[RFC PATCH 1/8] drm: exynos/dp: fix code style

[Yakir Yang <ykk@rock-chips.com>]

make checkpatch.pl script happy

Signed-off-by: Yakir Yang <ykk@rock-chips.com>
---
  drivers/gpu/drm/exynos/exynos_dp_core.c | 224 
++++++++++++++++----------------
  drivers/gpu/drm/exynos/exynos_dp_core.h |  53 ++++----
  drivers/gpu/drm/exynos/exynos_dp_reg.c  | 100 +++++++-------
  3 files changed, 185 insertions(+), 192 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c 
b/drivers/gpu/drm/exynos/exynos_dp_core.c
index 172b800..a8097a4 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -114,8 +114,8 @@ static int exynos_dp_read_edid(struct 
exynos_dp_device *dp)

      /* Read Extension Flag, Number of 128-byte EDID extension blocks */
      retval = exynos_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
-                EDID_EXTENSION_FLAG,
-                &extend_block);
+                          EDID_EXTENSION_FLAG,
+                          &extend_block);
      if (retval)
          return retval;

@@ -123,10 +123,11 @@ static int exynos_dp_read_edid(struct 
exynos_dp_device *dp)
          dev_dbg(dp->dev, "EDID data includes a single extension!\n");

          /* Read EDID data */
-        retval = exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
-                        EDID_HEADER_PATTERN,
-                        EDID_BLOCK_LENGTH,
-                        &edid[EDID_HEADER_PATTERN]);
+        retval =
+        exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+                          EDID_HEADER_PATTERN,
+                          EDID_BLOCK_LENGTH,
+                          &edid[EDID_HEADER_PATTERN]);
          if (retval != 0) {
              dev_err(dp->dev, "EDID Read failed!\n");
              return -EIO;
@@ -138,11 +139,11 @@ static int exynos_dp_read_edid(struct 
exynos_dp_device *dp)
          }

          /* Read additional EDID data */
-        retval = exynos_dp_read_bytes_from_i2c(dp,
-                I2C_EDID_DEVICE_ADDR,
-                EDID_BLOCK_LENGTH,
-                EDID_BLOCK_LENGTH,
-                &edid[EDID_BLOCK_LENGTH]);
+        retval =
+        exynos_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+                          EDID_BLOCK_LENGTH,
+                          EDID_BLOCK_LENGTH,
+                          &edid[EDID_BLOCK_LENGTH]);
          if (retval != 0) {
              dev_err(dp->dev, "EDID Read failed!\n");
              return -EIO;
@@ -154,24 +155,22 @@ static int exynos_dp_read_edid(struct 
exynos_dp_device *dp)
          }

          exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
-                    &test_vector);
+                          &test_vector);
          if (test_vector & DP_TEST_LINK_EDID_READ) {
-            exynos_dp_write_byte_to_dpcd(dp,
-                DP_TEST_EDID_CHECKSUM,
+            exynos_dp_write_byte_to_dpcd(
+                dp, DP_TEST_EDID_CHECKSUM,
                  edid[EDID_BLOCK_LENGTH + EDID_CHECKSUM]);
-            exynos_dp_write_byte_to_dpcd(dp,
-                DP_TEST_RESPONSE,
+            exynos_dp_write_byte_to_dpcd(
+                dp, DP_TEST_RESPONSE,
                  DP_TEST_EDID_CHECKSUM_WRITE);
          }
      } else {
          dev_info(dp->dev, "EDID data does not include any extensions.\n");

          /* Read EDID data */
-        retval = exynos_dp_read_bytes_from_i2c(dp,
-                I2C_EDID_DEVICE_ADDR,
-                EDID_HEADER_PATTERN,
-                EDID_BLOCK_LENGTH,
-                &edid[EDID_HEADER_PATTERN]);
+        retval = exynos_dp_read_bytes_from_i2c(
+                dp, I2C_EDID_DEVICE_ADDR, EDID_HEADER_PATTERN,
+                EDID_BLOCK_LENGTH, &edid[EDID_HEADER_PATTERN]);
          if (retval != 0) {
              dev_err(dp->dev, "EDID Read failed!\n");
              return -EIO;
@@ -182,16 +181,15 @@ static int exynos_dp_read_edid(struct 
exynos_dp_device *dp)
              return -EIO;
          }

