diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2017-06-05 12:43:51 +0300 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-06-06 02:53:10 +0300 |
| commit | e5c86679d5e864947a52fb31e45a425dea3e7fa9 (patch) | |
| tree | c0eb37a4f2386c131ddb2725f4ac4ae781402473 /drivers/mailbox | |
| parent | 6bf28969f617f0131e94deb5476f4c45f43fd847 (diff) | |
| download | linux-e5c86679d5e864947a52fb31e45a425dea3e7fa9.tar.xz | |
xtensa: don't use linux IRQ #0
Linux IRQ #0 is reserved for error reporting and may not be used.
Increase NR_IRQS for one additional slot and increase
irq_domain_add_legacy parameter first_irq value to 1, so that linux
IRQ #0 is not associated with hardware IRQ #0 in legacy IRQ domains.
Introduce macro XTENSA_PIC_LINUX_IRQ for static translation of xtensa
PIC hardware IRQ # to linux IRQ #. Use this macro in XTFPGA platform
data definitions.
This fixes inability to use hardware IRQ #0 in configurations that don't
use device tree and allows for non-identity mapping between linux IRQ #
and hardware IRQ #.
Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'drivers/mailbox')
0 files changed, 0 insertions, 0 deletions