diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2021-12-05 14:13:49 +0300 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2021-12-06 20:17:44 +0300 |
| commit | c768968f134b9e7ab8a584ad19030a8d2c7eca2f (patch) | |
| tree | ff3c4b0c6e3184c9067964cc0ecdde9ae2e979fa /drivers/remoteproc | |
| parent | b20dc021ba5a813fec6dd66bb78a658e58cfce8d (diff) | |
| download | linux-c768968f134b9e7ab8a584ad19030a8d2c7eca2f.tar.xz | |
remoteproc: ingenic: Request IRQ disabled
The ingenic remoteproc driver requests its IRQ and then immediately
disables it.
The disable is necessary since irq_request() normally enables the IRQ. But
there is a new flag IRQF_NO_AUTOEN that when specified keeps the IRQ
disabled. Use this new flag rather than calling disable_irq().
This slightly reduce the boilerplate code and also avoids a theoretical
race condition where the IRQ could fire between irq_request() and
disable_irq().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20211205111349.51213-1-lars@metafoo.de
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/ingenic_rproc.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/remoteproc/ingenic_rproc.c b/drivers/remoteproc/ingenic_rproc.c index a356738160a4..9902cce28692 100644 --- a/drivers/remoteproc/ingenic_rproc.c +++ b/drivers/remoteproc/ingenic_rproc.c @@ -218,14 +218,13 @@ static int ingenic_rproc_probe(struct platform_device *pdev) if (vpu->irq < 0) return vpu->irq; - ret = devm_request_irq(dev, vpu->irq, vpu_interrupt, 0, "VPU", rproc); + ret = devm_request_irq(dev, vpu->irq, vpu_interrupt, IRQF_NO_AUTOEN, + "VPU", rproc); if (ret < 0) { dev_err(dev, "Failed to request IRQ\n"); return ret; } - disable_irq(vpu->irq); - ret = devm_rproc_add(dev, rproc); if (ret) { dev_err(dev, "Failed to register remote processor\n"); |