On Wed, Oct 23, 2019 at 09:06:29PM +0200, Helge Deller wrote:

On 23.10.19 17:22, Alexandre Belloni wrote:

quoted

On 23/10/2019 16:25:02+0200, Arnd Bergmann wrote:

quoted

The driver contains half of the implementation of /dev/rtc, but this
was never completed, and it is now incompatible with the drivers/rtc
framework.

Remove the chardev completely. If anyone wants to add the functionality
later, that shoudl be done through rtc_register_device().

The remaining portions of the driver basically implement a single
procfs file that may or may not be used anywhere. Not sure why this
is in drivers/input/ though.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

A year ago I did actually converted this driver to the RTC framework.
But after some testing on my physical box (a 715/64 PA-RISC machine
with HIL connector) I realized that the SDC in that machine doesn't
provide a functional RTC, and even more important, on that box we don't
need this RTC because the system provides a built-in RTC on-mainboard instead.
So, I never pushed my changes upstream, which can still be found here:
https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git/commit/?h=hp_sdc_rtc_conversion&id=0d4250dbcfa2bb8b326ce7721e19e10a66f1eb92

So, I don't think any PA-RISC machine needs this driver, and as such
I'm happy to give my:
Acked-by: Helge Deller <deller@gmx.de>

Applied, thank you.

I even think the whole driver can go away...

Helge

PS: Maybe some really old 68000-based HP machines needed that, but
I don't know if any recent Linux kernel runs on those old boxes any
longer...

Well, if you think it is unlikely that we need this driver just send me
a patch. We can always restore it if someone yells.

Thanks.

-- 
Dmitry