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linux/drivers/rtc
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Joy Chakraborty 5570209a65 rtc: abx80x: Fix return value of nvmem callback on read 
commit fc82336b50e7652530bc32caec80be0f8792513b upstream.

Read callbacks registered with nvmem core expect 0 to be returned on
success and a negative value to be returned on failure.

abx80x_nvmem_xfer() on read calls i2c_smbus_read_i2c_block_data() which
returns the number of bytes read on success as per its api description,
this return value is handled as an error and returned to nvmem even on
success.

Fix to handle all possible values that would be returned by
i2c_smbus_read_i2c_block_data().

Fixes: e90ff8ede777 ("rtc: abx80x: Add nvmem support")
Cc: stable@vger.kernel.org
Signed-off-by: Joy Chakraborty <joychakr@google.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20240613120750.1455209-1-joychakr@google.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-08-03 09:00:54 +02:00
..
class.c
rtc: class: make rtc_class constant
2024-03-08 12:05:10 +01:00
dev.c
rtc: Remove unused rtc_dev_exit().
2022-06-24 21:24:02 +02:00
interface.c
rtc: interface: Add RTC offset to alarm after fix-up
2024-08-03 09:00:25 +02:00
Kconfig
rtc: Add driver for Epson RX8111
2024-04-17 01:45:33 +02:00
lib_test.c
rtc: test: Split rtc unit test into slow and normal speed test
2024-03-29 15:58:45 +01:00
lib.c
rtc: Improve performance of rtc_time64_to_tm(). Add tests.
2021-08-10 00:09:21 +02:00
Makefile
rtc: Add driver for Epson RX8111
2024-04-17 01:45:33 +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: 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-ab8500.c
rtc: ab8500: 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-abx80x.c
rtc: abx80x: Fix return value of nvmem callback on read
2024-08-03 09:00:54 +02:00
rtc-ac100.c
rtc: ac100: remove misuses of kernel-doc
2024-01-15 22:27:35 +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: 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: 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: cmos: Fix return value of nvmem callbacks
2024-08-03 09:00:50 +02:00
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: provide ID table for avoiding fallback match
2024-03-29 15:46:08 +01:00
rtc-da9052.c
…
rtc-da9055.c
…
rtc-da9063.c
rtc: da9063: Use dev_err_probe()
2024-01-18 01:00:21 +01:00
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
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
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: ds1511: set alarm offset limit
2024-02-29 22:16:52 +01:00
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: ds3232: avoid unused-const-variable warning
2024-01-08 01:15:49 +01:00
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
clocksource/drivers: Add a goldfish-timer clocksource
2022-04-11 11:48:01 +02:00
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 return value of nvmem callbacks
2024-08-03 09:00:54 +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: m41t80: Use the unified property API get the wakeup-source property
2024-02-29 22:28:19 +01:00
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-ma35d1.c
rtc: ma35d1: remove hardcoded UIE support
2024-01-08 01:33:27 +01:00
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-max31335.c
rtc: max31335: fix interrupt status reg
2024-02-29 22:40:33 +01:00
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: Extend timeout for waiting for UIP to clear to 1s
2023-12-17 22:33:55 +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: Use ktime_get_real_ts64() to get the current time
2023-03-21 21:15:10 +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: 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_v2.c
rtc: mxc_v2: Convert to platform remove callback returning void
2023-03-17 23:03:17 +01:00
rtc-mxc.c
rtc: Explicitly include correct DT includes
2023-07-27 23:31:29 +02:00
rtc-nct3018y.c
rtc: nuvoton: Modify part number value
2024-03-29 15:59:02 +01:00
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: 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 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: pcf8523: add suspend handlers for alarm IRQ
2024-02-29 22:17:23 +01:00
rtc-pcf8563.c
pcf8563: add wakeup-source support
2024-05-07 23:40:46 +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: pl031: fix rtc features null pointer dereference
2022-03-23 19:58:37 +01:00
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: add wakeup-source support
2024-01-15 22:29:48 +01:00
rtc-rx4581.c
…
rtc-rx6110.c
rtc: rx6110: Constify struct regmap_config
2024-05-07 23:39:19 +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-rx8111.c
rtc: rx8111: handle VLOW flag
2024-05-07 23:40:10 +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: sc27xx: Fix format of SPDX identifier
2021-07-10 01:53:39 +02:00
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-tps6594.c
rtc: tps6594: Fix memleak in probe
2024-08-03 09:00:23 +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