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authorTomi Valkeinen <[email protected]>2023-11-06 11:57:48 +0200
committerNishanth Menon <[email protected]>2023-12-01 02:36:08 -0600
commitb57160859263c083c49482b0d083a586b1517f78 (patch)
tree2a014d7bb429af83bd2a70ab8842a22dae2e8ecb /tools/perf/scripts/python
parent7dc4af358cc382c5d20bd5b726e53ef0f526eb6d (diff)
arm64: dts: ti: k3-am65-main: Fix DSS irq trigger type
DSS irq trigger type is set to IRQ_TYPE_EDGE_RISING in the DT file, but the TRM says it is level triggered. For some reason triggering on rising edge results in double the amount of expected interrupts, e.g. for normal page flipping test the number of interrupts per second is 2 * fps. It is as if the IRQ triggers on both edges. There are no other side effects to this issue than slightly increased CPU & power consumption due to the extra interrupt. Switching to IRQ_TYPE_LEVEL_HIGH is correct and fixes the issue, so let's do that. Fixes: fc539b90eda2 ("arm64: dts: ti: am654: Add DSS node") Signed-off-by: Tomi Valkeinen <[email protected]> Reviewed-by: Aradhya Bhatia <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Nishanth Menon <[email protected]>
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