-        exynos_dp_read_byte_from_dpcd(dp,
-            DP_TEST_REQUEST,
-            &test_vector);
+        exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+                          &test_vector);
          if (test_vector & DP_TEST_LINK_EDID_READ) {
-            exynos_dp_write_byte_to_dpcd(dp,
-                DP_TEST_EDID_CHECKSUM,
-                edid[EDID_CHECKSUM]);
-            exynos_dp_write_byte_to_dpcd(dp,
-                DP_TEST_RESPONSE,
-                DP_TEST_EDID_CHECKSUM_WRITE);
+            exynos_dp_write_byte_to_dpcd(
+                    dp, DP_TEST_EDID_CHECKSUM,
+                    edid[EDID_CHECKSUM]);
+            exynos_dp_write_byte_to_dpcd(
+                    dp, DP_TEST_RESPONSE,
+                    DP_TEST_EDID_CHECKSUM_WRITE);
          }
      }

@@ -206,8 +204,7 @@ static int exynos_dp_handle_edid(struct 
exynos_dp_device *dp)
      int retval;

      /* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
-    retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV,
-                12, buf);
+    retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
      if (retval)
          return retval;

@@ -222,19 +219,21 @@ static int exynos_dp_handle_edid(struct 
exynos_dp_device *dp)
  }

  static void exynos_dp_enable_rx_to_enhanced_mode(struct 
exynos_dp_device *dp,
-                        bool enable)
+                         bool enable)
  {
      u8 data;

      exynos_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);

      if (enable)
-        exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
-            DP_LANE_COUNT_ENHANCED_FRAME_EN |
-            DPCD_LANE_COUNT_SET(data));
+        exynos_dp_write_byte_to_dpcd(
+                    dp, DP_LANE_COUNT_SET,
+                    DP_LANE_COUNT_ENHANCED_FRAME_EN |
+                    DPCD_LANE_COUNT_SET(data));
      else
-        exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
-            DPCD_LANE_COUNT_SET(data));
+        exynos_dp_write_byte_to_dpcd(
+                    dp, DP_LANE_COUNT_SET,
+                    DPCD_LANE_COUNT_SET(data));
  }

  static int exynos_dp_is_enhanced_mode_available(struct 
exynos_dp_device *dp)
@@ -261,13 +260,12 @@ static void exynos_dp_training_pattern_dis(struct 
exynos_dp_device *dp)
  {
      exynos_dp_set_training_pattern(dp, DP_NONE);

-    exynos_dp_write_byte_to_dpcd(dp,
-        DP_TRAINING_PATTERN_SET,
-        DP_TRAINING_PATTERN_DISABLE);
+    exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+                     DP_TRAINING_PATTERN_DISABLE);
  }

  static void exynos_dp_set_lane_lane_pre_emphasis(struct 
exynos_dp_device *dp,
-                    int pre_emphasis, int lane)
+                         int pre_emphasis, int lane)
  {
      switch (lane) {
      case 0:
@@ -307,15 +305,14 @@ static int exynos_dp_link_start(struct 
exynos_dp_device *dp)
      /* Setup RX configuration */
      buf[0] = dp->link_train.link_rate;
      buf[1] = dp->link_train.lane_count;
-    retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET,
-                2, buf);
+    retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
      if (retval)
          return retval;

      /* Set TX pre-emphasis to minimum */
      for (lane = 0; lane < lane_count; lane++)
-        exynos_dp_set_lane_lane_pre_emphasis(dp,
-            PRE_EMPHASIS_LEVEL_0, lane);
+        exynos_dp_set_lane_lane_pre_emphasis(dp, PRE_EMPHASIS_LEVEL_0,
+                             lane);

      /* Wait for PLL lock */
      pll_tries = 0;
@@ -333,9 +330,9 @@ static int exynos_dp_link_start(struct 
exynos_dp_device *dp)
      exynos_dp_set_training_pattern(dp, TRAINING_PTN1);

