esp32/mphalport.h: Make mp_hal_pin_<dir> select gpio on the pad.

MrSurly · dpgeorge · commit d0e11f76e3f6 · 2017-10-03T18:13:55.000+11:00
Otherwise interfaces like software I2C and SPI don't initialise correctly.
diff --git a/ports/esp32/mphalport.h b/ports/esp32/mphalport.h
@@ -59,12 +59,15 @@ mp_hal_pin_obj_t machine_pin_get_id(mp_obj_t pin_in);
 #define mp_obj_get_pin(o) machine_pin_get_id(o) // legacy name; only to support esp8266/modonewire
 #define mp_hal_pin_name(p) (p)
 static inline void mp_hal_pin_input(mp_hal_pin_obj_t pin) {
+    gpio_pad_select_gpio(pin);
     gpio_set_direction(pin, GPIO_MODE_INPUT);
 }
 static inline void mp_hal_pin_output(mp_hal_pin_obj_t pin) {
+    gpio_pad_select_gpio(pin);
     gpio_set_direction(pin, GPIO_MODE_INPUT_OUTPUT);
 }
 static inline void mp_hal_pin_open_drain(mp_hal_pin_obj_t pin) {
+    gpio_pad_select_gpio(pin);
     gpio_set_direction(pin, GPIO_MODE_INPUT_OUTPUT_OD);
 }
 static inline void mp_hal_pin_od_low(mp_hal_pin_obj_t pin) {

Original file line number	Diff line number	Diff line change
`@@ -59,12 +59,15 @@ mp_hal_pin_obj_t machine_pin_get_id(mp_obj_t pin_in);`
`59`	`59`	`#define mp_obj_get_pin(o) machine_pin_get_id(o) // legacy name; only to support esp8266/modonewire`
`60`	`60`	`#define mp_hal_pin_name(p) (p)`
`61`	`61`	`static inline void mp_hal_pin_input(mp_hal_pin_obj_t pin) {`
	`62`	`+ gpio_pad_select_gpio(pin);`
`62`	`63`	`gpio_set_direction(pin, GPIO_MODE_INPUT);`
`63`	`64`	`}`
`64`	`65`	`static inline void mp_hal_pin_output(mp_hal_pin_obj_t pin) {`
	`66`	`+ gpio_pad_select_gpio(pin);`
`65`	`67`	`gpio_set_direction(pin, GPIO_MODE_INPUT_OUTPUT);`
`66`	`68`	`}`
`67`	`69`	`static inline void mp_hal_pin_open_drain(mp_hal_pin_obj_t pin) {`
	`70`	`+ gpio_pad_select_gpio(pin);`
`68`	`71`	`gpio_set_direction(pin, GPIO_MODE_INPUT_OUTPUT_OD);`
`69`	`72`	`}`
`70`	`73`	`static inline void mp_hal_pin_od_low(mp_hal_pin_obj_t pin) {`