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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2016-04-04 17:35:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-01 22:15:53 +0300 |
| commit | 430b4aab73830577eb22aa434b35947f87e7ea4b (patch) | |
| tree | 7baa7c24220462c5412c199cde0aa05210cf0dcd /drivers/tty/synclinkmp.c | |
| parent | 3c5dafe43d1e36b70606d3baef8d7f24c0883343 (diff) | |
| download | linux-430b4aab73830577eb22aa434b35947f87e7ea4b.tar.xz | |
serial: 8250_mid: recognize interrupt source in handler
commit c42850f1ae7e70056f852e67bb9dddf927853b47 upstream.
There is a special register that shows interrupt status by source. In
particular case the source can be a combination of DMA Tx, DMA Rx, and UART.
Read the register and call the handlers only for sources that request an
interrupt.
Fixes: 6ede6dcd87aa ("serial: 8250_mid: add support for DMA engine handling from UART MMIO")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/synclinkmp.c')
0 files changed, 0 insertions, 0 deletions