diff options
| author | Sam Mendoza-Jonas <sam@mendozajonas.com> | 2016-07-11 03:38:58 (GMT) |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-27 02:38:20 (GMT) |
| commit | 00dab8187e182da41122f66c207707b192509df4 (patch) | |
| tree | a2fc023057f89199570a4247651c3fa6359bb769 /drivers | |
| parent | bbc3dfe8805de86874b1a1b1429a002e8670043e (diff) | |
| download | linux-00dab8187e182da41122f66c207707b192509df4.tar.xz | |
tty/hvc: Use opal irqchip interface if available
Update the hvc driver to use the OPAL irqchip if made available by the
running firmware. If it is not present, the driver falls back to the
existing OPAL event number.
Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/hvc/hvc_opal.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c index b7cd0ae..5107993 100644 --- a/drivers/tty/hvc/hvc_opal.c +++ b/drivers/tty/hvc/hvc_opal.c @@ -214,7 +214,13 @@ static int hvc_opal_probe(struct platform_device *dev) dev->dev.of_node->full_name, boot ? " (boot console)" : ""); - irq = opal_event_request(ilog2(OPAL_EVENT_CONSOLE_INPUT)); + irq = irq_of_parse_and_map(dev->dev.of_node, 0); + if (!irq) { + pr_info("hvc%d: No interrupts property, using OPAL event\n", + termno); + irq = opal_event_request(ilog2(OPAL_EVENT_CONSOLE_INPUT)); + } + if (!irq) { pr_err("hvc_opal: Unable to map interrupt for device %s\n", dev->dev.of_node->full_name); |