      /* Set RX training pattern */
-    retval = exynos_dp_write_byte_to_dpcd(dp,
-            DP_TRAINING_PATTERN_SET,
-            DP_LINK_SCRAMBLING_DISABLE | DP_TRAINING_PATTERN_1);
+    retval = exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+                          DP_LINK_SCRAMBLING_DISABLE |
+                          DP_TRAINING_PATTERN_1);
      if (retval)
          return retval;

@@ -344,7 +341,7 @@ static int exynos_dp_link_start(struct 
exynos_dp_device *dp)
                  DP_TRAIN_VOLTAGE_SWING_LEVEL_0;

      retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
-            lane_count, buf);
+                           lane_count, buf);

      return retval;
  }
@@ -352,7 +349,7 @@ static int exynos_dp_link_start(struct 
exynos_dp_device *dp)
  static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int 
lane)
  {
      int shift = (lane & 1) * 4;
-    u8 link_value = link_status[lane>>1];
+    u8 link_value = link_status[lane >> 1];

      return (link_value >> shift) & 0xf;
  }
@@ -371,7 +368,7 @@ static int exynos_dp_clock_recovery_ok(u8 
link_status[2], int lane_count)
  }

  static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
-                int lane_count)
+                   int lane_count)
  {
      int lane;
      u8 lane_status;
@@ -390,10 +387,10 @@ static int exynos_dp_channel_eq_ok(u8 
link_status[2], u8 link_align,
  }

  static unsigned char exynos_dp_get_adjust_request_voltage(u8 
adjust_request[2],
-                            int lane)
+                              int lane)
  {
      int shift = (lane & 1) * 4;
-    u8 link_value = adjust_request[lane>>1];
+    u8 link_value = adjust_request[lane >> 1];

      return (link_value >> shift) & 0x3;
  }
@@ -403,13 +400,13 @@ static unsigned char 
exynos_dp_get_adjust_request_pre_emphasis(
                      int lane)
  {
      int shift = (lane & 1) * 4;
-    u8 link_value = adjust_request[lane>>1];
+    u8 link_value = adjust_request[lane >> 1];

      return ((link_value >> shift) & 0xc) >> 2;
  }

  static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
-                    u8 training_lane_set, int lane)
+                         u8 training_lane_set, int lane)
  {
      switch (lane) {
      case 0:
@@ -465,7 +462,7 @@ static void exynos_dp_reduce_link_rate(struct 
exynos_dp_device *dp)
  }

  static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device 
*dp,
-                    u8 adjust_request[2])
+                           u8 adjust_request[2])
  {
      int lane, lane_count;
      u8 voltage_swing, pre_emphasis, training_lane;
@@ -498,13 +495,13 @@ static int exynos_dp_process_clock_recovery(struct 
exynos_dp_device *dp)

      lane_count = dp->link_train.lane_count;

-    retval =  exynos_dp_read_bytes_from_dpcd(dp,
-            DP_LANE0_1_STATUS, 2, link_status);
+    retval =  exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+                         2, link_status);
      if (retval)
          return retval;

-    retval =  exynos_dp_read_bytes_from_dpcd(dp,
-            DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+    retval =  exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+                         2, adjust_request);
      if (retval)
          return retval;

@@ -512,8 +509,8 @@ static int exynos_dp_process_clock_recovery(struct 
exynos_dp_device *dp)
          /* set training pattern 2 for EQ */
          exynos_dp_set_training_pattern(dp, TRAINING_PTN2);

-        retval = exynos_dp_write_byte_to_dpcd(dp,
-                DP_TRAINING_PATTERN_SET,
+        retval = exynos_dp_write_byte_to_dpcd(
+                dp, DP_TRAINING_PATTERN_SET,
                  DP_LINK_SCRAMBLING_DISABLE |
                  DP_TRAINING_PATTERN_2);
          if (retval)
@@ -527,8 +524,9 @@ static int exynos_dp_process_clock_recovery(struct 
exynos_dp_device *dp)
                              dp, lane);
              voltage_swing = exynos_dp_get_adjust_request_voltage(
                              adjust_request, lane);
-            pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
-                            adjust_request, lane);
+            pre_emphasis =
+                exynos_dp_get_adjust_request_pre_emphasis(
+                        adjust_request, lane);

              if (DPCD_VOLTAGE_SWING_GET(training_lane) ==
                      voltage_swing &&
@@ -551,11 +549,11 @@ static int exynos_dp_process_clock_recovery(struct 
exynos_dp_device *dp)
      exynos_dp_get_adjust_training_lane(dp, adjust_request);

      for (lane = 0; lane < lane_count; lane++)
-        exynos_dp_set_lane_link_training(dp,
-            dp->link_train.training_lane[lane], lane);
+        exynos_dp_set_lane_link_training(
+                dp, dp->link_train.training_lane[lane], lane);

