Re: [PATCH v2 2/2] PCI: sg2042: Avoid L0s and L1 on Sophgo 2042 PCIe Root Ports

[Yao Zi <me@ziyao.cc>]

On Fri, Feb 27, 2026 at 06:19:25PM +0000, Yao Zi wrote:
> Since commit f3ac2ff14834 ("PCI/ASPM: Enable all ClockPM and ASPM
> states for devicetree platforms") force enable ASPM on all device tree
> platform, the SG2042 root port breaks as it advertises L0s and L1
> capabilities without supporting it.
> 
> Provide a platform-specific initialization hook to override the L0s and
> L1 support advertised in LNKCAP register of SG2042 Root Ports, so it
> doesn't try to enable those states.
> 
> Fixes: 4e27aca4881a ("riscv: sophgo: dts: add PCIe controllers for SG2042")
> Co-authored-by: Inochi Amaoto <inochiama@gmail.com>

Oops, this should be Co-developed-by instead of Co-authored-by, sorry
for the silly mistake...

> Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
> Signed-off-by: Yao Zi <me@ziyao.cc>

Regards,
Yao Zi