[PATCH v7 12/30] drm/bridge: dw-hdmi-qp: Rate limit i2c read error messages

[Cristian Ciocaltea]

During EDID reads, repeated i2c errors can flood the kernel log:

[   25.361716] dwhdmiqp-rockchip fde80000.hdmi: i2c read error
[   25.363376] dwhdmiqp-rockchip fde80000.hdmi: i2c read error
...
[   25.368671] dwhdmiqp-rockchip fde80000.hdmi: i2c read error
[   25.369440] dwhdmiqp-rockchip fde80000.hdmi: failed to get edid

Switch to dev_err_ratelimited() in dw_hdmi_qp_i2c_read() to reduce log
spam while still reporting the condition.

Reviewed-by: Heiko Stuebner <heiko at sntech.de>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at collabora.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
index 1c214a8e6dc2..b3318655ceab 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
@@ -561,7 +561,7 @@ static int dw_hdmi_qp_i2c_read(struct dw_hdmi_qp *hdmi,
 				dev_dbg_ratelimited(hdmi->dev,
 						    "i2c read timed out\n");
 			else
-				dev_err(hdmi->dev, "i2c read timed out\n");
+				dev_err_ratelimited(hdmi->dev, "i2c read timed out\n");
 			dw_hdmi_qp_write(hdmi, 0x01, I2CM_CONTROL0);
 			return -EAGAIN;
 		}
@@ -572,7 +572,7 @@ static int dw_hdmi_qp_i2c_read(struct dw_hdmi_qp *hdmi,
 				dev_dbg_ratelimited(hdmi->dev,
 						    "i2c read error\n");
 			else
-				dev_err(hdmi->dev, "i2c read error\n");
+				dev_err_ratelimited(hdmi->dev, "i2c read error\n");
 			dw_hdmi_qp_write(hdmi, 0x01, I2CM_CONTROL0);
 			return -EIO;
 		}

-- 
2.54.0