kernel/linux.git/drivers/rtc/rtc-sh.c, branch v6.19.11

rtc: sh: stop setting max_user_freq

2025-11-03T13:38:38+00:00

max_user_freq has not been related to the hardware RTC since commit 6610e0893b8b ("RTC: Rework RTC code to use timerqueue for events"). Stop setting it from individual driver to avoid confusing new contributors. Reviewed-by: Wolfram Sang Link: https://patch.msgid.link/20251101-max_user_freq-v1-11-c9a274fd6883@bootlin.com Signed-off-by: Alexandre Belloni

rtc: sh: Convert to DEFINE_SIMPLE_DEV_PM_OPS()

2025-07-22T10:59:22+00:00

Convert the Renesas SuperH On-Chip RTC driver from SIMPLE_DEV_PM_OPS() to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr(). This lets us drop the __maybe_unused annotations from its suspend and resume callbacks, and reduces kernel size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/396d4a769b8d3c6fec43c65022cdfd8a6854524a.1752086758.git.geert+renesas@glider.be Signed-off-by: Alexandre Belloni

rtc: sh: minor fixes to adhere to coding style

2025-04-08T13:56:19+00:00

Use the BIT macro, use curly braces for else-blocks, don't split strings over multiple lines, annotate the lock, update copyright. Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-18-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: sh: use local variables in probe() for mapping IO

2025-04-08T13:56:19+00:00

No need to store the resource for the registers in the per-device struct because we only need it during probe. Remove some unneeded unlikely() while here and correct the type of 'regsize'. Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-17-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: sh: remove useless wrapper function

2025-04-08T13:56:19+00:00

The wrapper to enable interrupts is so thin that we can use it directly. Also gets rid of an 'inline' which doesn't make sense here. Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-16-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: sh: simplify irq setup after refactoring

2025-04-08T13:56:19+00:00

We only need the alarm_irq handler. That means we can remove everything related to periodic_irq and carry_irq. Also, the shared handler can go since we only we need the alarm interrupt in any case. Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-15-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: sh: remove periodic interrupt handling

2025-04-08T13:56:19+00:00

Because periodic interrupts are emulated by the RTC core, the PIE handling code can simply go away now. And with it the custom proc-file. Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-14-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: sh: only disable carry interrupts in probe()

2025-04-08T13:56:19+00:00

With old, custom UIE handling removed, we can now disable the carry interrupt in probe() and leave it like this. No further handling is required. Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-13-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: sh: remove update interrupt handling

2025-04-08T13:56:19+00:00

Since commit e428c6a2772b ("RTC: Clean out UIE icotl implementations"), the flag for UIE cannot be set anymore. Because UIE is now handled via regular alarms and a timerqueue by the RTC core, the UIE handling code can simply go away now. Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-12-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni

rtc: sh: assign correct interrupts with DT

2025-04-08T13:56:18+00:00

The DT bindings for this driver define the interrupts in the order as they are numbered in the interrupt controller. The old platform_data, however, listed them in a different order. So, for DT based platforms, they are mixed up. Assign them specifically for DT, so we can keep the bindings stable. After the fix, 'rtctest' passes again on the Renesas Genmai board (RZ-A1 / R7S72100). Fixes: dab5aec64bf5 ("rtc: sh: add support for rza series") Signed-off-by: Wolfram Sang Link: https://lore.kernel.org/r/20250227134256.9167-11-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni