diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2017-05-24 21:38:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-25 14:35:53 +0200 |
| commit | 6df765dca378bddf994cfd2044acafa501bd800f (patch) | |
| tree | 4cd135416b95cf7a0239629624c440c35997c222 /drivers/vfio | |
| parent | 46e3813d72abb018f0cd6e72389004db8728c738 (diff) | |
serial: imx: ensure UCR3 and UFCR are setup correctly
Commit e61c38d85b73 ("serial: imx: setup DCEDTE early and ensure DCD and
RI irqs to be off") has a flaw: While UCR3 and UFCR were modified using
read-modify-write before it switched to write register values
independent of the previous state. That's a good idea in principle (and
that's why I did it) but needs more care.
This patch reinstates read-modify-write for UFCR and for UCR3 ensures
that RXDMUXSEL and ADNIMP are set for post imx1.
Fixes: e61c38d85b73 ("serial: imx: setup DCEDTE early and ensure DCD and RI irqs to be off")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Mika Penttilä <mika.penttila@nextfour.com>
Tested-by: Mika Penttilä <mika.penttila@nextfour.com>
Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
Tested-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vfio')
0 files changed, 0 insertions, 0 deletions