linux/drivers/thunderbolt/debugfs.c, branch v6.7

thunderbolt: Fix memory leak in margining_port_remove()

2023-11-27T10:45:47Z

The dentry returned by debugfs_lookup() needs to be released by calling dput() which is missing in margining_port_remove(). Fix this by calling debugfs_lookup_and_remove() that combines both and avoids the memory leak. Fixes: d0f1e0c2a699 ("thunderbolt: Add support for receiver lane margining") Cc: stable@vger.kernel.org Signed-off-by: Yaxiong Tian Signed-off-by: Mika Westerberg

thunderbolt: Fix PCIe adapter capability length for USB4 v2 routers

2023-06-16T06:53:28Z

For USB4 v2 routers, the PCIe adapter capability length is longer. Display the correct capability length in the debugfs register dump. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg

thunderbolt: Fix DisplayPort IN adapter capability length for USB4 v2 routers

2023-06-16T06:53:28Z

For USB4 v2 routers, the DisplayPort IN adapter capability length is longer. Display the correct capability length in the debugfs register dump. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg

thunderbolt: Add two additional double words for adapters TMU for USB4 v2 routers

2023-06-16T06:53:28Z

For USB4 v2 routers, the adapters's TMU capability has two additional double words. Include them in the debugfs register dump. Signed-off-by: Gil Fine Signed-off-by: Mika Westerberg

thunderbolt: Make tb_switch_clx_disable() return CL states that were enabled

2023-06-09T09:07:24Z

This allows us to disable all CL states temporarily when running lane margining and then return back the previously enabled states. Signed-off-by: Mika Westerberg

thunderbolt: Move CLx support functions into clx.c

2023-06-09T09:07:23Z

There really don't belong to switch.c so move them into their own file. As we do this rename the functions to match the conventions used elsewhere in the driver. No functional changes. Signed-off-by: Mika Westerberg

thunderbolt: Fix memory leak in margining

2023-03-13T09:54:14Z

Memory for the usb4->margining needs to be relased for the upstream port of the router as well, even though the debugfs directory gets released with the router device removal. Fix this. Fixes: d0f1e0c2a699 ("thunderbolt: Add support for receiver lane margining") Cc: stable@vger.kernel.org Signed-off-by: Mika Westerberg

thunderbolt: Include the additional DP IN double word in debugfs dump

2023-01-17T09:37:11Z

When DisplayPort bandwidth allocation mode is supported by the DP IN adapter it has an extra double word in the adapter config space. Include this in the debugfs register dump. Signed-off-by: Mika Westerberg

thunderbolt: debugfs: Fix spelling mistakes in seq_puts text

2022-09-07T06:09:24Z

There are a handful of spelling mistakes in seq_puts text. Fix them. Signed-off-by: Colin Ian King Signed-off-by: Mika Westerberg

thunderbolt: Add support for receiver lane margining

2022-09-05T06:02:16Z

USB4 spec defines standard set of registers to be used for receiver lane margining. This is useful for I/O interface quality and electrical robustness validation during manufacturing. Expose receiver lane margining through new debugfs directory "margining" that is added under each connected USB4 port. Users can then run the margining by writing to the exposed attributes under that directory. Signed-off-by: Mika Westerberg