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linux/drivers/rtc
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Mario Limonciello 120931db07 rtc: Add support for configuring the UIP timeout for RTC reads 
The UIP timeout is hardcoded to 10ms for all RTC reads, but in some
contexts this might not be enough time. Add a timeout parameter to
mc146818_get_time() and mc146818_get_time_callback().

If UIP timeout is configured by caller to be >=100 ms and a call
takes this long, log a warning.

Make all callers use 10ms to ensure no functional changes.

Cc:  <stable@vger.kernel.org> # 6.1.y
Fixes: ec5895c0f2 ("rtc: mc146818-lib: extract mc146818_avoid_UIP")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Reviewed-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Acked-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Link: https://lore.kernel.org/r/20231128053653.101798-4-mario.limonciello@amd.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-12-17 22:33:55 +01:00
..
class.c driver core: class: remove module * from class_create() 2023-03-17 15:16:33 +01:00
dev.c rtc: Remove unused rtc_dev_exit(). 2022-06-24 21:24:02 +02:00
interface.c rtc: stop warning for invalid alarms when the alarm is disabled 2023-09-06 01:25:15 +02:00
Kconfig rtc: Add support for the SSD202D RTC 2023-10-16 16:54:15 +02:00
lib.c
lib_test.c
Makefile rtc: Add support for the SSD202D RTC 2023-10-16 16:54:15 +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-88pm80x.c rtc: 88pm80x: Convert to platform remove callback returning void 2023-03-17 23:03:16 +01:00
rtc-88pm860x.c rtc: 88pm860x: Convert to platform remove callback returning void 2023-03-17 23:03:16 +01:00
rtc-ab-b5ze-s3.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ab-eoz9.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ab8500.c rtc: ab8500: Convert to platform remove callback returning void 2023-03-17 23:03:16 +01:00
rtc-abx80x.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-ac100.c rtc: ac100: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-armada38x.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-as3722.c
rtc-asm9260.c rtc: asm9260: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-aspeed.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-at91rm9200.c rtc: at91rm9200: annotate at91_rtc_remove with __exit again 2023-10-16 06:33:00 +02:00
rtc-at91sam9.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-au1xxx.c
rtc-bd70528.c
rtc-bq32k.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-bq4802.c
rtc-brcmstb-waketimer.c rtc: brcmstb-waketimer: support level alarm_irq 2023-10-02 00:13:57 +02:00
rtc-cadence.c rtc: cadence: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-cmos.c rtc: Add support for configuring the UIP timeout for RTC reads 2023-12-17 22:33:55 +01:00
rtc-core.h rtc: Remove unused rtc_dev_exit(). 2022-06-24 21:24:02 +02:00
rtc-cpcap.c
rtc-cros-ec.c rtc: cros-ec: Detect and report supported alarm window size 2023-08-27 23:50:22 +02:00
rtc-da9052.c
rtc-da9055.c
rtc-da9063.c rtc: da9063: Mark the alarm IRQ as a wake IRQ 2023-08-17 01:09:50 +02:00
rtc-digicolor.c
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: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-ds1343.c
rtc-ds1347.c rtc: ds1347: fix value written to century register 2022-11-15 21:01:51 +01:00
rtc-ds1374.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ds1390.c rtc: ds1390: mark OF related data as maybe unused 2023-03-17 23:23:22 +01:00
rtc-ds1511.c
rtc-ds1553.c
rtc-ds1672.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ds1685.c rtc: ds1685: use EXPORT_SYMBOL_GPL for ds1685_rtc_poweroff 2023-08-02 11:18:22 -07:00
rtc-ds1742.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-ds2404.c rtc: ds2404: Convert to GPIO descriptors 2023-08-17 00:55:56 +02:00
rtc-ds3232.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-efi.c rtc: efi: fixed typo in efi_procfs() 2023-10-15 23:01:08 +02:00
rtc-em3027.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-ep93xx.c rtc: ep93xx: add DT support for Cirrus EP93xx 2023-10-15 23:17:05 +02:00
rtc-fm3130.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-fsl-ftm-alarm.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-ftrtc010.c rtc: ftrtc010: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-gamecube.c rtc: gamecube: Always reset HW_SRNPROT after read 2022-08-23 22:27:58 +02:00
rtc-generic.c
rtc-goldfish.c
rtc-hid-sensor-time.c rtc: hid-sensor-time: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-hym8563.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-imx-sc.c
rtc-imxdi.c rtc: imxdi: Convert to platform remove callback returning void 2023-10-13 12:29:08 +02:00
rtc-isl1208.c rtc: isl1208: Fix incorrect logic in isl1208_set_xtoscb() 2023-08-27 23:48:32 +02:00
rtc-isl12022.c rtc: isl12022: implement support for the #clock-cells DT property 2023-08-16 01:27:01 +02:00
rtc-isl12026.c rtc: isl12026: Drop "_new" from probe callback name 2023-07-27 23:32:08 +02:00
rtc-jz4740.c rtc: jz4740: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-loongson.c rtc: Add rtc driver for the Loongson family chips 2023-06-26 01:19:11 +02:00
rtc-lp8788.c
rtc-lpc24xx.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-lpc32xx.c
rtc-m41t80.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-m41t93.c
rtc-m41t94.c
rtc-m48t35.c
rtc-m48t59.c
rtc-m48t86.c rtc: m48t86: add DT support for m48t86 2023-08-28 00:01:51 +02:00
rtc-max6900.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +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-max8997.c
rtc-max8998.c
