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e90ff8ede7
linux/drivers/rtc
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Sean Anderson e90ff8ede7 rtc: abx80x: Add nvmem support 
This adds support for the 256-byte internal RAM. There are two windows
which can be used to access this RAM: 64 bytes at 0x40 (the "standard"
address space) and 128 bytes at 0x80 (the "alternate" address space). We
use the standard address space because it is also accessible over SPI
(if such a port is ever done). We are limited to 32-byte reads for SMBus
compatibility, so there's no advantage to using the alternate address
space.

There are some reserved bits in the EXTRAM register, and the datasheet
doesn't say what to do with them. I've opted to skip a read/modify/write
and just write the whole thing. If this driver is ever converted to
regmap, this would be a good place to use regmap_update_bits.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20221222214532.1873718-1-sean.anderson@seco.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-02-24 00:02:30 +01:00
..
class.c rtc: class: Fix potential memleak in devm_rtc_allocate_device() 2022-11-15 21:01:51 +01:00
dev.c rtc: Remove unused rtc_dev_exit(). 2022-06-24 21:24:02 +02:00
interface.c rtc: allow rtc_read_alarm without read_alarm callback 2023-02-22 12:32:05 +01:00
Kconfig rtc: bbnsm: Add the bbnsm rtc support 2023-02-22 12:25:32 +01:00
lib_test.c rtc: lib_test: add MODULE_LICENSE 2021-08-10 23:21:46 +02:00
lib.c rtc: Improve performance of rtc_time64_to_tm(). Add tests. 2021-08-10 00:09:21 +02:00
Makefile rtc: bbnsm: Add the bbnsm rtc support 2023-02-22 12:25:32 +01:00
nvmem.c rtc: nvmem: emit an error message when nvmem registration fails 2020-11-19 12:50:12 +01:00
proc.c rtc: fix snprintf() checking in is_rtc_hctosys() 2021-05-25 00:36:11 +02:00
rtc-88pm80x.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-88pm860x.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-ab8500.c rtc: ab8500: let the core handle the alarm resolution 2021-11-10 00:45:57 +01:00
rtc-ab-b5ze-s3.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-ab-eoz9.c rtc: ab-eoz9: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-abx80x.c rtc: abx80x: Add nvmem support 2023-02-24 00:02:30 +01:00
rtc-ac100.c rtc: ac100: use rtc_lock/rtc_unlock 2021-01-25 23:45:37 +01:00
rtc-armada38x.c rtc: armada38x: remove armada38x_rtc_ops_noirq 2021-01-16 23:19:26 +01:00
rtc-as3722.c
rtc-asm9260.c rtc: asm9260: use rtc_lock/rtc_unlock 2021-01-25 23:46:16 +01:00
rtc-aspeed.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-at91rm9200.c rtc: at91rm9200: Fix syntax errors in comments 2022-12-15 23:34:31 +01:00
rtc-at91sam9.c rtc: at91sam9: Remove unnecessary offset variable checks 2021-07-10 02:42:08 +02:00
rtc-au1xxx.c rtc: au1xxx: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-bd70528.c rtc: bd70528: Drop BD70528 support 2021-06-20 22:24:52 +02:00
rtc-bq32k.c rtc: Include <linux/kstrtox.h> when appropriate 2022-11-15 21:01:51 +01:00
rtc-bq4802.c
rtc-brcmstb-waketimer.c rtc: brcmstb-waketimer: allow use as non-wake alarm 2023-01-25 18:54:56 +01:00
rtc-cadence.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-cmos.c rtc: cmos: Disable ACPI RTC event on removal 2022-11-15 21:07:14 +01:00
rtc-core.h rtc: Remove unused rtc_dev_exit(). 2022-06-24 21:24:02 +02:00
rtc-cpcap.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-cros-ec.c rtc: cros-ec: Limit RTC alarm range if needed 2022-11-15 21:01:51 +01:00
rtc-da9052.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-da9055.c
rtc-da9063.c rtc: da9063: add as wakeup source 2021-12-02 23:23:38 +01:00
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 spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
rtc-ds1307.c rtc: ds1307: Convert to i2c's .probe_new() 2023-01-09 23:03:56 +01:00
rtc-ds1343.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
rtc-ds1347.c rtc: ds1347: fix value written to century register 2022-11-15 21:01:51 +01:00
rtc-ds1374.c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
rtc-ds1390.c rtc: ds1390: Add SPI ID table 2021-09-25 23:22:28 +02:00
rtc-ds1511.c rtc: ds1511: remove unused function 2021-04-17 11:21:04 +02:00
rtc-ds1553.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-ds1672.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-ds1685.c rtc: ds1685: Fix spelling of function name in comment block 2022-10-13 00:21:28 +02:00
