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Commit 5568181f authored by Stephen Warren's avatar Stephen Warren Committed by Greg Kroah-Hartman
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tty/serial: Fix XSCALE serial ports, e.g. ce4100 



Commit 4539c24f "tty/serial: Add
explicit PORT_TEGRA type" introduced separate flags describing the need
for IER bits UUE and RTOIE. Both bits are required for the XSCALE port
type. While that patch updated uart_config[] as required, the auto-probing
code wasn't updated to set the RTOIE flag when an XSCALE port type was
detected. This caused such ports to stop working. This patch rectifies
that.

Reported-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
Cc: stable <stable@kernel.org> [3.0]
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7c365bac

drivers/tty/serial/8250.c

+1 −1
Original line number Diff line number Diff line
@@ -1107,7 +1107,7 @@ static void autoconfig_16550a(struct uart_8250_port *up) 
			 */

			DEBUG_AUTOCONF("Xscale ");

			up->port.type = PORT_XSCALE;

			up->capabilities |= UART_CAP_UUE;

			up->capabilities |= UART_CAP_UUE | UART_CAP_RTOIE;

			return;

		}

	} else {