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[v7,3/5] media: rockchip: rkisp1: reduce number of histogram grid elements in uapi

Message ID 20210120164446.1220-4-dafna.hirschfeld@collabora.com
State New
Headers show
Series Fix the rkisp1 userspace API for later IP versions | expand

Commit Message

Dafna Hirschfeld Jan. 20, 2021, 4:44 p.m. UTC 
From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>

The uapi right now specifies an array size of 28 but the actual number
of elements is only 25 with the last 3 being unused.

Reduce the array size to the correct number of elements and change
the params code to iterate the array 25 times.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
---
 drivers/media/platform/rockchip/rkisp1/rkisp1-params.c | 3 ++-
 include/uapi/linux/rkisp1-config.h                     | 3 +--
 2 files changed, 3 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
index 6af4d551ffb5..021939466b24 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
@@ -589,7 +589,6 @@  static void rkisp1_hst_config(struct rkisp1_params *params,
 		RKISP1_CIF_ISP_HIST_WEIGHT_22TO03,
 		RKISP1_CIF_ISP_HIST_WEIGHT_13TO43,
 		RKISP1_CIF_ISP_HIST_WEIGHT_04TO34,
-		RKISP1_CIF_ISP_HIST_WEIGHT_44,
 	};
 	const u8 *weight;
 	unsigned int i;
@@ -622,6 +621,8 @@  static void rkisp1_hst_config(struct rkisp1_params *params,
 							    weight[2],
 							    weight[3]),
 				 hist_weight_regs[i]);
+
+	rkisp1_write(params->rkisp1, weight[0] & 0x1F, RKISP1_CIF_ISP_HIST_WEIGHT_44);
 }
 
 static void
diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h
index f75f8d698fb4..0da07cd1ceeb 100644
--- a/include/uapi/linux/rkisp1-config.h
+++ b/include/uapi/linux/rkisp1-config.h
@@ -102,8 +102,7 @@ 
 /*
  * Histogram calculation
  */
-/* Last 3 values unused. */
-#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE 28
+#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE 25
 
 /*
  * Defect Pixel Cluster Correction