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ARM: dts: BCM2711 AON_INTR2 generates IRQ edges #4838

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Merged
merged 1 commit into from
Jan 22, 2022

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pelwell
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@pelwell pelwell commented Jan 21, 2022

THe AON_INTR2 controller manages the HDMI interrupts, combining them
into a single interrupt passed to the GIC. bcm2711.dtsi declares the
interrupt as being IRQ_TYPE_LEVEL_HIGH, but it should be
IRQ_TYPE_EDGE_RISING. Most of the time the distinction shouldn't
matter, but there is a small possibility of losing interrupts unless
it is corrected.

See: http://lists.infradead.org/pipermail/linux-arm-kernel/2022-January/710292.html

Signed-off-by: Phil Elwell [email protected]

THe AON_INTR2 controller manages the HDMI interrupts, combining them
into a single interrupt passed to the GIC. bcm2711.dtsi declares the
interrupt as being IRQ_TYPE_LEVEL_HIGH, but it should be
IRQ_TYPE_EDGE_RISING. Most of the time the distinction shouldn't
matter, but there is a small possibility of losing interrupts unless
it is corrected.

See: http://lists.infradead.org/pipermail/linux-arm-kernel/2022-January/710292.html

Signed-off-by: Phil Elwell <[email protected]>
@popcornmix
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CEC seems fine after this change (as is general hdmi use).

@pelwell pelwell marked this pull request as ready for review January 22, 2022 13:56
@pelwell pelwell merged commit b42c23e into raspberrypi:rpi-5.10.y Jan 22, 2022
popcornmix added a commit to raspberrypi/firmware that referenced this pull request Jan 27, 2022
See: raspberrypi/linux#4845

kernel: drm/vc4_hdmi: Add Broadcast RGB property to allow override of RGB range
See: raspberrypi/linux#4850

kernel: Update rpi-display overlay
See: raspberrypi/linux#4841

kernel: ARM: dts: BCM2711 AON_INTR2 generates IRQ edges
See: raspberrypi/linux#4838

kernel: drivers: bcm2835_unicam: Disable trigger mode operation
See: raspberrypi/linux#4834

kernel: random: fix crash on multiple early calls to add_bootloader_randomness
See: raspberrypi/linux#4829
popcornmix added a commit to raspberrypi/rpi-firmware that referenced this pull request Jan 27, 2022
See: raspberrypi/linux#4845

kernel: drm/vc4_hdmi: Add Broadcast RGB property to allow override of RGB range
See: raspberrypi/linux#4850

kernel: Update rpi-display overlay
See: raspberrypi/linux#4841

kernel: ARM: dts: BCM2711 AON_INTR2 generates IRQ edges
See: raspberrypi/linux#4838

kernel: drivers: bcm2835_unicam: Disable trigger mode operation
See: raspberrypi/linux#4834

kernel: random: fix crash on multiple early calls to add_bootloader_randomness
See: raspberrypi/linux#4829
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2 participants