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samus_pd: Initial DFP_D HPD GPIOs.

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USB PD spec now calls for HPD signal to be managed across the USB PD
protocal.  In preparation this CL makes the HPD GPIOs outputs and
initially low.

This should NOT effect older revs of the design as GPIOs were unused
(had unstuffed option for external XTAL).

BRANCH=samus
BUG=chrome-os-partner:30645
TEST=compiles & runs.  With reworked board can manually trigger HPD.

Change-Id: I0a64c1daf8d8c866f5de237c3daf4be028eecd63
Signed-off-by: Todd Broch <tbroch@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/223462
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Todd Broch
2014-10-15 10:07:22 -07:00
committed by chrome-internal-fetch
parent 82915c2502
commit 847eb1ec44
1 changed files with 2 additions and 0 deletions
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2
board/samus_pd/gpio.inc
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@@ -72,6 +72,8 @@ GPIO(USB_C0_DP_MODE_L, E, 8, GPIO_OUT_HIGH, NULL)
GPIO(USB_C1_DP_MODE_L, F, 6, GPIO_OUT_HIGH, NULL)
GPIO(USB_C0_DP_POLARITY, E, 7, GPIO_OUT_HIGH, NULL)
GPIO(USB_C1_DP_POLARITY, F, 3, GPIO_OUT_HIGH, NULL)
GPIO(USB_C0_DP_HPD, F, 0, GPIO_OUT_LOW, NULL)
GPIO(USB_C1_DP_HPD, F, 1, GPIO_OUT_LOW, NULL)
#if 0
/* Alternate functions */