pinctrl: sunxi: support multiple pin controller

Add support for multiple pin controller instances.

First remove the static definition of the sunxi gpio chip struct and fill
the dynamically struct instead.
Then define a new pin_base field in the sunxi_pinctrl_desc which will be
used to specify the gpiochip base pin.

Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/pinctrl/pinctrl-sunxi.h b/drivers/pinctrl/pinctrl-sunxi.h
index ed3c4d709863..35d15b229a70 100644
--- a/drivers/pinctrl/pinctrl-sunxi.h
+++ b/drivers/pinctrl/pinctrl-sunxi.h
@@ -450,6 +450,7 @@ struct sunxi_pinctrl_desc {
         int                             npins;
         struct pinctrl_gpio_range       *ranges;
         int                             nranges;
+        unsigned                        pin_base;
 };
 
 struct sunxi_pinctrl_function {