diff options
| author |   Marc Kleine-Budde <mkl@pengutronix.de> | 2025-08-12 16:58:31 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-23 16:24:28 +0200 |
| commit | 9139c24acf034843431020bff163286ffceaa69f (patch) | |
| tree | 16a316b2df7f1dc31f5db0a26d0b29a8c482583a /tools/perf/scripts/python/bin/ssh:/git@git.zx2c4.com | |
| parent | can: m_can: m_can_chip_config(): bring up interface in correct state (diff) | |
can: m_can: fix CAN state in system PM
[ Upstream commit a9e30a22d6f23a2684c248871cad4c3061181639 ]
A suspend/resume cycle on a down interface results in the interface
coming up in Error Active state. A suspend/resume cycle on an Up
interface will always result in Error Active state, regardless of the
actual CAN state.
During suspend, only set running interfaces to CAN_STATE_SLEEPING.
During resume only touch the CAN state of running interfaces. For
wakeup sources, set the CAN state depending on the Protocol Status
Regitser (PSR), for non wakeup source interfaces m_can_start() will do
the same.
Fixes: e0d1f4816f2a ("can: m_can: add Bosch M_CAN controller support")
Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://patch.msgid.link/20250929-m_can-fix-state-handling-v4-4-682b49b49d9a@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions