kernel/git/next/linux-next.git/drivers/thunderbolt, branch akpm

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git

2022-06-28T04:18:25+00:00

thunderbolt: ACPI: Replace tb_acpi_find_port() with acpi_find_child_by_adr()

2022-06-20T18:32:26+00:00

Use acpi_find_child_by_adr() to find the child matching a given bus address instead of tb_acpi_find_port() that walks the list of children of an ACPI device directly for this purpose and drop the latter. Apart from simplifying the code, this will help to eliminate the children list head from struct acpi_device as it is redundant and it is used in questionable ways in some places (in particular, locking is needed for walking the list pointed to it safely, but it is often missing). Signed-off-by: Rafael J. Wysocki Reviewed-by: Andy Shevchenko Acked-by: Mika Westerberg Reviewed-by: Heikki Krogerus

thunderbolt: Fix typo in comment

2022-06-17T15:19:15+00:00

Delete the redundant word 'the'. Signed-off-by: Xiang Wangx Signed-off-by: Mika Westerberg

thunderbolt: Add support for Intel Raptor Lake

2022-06-06T09:33:22+00:00

Intel Raptor Lake has the same integrated Thunderbolt/USB4 controller as Intel Alder Lake. By default it is still using firmware based connection manager so we can use most of the Alder Lake flows. Signed-off-by: George D Sworo Signed-off-by: Mika Westerberg

thunderbolt: Fix some kernel-doc comments

2022-06-06T09:28:56+00:00

Remove some warnings found by running scripts/kernel-doc, which is caused by using 'make W=1'. drivers/thunderbolt/ctl.c:701: warning: expecting prototype for tb_cfg_start(). Prototype was for tb_ctl_start() instead drivers/thunderbolt/ctl.c:722: warning: expecting prototype for tb_ctrl_stop(). Prototype was for tb_ctl_stop() instead drivers/thunderbolt/ctl.c:930: warning: expecting prototype for tb_cfg_write(). Prototype was for tb_cfg_write_raw() instead Reported-by: Abaci Robot Signed-off-by: Yang Li Signed-off-by: Mika Westerberg

thunderbolt: Change TMU mode to HiFi uni-directional once DisplayPort tunneled

2022-06-06T09:24:56+00:00

Here we configure TMU mode to HiFi uni-directional once DP tunnel is created. This is due to accuracy requirement for DP tunneling as appears in CM guide 1.0, section 7.3.2. Due to Intel hardware limitation, once we changed the TMU mode to HiFi uni-directional (when DP tunnel exists), we don't change TMU mode back to normal uni-directional, even if DP tunnel is torn down later. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg

thunderbolt: Add CL1 support for USB4 and Titan Ridge routers

2022-06-06T09:24:56+00:00

In this patch we add support for a second low power state of the link: CL1. Low power states (called collectively CLx) are used to reduce transmitter and receiver power when a high-speed lane is idle. We enable it, if both sides of the link support it, and only for the first hop router (i.e. the first device that connected to the host router). This is needed for better thermal management. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg

thunderbolt: Change downstream router's TMU rate in both TMU uni/bidir mode

2022-06-06T09:19:23+00:00

In case of uni-directional time sync, TMU handshake is initiated by upstream router. In case of bi-directional time sync, TMU handshake is initiated by downstream router. In order to handle correctly the case of uni-directional mode, we avoid changing the upstream router's rate to off, because it might have another downstream router plugged that is set to uni-directional mode (and we don't want to change its mode). Instead, we always change downstream router's rate. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg

thunderbolt: Fix typos in CLx enabling

2022-06-06T09:19:23+00:00

Fix few typos in CLx enabling. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg

thunderbolt: CLx disable before system suspend only if previously enabled

2022-06-06T09:19:23+00:00

Disable CLx before system suspended only if previously was enabled. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg