diff options
| author | Martin Sperl <kernel@martin.sperl.org> | 2022-07-19 12:53:05 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-07-25 13:16:43 +0100 |
| commit | 89fcdd53c2528b8f0ed34553aaf9826fe63848b5 (patch) | |
| tree | 4c3c40cffc6e770f21fa9b1ccee7709059ceb281 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | b54f2401a17b829a402904d759b288e9bdc81df8 (diff) | |
spi: bcm2835: enable shared interrupt support
BCM2711 shares an interrupt betweem 5 SPI interfaces (0, 3, 4, 5 & 6).
Another interrupt is shared between SPI1, SPI2 and UART1, which also
affects BCM2835/6/7. Acting on an interrupt intended for another
interface ought to be harmless (although potentially inefficient), but
it can cause this driver to crash - presumably because some critical
state is not ready.
Add a test to the spi-bcm2835 interrupt service routine that
interrupts are enabled on this interface to avoid the crash and
improve efficiency.
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
Link: https://github.com/raspberrypi/linux/issues/5048
Suggested-by: https://github.com/boe-pi
Co-developed-by: Phil Elwell <phil@raspberrypi.com>
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20220719105305.3076354-1-mkl@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions