File evdi_connector.c of Package failed_evdi

```c
#include <drm/drm_connector.h>
#include "evdi_connector.h"

static enum drm_mode_status evdi_mode_valid(struct drm_connector *connector,
                                            const struct drm_display_mode *mode)
{
    // Implementation of mode validation logic
    return MODE_OK;
}

static const struct drm_connector_helper_funcs evdi_connector_helper_funcs = {
    .mode_valid = evdi_mode_valid,
};

void evdi_connector_init(struct drm_device *dev, struct drm_connector *connector)
{
    drm_connector_helper_add(connector, &evdi_connector_helper_funcs);
    // Additional connector initialization code
}
```

---