[PATCH v3 0/2] Enable support for error detection in CSI2RX
From: Yemike Abhilash Chandra
Date: Fri Feb 21 2025 - 07:07:17 EST
This patch series enables the csi2rx_err_irq interrupt to record any errors
that occur during streaming. It also adds support for the VIDIOC_LOG_STATUS
ioctl, which outputs the current device status to the kernel log.
The IRQ handler records any errors encountered during streaming.
Additionally, VIDIOC_LOG_STATUS can be invoked from user space to retrieve
the latest status.
Changelog:
Changes in v3:
- Address Krzysztof's review comment to drop minItems from the bindings.
- Collect Acked-by from Krzysztof.
- Address Jai's review comment to enable FIFO overflow bits in the mask
only for the source pads that have an active remote.
- Drop TI-specific interrupt and have support for only two interrupts
that are common across all vendors.
- Address Changhuang's review to use pdev directly to get the interrupt.
- Set the interrupt mask register only if the interrupt is defined in the DT.
V1: https://lore.kernel.org/all/20250217130013.2802293-1-y-abhilashchandra@xxxxxx/
Logs with interrupt in DT: https://gist.github.com/Yemike-Abhilash-Chandra/5bd2dfb4219686ddf389e94d563a2ab1
Logs without interrupt in DT: https://gist.github.com/Yemike-Abhilash-Chandra/31d8c840b5a4f677fde88373defed2cb
Yemike Abhilash Chandra (2):
dt-bindings: media: cdns,csi2rx.yaml: Add optional interrupts for
cdns-csi2rx
media: cadence: csi2rx: Enable csi2rx_err_irq interrupt and add
support for VIDIOC_LOG_STATUS
.../bindings/media/cdns,csi2rx.yaml | 8 ++
drivers/media/platform/cadence/cdns-csi2rx.c | 125 ++++++++++++++++++
2 files changed, 133 insertions(+)
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2.34.1