From: inki.dae@samsung.com (In-Ki Dae)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] FB: Add some members for CPU Interface.
Date: Fri, 02 Jul 2010 07:50:53 +0000 (GMT) [thread overview]
Message-ID: <25797910.38561278057053699.JavaMail.weblogic@epml17> (raw)
Ok, I understood.
I think this issue incompatible with existing users is because userspace API didn't consider cpu mode before.
anyway, I will correct my patch as your comments and send it again.
Perhaps, cpu timing variables would be moved to platform file.
thank you.
------- Original Message -------
Sender : Russell King - ARM Linux<linux@arm.linux.org.uk>
Date : 2010-07-02 16:30 (GMT+09:00)
Title : Re: [PATCH 1/3] FB: Add some members for CPU Interface.
On Wed, Jun 30, 2010 at 08:02:31AM +0800, Jaya Kumar wrote:
> > diff --git a/include/linux/fb.h b/include/linux/fb.h
> > index 907ace3..73381c3 100644
> > --- a/include/linux/fb.h
> > +++ b/include/linux/fb.h
> > @@ -269,6 +269,12 @@ struct fb_var_screeninfo {
> > __u32 vmode; /* see FB_VMODE_* */
> > __u32 rotate; /* angle we rotate counter clockwise */
> > __u32 reserved[5]; /* Reserved for future compatibility */
> > +
> > + /* For cpu interface timing. */
> > + __u32 cs_setup;
> > + __u32 wr_setup;
> > + __u32 wr_act;
> > + __u32 wr_hold;
This changes the framebuffer userspace API, making it incompatible with
existing users. What this means is that stuff using the framebuffer API
in userspace has to be upgraded/downgraded in lock-step with this change
- which is not a good idea.
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next reply other threads:[~2010-07-02 7:50 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-02 7:50 In-Ki Dae [this message]
2010-07-06 16:09 ` [PATCH 1/3] FB: Add some members for CPU Interface James Simmons
-- strict thread matches above, loose matches on Subject: below --
2010-07-02 2:35 In-Ki Dae
2010-07-02 1:51 In-Ki Dae
2010-07-02 1:21 In-Ki Dae
2010-07-02 1:46 ` Andrew Morton
2010-06-29 10:49 InKi Dae
2010-06-30 0:02 ` Jaya Kumar
2010-06-30 4:36 ` InKi Dae
2010-07-01 23:47 ` Jaya Kumar
2010-07-02 7:30 ` Russell King - ARM Linux
2010-07-05 8:42 ` Pawel Osciak
2010-06-29 8:31 [PATCH 0/3] ARM: S5PV210: Add MIPI-DSI support InKi Dae
[not found] ` <4C29B1C1.2000209@samsung.com>
[not found] ` <4C29CABE.9020208@samsung.com>
2010-07-01 22:26 ` [PATCH 1/3] FB: Add some members for CPU Interface Andrew Morton
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