Hello list, There is a "ttyS1 irq is -1" problem observed on tiger4 which cause the serial port broken. It is because that there is __no__ ACPI IRQ resource assigned for the serial port. So the value of the IRQ for the port is never changed since it got initialized to -1. The attached patch falls back to the "no irq" hack for this case. It works for me. Please review and test. Thanks, Luming Signed-off-by: Yu Luming <[email protected]> 8250_pnp.c | 3 +++ 1 files changed, 3 insertions(+)
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8250_pnp.patch
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