From: Tomi Valkeinen <tomi.valkeinen@ti.com>
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 13:56:48 +0000 [thread overview]
Message-ID: <56CF0820.1010602@ti.com> (raw)
In-Reply-To: <CACRpkdZ=PR6O28NQusUEipCYwRZyuhbeAJO_ZK80+4H7Zakt=g@mail.gmail.com>
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On 25/02/16 15:43, Linus Walleij wrote:
> On Wed, Feb 24, 2016 at 1:13 PM, Pantelis Antoniou
> <pantelis.antoniou@konsulko.com> wrote:
>
>> IMHO DT+overlays handle all your cases just fine.
>>
>> As far as I see these are the cases which we need to handle:
>>
>> 1) The expansion board in question has some means of identification, whether it’s an
>> EEPROM or a GPIO keying combination etc. In that case it is the kernel’s job to match this
>> id value with a dtbo firmware file and apply it. The blob is located via means of request_firmware().
>
> Since the dawn of time the x86 people used that console to display
> the early boot crawl and collect crash data. What you're suggesting
> is that we can't get the console up until after the filesystems and mounts
> are up so the kernel can read firmware files.
You can build firmware images into the kernel image. No, I don't like
that either.
The 2.2) option in Pantelis' mail can be used for 1) too, although then
the bootloader needs to know which dtbos to add.
Tomi
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From: tomi.valkeinen@ti.com (Tomi Valkeinen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 11/11] ARM: versatile: move CLCD configuration to device tree
Date: Thu, 25 Feb 2016 15:56:48 +0200 [thread overview]
Message-ID: <56CF0820.1010602@ti.com> (raw)
In-Reply-To: <CACRpkdZ=PR6O28NQusUEipCYwRZyuhbeAJO_ZK80+4H7Zakt=g@mail.gmail.com>
On 25/02/16 15:43, Linus Walleij wrote:
> On Wed, Feb 24, 2016 at 1:13 PM, Pantelis Antoniou
> <pantelis.antoniou@konsulko.com> wrote:
>
>> IMHO DT+overlays handle all your cases just fine.
>>
>> As far as I see these are the cases which we need to handle:
>>
>> 1) The expansion board in question has some means of identification, whether it?s an
>> EEPROM or a GPIO keying combination etc. In that case it is the kernel?s job to match this
>> id value with a dtbo firmware file and apply it. The blob is located via means of request_firmware().
>
> Since the dawn of time the x86 people used that console to display
> the early boot crawl and collect crash data. What you're suggesting
> is that we can't get the console up until after the filesystems and mounts
> are up so the kernel can read firmware files.
You can build firmware images into the kernel image. No, I don't like
that either.
The 2.2) option in Pantelis' mail can be used for 1) too, although then
the bootloader needs to know which dtbos to add.
Tomi
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next prev parent reply other threads:[~2016-02-25 13:56 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
2016-02-21 22:39 ` Linus Walleij
2016-02-21 22:39 ` Linus Walleij
2016-02-21 22:39 ` Linus Walleij
2016-02-22 15:41 ` Tomi Valkeinen
2016-02-22 15:41 ` Tomi Valkeinen
2016-02-22 15:41 ` Tomi Valkeinen
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 [this message]
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
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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