diff options
| author | Jan Kundrát <jan.kundrat@cesnet.cz> | 2017-12-12 18:17:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-19 11:59:01 +0300 |
| commit | 78be70c8243ae6bfe8ca642dd19b2b411d4b466f (patch) | |
| tree | 3daac4dec73e9712c1cbf0db4807d161a699e148 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 80313586356c8a06cc969724dea1cc58d2a04d99 (diff) | |
| download | linux-78be70c8243ae6bfe8ca642dd19b2b411d4b466f.tar.xz | |
serial: max310x: Support IRQ sharing with other devices
According to my chip's datasheet [1], the IRQ output is an open
collector pin which is suitable for sharing with other chips. The chip
also has a register which indicates which UART performed a change and
the driver checks that register already, so we have everything what is
needed to effectively share the IRQ GPIO.
[1] https://datasheets.maximintegrated.com/en/ds/MAX14830.pdf
Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions