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| author | Mary Ruthven <mruthven@chromium.org> | 2021-10-07 11:23:07 -0500 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-10-13 16:55:32 +0000 |
| commit | 39447a20c6e663d83b8581330378275530b3b2f3 (patch) | |
| tree | b9263a73374665b6a7e12957d345b257cb316c61 | |
| parent | 39e75e0a99061689620de3df9adc81bc1d810f66 (diff) | |
| download | chrome-ec-39447a20c6e663d83b8581330378275530b3b2f3.tar.gz | |
rdd: only enable AP UART if the AP is on
When the AP is off, cr50 doesn't need to enable the AP UART. Having it
enabled could cause power leakage if the signals aren't terminated
correctly. Check ap_is_on and ap_uart_is_on before enabling the AP
UART.
BUG=b:136602563
TEST=firmware_Cr50DeviceState
Change-Id: I192bdc4caef8cfa0ce6d8a3ca181b16388e35cd4
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3219756
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
| -rw-r--r-- | board/cr50/rdd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/board/cr50/rdd.c b/board/cr50/rdd.c index 147596672b..0f6fcc6674 100644 --- a/board/cr50/rdd.c +++ b/board/cr50/rdd.c @@ -230,7 +230,7 @@ static void ccd_state_change_hook(void) /* Start out by figuring what flags we might want enabled */ /* Enable AP UART RX if that device is on */ - if (ap_uart_is_on()) + if (ap_uart_is_on() && ap_is_on()) flags_want |= CCD_ENABLE_UART_AP; /* * Enable EC UART RX. |