* Lokesh Vutla <lokeshvutla@xxxxxx> [170119 02:08]: > > > On Wednesday 18 January 2017 10:30 PM, Tony Lindgren wrote: > > * Lokesh Vutla <lokeshvutla@xxxxxx> [170117 19:50]: > >> > >> > >> On Wednesday 18 January 2017 04:53 AM, Tony Lindgren wrote: > >>> * Lokesh Vutla <lokeshvutla@xxxxxx> [170116 20:06]: > >>>> Hwmod core tries to reset and idles each IP that is registered with hwmod. > >>>> In case of earlycon, that specific uart IP cannot be reset or keep it in > >>>> idle state else earlycon hangs once hwmod resets that uart IP. So add support > >>>> to not reset uart that is being used as earlycon only if CONFIG_SERIAL_EARLYCON > >>>> is enabled. > >>> > >>> Nice :) > >>> > >>> I guess this has no dependency to SERIAL_OMAP vs 8250_OMAP selection? > >> > >> Unfortunately SERIAL_OMAP does not support earlycon yet. As I mentioned > >> in my cover letter, I verified this series only with 8250_OMAP. > > > > OK. So just to understand why it would not work with omap-serial, do we > > need something implemented in drivers/tty/serial/earlycon.c for non 8250 > > drivers to make it work? Or are there other dependencies? > > Yeah, OF_EARLYCON_DECLARE should be declared for omap-serial. Just > posted a patch[1] adding support for earlycon in omap-serial. OK great. And with Vignesh's fix for omap5, I think we then have 8250-omap and omap-serial behaving the same way on all SoC variants. Regards, Tony > [1] https://patchwork.kernel.org/patch/9525377/ -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
