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2025-03-17dt-bindings: rtc: pcf2127: Reference spi-peripheral-props.yamlFabio Estevam1-1/+2
PCF2127 is an SPI device, thus its binding should reference spi-peripheral-props.yaml. Add a reference to spi-peripheral-props.yaml to fix the following dt-schema warning: imx7d-flex-concentrator.dtb: rtc@0: 'spi-max-frequency' does not match any of the regexes: 'pinctrl-[0-9]+' Signed-off-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250317120356.2195670-1-festevam@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: rzn1: implement one-second accuracy for alarmsWolfram Sang1-17/+91
The hardware alarm only supports one-minute accuracy which is coarse and disables UIE usage. Use the 1-second interrupt to achieve per-second accuracy. It is activated once we hit the per-minute alarm. The new feature is optional. When there is no 1-second interrupt, old behaviour with per-minute accuracy is used as before. With this feature, all tests of 'rtctest' are successfully passed. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20250305101038.9933-2-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: pcf50633: RemoveDr. David Alan Gilbert3-292/+0
The pcf50633 was used as part of the OpenMoko devices but the support for its main chip was recently removed in: commit 61b7f8920b17 ("ARM: s3c: remove all s3c24xx support") See https://lore.kernel.org/all/Z8z236h4B5A6Ki3D@gallifrey/ Remove it. Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Link: https://lore.kernel.org/r/20250311014959.743322-3-linux@treblig.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: pm8xxx: implement qcom,no-alarm flag for non-HLOS owned alarmJonathan Marek1-14/+20
Qualcomm x1e80100 firmware sets the ownership of the RTC alarm to ADSP. Thus writing to RTC alarm registers and receiving alarm interrupts is not possible. Add a qcom,no-alarm flag to support RTC on this platform. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20241015004945.3676-2-jonathan@marek.ca [ johan: drop no_alarm flag and restructure probe() ] Tested-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz> Tested-by: Steev Klimaszewski <steev@kali.org> Tested-by: Joel Stanley <joel@jms.id.au> Tested-by: Sebastian Reichel <sre@kernel.org> # Lenovo T14s Gen6 Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20250219134118.31017-5-johan+linaro@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: pm8xxx: mitigate flash wearJohan Hovold1-0/+26
On many Qualcomm platforms the PMIC RTC control and time registers are read-only so that the RTC time can not be updated. Instead an offset needs be stored in some machine-specific non-volatile memory, which the driver can take into account. On machines like the Lenovo ThinkPad X13s the PMIC RTC drifts about one second every 3.5 hours, something which leads to repeated updates of the offset when NTP synchronisation is enabled. Reduce wear of the underlying flash storage (used for UEFI variables) by deferring writes until shutdown in case they appear to be due to clock drift. As an example, deferring writes when the new offset differs up to 30 s from the previous one reduces the number of writes on the X13s during a ten day session with the machine not suspending for more than four days in a row from up to 68 writes (every 3.5 h) to at most two (boot and shutdown). Tested-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz> Tested-by: Steev Klimaszewski <steev@kali.org> Tested-by: Joel Stanley <joel@jms.id.au> Tested-by: Sebastian Reichel <sre@kernel.org> # Lenovo T14s Gen6 Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20250219134118.31017-4-johan+linaro@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: pm8xxx: add support for uefi offsetJohan Hovold2-24/+133
On many Qualcomm platforms the PMIC RTC control and time registers are read-only so that the RTC time can not be updated. Instead an offset needs be stored in some machine-specific non-volatile memory, which the driver can take into account. Add support for storing a 32-bit offset from the GPS time epoch in a UEFI variable so that the RTC time can be set on such platforms. The UEFI variable is 882f8c2b-9646-435f-8de5-f208ff80c1bd-RTCInfo and holds a 12-byte structure where the first four bytes is a GPS time offset in little-endian byte order. Note that this format is not arbitrary as the variable is shared with the UEFI firmware (and Windows). Tested-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz> Tested-by: Steev Klimaszewski <steev@kali.org> Tested-by: Joel Stanley <joel@jms.id.au> Tested-by: Sebastian Reichel <sre@kernel.org> # Lenovo T14s Gen6 Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20250219134118.31017-3-johan+linaro@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17dt-bindings: rtc: qcom-pm8xxx: document qcom,no-alarm flagJonathan Marek1-0/+5
