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| author | Alec Berg <alecaberg@chromium.org> | 2014-10-10 08:45:07 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-10-15 00:09:32 +0000 |
| commit | 8b0fe914079793de4aa9dfa49ca83619b80e81b8 (patch) | |
| tree | 0afc613a8911bf46d7f45c0fb5cd9f2e03b9e6a3 /board/ryu/usb_pd_config.h | |
| parent | c222d7b700efa20cbe7bcf4d86e9f5a6e32e8550 (diff) | |
| download | chrome-ec-8b0fe914079793de4aa9dfa49ca83619b80e81b8.tar.gz | |
pd: samus: ryu: add back in Vconn support correctly
Add support for enabling Vconn on Raiden ports by defining
CONFIG_USBC_VCONN. This is enabled by default for ryu, samus,
and fruitpie.
BUG=chrome-os-partner:30445
BRANCH=samus
TEST=Load onto samus. Make sure we can still charge from zinger.
Plug in type-A to type-C adapter with pulldown and see that samus
becomes power source. Do a gpioget and verify that only one VCONN
GPIO is enabled (low), and the VCONN that is enabled is opposite of
the polarity queried by pd 1 state. Try both ports, both polarities
and make sure the correct VCONN gpio is enabled.
Change-Id: Icea4c18b9c813cf7e8e21fd4f455bbd5fb4dbc91
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/222850
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'board/ryu/usb_pd_config.h')
| -rw-r--r-- | board/ryu/usb_pd_config.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/board/ryu/usb_pd_config.h b/board/ryu/usb_pd_config.h index cc1aa40f3c..3d7506d882 100644 --- a/board/ryu/usb_pd_config.h +++ b/board/ryu/usb_pd_config.h @@ -147,6 +147,13 @@ static inline int pd_adc_read(int port, int cc) return adc_read_channel(ADC_CC2_PD); } +static inline void pd_set_vconn(int port, int polarity, int enable) +{ + /* Set VCONN on the opposite CC line from the polarity */ + gpio_set_level(polarity ? GPIO_USBC_VCONN1_EN_L : + GPIO_USBC_VCONN2_EN_L, !enable); +} + static inline int pd_snk_is_vbus_provided(int port) { return gpio_get_level(GPIO_CHGR_ACOK); |