[PATCH v2 0/2] Enable support for error detection in CSI2RX
From: Yemike Abhilash Chandra
Date: Mon Feb 17 2025 - 08:01:49 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 v2:
- Address Krzysztof's review comment to remove flexibility while adding
interrupts.
- Address Jai's review comment to drop support VIDIOC_LOG_STATUS on a
video node.
- Address Jai's review comment to get interrupt at probe instead of
start_stream.
- Address Jai's review comment to change dev_warn to dev_dbg when there
is no interrupt defined in DT.
V1: https://lore.kernel.org/all/20250212131244.1397722-1-y-abhilashchandra@xxxxxx/
Logs with interrupt in DT: https://gist.github.com/Yemike-Abhilash-Chandra/fb887bda738da91ea2a24690cd7b0818
Logs without interrupt in DT: https://gist.github.com/Yemike-Abhilash-Chandra/18347df18041e43b78e9738263d77aa9
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 | 10 ++
drivers/media/platform/cadence/cdns-csi2rx.c | 102 +++++++++++++++++-
2 files changed, 111 insertions(+), 1 deletion(-)
--
2.34.1