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drm: bridge: analogix/dp: fix some obvious code style

Browse source 
Fix some obvious alignment problems, like alignment and line
over 80 characters problems, make this easy to be maintained
later.

Acked-by: Jingoo Han <jingoohan1@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
This commit is contained in:
Yakir Yang 2016-03-29 09:57:19 +08:00
parent 092f899420
commit bcbb7033ac
4 changed files with 165 additions and 164 deletions
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129
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
View file

@ -64,7 +64,7 @@ static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
while (analogix_dp_get_plug_in_status(dp) != 0) {
timeout_loop++;
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
if (timeout_loop > DP_TIMEOUT_LOOP_COUNT) {
dev_err(dp->dev, "failed to get hpd plug status\n");
return -ETIMEDOUT;
}
@ -101,8 +101,8 @@ static int analogix_dp_read_edid(struct analogix_dp_device *dp)
/* Read Extension Flag, Number of 128-byte EDID extension blocks */
retval = analogix_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
EDID_EXTENSION_FLAG,
&extend_block);
EDID_EXTENSION_FLAG,
&extend_block);
if (retval)
return retval;
@ -110,7 +110,8 @@ static int analogix_dp_read_edid(struct analogix_dp_device *dp)
dev_dbg(dp->dev, "EDID data includes a single extension!\n");
/* Read EDID data */
retval = analogix_dp_read_bytes_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
retval = analogix_dp_read_bytes_from_i2c(dp,
I2C_EDID_DEVICE_ADDR,
EDID_HEADER_PATTERN,
EDID_BLOCK_LENGTH,
&edid[EDID_HEADER_PATTERN]);
@ -141,7 +142,7 @@ static int analogix_dp_read_edid(struct analogix_dp_device *dp)
}
analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
&test_vector);
&test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
analogix_dp_write_byte_to_dpcd(dp,
DP_TEST_EDID_CHECKSUM,
@ -155,10 +156,8 @@ static int analogix_dp_read_edid(struct analogix_dp_device *dp)
/* Read EDID data */
retval = analogix_dp_read_bytes_from_i2c(dp,
I2C_EDID_DEVICE_ADDR,
EDID_HEADER_PATTERN,
EDID_BLOCK_LENGTH,
&edid[EDID_HEADER_PATTERN]);
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;
@ -169,16 +168,13 @@ static int analogix_dp_read_edid(struct analogix_dp_device *dp)
return -EIO;
}
analogix_dp_read_byte_from_dpcd(dp,
DP_TEST_REQUEST,
&test_vector);
analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
&test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
analogix_dp_write_byte_to_dpcd(dp,
DP_TEST_EDID_CHECKSUM,
edid[EDID_CHECKSUM]);
DP_TEST_EDID_CHECKSUM, edid[EDID_CHECKSUM]);
analogix_dp_write_byte_to_dpcd(dp,
DP_TEST_RESPONSE,
DP_TEST_EDID_CHECKSUM_WRITE);
DP_TEST_RESPONSE, DP_TEST_EDID_CHECKSUM_WRITE);
}
}
@ -193,8 +189,7 @@ static int analogix_dp_handle_edid(struct analogix_dp_device *dp)
int retval;
/* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
retval = analogix_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV,
12, buf);
retval = analogix_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
if (retval)
return retval;
@ -208,8 +203,9 @@ static int analogix_dp_handle_edid(struct analogix_dp_device *dp)
return retval;
}
static void analogix_dp_enable_rx_to_enhanced_mode(struct analogix_dp_device *dp,
bool enable)
static void
analogix_dp_enable_rx_to_enhanced_mode(struct analogix_dp_device *dp,
bool enable)
{
u8 data;
@ -217,11 +213,11 @@ static void analogix_dp_enable_rx_to_enhanced_mode(struct analogix_dp_device *dp
if (enable)
analogix_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
analogix_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
DPCD_LANE_COUNT_SET(data));
DPCD_LANE_COUNT_SET(data));
}
static int analogix_dp_is_enhanced_mode_available(struct analogix_dp_device *dp)
@ -248,13 +244,13 @@ static void analogix_dp_training_pattern_dis(struct analogix_dp_device *dp)
{
analogix_dp_set_training_pattern(dp, DP_NONE);
analogix_dp_write_byte_to_dpcd(dp,
DP_TRAINING_PATTERN_SET,
DP_TRAINING_PATTERN_DISABLE);
analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
DP_TRAINING_PATTERN_DISABLE);
}
static void analogix_dp_set_lane_lane_pre_emphasis(struct analogix_dp_device *dp,
int pre_emphasis, int lane)
static void
analogix_dp_set_lane_lane_pre_emphasis(struct analogix_dp_device *dp,
int pre_emphasis, int lane)
{
switch (lane) {
case 0:
@ -294,8 +290,7 @@ static int analogix_dp_link_start(struct analogix_dp_device *dp)
/* Setup RX configuration */
buf[0] = dp->link_train.link_rate;
buf[1] = dp->link_train.lane_count;
retval = analogix_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET,
2, buf);
retval = analogix_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
if (retval)
return retval;
@ -331,7 +326,7 @@ static int analogix_dp_link_start(struct analogix_dp_device *dp)
DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
lane_count, buf);
lane_count, buf);
return retval;
}
@ -339,7 +334,7 @@ static int analogix_dp_link_start(struct analogix_dp_device *dp)
