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Date: Thu, 28 Jul 2022 16:48:35 +0200 From: Arnd Bergmann <arnd@...db.de> To: Markuss Broks <markuss.broks@...il.com> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, Jonathan Corbet <corbet@....net>, Ard Biesheuvel <ardb@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jiri Slaby <jirislaby@...nel.org>, Helge Deller <deller@....de>, "Paul E. McKenney" <paulmck@...nel.org>, Borislav Petkov <bp@...e.de>, Andrew Morton <akpm@...ux-foundation.org>, Kees Cook <keescook@...omium.org>, Randy Dunlap <rdunlap@...radead.org>, Damien Le Moal <damien.lemoal@...nsource.wdc.com>, Thomas Zimmermann <tzimmermann@...e.de>, Javier Martinez Canillas <javierm@...hat.com>, Michal Suchanek <msuchanek@...e.de>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Arnd Bergmann <arnd@...db.de>, Wei Ming Chen <jj251510319013@...il.com>, Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>, Tony Lindgren <tony@...mide.com>, "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>, linux-efi <linux-efi@...r.kernel.org>, "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>, Linux Fbdev development list <linux-fbdev@...r.kernel.org>, dri-devel <dri-devel@...ts.freedesktop.org>, Rob Herring <robh@...nel.org> Subject: Re: [PATCH 2/2] efi: earlycon: Add support for generic framebuffers and move to fbdev subsystem On Thu, Jul 28, 2022 at 4:28 PM Markuss Broks <markuss.broks@...il.com> wrote: > > Add early console support for generic linear framebuffer devices. > This driver supports probing from cmdline early parameters > or from the device-tree using information in simple-framebuffer node. > The EFI functionality should be retained in whole. > The driver was disabled on ARM because of a bug in early_ioremap > implementation on ARM. > > Signed-off-by: Markuss Broks <markuss.broks@...il.com> > --- > .../admin-guide/kernel-parameters.txt | 12 +- > MAINTAINERS | 5 + > drivers/firmware/efi/Kconfig | 6 +- > drivers/firmware/efi/Makefile | 1 - > drivers/firmware/efi/earlycon.c | 246 -------------- > drivers/video/fbdev/Kconfig | 11 + > drivers/video/fbdev/Makefile | 1 + > drivers/video/fbdev/earlycon.c | 301 ++++++++++++++++++ It looks like this is not actually related to fbdev, and since drivers are moving from fbdev/simplefb towards drm/simpledrm, maybe it would be better to put this into either drivers/gpu/drm/tiny/ or possibly drivers/video/console to let this be used without enabling fbdev? Arnd
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