diff options
| author | Jameson Thies <jthies@google.com> | 2024-03-15 17:18:35 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-26 15:01:15 +0100 |
| commit | 0be3870f7cbbb5db4f062505f3f7dac9009946f3 (patch) | |
| tree | 347b9e8816a9335b6b1e0253ff08dd66d46874cb /kernel/bpf/helpers.c | |
| parent | 3de4f996a0b5412aa451729008130a488f71563e (diff) | |
usb: typec: ucsi: Check capabilities before cable and identity discovery
Check the UCSI_CAP_GET_PD_MESSAGE bit before sending GET_PD_MESSAGE to
discover partner and cable identity, check UCSI_CAP_CABLE_DETAILS before
sending GET_CABLE_PROPERTY to discover the cable and check
UCSI_CAP_ALT_MODE_DETAILS before registering the a cable plug. Additionally,
move 8 bits from reserved_1 to features in the ucsi_capability struct. This
makes the field 16 bits, still 8 short of the 24 bits allocated for it in
UCSI v3.0, but it will not overflow because UCSI only defines 14 bits in
bmOptionalFeatures.
Fixes: 38ca416597b0 ("usb: typec: ucsi: Register cables based on GET_CABLE_PROPERTY")
Link: https://lore.kernel.org/linux-usb/44e8142f-d9b3-487b-83fe-39deadddb492@linaro.org
Suggested-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Jameson Thies <jthies@google.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240315171836.343830-2-jthies@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/bpf/helpers.c')
0 files changed, 0 insertions, 0 deletions