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rambi: Add delay between PP5000 and PP3300_DX enables

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This may improve stability with power chaining.

BUG=chrome-os-partner:25271
BRANCH=rambi
TEST=boot system

Change-Id: Ia3d4776b7e47c4d3cbaa4d6f937241fd230243f2
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/183739
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Randall Spangler
2014-01-24 08:12:04 -08:00
committed by chrome-internal-fetch
parent 44feb4b4e7
commit 7263e4571d
1 changed files with 1 additions and 0 deletions
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power/baytrail.c
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@@ -229,6 +229,7 @@ enum power_state power_handle_state(enum power_state state)
case POWER_S3S0:
/* Turn on power rails */
gpio_set_level(GPIO_PP5000_EN, 1);
usleep(3 * MSEC); /* Small delay; see crosbug.com/p/25271 */
gpio_set_level(GPIO_PP3300_DX_EN, 1);
/* Enable wireless */