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15ec2ce19962b61576c8bf25bc129fc61a653c2e
linux/drivers/rtc
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Akhilesh Patil 15ec2ce199 rtc: m41t93: Add watchdog support 
Implement watchdog feature for m41t93 rtc with 1s resolution.
Implement alarm only support (WDIOF_ALARMONLY) in this commit.
Define start, stop, ping, and set_timeout callbacks as needed
by the watchdog framework.

Use selftests/watchdog/watchdog-test kselftest for testing.
Observed IRQ pin(12) of rtc chip going low after late pinging
the watchdog.

Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
Link: https://patch.msgid.link/77c2e9f4ab0811a919595d7a5476b00abd1c2803.1758379856.git.akhilesh@ee.iitb.ac.in
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2026-06-24 23:12:11 +02:00
..
class.c
Merge tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2026-02-22 09:43:11 -08:00
dev.c
rtc: add data_race() in rtc_dev_poll()
2026-03-18 22:27:04 +01:00
interface.c
rtc: interface: fix typos in rtc_handle_legacy_irq() documentation
2026-06-23 00:13:35 +02:00
Kconfig
rtc: remove unused pcap driver
2026-06-23 00:13:35 +02:00
lib.c
rtc: Optimize calculations in rtc_time64_to_tm()
2025-07-23 23:48:06 +02:00
Makefile
rtc: remove unused pcap driver
2026-06-23 00:13:35 +02:00
nvmem.c
nvmem: add explicit config option to read old syntax fixed OF cells
2023-10-21 19:19:06 +02:00
proc.c
rtc: fix snprintf() checking in is_rtc_hctosys()
2021-05-25 00:36:11 +02:00
rtc-88pm80x.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-88pm860x.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-88pm886.c
rtc: Use named initializers for platform_device_id arrays
2026-06-22 02:22:42 +02:00
rtc-ab8500.c
rtc: ab8500: Simplify driver_data handling
2026-06-22 02:22:42 +02:00
rtc-ab-b5ze-s3.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-ab-eoz9.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-abx80x.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-ac100.c
rtc: ac100: convert from divider_round_rate() to divider_determine_rate()
2026-01-22 10:49:10 -05:00
rtc-amlogic-a4.c
rtc: amlogic-a4: Remove IRQF_ONESHOT
2026-02-01 17:37:16 +01:00
rtc-armada38x.c
rtc: armada38x: zalloc + calloc to single allocation
2026-03-13 11:22:04 +01:00
rtc-as3722.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-asm9260.c
rtc: Switch back to struct platform_driver::remove()
2024-11-10 22:58:28 +01:00
rtc-aspeed.c
rtc: aspeed: add AST2700 compatible
2026-06-23 00:13:35 +02:00
rtc-at91rm9200.c
rtc: at91rm9200: drop unused module alias
2025-05-24 23:58:23 +02:00
rtc-at91sam9.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-atcrtc100.c
rtc: atcrtc100: Fix signedness bug in probe()
2025-12-08 22:59:58 +01:00
rtc-au1xxx.c
rtc: au1xxx: convert to SPDX identifier
2021-07-10 01:53:39 +02:00
rtc-bd70528.c
rtc: Use named initializers for platform_device_id arrays
2026-06-22 02:22:42 +02:00
rtc-bq32k.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-bq4802.c
…
rtc-brcmstb-waketimer.c
rtc: brcmstb-waketimer: don't include 'pm_wakeup.h' directly
2024-11-18 14:47:40 +01:00
rtc-cadence.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-cmos.c
Merge tag 'rtc-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2026-04-25 16:39:03 -07:00
rtc-core.h
rtc: Remove unused rtc_dev_exit().
