Repurpose config->pwm to mean the particular PWM device (we use PWM1 on
nyan), and add code to program the PWM device.
BUG=none
TEST=emerge-nyan chromeos-coreboot-nyan, regenerate bootimage, and boot.
See that the backlight comes up in the bootloader, and brightness can be
adjusted via pwm_bl driver in the kernel.
Original-Change-Id: I2db047e5ef23c0e8fb66dd05ad6339d60918d493
Original-Signed-off-by: Andrew Chew <achew@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/185772
Original-Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
(cherry picked from commit 0dee98dd0c8510ecd630b5c6cb9ea49724dc8b55)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ie53610f3afa30b2d8f484685fb0e8c0b12cd8241
Reviewed-on: http://review.coreboot.org/7402
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
The nyan_big mainboard is very similar to nyan, but will be different in a few
ways. For instance, the BCT will be different, and the GPIOs may need to be
configured slightly differently.
This change also adds prefixes to the kconfig variables in "choice" blocks
for both boards since having multiple instances of choice blocks with the same
options confuses kconfig even if all of the instances have mutually exclusive
dependencies.
Change-Id: I290a32e47fc118bd4b86d543df617ad324325dbc
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/183532
Reviewed-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit d1a453fe1aa68b3d12936dd48cc6c94b54f81579)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6927
Tested-by: build bot (Jenkins)
