kernel/linux.git/drivers/rtc/rtc-ab-eoz9.c, branch v6.1.168

rtc: ab-eoz9: don't fail temperature reads on undervoltage notification

2024-12-14T18:54:09+00:00

[ Upstream commit e0779a0dcf41a6452ac0a169cd96863feb5787c7 ] The undervoltage flags reported by the RTC are useful to know if the time and date are reliable after a reboot. Although the threshold VLOW1 indicates that the thermometer has been shutdown and time compensation is off, it doesn't mean that the temperature readout is currently impossible. As the system is running, the RTC voltage is now fully established and we can read the temperature. Fixes: 67075b63cce2 ("rtc: add AB-RTCMC-32.768kHz-EOZ9 RTC support") Signed-off-by: Maxime Chevallier Link: https://lore.kernel.org/r/20241122101031.68916-3-maxime.chevallier@bootlin.com Signed-off-by: Alexandre Belloni Signed-off-by: Sasha Levin

rtc: use simple i2c probe

2022-06-24T19:24:02+00:00

All these drivers have an i2c probe function which doesn't use the "struct i2c_device_id *id" parameter, so they can trivially be converted to the "probe_new" style of probe with a single argument. This change was done using the following Coccinelle script, and fixed up for whitespace changes: @ rule1 @ identifier fn; identifier client, id; @@ - static int fn(struct i2c_client *client, const struct i2c_device_id *id) + static int fn(struct i2c_client *client) { ...when != id } @ rule2 depends on rule1 @ identifier rule1.fn; identifier driver; @@ struct i2c_driver driver = { - .probe + .probe_new = ( fn | - &fn + fn ) , }; Signed-off-by: Stephen Kitt Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20220610162346.4134094-1-steve@sk2.org

rtc: ab-eoz9: support UIE when available

2021-11-09T23:45:57+00:00

The RTC actually supports UIE when an interrupt is available. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211107225458.111068-5-alexandre.belloni@bootlin.com

rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT

2021-11-09T23:45:57+00:00

Switch from uie_unsupported to RTC_FEATURE_UPDATE_INTERRUPT Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211107225458.111068-4-alexandre.belloni@bootlin.com

rtc: ab-eoz9: make use of RTC_FEATURE_ALARM

2021-04-16T22:07:16+00:00

Move the alarm callbacks in rtc_ops and use RTC_FEATURE_ALARM to notify the core whether alarm capabilities are available or not. Signed-off-by: Liam Beguin Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210408024028.3526564-4-liambeguin@gmail.com

rtc: ab-eoz9: add alarm support

2021-04-16T22:07:16+00:00

Add alarm support for the rtc-ab-eoz9. Signed-off-by: Liam Beguin Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210408024028.3526564-3-liambeguin@gmail.com

rtc: ab-eoz9: set regmap max_register

2021-04-16T22:07:16+00:00

Set regmap's max_register property to allow users to dump registers using debufgs. Signed-off-by: Liam Beguin Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210408024028.3526564-2-liambeguin@gmail.com

rtc: rework rtc_register_device() resource management

2020-11-19T11:50:12+00:00

rtc_register_device() is a managed interface but it doesn't use devres by itself - instead it marks an rtc_device as "registered" and the devres callback for devm_rtc_allocate_device() takes care of resource release. This doesn't correspond with the design behind devres where managed structures should not be aware of being managed. The correct solution here is to register a separate devres callback for unregistering the device. While at it: rename rtc_register_device() to devm_rtc_register_device() and add it to the list of managed interfaces in devres.rst. This way we can avoid any potential confusion of driver developers who may expect there to exist a corresponding unregister function. Signed-off-by: Bartosz Golaszewski Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201109163409.24301-8-brgl@bgdev.pl

rtc: remove superfluous error message

2019-08-21T07:57:23+00:00

The RTC core now has error messages in case of registration failure, there is no need to have other messages in the drivers. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20190818220041.17833-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni

rtc: add AB-RTCMC-32.768kHz-EOZ9 RTC support

2019-02-18T21:39:30+00:00

This patch adds support for AB-RTCMC-32.768kHz-EOZ9 RTC/Calendar module with I2C interface. Signed-off-by: Artem Panfilov Signed-off-by: Alexandre Belloni