Qualcomm x1e80100 firmware sets the ownership of the RTC alarm to ADSP. Thus writing to RTC alarm registers and receiving alarm interrupts is not possible. Add a qcom,no-alarm flag to support RTC on this platform. Signed-off-by: Jonathan Marek <jonathan@marek.ca> Link: https://lore.kernel.org/r/20241015004945.3676-3-jonathan@marek.ca [ johan: move vendor property; use boolean; reword description ] Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20250219134118.31017-2-johan+linaro@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: rv3032: drop WADAAlexandre Belloni1-6/+0
WADA doesn't actually exist in CTRL1 of the RV-3032, drop it. Link: https://lore.kernel.org/r/20250306214243.1167692-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: rv3032: fix EERD locationAlexandre Belloni1-1/+1
EERD is bit 2 in CTRL1 Link: https://lore.kernel.org/r/20250306214243.1167692-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: pm8xxx: switch to devm_device_init_wakeupAlexandre Belloni1-1/+1
Switch to devm_device_init_wakeup to avoid a possible memory leak as wakeup is never disabled. Link: https://lore.kernel.org/r/20250303223600.1135142-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: pm8xxx: fix possible race conditionAlexandre Belloni1-2/+2
probe must not fail after devm_rtc_register_device is successful because the character device will be seen by userspace and may be opened right away. Call it last to avoid opening the race window. Link: https://lore.kernel.org/r/20250303223600.1135142-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-17rtc: mpfs: switch to devm_device_init_wakeupAlexandre Belloni1-1/+1
Switch to devm_device_init_wakeup to avoid a possible memory leak as wakeup is never disabled. Link: https://lore.kernel.org/r/20250303223600.1135142-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-11rtc: renesas-rtca3: Disable interrupts only if the RTC is enabledClaudiu Beznea1-9/+6
If the RTC is not enabled and the code attempts to disable the interrupt, the readb_poll_timeout_atomic() function in the rtca3_alarm_irq_set_helper() may timeout, leading to probe failures. This issue is reproducible on some devices because the initial values of the PIE and AIE bits in the RCR1 register are undefined. To prevent probe failures in this scenario, disable RTC interrupts only when the RTC is actually enabled. Fixes: d4488377609e ("rtc: renesas-rtca3: Add driver for RTCA-3 available on Renesas RZ/G3S SoC") Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Link: https://lore.kernel.org/r/20250205095519.2031742-1-claudiu.beznea.uj@bp.renesas.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-07rtc: pl031: document struct pl031_vendor_data membersAlexandre Belloni1-0/+2
Document the range related members of struct pl031_vendor_data. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202503011015.SYvdddTc-lkp@intel.com/ Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250305221659.1153495-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-06rtc: ds1307: stop disabling alarms on probeAlexandre Belloni1-3/+1
It is a bad practice to disable alarms on probe or remove as this will prevent alarms across reboots. Link: https://lore.kernel.org/r/20250303223744.1135672-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: s5m: convert to dev_err_probe() where appropriateAndré Draszik1-29/+21
dev_err_probe() exists to simplify code and harmonise error messages, there's no reason not to use it here. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-16-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: max77686: use dev_err_probe() where appropriateAndré Draszik1-17/+12
dev_err_probe() exists to simplify code and harmonise error messages, there's no reason not to use it here. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-15-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: sd3078: drop needless struct sd3078André Draszik1-43/+28
