diff options
| author | Sam Mendoza-Jonas | 2016-07-11 05:38:58 +0200 |
|---|---|---|
| committer | Michael Ellerman | 2016-07-27 04:38:20 +0200 |
| commit | 00dab8187e182da41122f66c207707b192509df4 (patch) | |
| tree | a2fc023057f89199570a4247651c3fa6359bb769 | |
| parent | tty/hvc: Use IRQF_SHARED for OPAL hvc consoles (diff) | |
| download | kernel-qcow2-linux-00dab8187e182da41122f66c207707b192509df4.tar.gz kernel-qcow2-linux-00dab8187e182da41122f66c207707b192509df4.tar.xz kernel-qcow2-linux-00dab8187e182da41122f66c207707b192509df4.zip | |
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>
| -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 b7cd0ae7d927..510799311099 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); |