On Thu 2018-10-04 18:08:08, Lubomir Rintel wrote: > On OLPC XO-1 we're discovering the RTC via device tree from the arch > initcall. Don't let the PC platform register another one from its > device initcall, it's not going to work: > > sysfs: cannot create duplicate filename '/devices/platform/rtc_cmos' > CPU: 0 PID: 1 Comm: swapper Not tainted 4.19.0-rc6 #12 > Hardware name: OLPC XO/XO, BIOS OLPC Ver 1.00.01 06/11/2014 > Call Trace: > dump_stack+0x16/0x18 > sysfs_warn_dup+0x46/0x58 > sysfs_create_dir_ns+0x76/0x9b > kobject_add_internal+0xed/0x209 > ? __schedule+0x3fa/0x447 > kobject_add+0x5b/0x66 > device_add+0x298/0x535 > ? insert_resource_conflict+0x2a/0x3e > platform_device_add+0x14d/0x192 > ? io_delay_init+0x19/0x19 > platform_device_register+0x1c/0x1f > add_rtc_cmos+0x16/0x31 > do_one_initcall+0x78/0x14a > ? do_early_param+0x75/0x75 > kernel_init_freeable+0x152/0x1e0 > ? rest_init+0xa2/0xa2 > kernel_init+0x8/0xd5 > ret_from_fork+0x2e/0x38 > kobject_add_internal failed for rtc_cmos with -EEXIST, don't try to > register things with the same name in the same directory. > platform rtc_cmos: registered platform RTC device (no PNP device found) > > Signed-off-by: Lubomir Rintel <lkund...@v3.sk>
Acked-by: Pavel Machek <pa...@ucw.cz> -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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