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Since this now means that the structure has just one member only left, there is no need anymore to allocate data for it and pass that around via the various callbacks, just to extract that one member. Instead, we can just pass that one member and avoid the extra memory allocation for the containing struct, reducing runtime memory consumption. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-14-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: sd2405al: drop needless struct sd2405al::rtc memberAndré Draszik1-8/+8
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Tested-by: Tóth János <gomba007@gmail.com> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-13-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: s35390a: drop needless struct s35390a::rtc memberAndré Draszik1-11/+11
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-12-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: rx8581: drop needless struct rx8581André Draszik1-49/+36
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Since this now means that the structure has just one member only left, there is no need anymore to allocate data for it and pass that around via the various callbacks, just to extract that one member. Instead, we can just pass that one member and avoid the extra memory allocation for the containing struct, reducing runtime memory consumption. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-11-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: pl030: drop needless struct pl030_rtc::rtc memberAndré Draszik1-7/+7
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-10-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: meson-vrtc: drop needless struct meson_vrtc_data::rtc memberAndré Draszik1-6/+6
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-9-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: meson: drop needless struct meson_rtc::rtc memberAndré Draszik1-8/+8
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-8-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: m48t86: drop needless struct m48t86_rtc_info::rtc memberAndré Draszik1-7/+7
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-7-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: ftrtc010: drop needless struct ftrtc010_rtc::rtc_dev memberAndré Draszik1-9/+8
The memory pointed to by the ::rtc_dev member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-6-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: ep93xx: drop needless struct ep93xx_rtc::rtc memberAndré Draszik1-8/+8
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-5-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: ds2404: drop needless struct ds2404::rtc memberAndré Draszik1-7/+7
The memory pointed to by the ::rtc member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-4-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: aspeed: drop needless struct aspeed_rtc::rtc_dev memberAndré Draszik1-8/+8
The memory pointed to by the ::rtc_dev member is managed via devres, and no code in this driver uses it past _probe(). We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-3-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: s5m: drop needless struct s5m_rtc_info::i2c memberAndré Draszik1-6/+6
When this driver was converted to using the devres managed i2c device in commit 7db7ad0817fe ("rtc: s5m: use devm_i2c_new_dummy_device()"), struct s5m_rtc_info::i2c became essentially unused. We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-2-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-05rtc: max77686: drop needless struct max77686_rtc_info::rtc memberAndré Draszik1-6/+6
When this driver was converted to using the devres managed i2c device in commit 59a7f24fceb3 ("rtc: max77686: convert to devm_i2c_new_dummy_device()"), struct max77686_rtc_info::rtc became essentially unused. We can drop it from the structure and just use a local temporary variable, reducing runtime memory consumption by a few bytes. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250304-rtc-cleanups-v2-1-d4689a71668c@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: ds3232: Use HWMON_CHANNEL_INFO macro to simplify codeHuisong Li1-22/+2
Use HWMON_CHANNEL_INFO macro to simplify code. Signed-off-by: Huisong Li <lihuisong@huawei.com> Link: https://lore.kernel.org/r/20250210054546.10785-3-lihuisong@huawei.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: ab-eoz9: Use HWMON_CHANNEL_INFO macro to simplify codeHuisong Li1-22/+2
