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ryu: do not pull EN_PP3300

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Modify the former workaround for board revisions missing an external
pull-up to 1.8V on EN_PP3300 :
the 100kOhm resistor between GPE13 and EN_PP3300 is still stuffed even
on boards which don't need the workaround, so tri-state the pin to avoid
driving the net.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=smaug
BUG=chrome-os-partner:46799
TEST=probed EN_3300 voltage level.

Change-Id: I48f2b2fa9a716cdbe07fbc8a006ba4d3fcfaa63d
Reviewed-on: https://chromium-review.googlesource.com/307868
Reviewed-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
(cherry picked from commit 53e49d6d6541183349bb7267fa5ec2b1db250d99)
Reviewed-on: https://chromium-review.googlesource.com/308514
Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Vincent Palatin
2015-10-22 09:03:42 -07:00
committed by chrome-bot
parent 81d269dc00
commit b3911e8eef
1 changed files with 1 additions and 1 deletions
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2
board/ryu/gpio.inc
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@@ -51,7 +51,7 @@ GPIO(PMIC_WARM_RESET_L, PIN(E, 4), GPIO_ODR_HIGH)
* This GPIO is used to pull it up through an external 100kOhm.
* EN_PP3300 is still controlled by PMIC though.
*/
GPIO(EN_PP3300_RSVD, PIN(E, 13), GPIO_OUT_LOW)
GPIO(EN_PP3300_RSVD, PIN(E, 13), GPIO_ODR_HIGH)
/* sensor temp output and PMIC reset input */
GPIO(PMIC_THERM_L, PIN(B, 8), GPIO_ODR_HIGH)
GPIO(VBUS_SENSE, PIN(A, 0), GPIO_ANALOG)