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SubjectRe: [PATCH v4 01/16] drm: exynos/dp: fix code style
Hi Krzysztof,

在 09/03/2015 08:21 AM, Krzysztof Kozlowski 写道:
> On 01.09.2015 14:46, Yakir Yang wrote:
>> After run "checkpatch.pl -f --subjective" command, I see there
>> are lots of alignment problem in exynos_dp driver, so let just
>> fix them.
> Hi,
>
> Warnings from checkpatch are not a reason for a commit. Reason for a
> commit could be for example an unreadable code, violation of
> coding-style leading to decrease in code maintainability or just
> improving the code readability so it will be easier to review and
> maintain it.
>
> You do not make commits because some tool tells you that. We do not
> listen to machines :) ... If that would be the case, the commit could be
> made automatically, without human interaction. Such automated commit
> could be even easily tested by the machine by comparing object files.
>
> Especially that you enabled "subjective" rule. This is not a valid
> motivation for a commit.
>
> Please rephrase this to sensible reason and convince that change is
> worth the effort.

Oh, nice, thanks for your remind. I would rephrase the commit.

>> - Take Romain suggest, rebase on linux-next branch
> That comment seems unrelated to the commit. Please remove it.

Done,

>
>> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
>> ---
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2:
>> - Take Joe Preches advise, improved commit message more readable, and
>> avoid using some uncommon style like bellow:
>> - retval = exynos_dp_read_bytes_from_i2c(...
>> ...)
>> + retval =
>> + exynos_dp_read_bytes_from_i2c(......);
>>
>> drivers/gpu/drm/exynos/exynos_dp_core.c | 226 ++++++++++++++++----------------
>> drivers/gpu/drm/exynos/exynos_dp_core.h | 54 ++++----
>> drivers/gpu/drm/exynos/exynos_dp_reg.c | 106 +++++++--------
>> 3 files changed, 188 insertions(+), 198 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
>> index d66ade0..266f7f7 100644
>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.c
>> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
>> @@ -115,8 +115,8 @@ 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;
>>
>> @@ -124,10 +124,11 @@ 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;
>> @@ -139,11 +140,11 @@ 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;
>> @@ -155,24 +156,22 @@ 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);
> To me, missing argument after opening parenthesis, looks worse. I would
> prefer:
>
> exynos_dp_write_byte_to_dpcd(dp,
>
> Why you moved the 'dp' argument to new line?

Hmm... Just like style tool indicate, no more warning after
that change.

For now, I would like to follow the original style, just improved
some obvious style problem. :-)

>
>> }
>> } 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]);
> ditto

Done

>
>> if (retval != 0) {
>> dev_err(dp->dev, "EDID Read failed!\n");
>> return -EIO;
>> @@ -183,16 +182,15 @@ 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);
> ditto

Done

>
>> }
>> }
>>
>> @@ -207,8 +205,7 @@ 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;
>>
>> @@ -223,7 +220,7 @@ 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;
>>
>> @@ -231,11 +228,11 @@ static void exynos_dp_enable_rx_to_enhanced_mode(struct exynos_dp_device *dp,
>>
>> if (enable)
>> exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
>> - DP_LANE_COUNT_ENHANCED_FRAME_EN |
>> - DPCD_LANE_COUNT_SET(data));
>> + 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));
>> + DPCD_LANE_COUNT_SET(data));
>> }
>>
>> static int exynos_dp_is_enhanced_mode_available(struct exynos_dp_device *dp)
>> @@ -262,13 +259,12 @@ 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:
>> @@ -308,15 +304,14 @@ 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;
>> @@ -334,9 +329,9 @@ 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;
>>
>> @@ -345,7 +340,7 @@ 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;
>> }
>> @@ -353,7 +348,7 @@ 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;
>> }
>> @@ -372,7 +367,7 @@ 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;
>> @@ -391,10 +386,10 @@ 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;
>> }
>> @@ -404,13 +399,13 @@ 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:
>> @@ -430,9 +425,8 @@ static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
>> }
>> }
>>
>> -static unsigned int exynos_dp_get_lane_link_training(
>> - struct exynos_dp_device *dp,
>> - int lane)
>> +static unsigned int
>> +exynos_dp_get_lane_link_training(struct exynos_dp_device *dp, int lane)
>> {
>> u32 reg;
>>
>> @@ -466,7 +460,7 @@ 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;
>> @@ -499,13 +493,13 @@ 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;
>>
>> @@ -513,8 +507,8 @@ 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);
> ditto

