Re: [PATCH 2/2] spi: qcom-geni: add GENI SE registers trace event on error paths

[Mukesh Savaliya <mukesh.savaliya@oss.qualcomm.com>]

On 7/6/2026 4:38 PM, Praveen Talari wrote:
> The GENI SPI driver reports various transfer failures such as command
> timeouts, DMA reset timeouts, DMA transaction errors, and unexpected
> interrupt conditions. However, diagnosing the root cause of these
> failures is difficult as the hardware state is not captured when the
> error occurs.
> 
> Add trace_geni_se_regs() calls at critical SPI error handling paths to
> automatically capture GENI serial engine debug registers when failures
> are detected. This includes:
> 
> - M_CMD abort/cancel timeout
> - DMA TX/RX FSM reset timeout
> - DMA transaction failures and pending residue conditions
> - Unexpected interrupt error status
> - Premature transfer completion with pending TX/RX data
> 
> Dumping the SE debug registers at the time of failure provides
> additional hardware context and significantly improves post-mortem
> analysis of SPI transfer issues without affecting normal operation.
> 
> Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
> ---
>   drivers/spi/spi-geni-qcom.c | 22 ++++++++++++++++++----
>   1 file changed, 18 insertions(+), 4 deletions(-)
> 

Acked-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>