[PATCH v2] media: aspeed: Use v4l2_dbg to replace v4l2_warn to avoid log spam

[Jammy Huang]

If the host is powered off, there will be many warning log:
  [  335.526279] aspeed-video 1e700000.video: Timed out; first mode detect
  [  335.544172] aspeed-video 1e700000.video: No signal; don't start frame
  [  337.165555] aspeed-video 1e700000.video: Timed out; first mode detect
  [  337.186214] aspeed-video 1e700000.video: No signal; don't start frame
  [  338.815501] aspeed-video 1e700000.video: Timed out; first mode detect
  [  338.834008] aspeed-video 1e700000.video: No signal; don't start frame

To avoid the log spam in this condition, replace v4l2_warn with v4l2_dbg.

Link: https://lore.kernel.org/openbmc/Y1dX9r9ybGjBrW0k@xxxxxxxxxxxxxxxxxxxxxxxx/

Reported by: Zev Weiss <zweiss@xxxxxxxxxxx>
Signed-off-by: Jammy Huang <jammy_huang@xxxxxxxxxxxxxx>
---
v2:
  - update commit message
---
 drivers/media/platform/aspeed/aspeed-video.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/aspeed/aspeed-video.c b/drivers/media/platform/aspeed/aspeed-video.c
index cf76aeee8cb6..662465d13a0e 100644
--- a/drivers/media/platform/aspeed/aspeed-video.c
+++ b/drivers/media/platform/aspeed/aspeed-video.c
@@ -586,13 +586,13 @@ static int aspeed_video_start_frame(struct aspeed_video *video)
 	bool bcd_buf_need = (video->format != VIDEO_FMT_STANDARD);
 
 	if (video->v4l2_input_status) {
-		v4l2_warn(&video->v4l2_dev, "No signal; don't start frame\n");
+		v4l2_dbg(1, debug, &video->v4l2_dev, "No signal; don't start frame\n");
 		return 0;
 	}
 
 	if (!(seq_ctrl & VE_SEQ_CTRL_COMP_BUSY) ||
 	    !(seq_ctrl & VE_SEQ_CTRL_CAP_BUSY)) {
-		v4l2_warn(&video->v4l2_dev, "Engine busy; don't start frame\n");
+		v4l2_dbg(1, debug, &video->v4l2_dev, "Engine busy; don't start frame\n");
 		return -EBUSY;
 	}
 
@@ -615,7 +615,7 @@ static int aspeed_video_start_frame(struct aspeed_video *video)
 				       struct aspeed_video_buffer, link);
 	if (!buf) {
 		spin_unlock_irqrestore(&video->lock, flags);
-		v4l2_warn(&video->v4l2_dev, "No buffers; don't start frame\n");
+		v4l2_dbg(1, debug, &video->v4l2_dev, "No buffers; don't start frame\n");
 		return -EPROTO;
 	}
 
@@ -796,7 +796,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
 			if (video->format == VIDEO_FMT_STANDARD &&
 			    list_is_last(&buf->link, &video->buffers)) {
 				empty = false;
-				v4l2_warn(&video->v4l2_dev, "skip to keep last frame updated\n");
+				v4l2_dbg(1, debug, &video->v4l2_dev, "skip to keep last frame updated\n");
 			} else {
 				buf->vb.vb2_buf.timestamp = ktime_get_ns();
 				buf->vb.sequence = video->sequence++;
@@ -1060,7 +1060,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 						      res_check(video),
 						      MODE_DETECT_TIMEOUT);
 		if (!rc) {
-			v4l2_warn(&video->v4l2_dev, "Timed out; first mode detect\n");
+			v4l2_dbg(1, debug, &video->v4l2_dev, "Timed out; first mode detect\n");
 			clear_bit(VIDEO_RES_DETECT, &video->flags);
 			return;
 		}
@@ -1081,7 +1081,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 						      MODE_DETECT_TIMEOUT);
 		clear_bit(VIDEO_RES_DETECT, &video->flags);
 		if (!rc) {
-			v4l2_warn(&video->v4l2_dev, "Timed out; second mode detect\n");
+			v4l2_dbg(1, debug, &video->v4l2_dev, "Timed out; second mode detect\n");
 			return;
 		}
 
@@ -1104,7 +1104,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 	} while (invalid_resolution && (tries++ < INVALID_RESOLUTION_RETRIES));
 
 	if (invalid_resolution) {
-		v4l2_warn(&video->v4l2_dev, "Invalid resolution detected\n");
+		v4l2_dbg(1, debug, &video->v4l2_dev, "Invalid resolution detected\n");
 		return;
 	}
 
@@ -1856,7 +1856,7 @@ static void aspeed_video_stop_streaming(struct vb2_queue *q)
 				!test_bit(VIDEO_FRAME_INPRG, &video->flags),
 				STOP_TIMEOUT);
 	if (!rc) {
-		v4l2_warn(&video->v4l2_dev, "Timed out when stopping streaming\n");
+		v4l2_dbg(1, debug, &video->v4l2_dev, "Timed out when stopping streaming\n");
 
 		/*
 		 * Need to force stop any DMA and try and get HW into a good

base-commit: 08ad43d554bacb9769c6a69d5f771f02f5ba411c
prerequisite-patch-id: bf47e8ab2998acfbc32be5a4b7b5ae8a3ae4218b
prerequisite-patch-id: bf82715983e08f2e810ff1a82ce644f5f9006cd9
prerequisite-patch-id: 28a2040ef0235e5765f05d2fc5529bce2a0f4c6f
prerequisite-patch-id: 7e761c779730536db8baf50db5fc8caf058e95af
prerequisite-patch-id: c48ea20973fa35938a7d33a0e20d2900df48755f
-- 
2.25.1