diff options
| author | Todd Broch <tbroch@chromium.org> | 2014-11-12 16:32:02 -0800 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-05-01 01:08:10 +0000 |
| commit | 7cc3136da56eaea8cfa7f9139ebaf6361707ade2 (patch) | |
| tree | 9a66caa15bf4a2df6954c592ca6978a1bda1ad11 /board/plankton/gpio.inc | |
| parent | 56653dec06ede2c62ec35c74f0e133f18dd7ea50 (diff) | |
| download | chrome-ec-7cc3136da56eaea8cfa7f9139ebaf6361707ade2.tar.gz | |
plankton: HPD over USB PD.
HPD needs to be transported over USB PD as both SBU lines are consumed
for differential AUX signalling.
This CL does the following:
1. Enables GPIO DPSRC_HPD as interrupt.
2. Sends debounced HPD across CC via the SVDM DP status message.
3. Adds polling for GPIO_DBG_20V_TO_DUT_L as it shares the same
interrupt as DPSRC_HPD.
4. Configures DP redriver in presence of HPD high.
Signed-off-by: Todd Broch <tbroch@chromium.org>
BRANCH=none
BUG=chrome-os-partner:33132,chrome-os-partner:33761
TEST=manual,
1. Connect samus -> plankton via type-C
2. Connect plankton -> DP monitor via displayport
See initial SVDM discovery on samus console
See EDID information
See SVDM status message correct when plug/unplug DP cable from plankton
3. Press 'CHARGING_20V_TO_DUT_L' button and see below on plankton console.
Button 8 = 0
Change-Id: Id95567a3bfa073ffa2c699335be8c5bf0327675f
Reviewed-on: https://chromium-review.googlesource.com/229429
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Todd Broch <tbroch@chromium.org>
Tested-by: Todd Broch <tbroch@chromium.org>
Diffstat (limited to 'board/plankton/gpio.inc')
| -rw-r--r-- | board/plankton/gpio.inc | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/board/plankton/gpio.inc b/board/plankton/gpio.inc index dce01b2d9e..6ee250ebce 100644 --- a/board/plankton/gpio.inc +++ b/board/plankton/gpio.inc @@ -7,7 +7,7 @@ /* Inputs with interrupt handlers are first for efficiency */ GPIO_INT(VBUS_WAKE, B, 5, GPIO_INT_BOTH, vbus_event) -GPIO_INT(DBG_20V_TO_DUT_L, C, 13, GPIO_INT_FALLING, button_event) +GPIO_INT(DPSRC_HPD, B, 13, GPIO_INT_BOTH, hpd_event) GPIO_INT(DBG_12V_TO_DUT_L, B, 14, GPIO_INT_FALLING, button_event) GPIO_INT(DBG_5V_TO_DUT_L, B, 8, GPIO_INT_FALLING, button_event) GPIO_INT(DBG_CHG_TO_DEV_L, F, 1, GPIO_INT_FALLING, button_event) @@ -15,6 +15,9 @@ GPIO_INT(DBG_USB_TOGGLE_L, F, 0, GPIO_INT_FALLING, button_event) GPIO_INT(DBG_CASE_CLOSE_EN_L, B, 12, GPIO_INT_FALLING, button_event) GPIO_INT(DBG_MUX_FLIP_L, B, 15, GPIO_INT_FALLING, button_event) +/* TODO(crosbug.com/p/33761) : This interrupt is double booked w/ HPD */ +GPIO(DBG_20V_TO_DUT_L, C, 13, GPIO_INPUT) + /* PD RX/TX */ GPIO(USBC_PD_REF, A, 1, GPIO_ANALOG) GPIO(USBC_CC1_PD, A, 0, GPIO_ANALOG) @@ -50,9 +53,6 @@ GPIO(CASE_CLOSE_EN, A, 7, GPIO_OUT_LOW) GPIO(CASE_CLOSE_DFU_L, A, 13, GPIO_OUT_HIGH) GPIO(DEBUG_TOGGLE, B, 4, GPIO_OUT_LOW) -/* Display port */ -GPIO(DPSRC_HPD, B, 13, GPIO_INPUT) - /* Alternate functions */ #if 0 GPIO(UART_TX, A, 14, GPIO_OUT_LOW) |