-    retval = exynos_dp_write_bytes_to_dpcd(dp,
-            DP_TRAINING_LANE0_SET, lane_count,
+    retval = exynos_dp_write_bytes_to_dpcd(
+            dp, DP_TRAINING_LANE0_SET, lane_count,
              dp->link_train.training_lane);
      if (retval)
          return retval;
@@ -573,8 +571,8 @@ static int 
exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)

      lane_count = dp->link_train.lane_count;

-    retval = exynos_dp_read_bytes_from_dpcd(dp,
-            DP_LANE0_1_STATUS, 2, link_status);
+    retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+                        2, link_status);
      if (retval)
          return retval;

@@ -583,13 +581,13 @@ static int 
exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
          return -EIO;
      }

-    retval = exynos_dp_read_bytes_from_dpcd(dp,
-            DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
+    retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+                        2, adjust_request);
      if (retval)
          return retval;

-    retval = exynos_dp_read_byte_from_dpcd(dp,
-            DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
+    retval = exynos_dp_read_byte_from_dpcd(
+            dp, DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
      if (retval)
          return retval;

@@ -628,17 +626,18 @@ static int 
exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
      }

      for (lane = 0; lane < lane_count; lane++)
-        exynos_dp_set_lane_link_training(dp,
-            dp->link_train.training_lane[lane], lane);
+        exynos_dp_set_lane_link_training(
+                dp, dp->link_train.training_lane[lane], lane);

      retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
-            lane_count, dp->link_train.training_lane);
+                           lane_count,
+                           dp->link_train.training_lane);

      return retval;
  }

  static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
-                    u8 *bandwidth)
+                       u8 *bandwidth)
  {
      u8 data;

@@ -651,7 +650,7 @@ static void exynos_dp_get_max_rx_bandwidth(struct 
exynos_dp_device *dp,
  }

  static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
-                    u8 *lane_count)
+                        u8 *lane_count)
  {
      u8 data;

@@ -664,8 +663,8 @@ static void exynos_dp_get_max_rx_lane_count(struct 
exynos_dp_device *dp,
  }

  static void exynos_dp_init_training(struct exynos_dp_device *dp,
-            enum link_lane_count_type max_lane,
-            enum link_rate_type max_rate)
+                    enum link_lane_count_type max_lane,
+                    enum link_rate_type max_rate)
  {
      /*
       * MACRO_RST must be applied after the PLL_LOCK to avoid
@@ -678,7 +677,7 @@ static void exynos_dp_init_training(struct 
exynos_dp_device *dp,
      exynos_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);

      if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
-       (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
+        (dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
          dev_err(dp->dev, "Rx Max Link Rate is abnormal :%x !\n",
              dp->link_train.link_rate);
          dp->link_train.link_rate = LINK_RATE_1_62GBPS;
@@ -738,8 +737,7 @@ static int exynos_dp_sw_link_training(struct 
exynos_dp_device *dp)
  }

  static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
-                u32 count,
-                u32 bwtype)
+                    u32 count, u32 bwtype)
  {
      int i;
      int retval;
@@ -830,21 +828,19 @@ static void exynos_dp_enable_scramble(struct 
exynos_dp_device *dp, bool enable)
      if (enable) {
          exynos_dp_enable_scrambling(dp);

-        exynos_dp_read_byte_from_dpcd(dp,
-            DP_TRAINING_PATTERN_SET,
-            &data);
-        exynos_dp_write_byte_to_dpcd(dp,
-            DP_TRAINING_PATTERN_SET,
+        exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+                          &data);
+        exynos_dp_write_byte_to_dpcd(
+            dp, DP_TRAINING_PATTERN_SET,
              (u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
      } else {
          exynos_dp_disable_scrambling(dp);

