Use 0x1000 as the default backlight PWM max value and period. This is
passed in as a module parameter to i915_drv and is used to program the
PWM registers. It can be set to other values based on the needs of each
system.
Signed-off-by: Simon Que s...@chromium.org
---
Matthew, this patch has
I feel like I'm missing something here. Where's the firmware getting its
initial value from?
--
Matthew Garrett | mj...@srcf.ucam.org
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On Tue, Nov 8, 2011 at 1:42 PM, Matthew Garrett mj...@srcf.ucam.org wrote:
I feel like I'm missing something here. Where's the firmware getting its
initial value from?
My understanding is that normally, the firmware's VBIOS can program the
value of the PWM register. But if the firmware
On Tue, Nov 08, 2011 at 02:05:14PM -0800, Simon Que wrote:
On Tue, Nov 8, 2011 at 1:42 PM, Matthew Garrett mj...@srcf.ucam.org wrote:
I feel like I'm missing something here. Where's the firmware getting its
initial value from?
My understanding is that normally, the firmware's VBIOS can
On Tue, Nov 8, 2011 at 2:10 PM, Matthew Garrett mj...@srcf.ucam.org wrote:
On Tue, Nov 08, 2011 at 02:05:14PM -0800, Simon Que wrote:
On Tue, Nov 8, 2011 at 1:42 PM, Matthew Garrett mj...@srcf.ucam.org
wrote:
I feel like I'm missing something here. Where's the firmware getting
its
On Tue, Nov 08, 2011 at 02:27:04PM -0800, Simon Que wrote:
This is for an x86-based Chromebook. Its firmware doesn't have the VBIOS
support. Previously, we had our own backlight driver that also did a
similar initialization. Now, we are trying to move away from that and use
the upstream
On Tue, Nov 8, 2011 at 2:28 PM, Matthew Garrett mj...@srcf.ucam.org wrote:
On Tue, Nov 08, 2011 at 02:27:04PM -0800, Simon Que wrote:
This is for an x86-based Chromebook. Its firmware doesn't have the VBIOS
support. Previously, we had our own backlight driver that also did a
similar
On Tue, Nov 08, 2011 at 02:41:56PM -0800, Simon Que wrote:
There is a backup kernel partition that can be used for boot.
Failing that, the system can boot from a recovery image over USB.
So absolutely no video code in the firmware at all? Ok. What I'd really
rather see here is some generic
On Tue, Nov 8, 2011 at 2:47 PM, Matthew Garrett mj...@srcf.ucam.org wrote:
On Tue, Nov 08, 2011 at 02:41:56PM -0800, Simon Que wrote:
There is a backup kernel partition that can be used for boot.
Failing that, the system can boot from a recovery image over USB.
So absolutely no video code
On Tue, Nov 08, 2011 at 03:02:00PM -0800, Olof Johansson wrote:
How about a DMI table check that overrides whatever is setup (or not
setup) from the video bios? We know exactly what platforms need this
so that table would be easy to specify.
dmi's horribly unscalable. It's much better to have
Hi,
On Tue, Nov 8, 2011 at 3:11 PM, Matthew Garrett mj...@srcf.ucam.org wrote:
On Tue, Nov 08, 2011 at 03:02:00PM -0800, Olof Johansson wrote:
How about a DMI table check that overrides whatever is setup (or not
setup) from the video bios? We know exactly what platforms need this
so that
On Tue, Nov 8, 2011 at 5:49 PM, Olof Johansson o...@lixom.net wrote:
Hi,
On Tue, Nov 8, 2011 at 3:11 PM, Matthew Garrett mj...@srcf.ucam.org wrote:
On Tue, Nov 08, 2011 at 03:02:00PM -0800, Olof Johansson wrote:
How about a DMI table check that overrides whatever is setup (or not
setup)
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