On Mon, 3 Aug 2015, at 01:40 PM, Linus Walleij wrote:

On Mon, Aug 3, 2015 at 8:59 AM, Shannon Zhao [off-list ref]
wrote:

quoted

From: Shannon Zhao <redacted>

Since PL061 currently only supports AMBA driver, to support using GPIO
PL061 by DT or ACPI, it needs to add support for platform driver.
A DT binding is provided with this patch, ACPI support is added in a
separate one.

Signed-off-by: Shannon Zhao <redacted>
Signed-off-by: Shannon Zhao <redacted>

I already stated in 0/2 what the problem is with this, and it's obviously
adding
a huge codechunk, very similar to the AMBA probe path.

We need to investigate if ACPI can just spawn AMBA/PrimeCell type devices
instead.

AMBA DT support is a hideous hack, we had kind of hoped to avoid doing
that in ACPI.

If you notice ARM already updated pl011 driver to support platform
device type probing this seems to be the way to go.

Graeme