Joe Burmeister
5d24f455c1
tty: max310x: Fix external crystal register setup
...
The datasheet states:
Bit 4: ClockEnSet the ClockEn bit high to enable an external clocking
(crystal or clock generator at XIN). Set the ClockEn bit to 0 to disable
clocking
Bit 1: CrystalEnSet the CrystalEn bit high to enable the crystal
oscillator. When using an external clock source at XIN, CrystalEn must
be set low.
The bit 4, MAX310X_CLKSRC_EXTCLK_BIT, should be set and was not.
This was required to make the MAX3107 with an external crystal on our
board able to send or receive data.
Signed-off-by: Joe Burmeister <joe.burmeister@devtank.co.uk >
Cc: stable <stable@vger.kernel.org >
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
2019-05-21 12:18:17 +02:00
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