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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-07-09 10:27:12 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-12-12 22:59:15 +0000 |
| commit | 7dde0c032869ea92206398ad5c538d01931e3947 (patch) | |
| tree | cc85223cd5c247a1ef6cdc41aaf55d25a4293508 /drivers/hwmon/vt8231.c | |
| parent | 374b105797c3d4f29c685f3be535c35f5689b30e (diff) | |
ARM: sa11x0: assabet: better reset handling
The codec reset pin is connected to several peripherals. When the
reset is released, unfortunately the ADV7171 powers itself up rather
than remaining in power-down mode. As we don't have a driver for
this device, we end up needlessly consuming an additional 330mW.
Not only that but we should have a way to arbitrate the reset signal.
This patch provides that facility: we program the ADV7171 to sleep
mode whenever the reset is released, and we release the reset when
any one of the three peripherals requests the reset to be released.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/hwmon/vt8231.c')
0 files changed, 0 insertions, 0 deletions