Done

>
>> if (retval)
>> @@ -552,11 +546,11 @@ 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);
> ditto

Done

>
>> if (retval)
>> return retval;
>> @@ -574,8 +568,8 @@ 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;
>>
>> @@ -584,13 +578,13 @@ 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;
>>
>> @@ -629,17 +623,18 @@ 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);
> ditto

Done

>
>>
>> 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;
>>
>> @@ -652,7 +647,7 @@ 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;
>>
>> @@ -665,8 +660,8 @@ 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
>> @@ -679,7 +674,7 @@ 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;
>> @@ -739,8 +734,7 @@ 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;
>> @@ -828,21 +822,19 @@ 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,
>> - (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));
> ditto

Done

>
>> } 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));
> ditto

Done

>
>> }
>> }
>>
>> @@ -913,7 +905,7 @@ static void exynos_dp_commit(struct drm_encoder *encoder)
>> }
>>
>> 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;
>> @@ -941,8 +933,8 @@ static void exynos_dp_commit(struct drm_encoder *encoder)
>> exynos_dp_start_video(dp);
>> }
>>
>> -static enum drm_connector_status exynos_dp_detect(
>> - struct drm_connector *connector, bool force)
>> +static enum drm_connector_status
>> +exynos_dp_detect(struct drm_connector *connector, bool force)
>> {
>> return connector_status_connected;
>> }
>> @@ -990,8 +982,8 @@ static int exynos_dp_get_modes(struct drm_connector *connector)
>> return 1;
>> }
>>
>> -static struct drm_encoder *exynos_dp_best_encoder(
>> - struct drm_connector *connector)
>> +static struct drm_encoder *
>> +exynos_dp_best_encoder(struct drm_connector *connector)
>> {
>> struct exynos_dp_device *dp = ctx_from_connector(connector);
>>
>> @@ -1005,7 +997,7 @@ 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;
>>
>> @@ -1036,7 +1028,8 @@ static int exynos_dp_create_connector(struct drm_encoder *encoder)
>> 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;
>> @@ -1139,8 +1132,8 @@ 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);
>>
>> @@ -1154,37 +1147,37 @@ 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);
>> }
>> @@ -1197,7 +1190,7 @@ 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;
>> @@ -1294,7 +1287,7 @@ 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;
>> @@ -1328,7 +1321,7 @@ 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);
>>
>> @@ -1347,7 +1340,7 @@ 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;
>>
>> @@ -1369,8 +1362,9 @@ 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 e413b6f..71f2b86 100644
>> --- a/drivers/gpu/drm/exynos/exynos_dp_core.h
>> +++ b/drivers/gpu/drm/exynos/exynos_dp_core.h
>> @@ -179,8 +179,8 @@ 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);
>> @@ -191,50 +191,50 @@ 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);
>> @@ -245,9 +245,9 @@ 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..5aff19a 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);
> ditto

Done

Thanks,
- Yakir

>
> Best regards,
> Krzysztof
>
>> else
>> defer = 0;
>>
>> @@ -819,24 +816,23 @@ int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
>> * If Bit 3 is 0, I2C transaction.
>> */
>> reg = AUX_LENGTH(16) |
>> - AUX_TX_COMM_I2C_TRANSACTION |
>> - AUX_TX_COMM_READ;
>> + AUX_TX_COMM_I2C_TRANSACTION |
>> + AUX_TX_COMM_READ;
>> writel(reg, dp->reg_base +
>> - EXYNOS_DP_AUX_CH_CTL_1);
>> + EXYNOS_DP_AUX_CH_CTL_1);
>>
>> /* Start AUX transaction */
>> 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);
>>
>>
>
>
>




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