-        exynos_dp_read_byte_from_dpcd(dp,
-            DP_TRAINING_PATTERN_SET,
-            &data);
-        exynos_dp_write_byte_to_dpcd(dp,
-            DP_TRAINING_PATTERN_SET,
-            (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
+        exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+                          &data);
+        exynos_dp_write_byte_to_dpcd(
+                dp, DP_TRAINING_PATTERN_SET,
+                (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
      }
  }

@@ -915,7 +911,7 @@ static void exynos_dp_commit(struct 
exynos_drm_display *display)
      }

      ret = exynos_dp_set_link_train(dp, dp->video_info->lane_count,
-                    dp->video_info->link_rate);
+                       dp->video_info->link_rate);
      if (ret) {
          dev_err(dp->dev, "unable to do link train\n");
          return;
@@ -1004,7 +1000,7 @@ static struct drm_connector_helper_funcs 
exynos_dp_connector_helper_funcs = {

  /* returns the number of bridges attached */
  static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
-        struct drm_encoder *encoder)
+                    struct drm_encoder *encoder)
  {
      int ret;

@@ -1020,7 +1016,7 @@ static int exynos_drm_attach_lcd_bridge(struct 
exynos_dp_device *dp,
  }

  static int exynos_dp_create_connector(struct exynos_drm_display *display,
-                struct drm_encoder *encoder)
+                      struct drm_encoder *encoder)
  {
      struct exynos_dp_device *dp = display_to_dp(display);
      struct drm_connector *connector = &dp->connector;
@@ -1038,7 +1034,8 @@ static int exynos_dp_create_connector(struct 
exynos_drm_display *display,
      connector->polled = DRM_CONNECTOR_POLL_HPD;

      ret = drm_connector_init(dp->drm_dev, connector,
-            &exynos_dp_connector_funcs, DRM_MODE_CONNECTOR_eDP);
+                 &exynos_dp_connector_funcs,
+                 DRM_MODE_CONNECTOR_eDP);
      if (ret) {
          DRM_ERROR("Failed to initialize connector with drm\n");
          return ret;
@@ -1148,8 +1145,8 @@ static struct video_info 
*exynos_dp_dt_parse_pdata(struct device *dev)
      struct device_node *dp_node = dev->of_node;
      struct video_info *dp_video_config;

-    dp_video_config = devm_kzalloc(dev,
-                sizeof(*dp_video_config), GFP_KERNEL);
+    dp_video_config = devm_kzalloc(dev, sizeof(*dp_video_config),
+                       GFP_KERNEL);
      if (!dp_video_config)
          return ERR_PTR(-ENOMEM);

@@ -1163,37 +1160,37 @@ static struct video_info 
*exynos_dp_dt_parse_pdata(struct device *dev)
          of_property_read_bool(dp_node, "interlaced");

      if (of_property_read_u32(dp_node, "samsung,color-space",
-                &dp_video_config->color_space)) {
+                 &dp_video_config->color_space)) {
          dev_err(dev, "failed to get color-space\n");
          return ERR_PTR(-EINVAL);
      }

      if (of_property_read_u32(dp_node, "samsung,dynamic-range",
-                &dp_video_config->dynamic_range)) {
+                 &dp_video_config->dynamic_range)) {
          dev_err(dev, "failed to get dynamic-range\n");
          return ERR_PTR(-EINVAL);
      }

      if (of_property_read_u32(dp_node, "samsung,ycbcr-coeff",
-                &dp_video_config->ycbcr_coeff)) {
+                 &dp_video_config->ycbcr_coeff)) {
          dev_err(dev, "failed to get ycbcr-coeff\n");
          return ERR_PTR(-EINVAL);
      }

      if (of_property_read_u32(dp_node, "samsung,color-depth",
-                &dp_video_config->color_depth)) {
+                 &dp_video_config->color_depth)) {
          dev_err(dev, "failed to get color-depth\n");
          return ERR_PTR(-EINVAL);
      }

      if (of_property_read_u32(dp_node, "samsung,link-rate",
-                &dp_video_config->link_rate)) {
+                 &dp_video_config->link_rate)) {
          dev_err(dev, "failed to get link-rate\n");
          return ERR_PTR(-EINVAL);
      }

