32 KHz clock will halt. In our case the whole system halts and a power cycle is required. Referencing the pcf85063 directly results in a deadlock. The kernel will see, that i.MX8M system clock needs the RTC clock and do probe deferral. But the i.MX8M I2C module never becomes usable without the i.MX8M CKIL clock and thus the RTC's clock will not be probed. So from the kernel's perspective this is a chicken-and-egg problem. Technically everything is fine by not touching anything, since the RTC clock correctly enables the clock on reset (i.e. on battery backup power loss). A workaround for this issue is describing the square wave pin as fixed-clock, which is registered early and basically how this pin is used on the i.MX8M. This addresses the exact same issue as in commit f765e349c3e1 ("rtc: m41t80: add support for fixed clock"). Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> [Fixed return value 0 -> NULL] Link: https://lore.kernel.org/r/20211013074954.997445-1-alexander.stein@ew.tq-group.com
2021-10-15rtc: rv3032: fix error handling in rv3032_clkout_set_rate()Dan Carpenter1-2/+2
Do not call rv3032_exit_eerd() if the enter function fails but don't forget to call the exit when the enter succeeds. Fixes: 2eeaa532acca ("rtc: rv3032: Add a driver for Microcrystal RV-3032") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211012101028.GT2083@kadam
2021-10-15rtc: class: check return value when calling dev_set_name()Yang Yingliang1-1/+3
I got a null-ptr-deref report when doing fault injection test: BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:strcmp+0xc/0x20 Call Trace: __devm_rtc_register_device.cold.7+0x16a/0x2df rv3029_probe+0x4b1/0x770 [rtc_rv3029c2] rv3029_i2c_probe+0x141/0x180 [rtc_rv3029c2] i2c_device_probe+0xa07/0xbb0 really_probe+0x285/0xc30 If dev_set_name() fails, dev_name() is null, it causes null-ptr-deref, we need check the return value of dev_set_name(). Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211012041629.2504158-1-yangyingliang@huawei.com
2021-10-15rtc: class: don't call cdev_device_del() when cdev_device_add() failedYang Yingliang1-3/+6
I got a null-ptr-deref report when doing fault injection test: general protection fault, probably for non-canonical address 0xdffffc0000000022: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000110-0x0000000000000117] RIP: 0010:device_del+0x132/0xdc0 Call Trace: cdev_device_del+0x1a/0x80 devm_rtc_unregister_device+0x37/0x80 release_nodes+0xc3/0x3b0 If cdev_device_add() fails, 'dev->p' is not set, it causes null-ptr-deref when calling cdev_device_del(). Registering character device is optional, we don't return error code here, so introduce a new flag 'RTC_NO_CDEV' to indicate if it has character device, cdev_device_del() is called when this bit is not set. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20211011132114.3663509-1-yangyingliang@huawei.com
2021-10-02rtc: m41t80: return NULL rather than a plain 0 integerColin Ian King1-1/+1
Function m41t80_sqw_register_clk returns a pointer to struct clk, so returning a plain 0 integer isn't good practice. Fix this by returning a NULL instead. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210925223441.182673-1-colin.king@canonical.com
2021-10-02rtc: msc313: Fix unintentional sign extension issues with left shift of a u16Colin Ian King1-2/+2
Shifting the u16 value returned by readw by 16 bits to the left will be promoted to a 32 bit signed int and then sign-extended to an unsigned long. If the top bit of the readw is set then the shifted value will be sign extended and the top 32 bits of the result will be set. Fixes: be7d9c9161b9 ("rtc: Add support for the MSTAR MSC313 RTC") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210928134654.991923-1-colin.king@canonical.com
2021-10-02rtc: mcp795: Add SPI ID tableMark Brown1-0/+7
Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding an id_table listing the SPI IDs for everything. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210927130240.33693-1-broonie@kernel.org