2022-06-24 21:24:02 +02:00
rtc-cpcap.c
Revert "rtc: cpcap: Fix initial enable_irq/disable_irq balance"
2025-10-31 12:42:23 +01:00
rtc-cros-ec.c
rtc: Drop unused assignment of platform_device_id driver data
2026-06-22 02:22:42 +02:00
rtc-cv1800.c
rtc: sophgo: add rtc support for Sophgo CV1800 SoC
2025-05-25 00:15:13 +02:00
rtc-da9052.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-da9055.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-da9063.c
rtc: da9063: drop unused module alias
2025-05-24 23:58:23 +02:00
rtc-digicolor.c
rtc: digicolor: quiet maybe-unused variable warning
2021-02-06 00:58:24 +01:00
rtc-ds1216.c
…
rtc-ds1286.c
…
rtc-ds1302.c
rtc: ds1302: remove unnecessary spi_set_drvdata()
2022-11-15 21:01:51 +01:00
rtc-ds1305.c
rtc: ds1305: Report maximum alarm limit to rtc core
2023-08-27 23:50:22 +02:00
rtc-ds1307.c
rtc: ds1307: add support for clock provider in ds1307
2026-06-24 22:53:26 +02:00
rtc-ds1343.c
rtc: ds1343: Use devm_pm_set_wake_irq
2025-03-03 22:52:29 +01:00
rtc-ds1347.c
rtc: ds1347: fix value written to century register
2022-11-15 21:01:51 +01:00
rtc-ds1374.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-ds1390.c
rtc: ds1390: fix number of bytes read from RTC
2026-02-20 23:12:25 +01:00
rtc-ds1511.c
rtc: ds1511: set alarm offset limit
2024-02-29 22:16:52 +01:00
rtc-ds1553.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-ds1672.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-ds1685.c
rtc: ds1685: stop setting max_user_freq
2025-11-03 14:38:37 +01:00
rtc-ds1742.c
rtc: Explicitly include correct DT includes
2023-07-27 23:31:29 +02:00
rtc-ds2404.c
rtc: ds2404: drop needless struct ds2404::rtc member
2025-03-05 23:08:00 +01:00
rtc-ds3232.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-efi.c
rtc: efi: Remove wakeup functionality
2025-09-16 17:38:21 +02:00
rtc-em3027.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-ep93xx.c
rtc: ep93xx: drop needless struct ep93xx_rtc::rtc member
2025-03-05 23:08:00 +01:00
rtc-fm3130.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-fsl-ftm-alarm.c
rtc: fsl-ftm-alarm: Mark acpi_id table as maybe unused
2025-02-28 17:56:22 +01:00
rtc-ftrtc010.c
rtc: ftrtc010: drop needless struct ftrtc010_rtc::rtc_dev member
2025-03-05 23:08:00 +01:00
rtc-gamecube.c
rtc: gamecube: Check the return value of ioremap()
2025-12-08 22:54:17 +01:00
rtc-generic.c
…
rtc-goldfish.c
rtc: add missing MODULE_DESCRIPTION() macro
2024-06-28 00:24:43 +02:00
rtc-hid-sensor-time.c
module: Convert symbol namespace to string literal
2024-12-02 11:34:44 -08:00
rtc-hym8563.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-imx-sc.c
rtc: imx-sc: remove .read_alarm
2021-04-29 23:03:26 +02:00
rtc-imx-sm-bbm.c
rtc: support i.MX95 BBM RTC
2024-08-28 21:54:51 +01:00
rtc-imxdi.c
rtc: Switch back to struct platform_driver::remove()
2024-11-10 22:58:28 +01:00
rtc-isl1208.c
rtc: isl1208: Balance enable_irq_wake() with disable_irq_wake() on cleanup
2026-06-22 23:28:57 +02:00
rtc-isl12022.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-isl12026.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-jz4740.c
rtc: jz4740: drop unused module alias
2025-05-24 23:58:23 +02:00
rtc-loongson.c
rtc: loongson: Add Loongson-2K0300 support
2026-01-31 00:12:32 +01:00
rtc-lp8788.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-lpc24xx.c
rtc: Switch back to struct platform_driver::remove()
2024-11-10 22:58:28 +01:00
rtc-lpc32xx.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-m41t80.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-m41t93.c
rtc: m41t93: Add watchdog support
2026-06-24 23:12:11 +02:00
rtc-m41t94.c
…
rtc-m48t35.c
rtc: m48t35: remove SGI-IP27 kludge
2020-03-16 11:12:11 +01:00
rtc-m48t59.c
rtc: m48t59: Use platform_data struct for year offset value
2024-11-18 14:31:57 +01:00
rtc-m48t86.c
rtc: m48t86: drop needless struct m48t86_rtc_info::rtc member
2025-03-05 23:08:00 +01:00
rtc-ma35d1.c
rtc: ma35d1: remove hardcoded UIE support
2024-01-08 01:33:27 +01:00
rtc-macsmc.c
rtc: Add new rtc-macsmc driver for Apple Silicon Macs
2025-12-08 22:41:59 +01:00
