diff options
| author | Kevin K Wong <kevin.k.wong@intel.com> | 2016-06-20 11:47:02 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-09-13 22:21:33 -0700 |
| commit | ab967a1c776ca8d847e894cabf66507db2c716d5 (patch) | |
| tree | 41edd2ac198e0dfb1462c35edaa9f61d33042331 /include | |
| parent | 9229c795b0c4c262092c754620bf1b2bf8a9f8d7 (diff) | |
| download | chrome-ec-ab967a1c776ca8d847e894cabf66507db2c716d5.tar.gz | |
tcpc: Enable vbus discharge using PD discharge registers
BUG=chrome-os-partner:56040
BRANCH=none
TEST=Manually tested on Reef.
Used scope to monitor VBUS & it dropped to 0.8V within 650ms.
Change-Id: Icaea1dc11a7342a5cc1493d6d3c2ec3408d6d37b
Signed-off-by: Kevin K Wong <kevin.k.wong@intel.com>
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/367482
Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com>
Reviewed-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/config.h | 6 | ||||
| -rw-r--r-- | include/usb_pd_tcpm.h | 8 |
2 files changed, 14 insertions, 0 deletions
diff --git a/include/config.h b/include/config.h index 608feafbd1..0a9c96d6bc 100644 --- a/include/config.h +++ b/include/config.h @@ -1973,6 +1973,12 @@ */ #undef CONFIG_USB_PD_DISCHARGE_GPIO +/* + * Define (along with CONFIG_USB_PD_DISCHARGE) if discharge circuit is + * using PD discharge registers. + */ +#undef CONFIG_USB_PD_DISCHARGE_TCPC + /* Define if this board can act as a dual-role PD port (source and sink) */ #undef CONFIG_USB_PD_DUAL_ROLE diff --git a/include/usb_pd_tcpm.h b/include/usb_pd_tcpm.h index 1b8867d4a9..912e3bbda2 100644 --- a/include/usb_pd_tcpm.h +++ b/include/usb_pd_tcpm.h @@ -176,6 +176,14 @@ struct tcpm_drv { * @param port Type-C port number */ void (*tcpc_alert)(int port); + + /** + * Discharge PD VBUS on src/sink disconnect & power role swap + * + * @param port Type-C port number + * @param enable Discharge enable or disable + */ + void (*tcpc_discharge_vbus)(int port, int enable); }; enum tcpc_alert_polarity { |