[PATCH i-g-t v3 2/2] lib/igt_kms: Add helper to get count of connected outputs

[Pranay Samala]

Introduce a new helper function to return the number of
actively connected outputs in a given igt_display_t instance.

Signed-off-by: Pranay Samala <pranay.samala at intel.com>
---
 lib/igt_kms.c | 19 +++++++++++++++++++
 lib/igt_kms.h |  1 +
 2 files changed, 20 insertions(+)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 7191bf92e..60e49037c 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -7519,3 +7519,22 @@ drmModePropertyBlobRes *igt_get_writeback_formats_blob(igt_output_t *output)
 
 	return blob;
 }
+
+/**
+ * igt_get_connected_output_count:
+ * @display: pointer to igt_display_t
+ *
+ * Get the number of actively connected outputs.
+ *
+ * Returns: the count of connected outputs.
+ */
+int igt_get_connected_output_count(igt_display_t *display)
+{
+	int conn_outputs = 0;
+
+	for (int i = 0; i < display->n_outputs; i++) {
+		if (igt_output_is_connected(&display->outputs[i]))
+			conn_outputs++;
+	}
+	return conn_outputs;
+}
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index f140ad91a..0dc0d622a 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -1285,6 +1285,7 @@ void igt_set_link_params(int drm_fd, igt_output_t *output,
 			   char *link_rate, char *lane_count);
 int igt_backlight_read(int *result, const char *fname, igt_backlight_context_t *context);
 int igt_backlight_write(int value, const char *fname, igt_backlight_context_t *context);
+int igt_get_connected_output_count(igt_display_t *display);
 
 drmModePropertyBlobRes *igt_get_writeback_formats_blob(igt_output_t *output);
 
-- 
2.34.1