video: exynos: Add function to aux failures

Add the function name to the aux transaction failure messages so we can
tell which transaction is failing.

BUG=None
TEST=Tested on snow, saw function in error.

Change-Id: Ib395c474785f06d281f23c45f27129497ec00bfb
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/26687
Reviewed-by: Doug Anderson <dianders@chromium.org>

diff --git a/drivers/video/exynos/exynos_dp_reg.c b/drivers/video/exynos/exynos_dp_reg.c
index d0b290e..412c845 100644 (file)
--- a/drivers/video/exynos/exynos_dp_reg.c
+++ b/drivers/video/exynos/exynos_dp_reg.c
@@ -433,7 +433,8 @@ 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_err(dp->dev, "%s: Aux Transaction fail!\n",
+                               __func__);
        }
 
        return retval;
@@ -473,7 +474,8 @@ 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_err(dp->dev, "%s: Aux Transaction fail!\n",
+                               __func__);
        }
 
        /* Read data buffer */
@@ -537,7 +539,8 @@ 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_err(dp->dev, "%s: Aux Transaction fail!\n",
+                                       __func__);
                }
 
                start_offset += cur_data_count;
@@ -594,7 +597,8 @@ 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_err(dp->dev, "%s: Aux Transaction fail!\n",
+                                       __func__);
                }
 
                for (cur_data_idx = 0; cur_data_idx < cur_data_count;
@@ -639,7 +643,7 @@ 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_err(dp->dev, "%s: Aux Transaction fail!\n", __func__);
 
        return retval;
 }
@@ -679,7 +683,8 @@ 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_err(dp->dev, "%s: Aux Transaction fail!\n",
+                               __func__);
        }
 
        /* Read data */
@@ -739,7 +744,9 @@ 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_err(dp->dev,
+                                               "%s: Aux Transaction fail!\n",
+                                               __func__);
                        }
                        /* Check if Rx sends defer */
                        reg = readl(dp->reg_base + EXYNOS_DP_AUX_RX_COMM);