kernel/linux.git/drivers/rtc/rtc-amlogic-a4.c, branch v7.0.10

rtc: amlogic-a4: Remove IRQF_ONESHOT

2026-02-01T16:37:16+00:00

Passing IRQF_ONESHOT ensures that the interrupt source is masked until the secondary (threaded) handler is done. If only a primary handler is used then the flag makes no sense because the interrupt can not fire (again) while its handler is running. The flag also prevents force-threading of the primary handler and the irq-core will warn about this. Remove IRQF_ONESHOT from irqflags. Fixes: c89ac9182ee29 ("rtc: support for the Amlogic on-chip RTC") Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Thomas Gleixner Reviewed-by: Xianwei Zhao Link: https://patch.msgid.link/20260128095540.863589-13-bigeasy@linutronix.de

rtc: amlogic-a4: simplify probe

2025-11-03T13:34:19+00:00

Use devm_device_init_wakeup to simplify probe and remove .remove as it is now empty. Also remove the unnecessary error string as there are no error path without an error message in devm_rtc_register_device. Reviewed-by: Xianwei Zhao Link: https://patch.msgid.link/20251031204724.756857-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni

rtc: amlogic-a4: fix double free caused by devm

2025-10-31T14:10:01+00:00

The clock obtained via devm_clk_get_enabled() is automatically managed by devres and will be disabled and freed on driver detach. Manually calling clk_disable_unprepare() in error path and remove function causes double free. Remove the redundant clk_disable_unprepare() calls from the probe error path and aml_rtc_remove(), allowing the devm framework to automatically manage the clock lifecycle. Fixes: c89ac9182ee2 ("rtc: support for the Amlogic on-chip RTC") Signed-off-by: Haotian Zhang Reviewed-by: Xianwei Zhao Link: https://patch.msgid.link/20251021103559.1903-1-vulab@iscas.ac.cn Signed-off-by: Alexandre Belloni

rtc: amlogic-a4: Optimize global variables

2025-10-05T21:11:00+00:00

Convert a global variable into a local one of aml_rtc_probe(). Signed-off-by: Xianwei Zhao Link: https://lore.kernel.org/r/20250722-rtc-regmap-v2-1-58bc17187a11@amlogic.com Signed-off-by: Alexandre Belloni

rtc: use boolean values with device_init_wakeup()

2025-01-09T17:29:24+00:00

device_init_wakeup() second argument is a bool type. Use proper boolean values when calling it to match the type and to produce unambiguous code which is easier to understand. Signed-off-by: Wolfram Sang Reviewed-by: Charles Keepax Reviewed-by: Andre Przywara Link: https://lore.kernel.org/r/20241217071331.3607-2-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: amlogic-a4: fix compile error

2024-11-13T20:48:27+00:00

When compile rtc-a4, build error as following: ERROR: modpost: drivers/rtc/rtc-amlogic-a4: struct of_device_id is not terminated with a NULL entry! This commit is to fix it. Fixes: c89ac9182ee2 ("rtc: support for the Amlogic on-chip RTC") Reported-by: Stephen Rothwell Signed-off-by: Xianwei Zhao Link: https://lore.kernel.org/r/20241113-fix_a4_rtc-v1-1-307af26449a8@amlogic.com Signed-off-by: Alexandre Belloni

rtc: amlogic-a4: drop error messages

2024-11-12T16:43:21+00:00

Drop error message because there is a high probability they will never be seen and the final user action is clear, the time has to be set again. Reviewed-by: Neil Armstrong Link: https://lore.kernel.org/r/20241112143652.3445648-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni

rtc: support for the Amlogic on-chip RTC

2024-11-12T14:05:31+00:00

This is the third amlogic driver. The RTC hardware of A4 SoC is different from the previous one. This RTC hardware includes a timing function and an alarm function. But the existing has only timing function, alarm function is using the system clock to implement a virtual alarm. Add the RTC driver to support it. Signed-off-by: Yiting Deng Signed-off-by: Xianwei Zhao Link: https://lore.kernel.org/r/20241112-rtc-v6-2-a71b60d2f354@amlogic.com Signed-off-by: Alexandre Belloni