rtc-ds1742.c rtc: ds1742: use devm_platform_get_and_ioremap_resource() 2022-12-15 23:34:31 +01:00
rtc-ds2404.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-ds3232.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-efi.c rtc: efi: Avoid spamming the log on RTC read failure 2023-02-22 21:07:53 +01:00
rtc-em3027.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-ep93xx.c rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time 2020-12-03 23:49:31 +01:00
rtc-fm3130.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-fsl-ftm-alarm.c rtc: fsl-ftm-alarm: Use module_platform_driver replace device_initcall 2022-11-15 21:01:51 +01:00
rtc-ftrtc010.c rtc: ftrtc010: Fix error handling in ftrtc010_rtc_probe 2022-05-19 12:08:17 +02:00
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 clocksource/drivers: Add a goldfish-timer clocksource 2022-04-11 11:48:01 +02:00
rtc-hid-sensor-time.c iio: hid-sensors: lighten exported symbols by moving to IIO_HID namespace 2021-06-16 14:53:13 +01:00
rtc-hym8563.c rtc: hym8563: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-imx-sc.c rtc: imx-sc: remove .read_alarm 2021-04-29 23:03:26 +02:00
rtc-imxdi.c rtc: imxdi: add wakeup support 2021-05-25 00:41:25 +02:00
rtc-isl1208.c rtc: isl1208: Convert to .probe_new() 2022-11-15 21:01:33 +01:00
rtc-isl12022.c rtc: isl12022: sort header inclusion alphabetically 2023-02-22 21:06:30 +01:00
rtc-isl12026.c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
rtc-jz4740.c rtc: jz4740: Register clock provider for the CLK32K pin 2023-02-09 23:38:00 +01:00
rtc-lp8788.c
rtc-lpc24xx.c rtc: remove unnecessary error message after platform_get_irq 2020-04-15 09:56:17 +02:00
rtc-lpc32xx.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-ls1x.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-m41t80.c rtc: m41t80: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-m41t93.c
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_get_irq_optional 2021-03-11 09:48:09 +01:00
rtc-m48t86.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-max6900.c rtc: use simple i2c probe 2022-06-24 21:24:02 +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: Add MAX77714 support 2022-03-07 13:55:04 +00:00
rtc-mc13xxx.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-mc146818-lib.c rtc: mc146818-lib: reduce RTC_UIP polling period 2022-06-24 21:23:50 +02:00
rtc-mcp795.c rtc: mcp795: Add SPI ID table 2021-10-01 23:28:28 +02:00
rtc-meson-vrtc.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-meson.c rtc: meson: Fix email address in MODULE_AUTHOR 2022-05-18 00:20:39 +02:00
rtc-moxart.c rtc: moxart: switch to using gpiod API 2023-02-09 23:31:46 +01:00
rtc-mpc5121.c rtc: mpc5121: switch to RTC_FEATURE_UPDATE_INTERRUPT 2022-03-23 19:58:38 +01:00
rtc-mpfs.c rtc: mpfs: Use devm_clk_get_enabled() helper 2022-10-13 00:31:18 +02:00
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: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-mt6397.c rtc: mt6397: check return value after calling platform_get_resource() 2022-05-19 12:05:48 +02:00
rtc-mt7622.c
rtc-mv.c rtc: mv: remove mv_rtc_alarm_ops 2021-01-16 23:19:26 +01:00
rtc-mxc_v2.c rtc: mxc_v2: Add missing clk_disable_unprepare() 2022-12-15 23:34:31 +01:00
rtc-mxc.c rtc: mxc: Use devm_clk_get_enabled() helper 2022-08-23 22:33:38 +02:00
rtc-nct3018y.c rtc: nct3018y: Convert to .probe_new() 2022-11-15 21:01:33 +01:00
rtc-ntxec.c rtc: New driver for RTC in Netronix embedded controller 2021-03-10 11:06:33 +00:00
rtc-nxp-bbnsm.c rtc: bbnsm: Add the bbnsm rtc support 2023-02-22 12:25:32 +01:00
rtc-omap.c rtc: omap: drop unneeded MODULE_ALIAS 2021-09-25 23:26:37 +02:00
rtc-opal.c rtc: opal: switch to RTC_FEATURE_UPDATE_INTERRUPT 2022-03-23 19:58:39 +01:00
rtc-optee.c rtc: optee: add RTC driver for OP-TEE RTC PTA 2022-03-25 11:42:50 +01:00
rtc-palmas.c rtc: palmas: convert to SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-pcap.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +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: pcf2127: Convert to .probe_new() 2022-11-15 21:01:33 +01:00
rtc-pcf8523.c rtc: pcf8523: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-pcf8563.c rtc: pcf8563: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-pcf8583.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-pcf50633.c
