[PATCH 0/2] i3c: mipi-i3c-hci: DMA interrupt fixes

Shyam Sundar S K Shyam-sundar.S-k at amd.com
Mon Sep 23 00:39:58 PDT 2024


Hi Jarkko,

On 9/20/2024 20:14, Jarkko Nikula wrote:
> Hi
> 
> These are targeted for the v6.13 cycle, i.e for the i3c/next branch
> after v6.12-rc1 is tagged.
> 
> Patch 1/2 is stable looking material but I think it gets visible only
> after patch 2/2 on a MIPI I3C HCI v1.0+ compatible HW so in my opinnion
> should go through normal development cycle.
> 
> AMD folks: You said you have non-functional DMA mode on your HW. Can the
> patch 2/2 make it functional or are there some other than interrupt
> issues?
> 

These are RTL issues within the hardware. I don't believe the patch
will help since the DMA mode never activates (at least with the
current ASIC).

Thanks,
Shyam

> Jarkko Nikula (2):
>   i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request
>   i3c: mipi-i3c-hci: Handle interrupts according to current
>     specifications
> 
>  drivers/i3c/master/mipi-i3c-hci/core.c | 16 +++-------------
>  drivers/i3c/master/mipi-i3c-hci/dma.c  | 10 +++-------
>  drivers/i3c/master/mipi-i3c-hci/hci.h  |  2 +-
>  drivers/i3c/master/mipi-i3c-hci/pio.c  |  2 +-
>  4 files changed, 8 insertions(+), 22 deletions(-)
> 



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