Use HWMON_CHANNEL_INFO macro to simplify code. Signed-off-by: Huisong Li <lihuisong@huawei.com> Link: https://lore.kernel.org/r/20250210054546.10785-2-lihuisong@huawei.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: pl031: Use resource managed API to simplify codePeng Fan1-4/+2
Use devm_pm_set_wake_irq and devm_device_init_wakeup to cleanup the error handling code and 'driver.remove()' hook. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250205-rtc-cleanup-v1-7-66165678e089@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: mpfs: Use devm_pm_set_wake_irqPeng Fan1-7/+1
Use devm_pm_set_wake_irq, then the 'driver.remove()' could be cleaned up. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250205-rtc-cleanup-v1-6-66165678e089@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: ab8500: Use resource managed API to simplify codePeng Fan1-9/+2
Use devm_pm_set_wake_irq and devm_device_init_wakeup to cleanup the error handling code and 'driver.remove()' hook. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250205-rtc-cleanup-v1-5-66165678e089@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: pm8xxx: Use devm_pm_set_wake_irqPeng Fan1-11/+1
Use devm_pm_set_wake_irq, then the 'driver.remove()' could be cleaned up. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250205-rtc-cleanup-v1-4-66165678e089@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: ds1343: Use devm_pm_set_wake_irqPeng Fan1-7/+1
Use devm_pm_set_wake_irq, then the 'driver.remove()' could be cleaned up. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250205-rtc-cleanup-v1-3-66165678e089@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: nxp-bbnsm: Use resource managed API to simplify codePeng Fan1-20/+9
Use devm_pm_set_wake_irq and devm_device_init_wakeup to cleanup the error handling code and 'driver.remove()' hook. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250205-rtc-cleanup-v1-2-66165678e089@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-03-03rtc: stm32: Use resource managed API to simplify codePeng Fan1-8/+2
Use devm_pm_set_wake_irq and devm_device_init_wakeup to cleanup the error handling code and 'driver.remove()' hook. Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com> Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20250205-rtc-cleanup-v1-1-66165678e089@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-02-28rtc: pl030: Constify amba_id tableKrzysztof Kozlowski1-1/+1
'struct amba_id' table is not modified so can be changed to const for more safety. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250222114146.162835-2-krzysztof.kozlowski@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-02-28rtc: fsl-ftm-alarm: Mark acpi_id table as maybe unusedKrzysztof Kozlowski1-1/+1
For !ACPI builds, the acpi_device_id table will not be referenced because of ACPI_PTR: rtc-fsl-ftm-alarm.c:312:36: error: unused variable 'ftm_imx_acpi_ids' [-Werror,-Wunused-const-variable] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20250222114146.162835-1-krzysztof.kozlowski@linaro.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2025-02-02Linux 6.14-rc1Linus Torvalds1-2/+2
2025-02-02tools/power turbostat: version 2025.02.02Len Brown1-1/+1
Summary of Changes since 2024.11.30: Fix regression in 2023.11.07 that affinitized forked child in one-shot mode. Harden one-shot mode against hotplug online/offline Enable RAPL SysWatt column by default. Add initial PTL, CWF platform support. Harden initial PMT code in response to early use. Enable first built-in PMT counter: CWF c1e residency Refuse to run on unsupported platforms without --force, to encourage updating to a version that supports the system, and to avoid no-so-useful measurement results. Signed-off-by: Len Brown <len.brown@intel.com>
2025-02-01MAINTAINERS: include linux-mm for xarray maintenanceAndrew Morton1-0/+1
MM developers have an interest in the xarray code. Cc: David Gow <davidgow@google.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com> Cc: Tamir Duberstein <tamird@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-01revert "xarray: port tests to kunit"Andrew Morton16-410/+294
