[PATCH v2] media: staging: rkisp1: set more precise size errors in debugfs

[PATCH v2] media: staging: rkisp1: set more precise size errors in debugfs

[Dafna Hirschfeld]

When a size error is signaled, it is possible to read a register
to see where the error comes from. So, in debugfs the general
error 'pic_size_err' can be replaced with 3 more precise errors.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
changes from v2: rename the variable 'is_size_error' to 'img_stabilization_size_error'

 drivers/staging/media/rkisp1/rkisp1-common.h | 4 +++-
 drivers/staging/media/rkisp1/rkisp1-dev.c    | 9 +++++++--
 drivers/staging/media/rkisp1/rkisp1-isp.c    | 7 ++++++-
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/rkisp1/rkisp1-common.h b/drivers/staging/media/rkisp1/rkisp1-common.h
index 0c4fe503adc9..d20f79ea55e4 100644
--- a/drivers/staging/media/rkisp1/rkisp1-common.h
+++ b/drivers/staging/media/rkisp1/rkisp1-common.h
@@ -226,7 +226,9 @@ struct rkisp1_resizer {
 struct rkisp1_debug {
 	struct dentry *debugfs_dir;
 	unsigned long data_loss;
-	unsigned long pic_size_error;
+	unsigned long outform_size_error;
+	unsigned long img_stabilization_size_error;
+	unsigned long inform_size_error;
 	unsigned long mipi_error;
 	unsigned long stats_error;
 	unsigned long stop_timeout[2];
diff --git a/drivers/staging/media/rkisp1/rkisp1-dev.c b/drivers/staging/media/rkisp1/rkisp1-dev.c
index 9ac38bafb839..a51459ec3fd5 100644
--- a/drivers/staging/media/rkisp1/rkisp1-dev.c
+++ b/drivers/staging/media/rkisp1/rkisp1-dev.c
@@ -438,8 +438,13 @@ static void rkisp1_debug_init(struct rkisp1_device *rkisp1)
 	}
 	debugfs_create_ulong("data_loss", 0444, debug->debugfs_dir,
 			     &debug->data_loss);
-	debugfs_create_ulong("pic_size_error", 0444,  debug->debugfs_dir,
-			     &debug->pic_size_error);
+	debugfs_create_ulong("outform_size_err", 0444,  debug->debugfs_dir,
+			     &debug->outform_size_error);
+	debugfs_create_ulong("img_stabilization_size_error", 0444,
+			     debug->debugfs_dir,
+			     &debug->img_stabilization_size_error);
+	debugfs_create_ulong("inform_size_error", 0444,  debug->debugfs_dir,
+			     &debug->inform_size_error);
 	debugfs_create_ulong("mipi_error", 0444, debug->debugfs_dir,
 			     &debug->mipi_error);
 	debugfs_create_ulong("stats_error", 0444, debug->debugfs_dir,
diff --git a/drivers/staging/media/rkisp1/rkisp1-isp.c b/drivers/staging/media/rkisp1/rkisp1-isp.c
index dc2b59a0160a..6543f7fd2392 100644
--- a/drivers/staging/media/rkisp1/rkisp1-isp.c
+++ b/drivers/staging/media/rkisp1/rkisp1-isp.c
@@ -1123,8 +1123,13 @@ void rkisp1_isp_isr(struct rkisp1_device *rkisp1)
 	if (status & RKISP1_CIF_ISP_PIC_SIZE_ERROR) {
 		/* Clear pic_size_error */
 		isp_err = rkisp1_read(rkisp1, RKISP1_CIF_ISP_ERR);
+		if (isp_err & RKISP1_CIF_ISP_ERR_INFORM_SIZE)
+			rkisp1->debug.inform_size_error++;
+		if (isp_err & RKISP1_CIF_ISP_ERR_IS_SIZE)
+			rkisp1->debug.img_stabilization_size_error++;
+		if (isp_err & RKISP1_CIF_ISP_ERR_OUTFORM_SIZE)
+			rkisp1->debug.outform_size_error++;
 		rkisp1_write(rkisp1, isp_err, RKISP1_CIF_ISP_ERR_CLR);
-		rkisp1->debug.pic_size_error++;
 	} else if (status & RKISP1_CIF_ISP_DATA_LOSS) {
 		/* keep track of data_loss in debugfs */
 		rkisp1->debug.data_loss++;
-- 
2.17.1