kernel/linux.git/drivers/rtc/rtc-pl031.c, branch v4.19.16

rtc: pl031: make interrupt optional

2017-10-12T14:30:30+00:00

On some platforms, the interrupt for the PL031 is optional. Avoid trying to claim the interrupt if it's not specified. Reviewed-by: Linus Walleij Signed-off-by: Russell King Signed-off-by: Alexandre Belloni

rtc: pl031: avoid exposing alarm if no interrupt

2017-10-12T14:30:25+00:00

If the RTC has no interrupt, there is little point in exposing the RTC alarm capabilities, as it can't be used as a wakeup source nor can it deliver an event to userspace. Signed-off-by: Russell King Reviewed-by: Linus Walleij Signed-off-by: Alexandre Belloni

rtc: pl031: use devm_* for allocating memory and mapping resource

2017-10-12T14:29:49+00:00

Use the devm_* APIs for allocating memory and mapping the memory in the probe function to relieve the driver from having to deal with this in the cleanup paths. Signed-off-by: Russell King Reviewed-by: Linus Walleij Signed-off-by: Alexandre Belloni

rtc: pl031: constify amba_ids

2017-10-12T14:27:28+00:00

The AMBA device IDs should be marked const. Make that so. Reviewed-by: Linus Walleij Signed-off-by: Russell King Signed-off-by: Alexandre Belloni

rtc: pl031: remove misuse of IRQF_NO_SUSPEND flag

2015-11-08T13:12:24+00:00

The IRQF_NO_SUSPEND flag is used to identify the interrupts that should be left enabled so as to allow them to work as expected during the suspend-resume cycle, but doesn't guarantee that it will wake the system from a suspended state, enable_irq_wake is recommended to be used for the wakeup. This patch removes the use of IRQF_NO_SUSPEND flags and uses newly introduce PM wakeup APIs dev_pm_{set,clear}_wake_irq. Cc: Linus Walleij Cc: Alessandro Zummo Cc: Alexandre Belloni Cc: rtc-linux@googlegroups.com Signed-off-by: Sudeep Holla Acked-by: Linus Walleij Signed-off-by: Alexandre Belloni

rtc: pl031: fix typo for author email

2015-09-05T11:19:08+00:00

The email address missed character ">", so add it. Signed-off-by: Leo Yan Signed-off-by: Alexandre Belloni

drivers/rtc/rtc-pl03x.c: remove unnecessary amba_set_drvdata()

2013-11-13T03:09:31+00:00

Driver core clears the driver data to NULL after device_release or on probe failure, so just remove it from here. The relevant driver core change was commit 0998d0631001 ("device-core: Ensure drvdata = NULL when no driver is bound"). Signed-off-by: Michal Simek Cc: Linus Walleij Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rtc: rtc-pl031: Set wakeup flag prior to registering rtcdev

2013-09-18T21:37:50+00:00

In some recent testing, I noticed the CLOCK_REALTIME_ALARM clockid wasn't functioning on my vexpress qemu environment. Looking into it I noticed the pl031 rtc driver doesn't set the wakeup flag on the device until after registering the device with the RTC subsystem. This causes the alarmtimer subsystem to not see the pl031 driver as a valid backing device, and that resuls in alarm clockids getting ENOTSUPP errors. Thus be sure to set the wakeup flag on the device prior to registering the rtcdev so the pl031 rtc driver can be used as the backing alarmtimer device. Cc: Linus Walleij Cc: Alessandro Zummo Cc: "Jon Medhurst (Tixy)" Cc: linux-arm-kernel@lists.infradead.org Acked-by: Linus Walleij Signed-off-by: John Stultz

drivers/rtc/rtc-pl031.c: pass correct pointer to free_irq()

2013-05-24T23:22:52+00:00

free_irq() expects the same pointer that was passed to request_irq(), otherwise the IRQ is not freed. The issue was found using the following coccinelle script: @r1@ type T; T devid; @@ request_irq(..., devid) @r2@ type r1.T; T devid; position p; @@ free_irq@p(..., devid) @@ position p != r2.p; @@ *free_irq@p(...) Signed-off-by: Lars-Peter Clausen Cc: Srinidhi Kasagar Cc: Linus Walleij Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/rtc/rtc-pl031.c: add wakeup support

2013-02-22T01:22:28+00:00

Mark the pl031 as wake-up capable so that rtcwake and suspend test can work. Signed-off-by: Rob Herring Cc: Srinidhi Kasagar Cc: Linus Walleij Cc: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds