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| author | Duncan Laurie <dlaurie@chromium.org> | 2013-05-06 14:02:27 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-11-25 23:14:17 +0100 |
| commit | 92e1f15175b3ab6fc50e3614c735d5e9cb3f3a22 (patch) | |
| tree | 6ca3345d454317c1b167c9d79bbb4e36d6c2f54d /src/arch | |
| parent | f8b36501fd3f70569b15cc8dcaa9bcd8f76870af (diff) | |
| download | coreboot-92e1f15175b3ab6fc50e3614c735d5e9cb3f3a22.tar.xz | |
lynxpoint: Expose ACPI Device for LP GPIO controller
In order to probe the gpio-lynxpoint kernel driver the
LP GPIO controller needs to be exposed as a specific
ACPI device.
This also allows the resources to be exposed to the OS via
this device instead of the catch-all LPC device.
Ensure the driver loads at boot:
gpiochip_find_base: found new base at 162
gpiochip_add: registered GPIOs 162 to 255 on device: INT33C7:00
Also ensure the driver is visible in sysfs:
$ cat /sys/devices/platform/INT33C7:00/gpio/gpiochip162/label
INT33C7:00
Change-Id: I9f79c008f88da9b67ed1cdfdb9d3a581ce8f05ff
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/50215
Reviewed-on: http://review.coreboot.org/4158
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/arch')
0 files changed, 0 insertions, 0 deletions