2021-09-27rtc: msc313: fix missing includeAlexandre Belloni1-0/+1
The driver needs io.h Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210927063724.312687-1-alexandre.belloni@bootlin.com
2021-09-26rtc: Add support for the MSTAR MSC313 RTCDaniel Palmer3-0/+269
This adds support for the RTC block on the Mstar MSC313e SoCs and newer. Signed-off-by: Daniel Palmer <daniel@0x0f.com> Co-developed-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Romain Perier <romain.perier@gmail.com> Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210823171613.18941-3-romain.perier@gmail.com
2021-09-26rtc: rx6110: 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. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210918213553.14514-1-wsa+renesas@sang-engineering.com
2021-09-26rtc: s5m: drop unneeded MODULE_ALIASKrzysztof Kozlowski1-1/+0
The MODULE_DEVICE_TABLE already creates proper alias for platform driver. Having another MODULE_ALIAS causes the alias to be duplicated. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210916164604.134924-1-krzysztof.kozlowski@canonical.com
2021-09-26rtc: omap: drop unneeded MODULE_ALIASKrzysztof Kozlowski1-1/+0
The MODULE_DEVICE_TABLE already creates proper alias for platform driver. Having another MODULE_ALIAS causes the alias to be duplicated. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210916164513.134725-1-krzysztof.kozlowski@canonical.com
2021-09-26rtc: pcf2123: Add SPI ID tableMark Brown1-0/+9
Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding an id_table listing the SPI IDs for everything. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210923194922.53386-4-broonie@kernel.org
2021-09-26rtc: ds1390: Add SPI ID tableMark Brown1-0/+7
Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding an id_table listing the SPI IDs for everything. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210923194922.53386-3-broonie@kernel.org
2021-09-26rtc: ds1302: Add SPI ID tableMark Brown1-0/+7
Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding an id_table listing the SPI IDs for everything. Fixes: 96c8395e2166 ("spi: Revert modalias changes") Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210923194922.53386-2-broonie@kernel.org
2021-09-13Merge tag 'auxdisplay-for-linus-v5.15-rc1' of git://github.com/ojeda/linuxLinus Torvalds4-20/+6
Pull auxdisplay updates from Miguel Ojeda: "An assortment of improvements for auxdisplay: - Replace symbolic permissions with octal permissions (Jinchao Wang) - ks0108: Switch to use module_parport_driver() (Andy Shevchenko) - charlcd: Drop unneeded initializers and switch to C99 style (Andy Shevchenko) - hd44780: Fix oops on module unloading (Lars Poeschel) - Add I2C gpio expander example (Ralf Schlatterbeck)" * tag 'auxdisplay-for-linus-v5.15-rc1' of git://github.com/ojeda/linux: auxdisplay: Replace symbolic permissions with octal permissions auxdisplay: ks0108: Switch to use module_parport_driver() auxdisplay: charlcd: Drop unneeded initializers and switch to C99 style auxdisplay: hd44780: Fix oops on module unloading auxdisplay: Add I2C gpio expander example
2021-09-12Merge tag 'char-misc-5.15-rc1-lkdtm' of ↵Linus Torvalds2-11/+27
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull misc driver fix from Greg KH: "Here is a single patch for 5.15-rc1, for the lkdtm misc driver. It resolves a build issue that many people were hitting with your current tree, and Kees and others felt would be good to get merged before -rc1 comes out, to prevent them from having to constantly hit it as many development trees restart on -rc1, not older -rc releases. It has NOT been in linux-next, but has passed 0-day testing and looks 'obviously correct' when reviewing it locally :)" * tag 'char-misc-5.15-rc1-lkdtm' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: lkdtm: Use init_uts_ns.name instead of macros
2021-09-12Merge tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmiLinus Torvalds1-12/+11