      if (of_property_read_u32(dp_node, "samsung,lane-count",
-                &dp_video_config->lane_count)) {
+                 &dp_video_config->lane_count)) {
          dev_err(dev, "failed to get lane-count\n");
          return ERR_PTR(-EINVAL);
      }
@@ -1206,7 +1203,7 @@ static int exynos_dp_dt_parse_panel(struct 
exynos_dp_device *dp)
      int ret;

      ret = of_get_videomode(dp->dev->of_node, &dp->priv.vm,
-            OF_USE_NATIVE_MODE);
+                   OF_USE_NATIVE_MODE);
      if (ret) {
          DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
          return ret;
@@ -1302,7 +1299,7 @@ static int exynos_dp_bind(struct device *dev, 
struct device *master, void *data)
      exynos_dp_init_dp(dp);

      ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler,
-            irq_flags, "exynos-dp", dp);
+                   irq_flags, "exynos-dp", dp);
      if (ret) {
          dev_err(&pdev->dev, "failed to request irq\n");
          return ret;
@@ -1315,7 +1312,7 @@ static int exynos_dp_bind(struct device *dev, 
struct device *master, void *data)
  }

  static void exynos_dp_unbind(struct device *dev, struct device *master,
-                void *data)
+                 void *data)
  {
      struct exynos_dp_device *dp = dev_get_drvdata(dev);

@@ -1334,7 +1331,7 @@ static int exynos_dp_probe(struct platform_device 
*pdev)
      struct exynos_dp_device *dp;

      dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
-                GFP_KERNEL);
+              GFP_KERNEL);
      if (!dp)
          return -ENOMEM;

@@ -1358,8 +1355,9 @@ static int exynos_dp_probe(struct platform_device 
*pdev)
              of_node_put(bridge_node);
              if (!dp->bridge)
                  return -EPROBE_DEFER;
-        } else
+        } else {
              return -EPROBE_DEFER;
+        }
      }

      return component_add(&pdev->dev, &exynos_dp_ops);
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h 
b/drivers/gpu/drm/exynos/exynos_dp_core.h
index a4e7996..c321ad5 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
@@ -180,8 +180,8 @@ void exynos_dp_config_interrupt(struct 
exynos_dp_device *dp);
  enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device 
*dp);
  void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool 
enable);
  void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
-                enum analog_power_block block,
-                bool enable);
+                     enum analog_power_block block,
+                     bool enable);
  void exynos_dp_init_analog_func(struct exynos_dp_device *dp);
  void exynos_dp_init_hpd(struct exynos_dp_device *dp);
  enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp);
@@ -192,50 +192,50 @@ int exynos_dp_get_plug_in_status(struct 
exynos_dp_device *dp);
  void exynos_dp_enable_sw_function(struct exynos_dp_device *dp);
  int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp);
  int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned char data);
+                 unsigned int reg_addr,
+                 unsigned char data);
  int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned char *data);
+                  unsigned int reg_addr,
+                  unsigned char *data);
  int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned int count,
-                unsigned char data[]);
+                  unsigned int reg_addr,
+                  unsigned int count,
+                  unsigned char data[]);
  int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned int count,
-                unsigned char data[]);
+                   unsigned int reg_addr,
+                   unsigned int count,
+                   unsigned char data[]);
  int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
                  unsigned int device_addr,
                  unsigned int reg_addr);
  int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
-                unsigned int device_addr,
-                unsigned int reg_addr,
-                unsigned int *data);
+                 unsigned int device_addr,
+                 unsigned int reg_addr,
+                 unsigned int *data);
  int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
-                unsigned int device_addr,
-                unsigned int reg_addr,
-                unsigned int count,
-                unsigned char edid[]);
+                  unsigned int device_addr,
+                  unsigned int reg_addr,
+                  unsigned int count,
+                  unsigned char edid[]);
  void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 
bwtype);
  void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 
*bwtype);
  void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count);
  void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count);
  void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool 
enable);
  void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
-                 enum pattern_set pattern);
+                    enum pattern_set pattern);
  void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 
level);
  void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 
level);
  void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 
level);
  void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 
level);
  void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
-                u32 training_lane);
+                       u32 training_lane);
  void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
-                u32 training_lane);
+                       u32 training_lane);
  void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
-                u32 training_lane);
+                       u32 training_lane);
  void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
-                u32 training_lane);
+                       u32 training_lane);
  u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp);
  u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp);
  u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp);
@@ -246,9 +246,8 @@ void exynos_dp_init_video(struct exynos_dp_device *dp);
  void exynos_dp_set_video_color_format(struct exynos_dp_device *dp);
  int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp);
  void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
-            enum clock_recovery_m_value_type type,
-            u32 m_value,
-            u32 n_value);
+                   enum clock_recovery_m_value_type type,
+                   u32 m_value, u32 n_value);
  void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 
type);
  void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool 
enable);
  void exynos_dp_start_video(struct exynos_dp_device *dp);
diff --git a/drivers/gpu/drm/exynos/exynos_dp_reg.c 
b/drivers/gpu/drm/exynos/exynos_dp_reg.c
index c1f87a2..9aa483d 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_reg.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_reg.c
@@ -202,8 +202,8 @@ void exynos_dp_set_pll_power_down(struct 
exynos_dp_device *dp, bool enable)
  }

