Re: [PATCH 2/2] sh: make interrupt resource optional in SH framebuffer
From: Guennadi Liakhovetski <hidden>
Date: 2010-05-01 12:15:56
Also in:
linux-sh
On Sat, 1 May 2010, Magnus Damm wrote:
On Sat, May 1, 2010 at 1:07 AM, Guennadi Liakhovetski [off-list ref] wrote:quoted
The SH LCDC driver can also function without the IRQ, in which case the FBIO_WAITFORVSYNC ioctl() cannot be supported. Enable such a mode. Signed-off-by: Guennadi Liakhovetski <redacted>Why? Doesn't the LCDC hardware block always come with an IRQ line?
Because on AP4 intcs is not supported in the mainline yet. And because we can?;) Some code paths in the driver already care for the case, when no IRQ is configured, so, we can just use it. Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/