Re: [PATCH v2] platform/x86: Add driver for Apple gmux device

[Seth Forshee]

On Wed, Feb 29, 2012 at 11:46:39AM -0600, Grant Likely wrote:
> On Wed, Feb 22, 2012 at 8:37 AM, Seth Forshee
> <seth.forshee@xxxxxxxxxxxxx> wrote:
> > Apple laptops with hybrid graphics have a device named gmux that
> > controls the muxing of the LVDS panel between the GPUs as well as screen
> > brightness. This driver adds support for the gmux device. Only backlight
> > control is supported initially.
> >
> > Signed-off-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx>
> 
> Works for me.
> 
> Tested-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
> 
> Now I just need to figure out how to get the desktop backlight widget
> to use gmux_backlight instead of acpi_video0...

The easy way is to pass acpi_backlight=vendor to the kernel, then you
won't have acpi_vidoe0.

Seth
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