From: Sven Peter sven@svenpeter.dev
commit 676748389f5db74e7d28f9d630eebd75cb8a11b4 upstream.
In order to bring up the USB3 PHY on the Apple M1 we need to know the orientation of the Type-C cable. Extract it from the status register and forward it to the typec subsystem.
Reviewed-by: Heikki Krogerus heikki.krogerus@linux.intel.com Cc: stable stable@vger.kernel.org Signed-off-by: Sven Peter sven@svenpeter.dev Link: https://lore.kernel.org/r/20220226125912.59828-1-sven@svenpeter.dev Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/typec/tipd/core.c | 5 +++++ drivers/usb/typec/tipd/tps6598x.h | 1 + 2 files changed, 6 insertions(+)
--- a/drivers/usb/typec/tipd/core.c +++ b/drivers/usb/typec/tipd/core.c @@ -256,6 +256,10 @@ static int tps6598x_connect(struct tps65 typec_set_pwr_opmode(tps->port, mode); typec_set_pwr_role(tps->port, TPS_STATUS_TO_TYPEC_PORTROLE(status)); typec_set_vconn_role(tps->port, TPS_STATUS_TO_TYPEC_VCONN(status)); + if (TPS_STATUS_TO_UPSIDE_DOWN(status)) + typec_set_orientation(tps->port, TYPEC_ORIENTATION_REVERSE); + else + typec_set_orientation(tps->port, TYPEC_ORIENTATION_NORMAL); tps6598x_set_data_role(tps, TPS_STATUS_TO_TYPEC_DATAROLE(status), true);
tps->partner = typec_register_partner(tps->port, &desc); @@ -278,6 +282,7 @@ static void tps6598x_disconnect(struct t typec_set_pwr_opmode(tps->port, TYPEC_PWR_MODE_USB); typec_set_pwr_role(tps->port, TPS_STATUS_TO_TYPEC_PORTROLE(status)); typec_set_vconn_role(tps->port, TPS_STATUS_TO_TYPEC_VCONN(status)); + typec_set_orientation(tps->port, TYPEC_ORIENTATION_NONE); tps6598x_set_data_role(tps, TPS_STATUS_TO_TYPEC_DATAROLE(status), false);
power_supply_changed(tps->psy); --- a/drivers/usb/typec/tipd/tps6598x.h +++ b/drivers/usb/typec/tipd/tps6598x.h @@ -17,6 +17,7 @@ /* TPS_REG_STATUS bits */ #define TPS_STATUS_PLUG_PRESENT BIT(0) #define TPS_STATUS_PLUG_UPSIDE_DOWN BIT(4) +#define TPS_STATUS_TO_UPSIDE_DOWN(s) (!!((s) & TPS_STATUS_PLUG_UPSIDE_DOWN)) #define TPS_STATUS_PORTROLE BIT(5) #define TPS_STATUS_TO_TYPEC_PORTROLE(s) (!!((s) & TPS_STATUS_PORTROLE)) #define TPS_STATUS_DATAROLE BIT(6)