isp: Add histogram supporthistogram

Support enabling the histogram statistics engine and retrieving
histogram data. Histogram data is currently ignored in the image quality
tuning implementation.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/iq.h b/iq.h
index be13a9f..5b5217a 100644
--- a/iq.h
+++ b/iq.h
@@ -69,6 +69,8 @@ struct iq_params {
 
 void iq_aewb_process(struct iq_tuning *iq,
 		     const struct omap3_isp_aewb_stats *stats);
+void iq_histogram_process(struct iq_tuning *iq,
+			  const struct omap3_isp_histogram_stats *stats);
 
 void iq_params_init(struct iq_params *params);
 int iq_params_parse(struct iq_params *params, const char *arg);