pinctrl: actions: pinctrl-owl: Supply missing 'struct owl_pinctrl' attribute descriptions

Fixes the following W=1 kernel build warning(s):

 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'clk' not described in 'owl_pinctrl'
 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'irq_chip' not described in 'owl_pinctrl'
 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'num_irq' not described in 'owl_pinctrl'
 drivers/pinctrl/actions/pinctrl-owl.c:52: warning: Function parameter or member 'irq' not described in 'owl_pinctrl'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: "Andreas Färber" <afaerber@suse.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: David Liu <liuwei@actions-semi.com>
Link: https://lore.kernel.org/r/20200713144930.1034632-2-lee.jones@linaro.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/actions/pinctrl-owl.c

@@ -35,8 +35,12 @@
  * @pctrldev: pinctrl handle
  * @chip: gpio chip
  * @lock: spinlock to protect registers
+ * @clk: clock control
  * @soc: reference to soc_data
  * @base: pinctrl register base address
+ * @irq_chip: IRQ chip information
+ * @num_irq: number of possible interrupts
+ * @irq: interrupt numbers
  */
 struct owl_pinctrl {
 	struct device *dev;