Il 09/05/22 19:16, Bjorn Helgaas ha scritto:
On Mon, May 09, 2022 at 02:18:34PM +0200, AngeloGioacchino Del Regno wrote:
Il 04/04/22 16:48, AngeloGioacchino Del Regno ha scritto:
The controller may have been left out of reset by the bootloader,
in which case, before the powerup sequence, the controller will be
found preconfigured with values that were set before booting the
kernel: this produces a controller failure, with the result of
a failure during the mtk_pcie_startup_port() sequence as the PCIe
link never gets up.
To ensure that we get a clean start in an expected state, assert
both the PHY and MAC resets before executing the controller
power-up sequence.
Fixes: d3bf75b579b9 ("PCI: mediatek-gen3: Add MediaTek Gen3 driver for MT8192")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Friendly ping for an important fix :-)
d3bf75b579b9 appeared in v5.13-rc1 (May 2021, a year ago), so I assume
this is important for v5.19, but not urgent enough to require being in
v5.18. Right?
Hello Bjorn,
no it's not *very* urgent, as MediaTek devices that do require this will be
in v5.19 anyway...
Thanks,
Angelo
