diff options
Diffstat (limited to 'baseboard/zork')
| -rw-r--r-- | baseboard/zork/variant_dalboz.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/baseboard/zork/variant_dalboz.c b/baseboard/zork/variant_dalboz.c index 1d1a403203..3d7eb3de79 100644 --- a/baseboard/zork/variant_dalboz.c +++ b/baseboard/zork/variant_dalboz.c @@ -24,12 +24,47 @@ static void usba_retimer_off(void) } DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, usba_retimer_off, HOOK_PRIO_DEFAULT); +/* + * USB C0 port SBU mux use standalone FSUSB42UMX + * chip and it need a board specific driver. + * Overall, it will use chained mux framework. + */ +static int fsusb42umx_set_mux(const struct usb_mux *me, mux_state_t mux_state) +{ + if (mux_state & USB_PD_MUX_POLARITY_INVERTED) + ioex_set_level(IOEX_USB_C0_SBU_FLIP, 1); + else + ioex_set_level(IOEX_USB_C0_SBU_FLIP, 0); + + return EC_SUCCESS; +} + +/* + * .init is not necessary here because it has nothing + * to do. Primary mux will handle mux state so .get is + * not needed as well. usb_mux.c can handle the situation + * properly. + */ +const struct usb_mux_driver usbc0_sbu_mux_driver = { + .set = fsusb42umx_set_mux, +}; + +/* + * Since FSUSB42UMX is not a i2c device, .i2c_port and + * .i2c_addr_flags are not required here. + */ +const struct usb_mux usbc0_sbu_mux = { + .usb_port = USBC_PORT_C0, + .driver = &usbc0_sbu_mux_driver, +}; + const struct usb_mux usb_muxes[] = { [USBC_PORT_C0] = { .usb_port = USBC_PORT_C0, .i2c_port = I2C_PORT_USB_AP_MUX, .i2c_addr_flags = AMD_FP5_MUX_I2C_ADDR_FLAGS, .driver = &amd_fp5_usb_mux_driver, + .next_mux = &usbc0_sbu_mux, }, [USBC_PORT_C1] = { .usb_port = USBC_PORT_C1, @@ -39,3 +74,4 @@ const struct usb_mux usb_muxes[] = { } }; BUILD_ASSERT(ARRAY_SIZE(usb_muxes) == USBC_PORT_COUNT); + |