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| author | Rajmohan Mani <rajmohan.mani@intel.com> | 2021-04-01 18:38:05 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-06-01 10:53:31 +0300 |
| commit | 3406de7cc20f254010f2f17450a58541fb77ffea (patch) | |
| tree | 952f1f40860e3e58fdce76b69cb14fa6f59686db /drivers/thunderbolt/tb.h | |
| parent | ccc5cb8ad5d18ec0e008d1652711fa1c18e9366c (diff) | |
| download | lwn-3406de7cc20f254010f2f17450a58541fb77ffea.tar.gz lwn-3406de7cc20f254010f2f17450a58541fb77ffea.zip | |
thunderbolt: Add additional USB4 port operations for retimer access
When accessing retimers when there is no cable connected we are going to
need additional USB4 port operations. First the port needs to be put
into offline mode, and then the sideband channel transactions must be
enabled on the SBTX line. This adds support for these operations.
Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index c5704f495afa..936518adca74 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -1062,8 +1062,11 @@ int usb4_port_configure(struct tb_port *port); void usb4_port_unconfigure(struct tb_port *port); int usb4_port_configure_xdomain(struct tb_port *port); void usb4_port_unconfigure_xdomain(struct tb_port *port); +int usb4_port_router_offline(struct tb_port *port); +int usb4_port_router_online(struct tb_port *port); int usb4_port_enumerate_retimers(struct tb_port *port); +int usb4_port_retimer_set_inbound_sbtx(struct tb_port *port, u8 index); int usb4_port_retimer_read(struct tb_port *port, u8 index, u8 reg, void *buf, u8 size); int usb4_port_retimer_write(struct tb_port *port, u8 index, u8 reg, |