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authorMika Westerberg <mika.westerberg@linux.intel.com>2019-12-06 19:36:07 +0300
committerMika Westerberg <mika.westerberg@linux.intel.com>2020-09-03 12:06:42 +0300
commitb2911a593a705e54adde6d06d4657c1ff2f16583 (patch)
tree41b38ef2522fa43490f3ddaaaf7ee73cda916268 /drivers/thunderbolt/tb_regs.h
parent341d45188a7800ae3bc18558d62020787b78397e (diff)
downloadlinux-b2911a593a705e54adde6d06d4657c1ff2f16583.tar.xz
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_regs.h')
-rw-r--r--drivers/thunderbolt/tb_regs.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h
index d1a40baa63d2..0431e415e3bc 100644
--- a/drivers/thunderbolt/tb_regs.h
+++ b/drivers/thunderbolt/tb_regs.h
@@ -178,6 +178,8 @@ struct tb_regs_switch_header {
#define ROUTER_CS_4 0x04
#define ROUTER_CS_5 0x05
#define ROUTER_CS_5_SLP BIT(0)
+#define ROUTER_CS_5_WOP BIT(1)
+#define ROUTER_CS_5_WOU BIT(2)
#define ROUTER_CS_5_C3S BIT(23)
#define ROUTER_CS_5_PTO BIT(24)
#define ROUTER_CS_5_UTO BIT(25)
@@ -186,6 +188,8 @@ struct tb_regs_switch_header {
#define ROUTER_CS_6 0x06
#define ROUTER_CS_6_SLPR BIT(0)
#define ROUTER_CS_6_TNS BIT(1)
+#define ROUTER_CS_6_WOPS BIT(2)
+#define ROUTER_CS_6_WOUS BIT(3)
#define ROUTER_CS_6_HCI BIT(18)
#define ROUTER_CS_6_CR BIT(25)
#define ROUTER_CS_7 0x07
@@ -302,9 +306,13 @@ struct tb_regs_port_header {
#define PORT_CS_18 0x12
#define PORT_CS_18_BE BIT(8)
#define PORT_CS_18_TCM BIT(9)
+#define PORT_CS_18_WOU4S BIT(18)
#define PORT_CS_19 0x13
#define PORT_CS_19_PC BIT(3)
#define PORT_CS_19_PID BIT(4)
+#define PORT_CS_19_WOC BIT(16)
+#define PORT_CS_19_WOD BIT(17)
+#define PORT_CS_19_WOU4 BIT(18)
/* Display Port adapter registers */
#define ADP_DP_CS_0 0x00
@@ -418,6 +426,10 @@ struct tb_regs_hop {
#define TB_LC_PORT_ATTR_BE BIT(12)
#define TB_LC_SX_CTRL 0x96
+#define TB_LC_SX_CTRL_WOC BIT(1)
+#define TB_LC_SX_CTRL_WOD BIT(2)
+#define TB_LC_SX_CTRL_WOU4 BIT(5)
+#define TB_LC_SX_CTRL_WOP BIT(6)
#define TB_LC_SX_CTRL_L1C BIT(16)
#define TB_LC_SX_CTRL_L1D BIT(17)
#define TB_LC_SX_CTRL_L2C BIT(20)