| commit | 5f873bae704cf8b7cbd64b5720912266286c9146 | |
| author | Stephen Warren <swarren@nvidia.com> | |
| Tue, 17 May 2011 22:12:37 +0000 (17 16:12 -0600) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 19 May 2011 23:51:02 +0000 (19 16:51 -0700) | ||
| tree | 0e861218bdb25d0ad3f41aa569f89d0f56d59d18 | treesnapshot (tar.gz zip) |
| parent | 4539c24fe4f92c09ee668ef959d3e8180df619b9 | commitdiff |
tty/serial: Fix break handling for PORT_TEGRA
When a break is received, Tegra's UART apparently fills the FIFO with
0 bytes. These must be drained so that they aren't interpreted as actual
data received. This allows e.g. MAGIC_SYSRQ to work on Tegra's UARTs.
v2: Added FIXME comment to clear_rx_fifo
Originally-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When a break is received, Tegra's UART apparently fills the FIFO with
0 bytes. These must be drained so that they aren't interpreted as actual
data received. This allows e.g. MAGIC_SYSRQ to work on Tegra's UARTs.
v2: Added FIXME comment to clear_rx_fifo
Originally-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/tty/serial/8250.c | diffblobblamehistory | |
| include/linux/serial_reg.h | diffblobblamehistory |