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| author | Vishnu Santhosh <vishnu.santhosh@oss.qualcomm.com> | 2026-07-17 10:30:28 +0530 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2026-10-05 15:34:16 +0200 |
| commit | 3cee6f79553202d7d3954555560ac38d719344b8 (patch) | |
| tree | e1214cfd2770e6309aa39e9b3b4865d1ef0aeef4 /tools/lib/python/kdoc/python_version.py | |
| parent | 779867c3a5309561e056f9c3c55e5d1dcc7717c9 (diff) | |
dmaengine: qcom: bam_dma: Defer IRQ trigger type to device tree
The driver hardcodes IRQF_TRIGGER_HIGH when registering the BAM
interrupt, which overrides the trigger type specified in the device
tree. On Qualcomm Shikra SoC, the A2 BAM signals an edge interrupt
to the apps processor; registering it as level-high causes the
interrupt to not fire, resulting in missed DMA completions.
Use IRQF_TRIGGER_NONE instead, which causes the kernel to use the
trigger type already configured by platform_get_irq() when it parsed
the device tree interrupts property. This makes the driver
platform-agnostic.
Fixes: e7c0fe2a5c84 ("dmaengine: add Qualcomm BAM dma driver")
Co-developed-by: Deepak Kumar Singh <deepak.singh@oss.qualcomm.com>
Signed-off-by: Deepak Kumar Singh <deepak.singh@oss.qualcomm.com>
Signed-off-by: Vishnu Santhosh <vishnu.santhosh@oss.qualcomm.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260717-qcom-bam-dma-irq-trigger-v1-1-6405eac86f00@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'tools/lib/python/kdoc/python_version.py')
0 files changed, 0 insertions, 0 deletions