diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2019-12-06 18:36:07 +0200 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-09-03 12:06:42 +0300 |
| commit | b2911a593a705e54adde6d06d4657c1ff2f16583 (patch) | |
| tree | 41b38ef2522fa43490f3ddaaaf7ee73cda916268 /drivers/thunderbolt/tb.h | |
| parent | 341d45188a7800ae3bc18558d62020787b78397e (diff) | |
thunderbolt: Enable wakes from system suspend
In order for the router and the whole domain to wake up from system
suspend states we need to enable wakes for the connected routers. For
device routers we enable wakes from PCIe and USB 3.x. This allows
devices such as keyboards connected to USB 3.x hub that is tunneled to
wake the system up as expected. For all routers we enabled wake on USB4
for each connected ports. This is used to propagate the wake from router
to another.
Do the same for legacy routers through link controller vendor specific
registers as documented in USB4 spec chapter 13.
While there correct kernel-doc of usb4_switch_set_sleep() -- it does not
enable wakes instead there is a separate function (usb4_switch_set_wake())
that does.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index e8593cf5901a..e095ff5ead01 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -333,6 +333,13 @@ struct tb_path { */ #define TB_PATH_MAX_HOPS (7 * 2) +/* Possible wake types */ +#define TB_WAKE_ON_CONNECT BIT(0) +#define TB_WAKE_ON_DISCONNECT BIT(1) +#define TB_WAKE_ON_USB4 BIT(2) +#define TB_WAKE_ON_USB3 BIT(3) +#define TB_WAKE_ON_PCIE BIT(4) + /** * struct tb_cm_ops - Connection manager specific operations vector * @driver_ready: Called right after control channel is started. Used by @@ -852,6 +859,7 @@ int tb_lc_configure_port(struct tb_port *port); void tb_lc_unconfigure_port(struct tb_port *port); int tb_lc_configure_xdomain(struct tb_port *port); void tb_lc_unconfigure_xdomain(struct tb_port *port); +int tb_lc_set_wake(struct tb_switch *sw, unsigned int flags); int tb_lc_set_sleep(struct tb_switch *sw); bool tb_lc_lane_bonding_possible(struct tb_switch *sw); bool tb_lc_dp_sink_query(struct tb_switch *sw, struct tb_port *in); @@ -907,6 +915,7 @@ int usb4_switch_read_uid(struct tb_switch *sw, u64 *uid); int usb4_switch_drom_read(struct tb_switch *sw, unsigned int address, void *buf, size_t size); bool usb4_switch_lane_bonding_possible(struct tb_switch *sw); +int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags); int usb4_switch_set_sleep(struct tb_switch *sw); int usb4_switch_nvm_sector_size(struct tb_switch *sw); int usb4_switch_nvm_read(struct tb_switch *sw, unsigned int address, void *buf, |