From: Linus Walleij <linus.walleij@linaro.org> To: linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 11/11] ARM: versatile: move CLCD configuration to device tree Date: Thu, 25 Feb 2016 15:36:17 +0000 [thread overview] Message-ID: <CACRpkdbi+cJFP8gUvuLKEWVVU_LScZDvnWH59RC7ug-xt2PK4Q@mail.gmail.com> (raw) In-Reply-To: <DF3259B0-8A3A-4AB0-A805-F5A8F7295E5C@konsulko.com> On Thu, Feb 25, 2016 at 3:35 PM, Pantelis Antoniou <pantelis.antoniou@konsulko.com> wrote: >> On Feb 25, 2016, at 15:43 , Linus Walleij <linus.walleij@linaro.org> wrote: >> It also means there is no way to get the console up without the right >> firmware files in the filesystem. I think that is really crap compared >> to what we have today where the display will always come up, and >> basically a regression. >> >> I understand the stance with respect to things like add-on hardware >> like a Bluetooth board or WLAN or whatnot. But the fbdev console >> is just too basic, like a serial port IMO. >> >> Sure in the ARM world we usually have a serial console, but this is >> seriously breaking current practice. > > As Tomi mentioned firmware files can be located in the kernel image; there is no > requirement to be in a filesystem, and that application can be performed really > early, before even early init. Are you thinking about exploiting an appended DT with CONFIG_ARM_APPENDED_DTB or something else? Yours, Linus Walleij
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From: linus.walleij@linaro.org (Linus Walleij) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 11/11] ARM: versatile: move CLCD configuration to device tree Date: Thu, 25 Feb 2016 16:36:17 +0100 [thread overview] Message-ID: <CACRpkdbi+cJFP8gUvuLKEWVVU_LScZDvnWH59RC7ug-xt2PK4Q@mail.gmail.com> (raw) In-Reply-To: <DF3259B0-8A3A-4AB0-A805-F5A8F7295E5C@konsulko.com> On Thu, Feb 25, 2016 at 3:35 PM, Pantelis Antoniou <pantelis.antoniou@konsulko.com> wrote: >> On Feb 25, 2016, at 15:43 , Linus Walleij <linus.walleij@linaro.org> wrote: >> It also means there is no way to get the console up without the right >> firmware files in the filesystem. I think that is really crap compared >> to what we have today where the display will always come up, and >> basically a regression. >> >> I understand the stance with respect to things like add-on hardware >> like a Bluetooth board or WLAN or whatnot. But the fbdev console >> is just too basic, like a serial port IMO. >> >> Sure in the ARM world we usually have a serial console, but this is >> seriously breaking current practice. > > As Tomi mentioned firmware files can be located in the kernel image; there is no > requirement to be in a filesystem, and that application can be performed really > early, before even early init. Are you thinking about exploiting an appended DT with CONFIG_ARM_APPENDED_DTB or something else? Yours, Linus Walleij
next prev parent reply other threads:[~2016-02-25 15:36 UTC|newest] Thread overview: 145+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-02-04 14:04 [PATCH 00/11] CLCD Nomadik+Versatile support Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 01/11] video: ARM CLCD: backlight support for OF Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 02/11] video: ARM CLCD: support DT signal inversion flags Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-17 18:10 ` [02/11] " Ray Jui 2016-02-17 18:10 ` Ray Jui 2016-02-19 8:46 ` Linus Walleij 2016-02-19 8:46 ` Linus Walleij 2016-02-20 1:23 ` Ray Jui 2016-02-20 1:23 ` Ray Jui 2016-02-20 11:46 ` Linus Walleij 2016-02-20 11:46 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 03/11] video: ARM CLCD: support pads connected in reverse order Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 04/11] video: ARM CLCD: support Nomadik variant Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 05/11] video: ARM CLCD: add special board and panel hooks for Nomadik Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 06/11] Documentation/DT: add blurb for IB2 syscon to Versatile Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 07/11] Documentation/DT: add Versatile display bindings Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-17 9:11 ` Tomi Valkeinen 2016-02-17 9:11 ` Tomi Valkeinen 2016-02-18 20:48 ` Linus Walleij 2016-02-18 20:48 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 08/11] video: ARM CLCD: add special panel hook for Versatiles Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 09/11] ARM: PB11MPCore: