Quoting Mike Looijmans (2018-03-13 01:54:03)
> When changing or retrieving clock parents, the caller is in a sleepable
> state (like prepare) so the GPIO operation need not be atomic. Replace
> gpiod_{g|s}et_value with gpiod_{g|s}et_value_cansleep in the {g|s}et_parent
> calls for the GPIO based clock mux.
>
> This fixes a "slowpath" warning when the GPIO controller is an I2C expander
> or something similar.
>
> Signed-off-by: Mike Looijmans <[email protected]>
> ---Applied to clk-next