  void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
-                enum analog_power_block block,
-                bool enable)
+                     enum analog_power_block block,
+                     bool enable)
  {
      u32 reg;

@@ -399,8 +399,8 @@ void exynos_dp_init_aux(struct exynos_dp_device *dp)
      exynos_dp_reset_aux(dp);

      /* Disable AUX transaction H/W retry */
-    reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0)|
-        AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+    reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
+          AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
      writel(reg, dp->reg_base + EXYNOS_DP_AUX_HW_RETRY_CTL);

      /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
@@ -483,8 +483,8 @@ int exynos_dp_start_aux_transaction(struct 
exynos_dp_device *dp)
  }

  int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned char data)
+                 unsigned int reg_addr,
+                 unsigned char data)
  {
      u32 reg;
      int i;
@@ -519,17 +519,16 @@ int exynos_dp_write_byte_to_dpcd(struct 
exynos_dp_device *dp,
          retval = exynos_dp_start_aux_transaction(dp);
          if (retval == 0)
              break;
-        else
-            dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
-                __func__);
+
+        dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
      }

      return retval;
  }

  int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned char *data)
+                  unsigned int reg_addr,
+                  unsigned char *data)
  {
      u32 reg;
      int i;
@@ -560,9 +559,8 @@ int exynos_dp_read_byte_from_dpcd(struct 
exynos_dp_device *dp,
          retval = exynos_dp_start_aux_transaction(dp);
          if (retval == 0)
              break;
-        else
-            dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
-                __func__);
+
+        dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
      }

      /* Read data buffer */
@@ -573,9 +571,9 @@ int exynos_dp_read_byte_from_dpcd(struct 
exynos_dp_device *dp,
  }

  int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned int count,
-                unsigned char data[])
+                  unsigned int reg_addr,
+                  unsigned int count,
+                  unsigned char data[])
  {
      u32 reg;
      unsigned int start_offset;
@@ -625,9 +623,9 @@ int exynos_dp_write_bytes_to_dpcd(struct 
exynos_dp_device *dp,
              retval = exynos_dp_start_aux_transaction(dp);
              if (retval == 0)
                  break;
-            else
-                dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
-                    __func__);
+
+            dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+                __func__);
          }

          start_offset += cur_data_count;
@@ -637,9 +635,9 @@ int exynos_dp_write_bytes_to_dpcd(struct 
exynos_dp_device *dp,
  }

  int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
-                unsigned int reg_addr,
-                unsigned int count,
-                unsigned char data[])
+                   unsigned int reg_addr,
+                   unsigned int count,
+                   unsigned char data[])
  {
      u32 reg;
      unsigned int start_offset;
@@ -683,9 +681,9 @@ int exynos_dp_read_bytes_from_dpcd(struct 
exynos_dp_device *dp,
              retval = exynos_dp_start_aux_transaction(dp);
              if (retval == 0)
                  break;
-            else
-                dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
-                    __func__);
+
+            dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+                __func__);
          }

