* Geert Uytterhoeven geert@linux-m68k.org [191115 15:51]:
On Fri, Nov 15, 2019 at 1:01 PM Andreas Färber afaerber@suse.de wrote:
Am 15.11.19 um 09:58 schrieb Geert Uytterhoeven:
We do our best to use it solely for detecting quirks in early SoC revisions.
Got a pointer? I fail to immediately understand how sysfs would help drivers (as opposed to userspace) detect quirks: Parsing strings back doesn't sound efficient, and I don't see you exporting any custom APIs in drivers/soc/renesas/renesas-soc.c?
We use soc_device_match(), inside kernel drivers. Exposure through sysfs is a side-effect of using soc_device_register(), and welcomed, as it allows the user to find out quickly which SoC and revision is being used.
For the omap variants too, we've so far gotten away with early SoC detection for platform code, and then use soc_device_match() in few cases for drivers at probe time if needed.
Regards,
Tony