Pull IPMI updates from Corey Minyard: "A couple of very minor fixes for style and rate limiting. Nothing big, but probably needs to go in" * tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmi: char: ipmi: use DEVICE_ATTR helper macro ipmi: rate limit ipmi smi_event failure message
2021-09-12Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds24-283/+3343
Pull virtio updates from Michael Tsirkin: - vduse driver ("vDPA Device in Userspace") supporting emulated virtio block devices - virtio-vsock support for end of record with SEQPACKET - vdpa: mac and mq support for ifcvf and mlx5 - vdpa: management netlink for ifcvf - virtio-i2c, gpio dt bindings - misc fixes and cleanups * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (39 commits) Documentation: Add documentation for VDUSE vduse: Introduce VDUSE - vDPA Device in Userspace vduse: Implement an MMU-based software IOTLB vdpa: Support transferring virtual addressing during DMA mapping vdpa: factor out vhost_vdpa_pa_map() and vhost_vdpa_pa_unmap() vdpa: Add an opaque pointer for vdpa_config_ops.dma_map() vhost-iotlb: Add an opaque pointer for vhost IOTLB vhost-vdpa: Handle the failure of vdpa_reset() vdpa: Add reset callback in vdpa_config_ops vdpa: Fix some coding style issues file: Export receive_fd() to modules eventfd: Export eventfd_wake_count to modules iova: Export alloc_iova_fast() and free_iova_fast() virtio-blk: remove unneeded "likely" statements virtio-balloon: Use virtio_find_vqs() helper vdpa: Make use of PFN_PHYS/PFN_UP/PFN_DOWN helper macro vsock_test: update message bounds test for MSG_EOR af_vsock: rename variables in receive loop virtio/vsock: support MSG_EOR bit processing vhost/vsock: support MSG_EOR bit processing ...
2021-09-11Merge tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-blockLinus Torvalds10-32/+133
Pull block fixes from Jens Axboe: - NVMe pull request from Christoph: - fix nvmet command set reporting for passthrough controllers (Adam Manzanares) - update a MAINTAINERS email address (Chaitanya Kulkarni) - set QUEUE_FLAG_NOWAIT for nvme-multipth (me) - handle errors from add_disk() (Luis Chamberlain) - update the keep alive interval when kato is modified (Tatsuya Sasaki) - fix a buffer overrun in nvmet_subsys_attr_serial (Hannes Reinecke) - do not reset transport on data digest errors in nvme-tcp (Daniel Wagner) - only call synchronize_srcu when clearing current path (Daniel Wagner) - revalidate paths during rescan (Hannes Reinecke) - Split out the fs/block_dev into block/fops.c and block/bdev.c, which has been long overdue. Do this now before -rc1, to avoid annoying conflicts due to this (Christoph) - blk-throtl use-after-free fix (Li) - Improve plug depth for multi-device plugs, greatly increasing md resync performance (Song) - blkdev_show() locking fix (Tetsuo) - n64cart error check fix (Yang) * tag 'block-5.15-2021-09-11' of git://git.kernel.dk/linux-block: n64cart: fix return value check in n64cart_probe() blk-mq: allow 4x BLK_MAX_REQUEST_COUNT at blk_plug for multiple_queues block: move fs/block_dev.c to block/bdev.c block: split out operations on block special files blk-throttle: fix UAF by deleteing timer in blk_throtl_exit() block: genhd: don't call blkdev_show() with major_names_lock held nvme: update MAINTAINERS email address nvme: add error handling support for add_disk() nvme: only call synchronize_srcu when clearing current path nvme: update keep alive interval when kato is modified nvme-tcp: Do not reset transport on data digest errors nvmet: fixup buffer overrun in nvmet_subsys_attr_serial() nvmet: return bool from nvmet_passthru_ctrl and nvmet_is_passthru_req nvmet: looks at the passthrough controller when initializing CAP nvme: move nvme_multi_css into nvme.h nvme-multipath: revalidate paths during rescan nvme-multipath: set QUEUE_FLAG_NOWAIT
