rename i2c_num_status to peripherals_i2c_get_free_num

Author: microdev1

ports/espressif/common-hal/busio/I2C.c

@@ -79,7 +79,7 @@ void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
     }
     self->sda_pin = sda;
     self->scl_pin = scl;
-    self->i2c_num = i2c_num_status();
+    self->i2c_num = peripherals_i2c_get_free_num();
 
     if (self->i2c_num == I2C_NUM_MAX) {
         mp_raise_ValueError(translate("All I2C peripherals are in use"));

ports/espressif/common-hal/i2cperipheral/I2CPeripheral.c

@@ -50,7 +50,7 @@ void common_hal_i2cperipheral_i2c_peripheral_construct(i2cperipheral_i2c_periphe
 
     self->sda_pin = sda;
     self->scl_pin = scl;
-    self->i2c_num = i2c_num_status();
+    self->i2c_num = peripherals_i2c_get_free_num();
 
     if (self->i2c_num == I2C_NUM_MAX) {
         mp_raise_ValueError(translate("All I2C peripherals are in use"));

ports/espressif/peripherals/i2c.c

@@ -68,11 +68,12 @@ void peripherals_i2c_deinit(i2c_port_t num) {
     i2c_status[num] = STATUS_FREE;
 }
 
-i2c_port_t i2c_num_status(void) {
+i2c_port_t peripherals_i2c_get_free_num(void) {
     i2c_port_t i2c_num = I2C_NUM_MAX;
     for (i2c_port_t num = 0; num < I2C_NUM_MAX; num++) {
         if (i2c_status[num] == STATUS_FREE) {
             i2c_num = num;
+            break;
         }
     }
     if (i2c_num != I2C_NUM_MAX) {

ports/espressif/peripherals/i2c.h

@@ -33,6 +33,6 @@ extern void i2c_reset(void);
 extern void never_reset_i2c(i2c_port_t num);
 extern esp_err_t peripherals_i2c_init(i2c_port_t num, const i2c_config_t *i2c_conf);
 extern void peripherals_i2c_deinit(i2c_port_t num);
-extern i2c_port_t i2c_num_status(void);
+extern i2c_port_t peripherals_i2c_get_free_num(void);
 
 #endif  // MICROPY_INCLUDED_ESPRESSIF_PERIPHERALS_I2C_HANDLER_H