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| author | Marc Zyngier <marc.zyngier@arm.com> | 2015-10-14 12:27:16 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-10-15 10:18:48 +0200 |
| commit | db8c70ec1f9d45e530383204c57f2971df4bd334 (patch) | |
| tree | fbe78e3d22093b81718fa57d9b88639f2d188a86 /drivers/irqchip | |
| parent | 7e4ac676ee468108886f12a20e25795f1c330939 (diff) | |
| download | linux-stable-db8c70ec1f9d45e530383204c57f2971df4bd334.tar.gz linux-stable-db8c70ec1f9d45e530383204c57f2971df4bd334.tar.bz2 linux-stable-db8c70ec1f9d45e530383204c57f2971df4bd334.zip | |
irqchip/gic-v3: Fix translation of LPIs after conversion to irq_fwspec
Commit f833f57ff254 ("irqchip: Convert all alloc/xlate users from
of_node to fwnode") converted the GICv3 driver to using irq_fwspec
as part of its 'translate' method.
Too bad it ended up with a copy of the GICv2 'translate' method,
which screws up LPI translation (by not translating them at all).
Restore the code in its original shape, and just change what is
really required...
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Duc Dang <dhdang@apm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1444822037-16983-2-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 05d010b652f5..d7be6ddc34f6 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -746,15 +746,19 @@ static int gic_irq_domain_translate(struct irq_domain *d, if (fwspec->param_count < 3) return -EINVAL; - /* Get the interrupt number and add 16 to skip over SGIs */ - *hwirq = fwspec->param[1] + 16; - - /* - * For SPIs, we need to add 16 more to get the GIC irq - * ID number - */ - if (!fwspec->param[0]) - *hwirq += 16; + switch (fwspec->param[0]) { + case 0: /* SPI */ + *hwirq = fwspec->param[1] + 32; + break; + case 1: /* PPI */ + *hwirq = fwspec->param[1] + 16; + break; + case GIC_IRQ_TYPE_LPI: /* LPI */ + *hwirq = fwspec->param[1]; + break; + default: + return -EINVAL; + } *type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK; return 0; |