Revert c7bb5cf9fc4e ("xarray: port tests to kunit"). It broke the build when compiing the xarray userspace test harness code. Reported-by: Sidhartha Kumar <sidhartha.kumar@oracle.com> Closes: https://lkml.kernel.org/r/07cf896e-adf8-414f-a629-a808fc26014a@oracle.com Cc: David Gow <davidgow@google.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Tamir Duberstein <tamird@gmail.com> Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-01MAINTAINERS: add lib/test_xarray.cTamir Duberstein1-0/+1
Ensure test-only changes are sent to the relevant maintainer. Link: https://lkml.kernel.org/r/20250129-xarray-test-maintainer-v1-1-482e31f30f47@gmail.com Signed-off-by: Tamir Duberstein <tamird@gmail.com> Cc: Mattew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-01mailmap, MAINTAINERS, docs: update Carlos's email addressCarlos Bilbao3-6/+8
Update .mailmap to reflect my new (and final) primary email address, carlos.bilbao@kernel.org. Also update contact information in files Documentation/translations/sp_SP/index.rst and MAINTAINERS. Link: https://lkml.kernel.org/r/20250130012248.1196208-1-carlos.bilbao@kernel.org Signed-off-by: Carlos Bilbao <carlos.bilbao@kernel.org> Cc: Carlos Bilbao <bilbao@vt.edu> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mattew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-01mm/hugetlb: fix hugepage allocation for interleaved memory nodesRitesh Harjani (IBM)1-1/+1
gather_bootmem_prealloc() assumes the start nid as 0 and size as num_node_state(N_MEMORY). That means in case if memory attached numa nodes are interleaved, then gather_bootmem_prealloc_parallel() will fail to scan few of these nodes. Since memory attached numa nodes can be interleaved in any fashion, hence ensure that the current code checks for all numa node ids (.size = nr_node_ids). Let's still keep max_threads as N_MEMORY, so that it can distributes all nr_node_ids among the these many no. threads. e.g. qemu cmdline ======================== numa_cmd="-numa node,nodeid=1,memdev=mem1,cpus=2-3 -numa node,nodeid=0,cpus=0-1 -numa dist,src=0,dst=1,val=20" mem_cmd="-object memory-backend-ram,id=mem1,size=16G" w/o this patch for cmdline (default_hugepagesz=1GB hugepagesz=1GB hugepages=2): ========================== ~ # cat /proc/meminfo |grep -i huge AnonHugePages: 0 kB ShmemHugePages: 0 kB FileHugePages: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 1048576 kB Hugetlb: 0 kB with this patch for cmdline (default_hugepagesz=1GB hugepagesz=1GB hugepages=2): =========================== ~ # cat /proc/meminfo |grep -i huge AnonHugePages: 0 kB ShmemHugePages: 0 kB FileHugePages: 0 kB HugePages_Total: 2 HugePages_Free: 2 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 1048576 kB Hugetlb: 2097152 kB Link: https://lkml.kernel.org/r/f8d8dad3a5471d284f54185f65d575a6aaab692b.1736592534.git.ritesh.list@gmail.com Fixes: b78b27d02930 ("hugetlb: parallelize 1G hugetlb initialization") Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Reported-by: Pavithra Prakash <pavrampu@linux.ibm.com> Suggested-by: Muchun Song <muchun.song@linux.dev> Tested-by: Sourabh Jain <sourabhjain@linux.ibm.com> Reviewed-by: Luiz Capitulino <luizcap@redhat.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Donet Tom <donettom@linux.ibm.com> Cc: Gang Li <gang.li@linux.dev> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-01mm: gup: fix infinite loop within __get_longterm_lockedZhaoyang Huang1-10/+4
We can run into an infinite loop in __get_longterm_locked() when collect_longterm_unpinnable_folios() finds only folios that are isolated from the LRU or were never added to the LRU. This can happen when all folios to be pinned are never added to the LRU, for example when vm_ops->fault allocated pages using cma_alloc() and never added them to the LRU. Fix it by simply taking a look at the list in the single caller, to see if anything was added. [zhaoyang.huang@unisoc.com: move definition of local] Link: https://lkml.kernel.org/r/20250122012604.3654667-1-zhaoyang.huang@unisoc.com Link: https://lkml.kernel.org/r/20250121020159.3636477-1-zhaoyang.huang@unisoc.com Fixes: 67e139b02d99 ("mm/gup.c: refactor check_and_migrate_movable_pages()") Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: David Hildenbrand <david@redhat.com> Suggested-by: David Hildenbrand <david@redhat.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Aijun Sun <aijun.sun@unisoc.com> Cc: Alistair Popple <apopple@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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