diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2022-09-26 17:33:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-26 14:25:16 +0300 |
| commit | 68158654b583bedafc50523a540160be115227d7 (patch) | |
| tree | e7655a80c058458246b288348084687cfa6c129f /drivers/thunderbolt/tb_regs.h | |
| parent | fc08f8438172a036308e0b9a52b67e6f33870100 (diff) | |
| download | linux-68158654b583bedafc50523a540160be115227d7.tar.xz | |
thunderbolt: Explicitly enable lane adapter hotplug events at startup
commit 5d2569cb4a65c373896ec0217febdf88739ed295 upstream.
Software that has run before the USB4 CM in Linux runs may have disabled
hotplug events for a given lane adapter.
Other CMs such as that one distributed with Windows 11 will enable hotplug
events. Do the same thing in the Linux CM which fixes hotplug events on
"AMD Pink Sardine".
Cc: stable@vger.kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt/tb_regs.h')
| -rw-r--r-- | drivers/thunderbolt/tb_regs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index e7d9529822fa..26868e2f9d0b 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -285,6 +285,7 @@ struct tb_regs_port_header { #define ADP_CS_5 0x05 #define ADP_CS_5_LCA_MASK GENMASK(28, 22) #define ADP_CS_5_LCA_SHIFT 22 +#define ADP_CS_5_DHP BIT(31) /* TMU adapter registers */ #define TMU_ADP_CS_3 0x03 |