          for (cur_data_idx = 0; cur_data_idx < cur_data_count;
@@ -736,9 +734,9 @@ int exynos_dp_select_i2c_device(struct 
exynos_dp_device *dp,
  }

  int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
-                unsigned int device_addr,
-                unsigned int reg_addr,
-                unsigned int *data)
+                 unsigned int device_addr,
+                 unsigned int reg_addr,
+                 unsigned int *data)
  {
      u32 reg;
      int i;
@@ -767,9 +765,8 @@ int exynos_dp_read_byte_from_i2c(struct 
exynos_dp_device *dp,
          retval = exynos_dp_start_aux_transaction(dp);
          if (retval == 0)
              break;
-        else
-            dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
-                __func__);
+
+        dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
      }

      /* Read data */
@@ -780,10 +777,10 @@ int exynos_dp_read_byte_from_i2c(struct 
exynos_dp_device *dp,
  }

  int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
-                unsigned int device_addr,
-                unsigned int reg_addr,
-                unsigned int count,
-                unsigned char edid[])
+                  unsigned int device_addr,
+                  unsigned int reg_addr,
+                  unsigned int count,
+                  unsigned char edid[])
  {
      u32 reg;
      unsigned int i, j;
@@ -807,8 +804,8 @@ int exynos_dp_read_bytes_from_i2c(struct 
exynos_dp_device *dp,
               * request without sending address
               */
              if (!defer)
-                retval = exynos_dp_select_i2c_device(dp,
-                        device_addr, reg_addr + i);
+                retval = exynos_dp_select_i2c_device(
+                        dp, device_addr, reg_addr + i);
              else
                  defer = 0;

@@ -828,15 +825,14 @@ int exynos_dp_read_bytes_from_i2c(struct 
exynos_dp_device *dp,
                  retval = exynos_dp_start_aux_transaction(dp);
                  if (retval == 0)
                      break;
-                else
-                    dev_dbg(dp->dev,
-                        "%s: Aux Transaction fail!\n",
-                        __func__);
+
+                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);
              if (reg == AUX_RX_COMM_AUX_DEFER ||
-                reg == AUX_RX_COMM_I2C_DEFER) {
+                reg == AUX_RX_COMM_I2C_DEFER) {
                  dev_err(dp->dev, "Defer: %d\n\n", reg);
                  defer = 1;
              }
@@ -901,7 +897,7 @@ void exynos_dp_enable_enhanced_mode(struct 
exynos_dp_device *dp, bool enable)
  }

  void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
-                 enum pattern_set pattern)
+                    enum pattern_set pattern)
  {
      u32 reg;

@@ -974,7 +970,7 @@ void exynos_dp_set_lane3_pre_emphasis(struct 
exynos_dp_device *dp, u32 level)
  }

  void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
-                    u32 training_lane)
+                       u32 training_lane)
  {
      u32 reg;

@@ -983,7 +979,7 @@ void exynos_dp_set_lane0_link_training(struct 
exynos_dp_device *dp,
  }

  void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
-                    u32 training_lane)
+                       u32 training_lane)
  {
      u32 reg;

@@ -992,7 +988,7 @@ void exynos_dp_set_lane1_link_training(struct 
exynos_dp_device *dp,
  }

  void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
-                    u32 training_lane)
+                       u32 training_lane)
  {
      u32 reg;

@@ -1001,7 +997,7 @@ void exynos_dp_set_lane2_link_training(struct 
exynos_dp_device *dp,
  }

  void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
-                    u32 training_lane)
+                       u32 training_lane)
  {
      u32 reg;

@@ -1125,9 +1121,9 @@ int 
exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp)
  }

  void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
-        enum clock_recovery_m_value_type type,
-        u32 m_value,
-        u32 n_value)
+                   enum clock_recovery_m_value_type type,
+                   u32 m_value,
+                   u32 n_value)
  {
      u32 reg;

@@ -1221,7 +1217,7 @@ void exynos_dp_config_video_slave_mode(struct 
exynos_dp_device *dp)
      u32 reg;

      reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_1);
-    reg &= ~(MASTER_VID_FUNC_EN_N|SLAVE_VID_FUNC_EN_N);
+    reg &= ~(MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N);
      reg |= MASTER_VID_FUNC_EN_N;
      writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);

-- 
2.1.2