define a standard VGA panel Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 10/11] ARM: PB1176: " Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-04 14:04 ` [PATCH 11/11] ARM: versatile: move CLCD configuration to device tree Linus Walleij 2016-02-04 14:04 ` Linus Walleij 2016-02-17 9:09 ` Tomi Valkeinen 2016-02-17 9:09 ` Tomi Valkeinen 2016-02-17 9:41 ` Russell King - ARM Linux 2016-02-17 9:41 ` Russell King - ARM Linux 2016-02-17 16:17 ` Linus Walleij 2016-02-17 16:17 ` Linus Walleij 2016-02-17 21:32 ` Russell King - ARM Linux 2016-02-17 21:32 ` Russell King - ARM Linux 2016-02-18 11:52 ` Tomi Valkeinen 2016-02-18 11:52 ` Tomi Valkeinen 2016-02-18 13:12 ` Russell King - ARM Linux 2016-02-18 13:12 ` Russell King - ARM Linux 2016-02-18 13:37 ` Tomi Valkeinen 2016-02-18 13:37 ` Tomi Valkeinen 2016-02-18 20:31 ` Linus Walleij 2016-02-18 20:31 ` Linus Walleij [not found] ` <56C5B080.9090007-l0cyMroinI0@public.gmane.org> 2016-02-21 22:39 ` Linus Walleij 2016-02-21 22:39 ` Linus Walleij 2016-02-21 22:39 ` Linus Walleij [not found] ` <CACRpkdaXFUCR5=5mS28_4Dx_LfzqV13zwT=vVeJwuOzm_rGRBQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2016-02-22 15:41 ` Tomi Valkeinen 2016-02-22 15:41 ` Tomi Valkeinen 2016-02-22 15:41 ` Tomi Valkeinen [not found] ` <56CB2C31.5040703-l0cyMroinI0@public.gmane.org> 2016-02-22 15:54 ` Linus Walleij 2016-02-22 15:54 ` Linus Walleij 2016-02-22 15:54 ` Linus Walleij 2016-02-23 9:08 ` Linus Walleij 2016-02-23 9:08 ` Linus Walleij 2016-02-23 9:34 ` Arnd Bergmann 2016-02-23 9:34 ` Arnd Bergmann 2016-02-23 10:10 ` Linus Walleij 2016-02-23 10:10 ` Linus Walleij 2016-02-23 11:22 ` Arnd Bergmann 2016-02-23 11:22 ` Arnd Bergmann 2016-02-23 13:00 ` Tomi Valkeinen 2016-02-23 13:00 ` Tomi Valkeinen 2016-02-23 13:16 ` Linus Walleij 2016-02-23 13:16 ` Linus Walleij 2016-02-23 13:38 ` Tomi Valkeinen 2016-02-23 13:38 ` Tomi Valkeinen 2016-02-24 10:53 ` Russell King - ARM Linux 2016-02-24 10:53 ` Russell King - ARM Linux 2016-02-24 11:35 ` Tomi Valkeinen 2016-02-24 11:35 ` Tomi Valkeinen 2016-02-25 14:04 ` Linus Walleij 2016-02-25 14:04 ` Linus Walleij 2016-02-25 16:08 ` Arnd Bergmann 2016-02-25 16:08 ` Arnd Bergmann 2016-02-25 16:22 ` Russell King - ARM Linux 2016-02-25 16:22 ` Russell King - ARM Linux 2016-02-25 16:45 ` Tomi Valkeinen 2016-02-25 16:45 ` Tomi Valkeinen 2016-02-25 16:57 ` Russell King - ARM Linux 2016-02-25 16:57 ` Russell King - ARM Linux 2016-02-25 19:30 ` Linus Walleij 2016-02-25 19:30 ` Linus Walleij 2016-02-26 10:47 ` Tomi Valkeinen 2016-02-26 10:47 ` Tomi Valkeinen 2016-03-05 16:57 ` Linus Walleij 2016-03-05 16:57 ` Linus Walleij 2016-03-07 7:36 ` Tomi Valkeinen 2016-03-07 7:36 ` Tomi Valkeinen 2016-02-25 19:32 ` Linus Walleij 2016-02-25 19:32 ` Linus Walleij 2016-02-23 9:58 ` Tomi Valkeinen 2016-02-23 9:58 ` Tomi Valkeinen 2016-02-23 10:32 ` Adam Ford 2016-02-23 10:32 ` Adam Ford 2016-02-23 10:59 ` Pantelis Antoniou 2016-02-23 10:59 ` Pantelis Antoniou 2016-02-23 11:56 ` Peter Maydell 2016-02-23 11:56 ` Peter Maydell 2016-02-23 12:01 ` Russell King - ARM Linux 2016-02-23 12:01 ` Russell King - ARM Linux 2016-02-23 13:45 ` Tom Rini 2016-02-23 13:45 ` Tom Rini 2016-02-23 12:45 ` Tomi Valkeinen 2016-02-23 12:45 ` Tomi Valkeinen 2016-02-23 13:49 ` Peter Maydell 2016-02-23 13:49 ` Peter Maydell 2016-02-24 12:06 ` Tomi Valkeinen 2016-02-24 12:06 ` Tomi Valkeinen 2016-02-24 10:46 ` Russell King - ARM Linux 2016-02-24 10:46 ` Russell King - ARM Linux 2016-02-24 11:21 ` Tomi Valkeinen 2016-02-24 11:21 ` Tomi Valkeinen 2016-02-24 11:35 ` Russell King - ARM Linux 2016-02-24 11:35 ` Russell King - ARM Linux 2016-02-24 11:47 ` Tomi Valkeinen 2016-02-24 11:47 ` Tomi Valkeinen 2016-02-24 12:13 ` Pantelis Antoniou 2016-02-24 12:13 ` Pantelis Antoniou 2016-02-25 13:43 ` Linus Walleij 2016-02-25 13:43 ` Linus Walleij 2016-02-25 13:56 ` Tomi Valkeinen 2016-02-25 13:56 ` Tomi Valkeinen 2016-02-25 14:35 ` Pantelis Antoniou 2016-02-25 14:35 ` Pantelis Antoniou 2016-02-25 15:36 ` Linus Walleij [this message] 2016-02-25 15:36 ` Linus Walleij 2016-02-25 15:40 ` Pantelis Antoniou 2016-02-25 15:40 ` Pantelis Antoniou 2016-02-23 13:08 ` Linus Walleij 2016-02-23 13:08 ` Linus Walleij 2016-02-15 23:34 ` [PATCH 00/11] CLCD Nomadik+Versatile support Linus Walleij 2016-02-15 23:34 ` Linus Walleij 2016-02-16 13:29 ` Tomi Valkeinen 2016-02-16 13:29 ` Tomi Valkeinen 2016-02-16 22:30 ` Linus Walleij 2016-02-16 22:30 ` Linus Walleij
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