[PATCH 1/3] phy: sun4i-usb: Fix of_xlate() argument check

[Jernej Škrabec]

Dne petek, 09. junij 2023 ob 12:56:19 CEST je Andre Przywara napisal(a):
> In its of_xlate() function, the Allwinner USB PHY driver compares the
> args_count variable against the number of implemented USB PHYs, although
> this is the *number of arguments* to the DT phandle property. Per the DT
> binding for this PHY device, this number is always one, so this check
> will always fail if the particular SoC implements exactly one USB PHY.
> So far this affected only the V3s (which has USB support disabled), but
> the F1C100s also sports one PHY only.
> 
> Fix that check to compare args_count against exactly 1, and the args[0]
> content (requested PHY number) against the number of implemented PHYs.
> 
> This fixes USB operation on the Allwinner V3s and allows to enable USB
> on the Allwinner F1C100s SoC.
> 
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>

Nice catch!

Reviewed-by: Jernej Skrabec <jernej.skrabec at gmail.com>

Best regards,
Jernej