From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Lokesh Vutla <lokeshvutla-l0cyMroinI0@public.gmane.org>
Cc: Linux OMAP Mailing List
<linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Device Tree Mailing List
<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Tero Kristo <t-kristo-l0cyMroinI0@public.gmane.org>,
Sekhar Nori <nsekhar-l0cyMroinI0@public.gmane.org>,
Vignesh R <vigneshr-l0cyMroinI0@public.gmane.org>,
Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
Subject: Re: [PATCH 1/5] ARM: OMAP2+: omap_hwmod: Add support for earlycon
Date: Wed, 18 Jan 2017 09:00:34 -0800 [thread overview]
Message-ID: <20170118170033.GD7403@atomide.com> (raw)
In-Reply-To: <88830967-6e83-33fc-8a1c-d776fd694e2f-l0cyMroinI0@public.gmane.org>
* Lokesh Vutla <lokeshvutla-l0cyMroinI0@public.gmane.org> [170117 19:50]:
>
>
> On Wednesday 18 January 2017 04:53 AM, Tony Lindgren wrote:
> > * Lokesh Vutla <lokeshvutla-l0cyMroinI0@public.gmane.org> [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?
Regards,
Tony
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next prev parent reply other threads:[~2017-01-18 17:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-17 4:03 [PATCH 0/5] ARM: OMAP2+: Add earlycon support Lokesh Vutla
[not found] ` <20170117040336.21700-1-lokeshvutla-l0cyMroinI0@public.gmane.org>
2017-01-17 4:03 ` [PATCH 1/5] ARM: OMAP2+: omap_hwmod: Add support for earlycon Lokesh Vutla
[not found] ` <20170117040336.21700-2-lokeshvutla-l0cyMroinI0@public.gmane.org>
2017-01-17 10:47 ` Mark Rutland
2017-01-17 13:47 ` Lokesh Vutla
2017-01-17 23:23 ` Tony Lindgren
[not found] ` <20170117232310.GX7403-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-01-18 3:47 ` Lokesh Vutla
[not found] ` <88830967-6e83-33fc-8a1c-d776fd694e2f-l0cyMroinI0@public.gmane.org>
2017-01-18 17:00 ` Tony Lindgren [this message]
[not found] ` <20170118170033.GD7403-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-01-19 10:05 ` Lokesh Vutla
[not found] ` <61578446-3a10-55ab-dac9-0a95b6e2c77c-l0cyMroinI0@public.gmane.org>
2017-01-19 14:56 ` Tony Lindgren
2017-01-17 4:03 ` [PATCH 2/5] ARM: dts: am33xx: Add stdout-path property Lokesh Vutla
2017-01-17 4:03 ` [PATCH 3/5] ARM: dts: am43xx: " Lokesh Vutla
2017-01-17 4:03 ` [PATCH 4/5] ARM: dts: am57xx: " Lokesh Vutla
2017-01-17 4:03 ` [PATCH 5/5] ARM: dts: dra7xx: " Lokesh Vutla
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