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| author | Joakim Zhang <qiangqing.zhang@nxp.com> | 2019-12-04 11:36:19 +0000 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-09-22 16:52:50 +0200 |
| commit | 1434d04349626d7b4da49b99f79d6391b9a67f16 (patch) | |
| tree | c7527b1545393c7d5421733fb01cd36172fce837 /scripts/gen_compile_commands.py | |
| parent | 02f71c6605e1f8259c07f16178330db766189a74 (diff) | |
can: flexcan: add LPSR mode support
On the i.MX7D in LPSR mode, the controller will be powered off and the
configuration state is lost after system resume. Upcoming i.MX8QM/QXP
will also completely power off the domain, the controller state is lost
and needs restore, too. So we need to set the pinctrl state again and
re-start chip to re-configuration after resume.
For the wakeup case, it should not set pinctrl to sleep state by
pinctrl_pm_select_sleep_state.
If the interface is down before suspend, we don't need to re-configure
it as it will be configured if the interface is brought up later.
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Link: https://lore.kernel.org/r/20191204113249.3381-7-qiangqing.zhang@nxp.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'scripts/gen_compile_commands.py')
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