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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-01-14 15:44:17 +0100 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-05-31 13:39:52 +0200 |
| commit | 6026b703e8f61bf9c395bb286fa3b46956ce0496 (patch) | |
| tree | 90f235d735fd87cab12630c017c761688411e569 /drivers/thunderbolt/usb4.c | |
| parent | Documentation / thunderbolt: Clean up entries (diff) | |
| download | linux-6026b703e8f61bf9c395bb286fa3b46956ce0496.tar.xz linux-6026b703e8f61bf9c395bb286fa3b46956ce0496.zip | |
thunderbolt: Add wake from DisplayPort
Latest USB4 spec added a new wake bit for DisplayPort so add this to the
driver when runtime suspending. This way wake up the domain when a new
monitor is plugged in to any of the device routers.
Also do the same for pre-USB4 devices through the link controller
registers as documented in chapter 13 of the USB4 spec.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/usb4.c')
| -rw-r--r-- | drivers/thunderbolt/usb4.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/thunderbolt/usb4.c b/drivers/thunderbolt/usb4.c index c0a14bfa36d4..7e8b5ca3114c 100644 --- a/drivers/thunderbolt/usb4.c +++ b/drivers/thunderbolt/usb4.c @@ -413,7 +413,7 @@ int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags) } /* - * Enable wakes from PCIe and USB 3.x on this router. Only + * Enable wakes from PCIe, USB 3.x and DP on this router. Only * needed for device routers. */ if (route) { @@ -421,11 +421,13 @@ int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags) if (ret) return ret; - val &= ~(ROUTER_CS_5_WOP | ROUTER_CS_5_WOU); + val &= ~(ROUTER_CS_5_WOP | ROUTER_CS_5_WOU | ROUTER_CS_5_WOD); if (flags & TB_WAKE_ON_USB3) val |= ROUTER_CS_5_WOU; if (flags & TB_WAKE_ON_PCIE) val |= ROUTER_CS_5_WOP; + if (flags & TB_WAKE_ON_DP) + val |= ROUTER_CS_5_WOD; ret = tb_sw_write(sw, &val, TB_CFG_SWITCH, ROUTER_CS_5, 1); if (ret) |