Staging/2026 r1 fixes#3200
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dbogdan merged 4 commits intoxlnx/release/linux-v6.12.y-2026r1from Mar 24, 2026
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Under certain circumstances, the calibration procedure IRQ may not happen on the expected time, which is interpreted as an I/O error, which in turn would cause ad7173 driver probe to fail. Though, ADC channel calibration can be issued latter through IIO sysfs interfaces. Thus, failing device probe seems too drastic of a decision in response to a calibration fail. Instead of aborting device probe, only warn on calibration fail. Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Set QPLL0 instead of CPLL for the Rx ADXCVR. Signed-off-by: George Mois <george.mois@analog.com>
Change DMA controller clock references from PL2_REF to PL0_REF to match the actual FPGA design clock routing. The rx_dma, rx_obs_dma, and tx_dma controllers were incorrectly referencing zynqmp_clk 73 (PL2_REF) instead of zynqmp_clk 71 (PL0_REF). Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
The fact that this ever worked, is a fluke. See: https://github.com/analogdevicesinc/hdl/blob/442ab0b2108743693b106422149d5c4988de2f4f/projects/cn0540/de10nano/system_top.v#L171 The SYNC GPIO seems to be part of the output GPIOs, not the input GPIOs After applying this change, changing the sample-rates will no longer lock-up the device. No delay seems to be required in the GPIO pulse toggling. To reproduce this and be a bit more sure, here's a script which reproduces the issue more reliably: ``` for iter in $(seq 1 100); do echo "Iteration $iter" iio_readdev ad7768-1 -s 4096 &> /dev/null sleep 0.1 echo "Iteration $iter 128 kSamples" iio_readdev ad7768-1 -s 4096 &> /dev/null sleep 0.1 echo 128000 > "/sys/bus/iio/devices/iio:device0/sampling_frequency" iio_readdev ad7768-1 -s 4096 &> /dev/null sleep 0.1 echo "Iteration $iter 256 kSamples" echo 256000 > "/sys/bus/iio/devices/iio:device0/sampling_frequency" sleep 0.1 done ``` Fixes: 3c2a53d ("arch: arm: boot: dts: Add support for CN0540 with DE10-nano") Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>
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Mar 24, 2026
dbogdan
merged commit 4691225
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xlnx/release/linux-v6.12.y-2026r1
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