[PATCH v5 3/3] PCI: dw-rockchip: Add pcie_ltssm_state_transition trace support

Anand Moon linux.amoon at gmail.com
Thu Mar 26 00:13:29 PDT 2026


Hi Shawn,

On Wed, 25 Mar 2026 at 07:29, Shawn Lin <shawn.lin at rock-chips.com> wrote:
>
> Rockchip platforms provide a 64x4 bytes debug FIFO to trace the
> LTSSM history. Any LTSSM change will be recorded. It's useful
> for debug purpose, for example link failure, etc.
>
> Signed-off-by: Shawn Lin <shawn.lin at rock-chips.com>
> ---
Tested-by: Anand Moon <linux.amoon at gmail.com>

Thanks
-Anand



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