>> >>> > > I'm using PCA9564 attached to a ks8695 SoC. During my efforts to get >> >>> > > 2.6.33/34 running on my system I noticed sporadic problems with RTC: >> >>> > >> >>> > [...] >> >>> > >> >>> > > static struct i2c_pca9564_pf_platform_data __initdata pca_data ={ >> >>> > > .gpio = -1, >> >>> > > .i2c_clock_speed = 59000, >> >>> > > .timeout = 1, >> >>> > > }; >> >>> > >> >>> > Commit 8e99ada8deaa9033600cd2c7d0a9366b0e99ab68 changed the timeout settings to >> >>> > jiffies. So, one jiffy as timeout will not work. Try 'HZ' here. >> >>> >> >>> So this means the bug isn't in the mainline kernel tree and I can >> >>> ignore it? >> >> >> >> A confirmation from Yegor would be nice, but his logs let me believe that >> >> this is really the cause. >> >> >> >>> As a side note, arch/blackfin/mach-bf561/boards/acvilon.c sets timeout >> >>> to 10000, so the actual timeout depends on the value of HZ, which is >> >>> probably not desirable. Not to mention that a timeout of over one >> >>> minute (worst case) doesn't seem too smart ;) >> >> >> >> There is also an i2c-gpio-user using non-HZ value. Will prepare patches. >> > >> > Thank for your solution. I'll try it on Tuesday and confirm ASAP. >> >> Wolfram, do you mean so: >> >> static struct i2c_pca9564_pf_platform_data __initdata pca_data ={ >> .gpio = -1, >> .i2c_clock_speed = 59000, >> .timeout = HZ, >> }; >> >> I've tried this, but with the same result. The bus is still not idle. > > That's bad news :(( Did you notice a difference in behaviour? There should be a > 1 second delay now before the message arises... Yes, I can confirm this delay. But apart from these delay I can't see any difference in behavior. Regards, Yegor -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html