PR 6280 breaks SPI communication and wm5102 detection on RPi5 #6285
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pelwell
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Jul 29, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Fix this in both the non-DMA and non-IRQ paths. See: raspberrypi#6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pelwell
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Jul 29, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: raspberrypi#6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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#6286 should get it working again, but I don't have one of those devices (or many other SPI devices at all). |
pelwell
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Jul 31, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: raspberrypi#6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pelwell
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Jul 31, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pelwell
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Jul 31, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
pelwell
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Jul 31, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Thanks for the early report. #6286 is now merged - please close this issue if you are satisfied. |
pelwell
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Jul 31, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Thanks a lot for the quick fix, testing looks good here so I'm happy to close the issue |
popcornmix
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Aug 5, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Aug 12, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Aug 13, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Aug 22, 2024
Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: raspberrypi/linux#6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
popcornmix
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Ensure the transmit FIFO has emptied before ending the transfer by dropping the TX threshold to 0 when the last byte has been pushed into the FIFO. Include a similar fix for the non-IRQ paths. See: #6285 Fixes: 6014649 ("spi: dw: Save bandwidth with the TMOD_TO feature") Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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Describe the bug
With current rpi-update kernel the WM5102 soundchip on the Cirrus Logic Audio Card is no longer detected, dmesg shows
arizona spi0.0: Unknown device ID: 0which is typical for a SPI comminication issue. I suspect other SPI devices might be affected, too.Bisecting lead me to the two "Save bandwidth with the TMOD_TO/RO" commits 6014649 and cd9084c, with those two reverted the chip is detected fine.
Just reverting the second TMOD_RO commit does not help and reverting only the first TMOD_TO one isn't easy because of shared context.
Checking with my scope it looks like the initial address (RPi output) phase is terminated too early, instead of the expected 48 clock cycles (1 bit r/w, 31bit address, 16 bit padding) I only see 21 cycles. In the following 16 (RPi input) clock cycles the WM5102 doesn't yet drive MISO as it's still waiting for the missing address cycles and so the RPi reads a device id of 0 (instead of 0x5102).
With the two TMOD commits reverted the SPI communication works fine:
Steps to reproduce the behaviour
Use a Cirrus Logic Audio Card on a RPi5, just enabling the
cirrus-wm5102should also the SPI issue (detecting the chip ID by reading register 0 is the first thing the arizona-spi driver does).Device (s)
Raspberry Pi 5
System
RPi OS bookworm, 64bit, kernel
Logs
https://paste.debian.net/hidden/4840050a/
Additional context
ping @pelwell
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