diff options
| author | Caveh Jalali <caveh@google.com> | 2017-08-15 15:23:21 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-08-16 20:46:36 -0700 |
| commit | ee3fb6c6aa1b1ba3a7d92e1fdd8a32a5924246d6 (patch) | |
| tree | 40686bba3abaae99d1581ffd8c406bf37862259f /driver/tcpm/ps8xxx.h | |
| parent | 63158e2ee67a906d0868fad4c65d04207b4e0427 (diff) | |
| download | chrome-ec-ee3fb6c6aa1b1ba3a7d92e1fdd8a32a5924246d6.tar.gz | |
ps8xxx: use custom tcpm_drv
the ps8xxx family of TCPCs (ps8751, ps8805) have historically used the
generic tcpci_tcpm_drv functions, but we need to override some of
these entry points because the parade parts need to be woken up before
accessing registers.
in most cases, this doesn't matter because we access the chip in quick
succession where we can "safely" assume the chip is awake -- and the
code is structured to implicitly keep the chip awake. the new case we
need to address here is where we need to suspend the pd_task and TCPC
at an arbitrary point in time. the driver's .release method is called
to shut down the chip, and that involves first waking up the chip to
be able to access its regs to mask off interrupts, etc.
BUG=b:35586896
BRANCH=none
TEST=tested from depthcharge - we no longer get errors in the EC
console logs about TCPC "release" failed.
Change-Id: Ic2a90b71050b3f68c697b1cef48d736ed88b3f41
Signed-off-by: Caveh Jalali <caveh@google.com>
Reviewed-on: https://chromium-review.googlesource.com/616460
Reviewed-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'driver/tcpm/ps8xxx.h')
| -rw-r--r-- | driver/tcpm/ps8xxx.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/driver/tcpm/ps8xxx.h b/driver/tcpm/ps8xxx.h index f0ca91b4d3..1035af8077 100644 --- a/driver/tcpm/ps8xxx.h +++ b/driver/tcpm/ps8xxx.h @@ -35,9 +35,12 @@ #endif +extern const struct tcpm_drv ps8xxx_tcpm_drv; void ps8xxx_tcpc_update_hpd_status(int port, int hpd_lvl, int hpd_irq); int ps8xxx_tcpc_get_fw_version(int port, int *version); + #ifdef CONFIG_CMD_I2C_STRESS_TEST_TCPC extern struct i2c_stress_test_dev ps8xxx_i2c_stress_test_dev; #endif /* defined(CONFIG_CMD_I2C_STRESS_TEST_TCPC) */ + #endif /* defined(__CROS_EC_USB_PD_TCPM_PS8XXX_H) */ |