[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/gpio/gpiolib-legacy.c b/src/kernel/linux/v4.14/drivers/gpio/gpiolib-legacy.c
new file mode 100644
index 0000000..8b83099
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/gpio/gpiolib-legacy.c
@@ -0,0 +1,112 @@
+#include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
+
+#include <linux/gpio.h>
+
+#include "gpiolib.h"
+
+void gpio_free(unsigned gpio)
+{
+ gpiod_free(gpio_to_desc(gpio));
+}
+EXPORT_SYMBOL_GPL(gpio_free);
+
+/**
+ * gpio_request_one - request a single GPIO with initial configuration
+ * @gpio: the GPIO number
+ * @flags: GPIO configuration as specified by GPIOF_*
+ * @label: a literal description string of this GPIO
+ */
+int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
+{
+ struct gpio_desc *desc;
+ int err;
+
+ desc = gpio_to_desc(gpio);
+
+ /* Compatibility: assume unavailable "valid" GPIOs will appear later */
+ if (!desc && gpio_is_valid(gpio))
+ return -EPROBE_DEFER;
+
+ err = gpiod_request(desc, label);
+ if (err)
+ return err;
+
+ if (flags & GPIOF_OPEN_DRAIN)
+ set_bit(FLAG_OPEN_DRAIN, &desc->flags);
+
+ if (flags & GPIOF_OPEN_SOURCE)
+ set_bit(FLAG_OPEN_SOURCE, &desc->flags);
+
+ if (flags & GPIOF_ACTIVE_LOW)
+ set_bit(FLAG_ACTIVE_LOW, &desc->flags);
+
+ if (flags & GPIOF_DIR_IN)
+ err = gpiod_direction_input(desc);
+ else
+ err = gpiod_direction_output_raw(desc,
+ (flags & GPIOF_INIT_HIGH) ? 1 : 0);
+
+ if (err)
+ goto free_gpio;
+
+ if (flags & GPIOF_EXPORT) {
+ err = gpiod_export(desc, flags & GPIOF_EXPORT_CHANGEABLE);
+ if (err)
+ goto free_gpio;
+ }
+
+ return 0;
+
+ free_gpio:
+ gpiod_free(desc);
+ return err;
+}
+EXPORT_SYMBOL_GPL(gpio_request_one);
+
+int gpio_request(unsigned gpio, const char *label)
+{
+ struct gpio_desc *desc = gpio_to_desc(gpio);
+
+ /* Compatibility: assume unavailable "valid" GPIOs will appear later */
+ if (!desc && gpio_is_valid(gpio))
+ return -EPROBE_DEFER;
+
+ return gpiod_request(desc, label);
+}
+EXPORT_SYMBOL_GPL(gpio_request);
+
+/**
+ * gpio_request_array - request multiple GPIOs in a single call
+ * @array: array of the 'struct gpio'
+ * @num: how many GPIOs in the array
+ */
+int gpio_request_array(const struct gpio *array, size_t num)
+{
+ int i, err;
+
+ for (i = 0; i < num; i++, array++) {
+ err = gpio_request_one(array->gpio, array->flags, array->label);
+ if (err)
+ goto err_free;
+ }
+ return 0;
+
+err_free:
+ while (i--)
+ gpio_free((--array)->gpio);
+ return err;
+}
+EXPORT_SYMBOL_GPL(gpio_request_array);
+
+/**
+ * gpio_free_array - release multiple GPIOs in a single call
+ * @array: array of the 'struct gpio'
+ * @num: how many GPIOs in the array
+ */
+void gpio_free_array(const struct gpio *array, size_t num)
+{
+ while (num--)
+ gpio_free((array++)->gpio);
+}
+EXPORT_SYMBOL_GPL(gpio_free_array);