rtc-pcf85063.c rtc: pcf85063: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-pcf85363.c rtc: pcf85363: add support for the quartz-load-femtofarads property 2023-02-22 15:31:01 +01:00
rtc-pic32.c rtc: pic32: Move devm_rtc_allocate_device earlier in pic32_rtc_probe() 2022-12-10 22:37:02 +01:00
rtc-pl030.c amba: Make the remove callback return void 2021-02-02 14:25:50 +01:00
rtc-pl031.c rtc: pl031: fix rtc features null pointer dereference 2022-03-23 19:58:37 +01:00
rtc-pm8xxx.c rtc: pm8xxx: drop error messages 2023-02-09 23:23:44 +01:00
rtc-ps3.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-pxa.c ARM: pxa: split up mach/hardware.h 2022-04-19 16:27:05 +02:00
rtc-r7301.c rtc: r7301: Replace spin_lock_irqsave with spin_lock in hard IRQ 2021-02-06 00:50:47 +01:00
rtc-r9701.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-rc5t583.c
rtc-rc5t619.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-rk808.c rtc: rk808: reduce 'struct rk808' usage 2022-12-11 20:56:33 +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: remove duplicated words in comments 2022-12-15 23:34:31 +01:00
rtc-rtd119x.c rtc: rtd119x: Fix format of SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-rv3028.c rtc: rv3028: add ACPI support 2023-02-22 12:31:05 +01:00
rtc-rv3029c2.c rtc: rv3029c2: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-rv3032.c rtc: rv3032: add ACPI support 2023-02-22 12:31:38 +01:00
rtc-rv8803.c rtc: rv8803: invalidate date/time if alarm time is invalid 2023-02-09 23:01:49 +01:00
rtc-rx4581.c
rtc-rx6110.c rtc: rx6110: Remove unused of_gpio,h 2023-02-22 21:08:27 +01:00
rtc-rx8010.c rtc: rx8010: use IRQ flags obtained from fwnode 2023-02-01 09:13:35 +01:00
rtc-rx8025.c rtc: Include <linux/kstrtox.h> when appropriate 2022-11-15 21:01:51 +01:00
rtc-rx8581.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-rzn1.c rtc: rzn1: Check return value in rzn1_rtc_probe 2022-11-15 21:01:51 +01:00
rtc-s3c.c rtc: s3c: Switch to use dev_err_probe() helper 2022-11-15 21:01:51 +01:00
rtc-s3c.h
rtc-s5m.c rtc: s5m: drop unneeded MODULE_ALIAS 2021-09-25 23:26:37 +02:00
rtc-s35390a.c rtc: s35390a: Remove the unneeded result variable 2022-11-15 21:01:51 +01:00
rtc-sa1100.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-sa1100.h
rtc-sc27xx.c rtc: sc27xx: Fix format of SPDX identifier 2021-07-10 01:53:39 +02:00
rtc-sd3078.c rtc: use simple i2c probe 2022-06-24 21:24:02 +02:00
rtc-sh.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
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: set range max 2022-08-09 00:56:41 +02:00
rtc-st-lpc.c rtc: st-lpc: Add missing clk_disable_unprepare in st_rtc_probe() 2022-12-10 22:36:32 +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: Fix unbalanced clk_disable_unprepare() on probe error path 2021-06-20 22:28:02 +02:00
rtc-stmp3xxx.c rtc: stmp3xxx: Add failure handling for stmp3xxx_wdt_register() 2022-10-13 00:03:11 +02:00
rtc-sun4v.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-sun6i.c rtc: sun6i: Always export the internal oscillator 2023-01-24 00:46:58 +01:00
rtc-sunplus.c rtc: sunplus: fix return value in sp_rtc_probe() 2022-01-16 23:50:34 +01:00
rtc-sunxi.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-tegra.c rtc: tegra: Replace spin_lock_irqsave with spin_lock in hard IRQ 2021-02-06 00:50:47 +01:00
rtc-test.c rtc: test: remove debug message 2020-12-03 23:43:23 +01:00
rtc-ti-k3.c rtc: k3: Use devm_clk_get_enabled() helper 2022-10-13 00:31:57 +02:00
rtc-tps6586x.c rtc: tps6586x: convert to SPDX identifier 2021-07-10 01:53:40 +02:00
rtc-tps65910.c rtc: tps65910: Correct driver module alias 2021-08-17 23:36:22 +02:00
rtc-twl.c
rtc-v3020.c rtc: v3020: remove redundant initialization of variable retval 2021-06-20 22:29:50 +02:00
rtc-vt8500.c rtc: rework rtc_register_device() resource management 2020-11-19 12:50:12 +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: rework rtc_register_device() resource management 2020-11-19 12:50:12 +01:00
rtc-wm8350.c rtc: wm8350: Handle error for wm8350_register_irq 2022-03-23 19:58:38 +01:00
rtc-x1205.c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
rtc-xgene.c rtc: xgene: stop using uie_unsupported 2022-03-23 19:58:41 +01:00
rtc-zynqmp.c rtc: zynqmp: initialize fract_tick 2022-08-08 20:35:41 +02:00
sysfs.c rtc: Include <linux/kstrtox.h> when appropriate 2022-11-15 21:01:51 +01:00