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If the driver is built as a module, autoload won't work because the module
alias information is not filled so user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/rtc/rtc-asm9260.ko | grep alias
$
After this patch:
$ modinfo drivers/rtc/rtc-asm9260.ko | grep alias
alias: of:N*T*Calphascale,asm9260-rtcC*
alias: of:N*T*Calphascale,asm9260-rtc
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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The rtc-asm9260 driver uses a discrete spinlock (wrongly uninitialized).
Use the rtc mutex to lock mmio accesses instead.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Remove .owner field if calls are used which set it automatically.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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The probe and remove callbacks of the platform driver are marked __init
and __exit, respectively. However, this is not a correct way to annotate
them, as it will result in those sections to be discarded at link time
or after boot, while we can actually call them again based on manual
unbinding, or deferred probing.
Kbuild warns about the problem:
WARNING: drivers/rtc/rtc-asm9260.o(.data+0x0): Section mismatch in reference from the variable asm9260_rtc_driver to the function .init.text:asm9260_rtc_probe()
This removes the annotations, so we no longer branch into missing
code and avoid the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 125e550fd257 ("rtc: add Alphascale asm9260 driver")
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Add support for RTC controller found on Alphascale asm9260
SoC.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Javier Martinez Canillas
Alexandre Belloni
Wei Yongjun
Arnd Bergmann
Oleksij Rempel