Hi, On 10/28/2016 07:19 PM, Leo Yan wrote: > On Fri, Oct 28, 2016 at 06:54:58PM +0900, Jaehoon Chung wrote: > > [...] > >>>>> Could you share the log? Is there any log about failure? >>>> >>>> Sure, please see below log: >>> >>> It's related with -EPROBE_DEFER..I'm not sure but if >>> CONFIG_RESET_CONTROLLER is enabled, it's searching for reset controller. >>> Maybe hi6220 has handled the reset controller(?)... >>> >>> I'm checking devm_reset_control_xxx...It's possible to occur the other >>> boards which enabled RESET_CONTROLLER.. >> >> Could you check the below thing.. >> >> /* find reset controller when exist */ >> - pdata->rstc = devm_reset_control_get_optional(dev, NULL); >> + pdata->rstc = devm_reset_control_get_optional(dev, "dwmci-reset"); >> if (IS_ERR(pdata->rstc)) { >> if (PTR_ERR(pdata->rstc) == -EPROBE_DEFER) >> return ERR_PTR(-EPROBE_DEFER); > > Confirmed with this fixing, the kernel can bootup successfully. > > Thanks for this.
Thanks for checking this..If this approach is not bad, i will send the patch. Or if there are other good approaches, let me know, plz. Best Regards, Jaehoon Chung > >> To prevent the wrong controlling, how about adding "#reset-names" for dwmmc >> controller? >> >> >> Best Regards, >> Jaehoon Chung > > >