rtc-max6900.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-max6902.c
…
rtc-max6916.c
…
rtc-max8907.c
rtc: max8907: Drop unused i2c include
2023-02-01 09:13:35 +01:00
rtc-max8925.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-max8997.c
rtc: Drop unused assignment of platform_device_id driver data
2026-06-22 02:22:42 +02:00
rtc-max8998.c
rtc: Use named initializers for platform_device_id arrays
2026-06-22 02:22:42 +02:00
rtc-max31335.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-max77686.c
rtc: Use named initializers for platform_device_id arrays
2026-06-22 02:22:42 +02:00
rtc-mc13xxx.c
mfd: input: rtc: mc13783: Remove deprecated mc13xxx_irq_ack()
2025-09-11 11:39:31 +01:00
rtc-mc146818-lib.c
rtc: rtc-mc146818-lib: Use is_leap_year instead of calculate leap years
2024-11-10 23:02:43 +01:00
rtc-mcp795.c
rtc: mcp795: drop unneeded MODULE_ALIAS
2024-04-17 01:39:35 +02:00
rtc-meson-vrtc.c
rtc: meson-vrtc: drop needless struct meson_vrtc_data::rtc member
2025-03-05 23:08:00 +01:00
rtc-meson.c
rtc: remove unneeded 'fast_io' parameter in regmap_config
2025-09-16 17:38:21 +02:00
rtc-moxart.c
rtc: moxart: switch to using gpiod API
2023-02-09 23:31:46 +01:00
rtc-mpc5121.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-mpfs.c
rtc: mpfs: fix counter upload completion condition
2026-06-22 02:15:29 +02:00
rtc-msc313.c
rtc: msc313: fix NULL deref in shared IRQ handler at probe
2026-06-23 00:13:35 +02:00
rtc-msm6242.c
…
rtc-mt2712.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-mt6397.c
rtc: mt6359: Add mt6357 support
2025-06-02 00:25:32 +02:00
rtc-mt7622.c
rtc: Switch back to struct platform_driver::remove()
2024-11-10 22:58:28 +01:00
rtc-mv.c
rtc: mv: add suspend/resume support for wakeup
2026-06-23 00:13:36 +02:00
rtc-mxc_v2.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-mxc.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-nct3018y.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-nct6694.c
rtc: Add Nuvoton NCT6694 RTC support
2025-09-16 14:41:58 +01:00
rtc-ntxec.c
rtc: ntxec: fix OF node reference imbalance
2026-04-12 22:54:35 +02:00
rtc-nvidia-vrs10.c
rtc: nvvrs: add NVIDIA VRS RTC device driver
2025-11-06 23:50:08 +01:00
rtc-nxp-bbnsm.c
rtc: nxp-bbnsm: Use resource managed API to simplify code
2025-03-03 22:52:29 +01:00
rtc-omap.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-opal.c
rtc: opal: switch to RTC_FEATURE_UPDATE_INTERRUPT
2022-03-23 19:58:39 +01:00
rtc-optee.c
Merge tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2026-02-22 09:43:11 -08:00
rtc-palmas.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-pcf2123.c
rtc: pcf2123: use IRQ flags obtained from fwnode
2023-02-01 09:13:35 +01:00
rtc-pcf2127.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-pcf8523.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-pcf8563.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-pcf8583.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-pcf85063.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-pcf85363.c
rtc: pcf85363: fix wrong mask/val parameters in regmap_update_bits call
2023-10-15 22:37:57 +02:00
rtc-pic32.c
rtc: pic32: update include to use pic32.h from platform_data
2026-01-30 15:29:08 +01:00
rtc-pl030.c
rtc: pl030: drop needless struct pl030_rtc::rtc member
2025-03-05 23:08:00 +01:00
rtc-pl031.c
rtc: pl031: document struct pl031_vendor_data members
2025-03-07 22:46:29 +01:00
rtc-pm8xxx.c
rtc: pm8xxx: drop unused module alias
2025-05-24 23:58:23 +02:00
rtc-ps3.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-pxa.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-r7301.c
rtc: rtc7301: Support byte-addressed IO
2023-10-15 22:37:25 +02:00
rtc-r9701.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-rc5t583.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-rc5t619.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-renesas-rtca3.c
rtc: renesas-rtca3: Factor out year decoding helper
2026-06-22 01:59:16 +02:00
rtc-rk808.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-rp5c01.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-rs5c313.c