rtc-max77686.c rtc: max77686: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-mc13xxx.c rtc: mc13xxx: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-mc146818-lib.c rtc: Add support for configuring the UIP timeout for RTC reads 2023-12-17 22:33:55 +01:00
rtc-mcp795.c
rtc-meson-vrtc.c rtc: meson-vrtc: Use ktime_get_real_ts64() to get the current time 2023-03-21 21:15:10 +01:00
rtc-meson.c
rtc-moxart.c rtc: moxart: switch to using gpiod API 2023-02-09 23:31:46 +01:00
rtc-mpc5121.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mpfs.c rtc: mpfs: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-msc313.c rtc: msc313: Fix function prototype mismatch in msc313_rtc_probe() 2022-12-11 18:14:01 +01:00
rtc-msm6242.c
rtc-mt2712.c
rtc-mt6397.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mt7622.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mv.c rtc: mv: Convert to platform remove callback returning void 2023-10-13 12:29:08 +02:00
rtc-mxc.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-mxc_v2.c rtc: mxc_v2: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-nct3018y.c rtc: remove redundant of_match_ptr() 2023-08-10 09:45:41 +02:00
rtc-ntxec.c
rtc-nxp-bbnsm.c rtc: bbnsm: Add the bbnsm rtc support 2023-02-22 12:25:32 +01:00
rtc-omap.c rtc: omap: Use device_get_match_data() 2023-10-15 22:38:50 +02:00
rtc-opal.c
rtc-optee.c
rtc-palmas.c rtc: palmas: Convert to platform remove callback returning void 2023-03-17 23:03:17 +01:00
rtc-pcap.c rtc: pcap: Drop no-op remove function 2023-10-13 12:29:08 +02:00
rtc-pcf2123.c rtc: pcf2123: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-pcf2127.c rtc: pcf2127: remove useless check 2023-08-27 23:53:06 +02:00
rtc-pcf8523.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-pcf8563.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-pcf8583.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-pcf50633.c rtc: pcf50633: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-pcf85063.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +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: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-pl030.c
rtc-pl031.c
rtc-pm8xxx.c rtc: pm8xxx: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-ps3.c
rtc-pxa.c rtc: pxa: Convert to platform remove callback returning void 2023-10-13 12:29:08 +02:00
rtc-r7301.c rtc: rtc7301: Support byte-addressed IO 2023-10-15 22:37:25 +02:00
rtc-r9701.c
rtc-rc5t583.c rtc: rc5t583: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-rc5t619.c
rtc-rk808.c rtc: rk808: reduce 'struct rk808' usage 2022-12-11 20:56:33 +01:00
rtc-rp5c01.c
rtc-rs5c313.c rtc: rs5c313: correct some spelling mistakes 2022-12-15 23:34:31 +01:00
rtc-rs5c348.c
rtc-rs5c372.c rtc: rs5c372: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-rtd119x.c rtc: rtd119x: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-rv3028.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rv3029c2.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-rv3032.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rv8803.c rtc: rv8803: fix Wvoid-pointer-to-enum-cast warning 2023-08-16 01:32:08 +02:00
rtc-rx4581.c
rtc-rx6110.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rx8010.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-rx8025.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-rx8581.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-rzn1.c rtc: rzn1: Report maximum alarm limit to rtc core 2023-08-27 23:50:22 +02:00
rtc-s3c.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-s3c.h
rtc-s5m.c rtc: s5m: Drop S5M8763 support 2023-04-26 11:40:26 +01:00
rtc-s35390a.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-sa1100.c rtc: sa1100: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-sa1100.h
rtc-sc27xx.c
rtc-sd3078.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-sh.c rtc: sh: Convert to platform remove callback returning void 2023-10-13 12:29:08 +02:00
rtc-snvs.c rtc: snvs: Allow a time difference on clock register read 2022-11-15 21:25:44 +01:00
rtc-spear.c rtc: spear: Convert to platform remove callback returning void 2023-03-17 23:03:18 +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: Simplify clk handling in st_rtc_probe() 2023-06-26 00:53:19 +02:00
rtc-starfire.c
rtc-stk17ta8.c
rtc-stm32.c rtc: stm32: Use NOIRQ_SYSTEM_SLEEP_PM_OPS() 2023-08-17 00:53:00 +02:00
rtc-stmp3xxx.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-sun4v.c
rtc-sun6i.c rtc: sun6i: remove unnecessary message 2023-09-06 01:26:04 +02:00
rtc-sunplus.c rtc: sunplus: Clean up redundant dev_err_probe() 2023-08-10 09:35:28 +02:00
rtc-sunxi.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-tegra.c rtc: tegra: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-test.c
rtc-ti-k3.c rtc: Explicitly include correct DT includes 2023-07-27 23:31:29 +02:00
rtc-tps6586x.c rtc: tps6586x: Report maximum alarm limit to rtc core 2023-08-27 23:50:22 +02:00
rtc-tps65910.c rtc: tps65910: Remove redundant dev_warn() and do not check for 0 return after calling platform_get_irq() 2023-08-17 01:17:34 +02:00
rtc-twl.c rtc: twl: remove unnecessary messages 2023-09-06 01:26:04 +02:00
rtc-vt8500.c rtc: vt8500: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-wilco-ec.c
rtc-wm831x.c
rtc-wm8350.c rtc: wm8350: remove unnecessary messages 2023-09-06 01:26:04 +02:00
rtc-x1205.c rtc: Switch i2c drivers back to use .probe() 2023-06-06 23:29:37 +02:00
rtc-xgene.c rtc: xgene: Convert to platform remove callback returning void 2023-03-17 23:03:18 +01:00
rtc-zynqmp.c rtc: zynqmp: Convert to platform remove callback returning void 2023-03-17 23:03:19 +01:00
sysfs.c rtc: Include <linux/kstrtox.h> when appropriate 2022-11-15 21:01:51 +01:00