diff options
| author | Fabio Estevam <[email protected]> | 2017-01-30 09:12:12 -0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2017-01-31 10:54:58 +0100 |
| commit | bc2be239feef9ac9fc8ad17adf7c03b353f6546f (patch) | |
| tree | 1c4e2caac30b566fa6498500909cb2ea148717ba /scripts/gdb/linux/tasks.py | |
| parent | 1a613626d2895f4f6b95a3b0a6413e52e00b5f95 (diff) | |
serial: imx: Fix the CTS_B polarity in RS485 mode
When userspace passes the SER_RS485_RTS_ON_SEND flag it means that the
CTS_B pin should go to logic level high before the transmission begins.
CTS_B goes to logic level high when both CTSC and CTS bits are cleared.
When userspace passes the SER_RS485_RTS_AFTER_SEND flag it means that the
CTS_B pin should go to logic level low after the transmission finishes.
CTS_B goes to logic level low when CTSC bit is cleared and CTS bit is set.
So fix the CTS_B polarity logic.
Signed-off-by: Fabio Estevam <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'scripts/gdb/linux/tasks.py')
0 files changed, 0 insertions, 0 deletions