rtc: rs5c313: correct some spelling mistakes
2022-12-15 23:34:31 +01:00
rtc-rs5c348.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-rs5c372.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-rtd119x.c
rtc: Switch back to struct platform_driver::remove()
2024-11-10 22:58:28 +01:00
rtc-rv3028.c
rtc: rv3028: stop setting max_user_freq
2025-11-03 14:38:38 +01:00
rtc-rv3029c2.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-rv3032.c
rtc: rv3032: stop setting max_user_freq
2025-11-03 14:38:38 +01:00
rtc-rv8803.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-rx4581.c
…
rtc-rx6110.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-rx8010.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-rx8025.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-rx8111.c
rtc: rx8111: handle VLOW flag
2024-05-07 23:40:10 +02:00
rtc-rx8581.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-rzn1.c
rtc: rzn1: support input frequencies other than 32768Hz
2025-06-01 23:53:02 +02:00
rtc-s3c.c
rtc: s3c: Drop support for S3C2410
2025-09-16 17:38:20 +02:00
rtc-s3c.h
rtc: s3c: Drop support for S3C2410
2025-09-16 17:38:20 +02:00
rtc-s5m.c
rtc: Use named initializers for platform_device_id arrays
2026-06-22 02:22:42 +02:00
rtc-s32g.c
rtc: s32g: add NXP S32G2/S32G3 SoC support
2025-05-25 23:27:56 +02:00
rtc-s35390a.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-sa1100.c
rtc: sa1100: stop setting max_user_freq
2025-11-03 14:38:37 +01:00
rtc-sa1100.h
…
rtc-sc27xx.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-sd2405al.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-sd3078.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-sh.c
rtc: sh: stop setting max_user_freq
2025-11-03 14:38:38 +01:00
rtc-snvs.c
rtc: snvs: Allow a time difference on clock register read
2022-11-15 21:25:44 +01:00
rtc-spacemit-p1.c
rtc: spacemit: support the SpacemiT P1 RTC
2025-09-16 17:38:21 +02:00
rtc-spear.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-ssd202d.c
rtc: Add support for the SSD202D RTC
2023-10-16 16:54:15 +02:00
rtc-st-lpc.c
rtc: st-lpc: Use IRQF_NO_AUTOEN flag in request_irq()
2024-11-10 23:01:59 +01:00
rtc-starfire.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-stk17ta8.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-stm32.c
rtc: stm32: Constify static 'pinctrl_desc'
2025-06-18 13:26:37 +02:00
rtc-stmp3xxx.c
rtc: Switch back to struct platform_driver::remove()
2024-11-10 22:58:28 +01:00
rtc-sun4v.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-sun6i.c
Convert 'alloc_flex' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
rtc-sunplus.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-sunxi.c
rtc: Explicitly include correct DT includes
2023-07-27 23:31:29 +02:00
rtc-tegra.c
rtc: tegra: Replace deprecated SIMPLE_DEV_PM_OPS
2025-12-08 22:26:42 +01:00
rtc-test.c
treewide, timers: Rename from_timer() to timer_container_of()
2025-06-08 09:07:37 +02:00
rtc-ti-k3.c
rtc: ti-k3: Add support to resume from IO DDR low power mode
2026-04-12 22:51:31 +02:00
rtc-tps6586x.c
Revert "rtc: tps6586x: Fix initial enable_irq/disable_irq balance"
2025-10-31 12:42:22 +01:00
rtc-tps6594.c
rtc: Use named initializers for platform_device_id arrays
2026-06-22 02:22:42 +02:00
rtc-tps65910.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-twl.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-vt8500.c
rtc: Switch back to struct platform_driver::remove()
2024-11-10 22:58:28 +01:00
rtc-wilco-ec.c
rtc: rework rtc_register_device() resource management
2020-11-19 12:50:12 +01:00
rtc-wm831x.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-wm8350.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-x1205.c
rtc: Use named initializers for arrays of i2c_device_data
2026-06-22 02:20:13 +02:00
rtc-xgene.c
rtc: use boolean values with device_init_wakeup()
2025-01-09 18:29:24 +01:00
rtc-zynqmp.c
rtc: zynqmp: use dynamic max and min offset ranges
2026-01-29 16:44:37 +01:00
sysfs.c
rtc: sysfs: use __ATTRIBUTE_GROUPS()
2025-07-22 13:06:19 +02:00
test_rtc_lib.c
rtc: Rename lib_test to test_rtc_lib
2025-07-22 12:56:58 +02:00