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From: Linus Walleij <linus.walleij@linaro.org>
To: Peter Collingbourne <pcc@google.com>,
	John Stultz <john.stultz@linaro.org>
Cc: Daniel Vetter <daniel@ffwll.ch>,
	Neil Armstrong <narmstrong@baylibre.com>,
	 Eric Anholt <emma@anholt.net>,
	Kevin Brodsky <kevin.brodsky@arm.com>,
	 Russell King <linux@armlinux.org.uk>,
	ML dri-devel <dri-devel@lists.freedesktop.org>,
	 Sean Paul <sean@poorly.run>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] Revert "video: fbdev: amba-clcd: Retire elder CLCD driver"
Date: Sun, 5 Dec 2021 14:34:16 +0100	[thread overview]
Message-ID: <CACRpkdYGG-6OoWD29Jqo9dnhfWc2KMxpbCdRRYRmpuciiVrLAw@mail.gmail.com> (raw)
In-Reply-To: <CAMn1gO7w1wUo3e9vUmGeF7fp0K9mq2ydSskX2xD3H=Kndzhc+A@mail.gmail.com>

Hi Peter,

[Paging John Stultz on this]

On Tue, Sep 29, 2020 at 6:30 PM Peter Collingbourne <pcc@google.com> wrote:
> On Tue, Sep 29, 2020 at 2:32 AM Daniel Vetter <daniel@ffwll.ch> wrote:
> > On Tue, Sep 29, 2020 at 09:28:56AM +0200, Neil Armstrong wrote:

> > > Can't Android FVP use drm-hwcomposer instead ?
>
> Not without kernel changes. See e.g.
> https://www.spinics.net/lists/dri-devel/msg255883.html

Has this gotten better in the last year+ so you can now use
drm-hwcomposer?

I.e. can we now delete the fbdev driver?

> > Also, if we need to add more random fbdev ioctls to the drm fbdev
> > emulation, then let's do that. Not keep fbdev drivers on life support for
> > longer than necessary.

I wanted to fix this and started to look at it at one point,
however the required Android userspace build was a bit
intimidating to get going. I would be able to look into this
if a prebuilt Android for the emulation model was available.

Yours,
Linus Walleij

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Linus Walleij <linus.walleij@linaro.org>
To: Peter Collingbourne <pcc@google.com>,
	John Stultz <john.stultz@linaro.org>
Cc: Eric Anholt <emma@anholt.net>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Kevin Brodsky <kevin.brodsky@arm.com>,
	Russell King <linux@armlinux.org.uk>,
	ML dri-devel <dri-devel@lists.freedesktop.org>,
	Sean Paul <sean@poorly.run>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] Revert "video: fbdev: amba-clcd: Retire elder CLCD driver"
Date: Sun, 5 Dec 2021 14:34:16 +0100	[thread overview]
Message-ID: <CACRpkdYGG-6OoWD29Jqo9dnhfWc2KMxpbCdRRYRmpuciiVrLAw@mail.gmail.com> (raw)
In-Reply-To: <CAMn1gO7w1wUo3e9vUmGeF7fp0K9mq2ydSskX2xD3H=Kndzhc+A@mail.gmail.com>

Hi Peter,

[Paging John Stultz on this]

On Tue, Sep 29, 2020 at 6:30 PM Peter Collingbourne <pcc@google.com> wrote:
> On Tue, Sep 29, 2020 at 2:32 AM Daniel Vetter <daniel@ffwll.ch> wrote:
> > On Tue, Sep 29, 2020 at 09:28:56AM +0200, Neil Armstrong wrote:

> > > Can't Android FVP use drm-hwcomposer instead ?
>
> Not without kernel changes. See e.g.
> https://www.spinics.net/lists/dri-devel/msg255883.html

Has this gotten better in the last year+ so you can now use
drm-hwcomposer?

I.e. can we now delete the fbdev driver?

> > Also, if we need to add more random fbdev ioctls to the drm fbdev
> > emulation, then let's do that. Not keep fbdev drivers on life support for
> > longer than necessary.

I wanted to fix this and started to look at it at one point,
however the required Android userspace build was a bit
intimidating to get going. I would be able to look into this
if a prebuilt Android for the emulation model was available.

Yours,
Linus Walleij

  parent reply	other threads:[~2021-12-05 13:35 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-28 20:08 [PATCH] Revert "video: fbdev: amba-clcd: Retire elder CLCD driver" Peter Collingbourne
2020-09-28 20:08 ` Peter Collingbourne
2020-09-29  7:28 ` Neil Armstrong
2020-09-29  7:28   ` Neil Armstrong
2020-09-29  9:32   ` Daniel Vetter
2020-09-29  9:32     ` Daniel Vetter
2020-09-29 16:30     ` Peter Collingbourne
2020-09-29 16:30       ` Peter Collingbourne
2020-09-29 16:48       ` Daniel Vetter
2020-09-29 16:48         ` Daniel Vetter
2020-09-29 16:52         ` Daniel Vetter
2020-09-29 16:52           ` Daniel Vetter
2020-09-29 17:49           ` Peter Collingbourne
2020-09-29 17:49             ` Peter Collingbourne
2020-09-29 18:41             ` Daniel Vetter
2020-09-29 18:41               ` Daniel Vetter
2020-09-29 18:44             ` Daniel Vetter
2020-09-29 18:44               ` Daniel Vetter
2020-09-29 20:29               ` Linus Walleij
2020-09-29 20:29                 ` Linus Walleij
2020-09-29 21:37                 ` Peter Collingbourne
2020-09-29 21:37                   ` Peter Collingbourne
2020-09-30  9:40                 ` Daniel Vetter
2020-09-30  9:40                   ` Daniel Vetter
2020-09-29 20:51               ` Peter Collingbourne
2020-09-29 20:51                 ` Peter Collingbourne
2020-09-30  9:43                 ` Daniel Vetter
2020-09-30  9:43                   ` Daniel Vetter
2020-10-12 12:50                   ` Neil Armstrong
2020-10-12 12:50                     ` Neil Armstrong
2021-12-05 13:34       ` Linus Walleij [this message]
2021-12-05 13:34         ` Linus Walleij

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