On 5/6/2020 3:40 PM, Dilip Kota wrote:
On 5/5/2020 7:23 PM, Mark Brown wrote:
On Mon, May 04, 2020 at 06:15:47PM +0800, Dilip Kota wrote:
On 4/29/2020 8:13 PM, Mark Brown wrote:
I just tried to get the history of removing workqueue in SPI driver, on
GRX500 (earlier chipset of LGM) the SPI transfers got timedout with
workqueues during regression testing. Once changed to threaded IRQs
transfers are working successfully.
That doesn't really explain why though, it just explains what.
I didnt find more information about it. I will work to reproduce the
issue and share the detailed information sooner i get the
accessibility of the SoC (because of covid19 doing wfh)
I got the GRX500 setup and reproduced the timeout issue.
[ 88.721883] spi-loopback-test spi1.2: SPI transfer timed out
[ 88.726488] spi-loopback-test spi1.2: spi-message timed out -
reruning...
[ 88.961786] spi-loopback-test spi1.2: SPI transfer timed out
[ 88.966027] spi-loopback-test spi1.2: Failed to execute spi_message:
-145
Timeout is happening because of not acknowledging or not clearing the
interrupt status registers. Workqueue is not causing any issue,
I am working on the changes, will submit the patches for review.
Regards,
Dilip
Regards,
Dilip
