On Thursday 27 November 2014 16:34:58 Chanwoo Choi wrote:

+
+/*
+ * Samsung pinctrl driver data for Exynos5433 SoC. Exynos5433 SoC includes
+ * four gpio/pin-mux/pinconfig controllers.
+ */
+struct samsung_pin_ctrl exynos5433_pin_ctrl[] = {
+       {
+               /* pin-controller instance 0 data */
+               .pin_banks      = exynos5433_pin_banks0,
+               .nr_banks       = ARRAY_SIZE(exynos5433_pin_banks0),
+               .eint_wkup_init = exynos_eint_wkup_init,
+               .suspend        = exynos_pinctrl_suspend,
+               .resume         = exynos_pinctrl_resume,
+               .label          = "exynos5433-gpio-ctrl0",
+       }, {

I'm counting nine controllers, not four ;-)

These seem to all be fairly regular, my impression is that with the
move to arm64, you should come up with a new binding that can fully
describe each controller so you don't have to add new code and bindings
for each future SoC that uses the same scheme.

	Arnd