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authorSean Paul <seanpaul@chromium.org>2012-08-07 20:54:15 -0700
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2012-08-23 13:22:28 +0000
commit8fefbb7519a37ad6c0752da1f939607d73a04ede (patch)
tree51ca357e065d7aacfd800ad88f33f0c220e10d5e /drivers/video/exynos
parent11bce6459fa3b9d7768a0a0d71c695e85f398c55 (diff)
video: exynos_dp: Change aux transaction failures
This patch adds the function name to aux transaction failure messages so we can tell which transaction is failing. It also changes the level of Aux Transaction fail messages from error to debug. We retry the transactions a few times and will report errors if warranted outside of this function. Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Bernie Thompson <bhthompson@chromium.org> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/exynos')
-rw-r--r--drivers/video/exynos/exynos_dp_reg.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/video/exynos/exynos_dp_reg.c b/drivers/video/exynos/exynos_dp_reg.c
index 174c445e18c1..f5f1df770391 100644
--- a/drivers/video/exynos/exynos_dp_reg.c
+++ b/drivers/video/exynos/exynos_dp_reg.c
@@ -479,7 +479,8 @@ int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
if (retval == 0)
break;
else
- dev_err(dp->dev, "Aux Transaction fail!\n");
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
return retval;
@@ -519,7 +520,8 @@ int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
if (retval == 0)
break;
else
- dev_err(dp->dev, "Aux Transaction fail!\n");
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
/* Read data buffer */
@@ -583,7 +585,8 @@ int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
if (retval == 0)
break;
else
- dev_err(dp->dev, "Aux Transaction fail!\n");
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
start_offset += cur_data_count;
@@ -640,7 +643,8 @@ int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
if (retval == 0)
break;
else
- dev_err(dp->dev, "Aux Transaction fail!\n");
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
for (cur_data_idx = 0; cur_data_idx < cur_data_count;
@@ -685,7 +689,7 @@ int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
/* Start AUX transaction */
retval = exynos_dp_start_aux_transaction(dp);
if (retval != 0)
- dev_err(dp->dev, "Aux Transaction fail!\n");
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
return retval;
}
@@ -725,7 +729,8 @@ int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
if (retval == 0)
break;
else
- dev_err(dp->dev, "Aux Transaction fail!\n");
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
}
/* Read data */
@@ -785,7 +790,9 @@ int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
if (retval == 0)
break;
else
- dev_err(dp->dev, "Aux Transaction fail!\n");
+ dev_dbg(dp->dev,
+ "%s: Aux Transaction fail!\n",
+ __func__);
}
/* Check if Rx sends defer */
reg = readl(dp->reg_base + EXYNOS_DP_AUX_RX_COMM);