serial: 8250_lpss: enable MSI for sure
authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Mon, 10 Oct 2016 08:13:48 +0000 (11:13 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Oct 2016 14:05:20 +0000 (16:05 +0200)
commitf00a7c57569db04633818bc5e0c0e35d62733b02
tree24c4785a4a19f0c42d72a3f5f2a8c0b4c18b833c
parentbe2c92b8f1648527620058fdac2bae12b07f1fe9
serial: 8250_lpss: enable MSI for sure

The commit 4fe0d154880b ("PCI: Use positive flags in pci_alloc_irq_vectors()")
replaces flags from negative to positive values which makes mandatory to have
the last argument in pci_alloc_irq_vectors() non-zero (if we want to be no-op).
This basically drops MSI enabling in 8250_lpss driver.

Restore desired behaviour in 8250_lpss by passing PCI_IRQ_ALL_TYPES instead of
0 to pci_alloc_irq_vectors().

Fixes: 60a9244a5d14 ("serial: 8250_lpss: enable MSI for Intel Quark")
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_lpss.c