diff options
| author | Diana Z <dzigterman@chromium.org> | 2021-06-10 14:31:18 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-06-16 19:52:34 +0000 |
| commit | b60a603c43372e76a210535c8fb72a6726dec4f1 (patch) | |
| tree | 242875fedc197cb805b586b4e9f90c1e7c672719 /driver | |
| parent | 7a9b88e75a9e6e99643b0c45206d78f3c7f36ee9 (diff) | |
| download | chrome-ec-b60a603c43372e76a210535c8fb72a6726dec4f1.tar.gz | |
NCT38xx: Add notification for chip reset
An external reset of the chip will reset some information we've gathered
from that chip. Notify the driver so stored information may be reset as
well.
BRANCH=None
BUG=b:183660105
TEST=make -j buildall
Signed-off-by: Diana Z <dzigterman@chromium.org>
Change-Id: Ib3335cf2984f2b13bbed7cacee603ba47edd2a51
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2953875
Reviewed-by: Rob Barnes <robbarnes@google.com>
Commit-Queue: Rob Barnes <robbarnes@google.com>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/tcpm/nct38xx.c | 6 | ||||
| -rw-r--r-- | driver/tcpm/nct38xx.h | 9 |
2 files changed, 15 insertions, 0 deletions
diff --git a/driver/tcpm/nct38xx.c b/driver/tcpm/nct38xx.c index 1b620b5c40..c0e44a2e9c 100644 --- a/driver/tcpm/nct38xx.c +++ b/driver/tcpm/nct38xx.c @@ -29,6 +29,12 @@ enum nct38xx_boot_type nct38xx_get_boot_type(int port) return boot_type[port]; } +void nct38xx_reset_notify(int port) +{ + /* A full reset also resets the chip's dead battery boot status */ + boot_type[port] = NCT38XX_BOOT_UNKNOWN; +} + static int nct38xx_init(int port) { int rv; diff --git a/driver/tcpm/nct38xx.h b/driver/tcpm/nct38xx.h index 9c131e10ec..f4923b700d 100644 --- a/driver/tcpm/nct38xx.h +++ b/driver/tcpm/nct38xx.h @@ -109,6 +109,15 @@ enum nct38xx_boot_type { */ enum nct38xx_boot_type nct38xx_get_boot_type(int port); +/** + * Notify the driver that the TCPC has been reset, and any stored state from + * the chip should therefore be gathered again. This should be called when + * board_reset_pd_mcu is called after init time. + * + * @param port USB-C port number which has been reset + */ +void nct38xx_reset_notify(int port); + extern const struct ioexpander_drv nct38xx_ioexpander_drv; #endif /* defined(__CROS_EC_USB_PD_TCPM_NCT38XX_H) */ |