On Tue, Jul 3, 2018 at 5:19 PM Niklas Söderlund
<[email protected]> wrote:
> The datasheet does not document any registers to control drive strength,
> and no drive strength registers are for this reason described for this
> SoC. The flags indicating that drive strength can be controlled are
> however set for some pins in the driver.
>
> This leads to a NULL pointer dereference when the sh-pfc core tries to
> access the struct describing the drive strength registers, for example
> when reading the sysfs file pinconf-pins.
>
> Fix this by removing the SH_PFC_PIN_CFG_DRIVE_STRENGTH from all pins.
>
> Fixes: b92ac66a1819602b ("pinctrl: sh-pfc: Add R8A77970 PFC support")
> Signed-off-by: Niklas Söderlund <[email protected]>
> Reviewed-by: Simon Horman <[email protected]>
> Reviewed-by: Sergei Shtylyov <[email protected]>
> Reviewed-by: Geert Uytterhoeven <[email protected]>
Patch applied directly for fixes per Geert's suggestion.
Yours,
Linus Walleij