2021-09-11Merge tag 'devicetree-fixes-for-5.15-1' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Disable fw_devlinks on x86 DT platforms to fix OLPC - More replacing oneOf+const with enum on a few new schemas - Drop unnecessary type references on Xilinx SPI binding schema * tag 'devicetree-fixes-for-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: spi: dt-bindings: xilinx: Drop type reference on *-bits properties dt-bindings: More use 'enum' instead of 'oneOf' plus 'const' entries of: property: Disable fw_devlink DT support for X86
2021-09-11Merge tag 'clk-for-linus' of ↵Linus Torvalds1-4/+0
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fix from Stephen Boyd: "One patch to fix an unused variable warning in a Qualcomm clk driver" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: gcc-sm6350: Remove unused variable
2021-09-11Merge tag 'rtc-5.15' of ↵Linus Torvalds8-64/+240
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "The broken down time conversion is similar to what is done in the time subsystem since v5.14. The rest is fairly straightforward. Subsystem: - Switch to Neri and Schneider time conversion algorithm Drivers: - rx8025: add rx8035 support - s5m: modernize driver and set range" * tag 'rtc-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: rtc: rx8010: select REGMAP_I2C dt-bindings: rtc: add Epson RX-8025 and RX-8035 rtc: rx8025: implement RX-8035 support rtc: cmos: remove stale REVISIT comments rtc: tps65910: Correct driver module alias rtc: move RTC_LIB_KUNIT_TEST to proper location rtc: lib_test: add MODULE_LICENSE rtc: Improve performance of rtc_time64_to_tm(). Add tests. rtc: s5m: set range rtc: s5m: enable wakeup only when available rtc: s5m: signal the core when alarm are not available rtc: s5m: switch to devm_rtc_allocate_device
2021-09-11Merge tag 'firewire-update' of ↵Linus Torvalds1-4/+0
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewire updates from Stefan Richter: - Migrate the bus snooper driver 'nosy' from PCI to DMA API - Small janitorial cleanup in the IPv4/v6-over-1394 driver [ The 'nosy' change already come in as a different commit through Greg KH in the misc tree back in the previous merge window, so only the cleanup ends up being new to 5.15 - Linus ] * tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: nosy: switch from 'pci_' to 'dma_' API firewire: net: remove unused variable 'guid'
2021-09-11Merge tag 'pwm/for-5.15-rc1' of ↵Linus Torvalds41-439/+258
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "The changes this time around are mostly janitorial in nature. A lot of this is simplifications of drivers using device-managed functions and improving compilation coverage. The Mediatek display PWM driver now supports the atomic API. Cleanups and minor fixes make up the remainder of this set" * tag 'pwm/for-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (54 commits) pwm: mtk-disp: Implement atomic API .get_state() pwm: mtk-disp: Fix overflow in period and duty calculation pwm: mtk-disp: Implement atomic API .apply() pwm: mtk-disp: Adjust the clocks to avoid them mismatch dt-bindings: pwm: rockchip: Add description for rk3568 pwm: Make pwmchip_remove() return void pwm: sun4i: Don't check the return code of pwmchip_remove() pwm: sifive: Don't check the return code of pwmchip_remove() pwm: samsung: Don't check the return code of pwmchip_remove() pwm: renesas-tpu: Don't check the return code of pwmchip_remove() pwm: rcar: Don't check the return code of pwmchip_remove() pwm: pca9685: Don't check the return code of pwmchip_remove() pwm: omap-dmtimer: Don't check the return code of pwmchip_remove() pwm: mtk-disp: Don't check the return code of pwmchip_remove() pwm: imx-tpm: Don't check the return code of pwmchip_remove() pwm: img: Don't check the return code of pwmchip_remove() pwm: cros-ec: Don't check the return code of pwmchip_remove() pwm: brcmstb: Don't check the return code of pwmchip_remove() pwm: atmel-tcb: Don't check the return code of pwmchip_remove() pwm: atmel-hlcdc: Don't check the return code of pwmchip_remove() ...
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