From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio

---
 kernel/include/media/v4l2-dv-timings.h |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/kernel/include/media/v4l2-dv-timings.h b/kernel/include/media/v4l2-dv-timings.h
index 4e7732d..2cc0cab 100644
--- a/kernel/include/media/v4l2-dv-timings.h
+++ b/kernel/include/media/v4l2-dv-timings.h
@@ -10,6 +10,17 @@
 
 #include <linux/videodev2.h>
 
+/**
+ * v4l2_calc_timeperframe - helper function to calculate timeperframe based
+ *	v4l2_dv_timings fields.
+ * @t: Timings for the video mode.
+ *
+ * Calculates the expected timeperframe using the pixel clock value and
+ * horizontal/vertical measures. This means that v4l2_dv_timings structure
+ * must be correctly and fully filled.
+ */
+struct v4l2_fract v4l2_calc_timeperframe(const struct v4l2_dv_timings *t);
+
 /*
  * v4l2_dv_timings_presets: list of all dv_timings presets.
  */

--
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