diff options
| author | Xin Ji <xji@analogixsemi.com> | 2018-06-26 11:31:08 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-07-25 19:45:37 -0700 |
| commit | 5110f15fa238acd2e67844531904108245517cbb (patch) | |
| tree | f6d363255436a3d98874b551a6f4a54ab06db636 /driver | |
| parent | 1241107ff7de1e18f80cd83d93a6cb1dc09134a3 (diff) | |
| download | chrome-ec-5110f15fa238acd2e67844531904108245517cbb.tar.gz | |
anx7447: configure VCONN OCP(Over Current Protection) threshold.
BUG=b:111813040
BRANCH=none
TEST=verified on N25, Apple HDMI dongle attached monitor can display picture.
Change-Id: Ib6503083c6ae1003f5451cf90482929c1c757113
Signed-off-by: Xin Ji <xji@analogixsemi.com>
Reviewed-on: https://chromium-review.googlesource.com/1114396
Commit-Ready: Jett Rink <jettrink@chromium.org>
Tested-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/tcpm/anx7447.c | 8 | ||||
| -rw-r--r-- | driver/tcpm/anx7447.h | 7 |
2 files changed, 15 insertions, 0 deletions
diff --git a/driver/tcpm/anx7447.c b/driver/tcpm/anx7447.c index c04c316cf0..f3ed1589b0 100644 --- a/driver/tcpm/anx7447.c +++ b/driver/tcpm/anx7447.c @@ -333,6 +333,14 @@ static int anx7447_init(int port) if (rv) return rv; + /* Set VCONN OCP(Over Current Protection) threshold */ + rv = tcpc_read(port, ANX7447_REG_ANALOG_CTRL_8, ®); + if (rv) + return rv; + reg &= ~ANX7447_REG_VCONN_OCP_MASK; + reg |= ANX7447_REG_VCONN_OCP_370mA; + rv = tcpc_write(port, ANX7447_REG_ANALOG_CTRL_8, reg); + /* init hpd status */ anx7447_hpd_mode_en(port); anx7447_set_hpd_level(port, 0); diff --git a/driver/tcpm/anx7447.h b/driver/tcpm/anx7447.h index 89b452317f..75f9fd449c 100644 --- a/driver/tcpm/anx7447.h +++ b/driver/tcpm/anx7447.h @@ -31,6 +31,13 @@ #define ANX7447_REG_INTP_CTRL_0 0x9E +#define ANX7447_REG_ANALOG_CTRL_8 0xA8 +#define ANX7447_REG_VCONN_OCP_MASK 0x0C +#define ANX7447_REG_VCONN_OCP_240mA 0x00 +#define ANX7447_REG_VCONN_OCP_310mA 0x04 +#define ANX7447_REG_VCONN_OCP_370mA 0x08 +#define ANX7447_REG_VCONN_OCP_440mA 0x0C + /* * This section of defines are only required to support the config option * CONFIG_USB_PD_TCPM_ANX7447_OCM_ERASE_COMMAND. |