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| author | Matthias Schiffer <matthias.schiffer@ew.tq-group.com> | 2024-10-07 10:23:58 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2024-12-18 09:30:52 +0100 |
| commit | fca2977629f49dee437e217c3fc423b6e0cad98c (patch) | |
| tree | a065e8e4a80665badee59b30069145fc430170e0 /.get_maintainer.ignore | |
| parent | 954a2b40719a21e763a1bba2f0da92347e058fce (diff) | |
can: m_can: set init flag earlier in probe
While an m_can controller usually already has the init flag from a
hardware reset, no such reset happens on the integrated m_can_pci of the
Intel Elkhart Lake. If the CAN controller is found in an active state,
m_can_dev_setup() would fail because m_can_niso_supported() calls
m_can_cccr_update_bits(), which refuses to modify any other configuration
bits when CCCR_INIT is not set.
To avoid this issue, set CCCR_INIT before attempting to modify any other
configuration flags.
Fixes: cd5a46ce6fa6 ("can: m_can: don't enable transceiver when probing")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Markus Schneider-Pargmann <msp@baylibre.com>
Link: https://patch.msgid.link/e247f331cb72829fcbdfda74f31a59cbad1a6006.1728288535.git.matthias.schiffer@ew.tq-group.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to '.get_maintainer.ignore')
0 files changed, 0 insertions, 0 deletions