The 'clk' and 'irq' fields were only ever used in the probe function.
Therefore they can be moved to be simple local variables of the probe
function.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200505221336.222313-5-paul@crapouillou.netSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>