static unsigned char analogix_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;
}
@ -358,7 +353,7 @@ static int analogix_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
}
static int analogix_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
int lane_count)
int lane_count)
{
int lane;
u8 lane_status;
@ -376,11 +371,11 @@ static int analogix_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
return 0;
}
static unsigned char analogix_dp_get_adjust_request_voltage(u8 adjust_request[2],
int lane)
static unsigned char
analogix_dp_get_adjust_request_voltage(u8 adjust_request[2], 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;
}
@ -390,13 +385,13 @@ static unsigned char analogix_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 analogix_dp_set_lane_link_training(struct analogix_dp_device *dp,
u8 training_lane_set, int lane)
u8 training_lane_set, int lane)
{
switch (lane) {
case 0:
@ -416,9 +411,9 @@ static void analogix_dp_set_lane_link_training(struct analogix_dp_device *dp,
}
}
static unsigned int analogix_dp_get_lane_link_training(
struct analogix_dp_device *dp,
int lane)
static unsigned int
analogix_dp_get_lane_link_training(struct analogix_dp_device *dp,
int lane)
{
u32 reg;
@ -452,7 +447,7 @@ static void analogix_dp_reduce_link_rate(struct analogix_dp_device *dp)
}
static void analogix_dp_get_adjust_training_lane(struct analogix_dp_device *dp,
u8 adjust_request[2])
u8 adjust_request[2])
{
int lane, lane_count;
u8 voltage_swing, pre_emphasis, training_lane;
@ -625,7 +620,7 @@ static int analogix_dp_process_equalizer_training(struct analogix_dp_device *dp)
}
static void analogix_dp_get_max_rx_bandwidth(struct analogix_dp_device *dp,
u8 *bandwidth)
u8 *bandwidth)
{
u8 data;
@ -638,7 +633,7 @@ static void analogix_dp_get_max_rx_bandwidth(struct analogix_dp_device *dp,
}
static void analogix_dp_get_max_rx_lane_count(struct analogix_dp_device *dp,
u8 *lane_count)
u8 *lane_count)
{
u8 data;
@ -651,8 +646,8 @@ static void analogix_dp_get_max_rx_lane_count(struct analogix_dp_device *dp,
}
static void analogix_dp_init_training(struct analogix_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
@ -665,7 +660,7 @@ static void analogix_dp_init_training(struct analogix_dp_device *dp,
analogix_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;
@ -725,8 +720,7 @@ static int analogix_dp_sw_link_training(struct analogix_dp_device *dp)
}
static int analogix_dp_set_link_train(struct analogix_dp_device *dp,
u32 count,
u32 bwtype)
u32 count, u32 bwtype)
{
int i;
int retval;
@ -762,7 +756,7 @@ static int analogix_dp_config_video(struct analogix_dp_device *dp)
timeout_loop++;
if (analogix_dp_is_slave_video_stream_clock_on(dp) == 0)
break;
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
if (timeout_loop > DP_TIMEOUT_LOOP_COUNT) {
dev_err(dp->dev, "Timeout of video streamclk ok\n");
return -ETIMEDOUT;
}
@ -793,7 +787,7 @@ static int analogix_dp_config_video(struct analogix_dp_device *dp)
} else if (done_count) {
done_count = 0;
}
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
if (timeout_loop > DP_TIMEOUT_LOOP_COUNT) {
dev_err(dp->dev, "Timeout of video streamclk ok\n");
return -ETIMEDOUT;
}
@ -807,25 +801,24 @@ static int analogix_dp_config_video(struct analogix_dp_device *dp)
return retval;
}
static void analogix_dp_enable_scramble(struct analogix_dp_device *dp, bool enable)
static void analogix_dp_enable_scramble(struct analogix_dp_device *dp,
bool enable)
{
u8 data;
if (enable) {
analogix_dp_enable_scrambling(dp);
analogix_dp_read_byte_from_dpcd(dp,
DP_TRAINING_PATTERN_SET,
&data);
analogix_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
&data);
analogix_dp_write_byte_to_dpcd(dp,
DP_TRAINING_PATTERN_SET,
(u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
} else {
analogix_dp_disable_scrambling(dp);
analogix_dp_read_byte_from_dpcd(dp,
DP_TRAINING_PATTERN_SET,
&data);
analogix_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
&data);
analogix_dp_write_byte_to_dpcd(dp,
DP_TRAINING_PATTERN_SET,
(u8)(data | DP_LINK_SCRAMBLING_DISABLE));
@ -898,7 +891,7 @@ static void analogix_dp_commit(struct analogix_dp_device *dp)
}
ret = analogix_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;
@ -1130,8 +1123,8 @@ static struct video_info *analogix_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);
@ -1145,37 +1138,37 @@ static struct video_info *analogix_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);
}
@ -1284,7 +1277,7 @@ int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
pm_runtime_enable(dev);
ret = devm_request_irq(&pdev->dev, dp->irq, analogix_dp_irq_handler,
irq_flags, "analogix-dp", dp);
irq_flags, "analogix-dp", dp);
if (ret) {
dev_err(&pdev->dev, "failed to request irq\n");
goto err_disable_pm_runtime;

72
drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
View file

@ -187,50 +187,55 @@ int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp);
void analogix_dp_enable_sw_function(struct analogix_dp_device *dp);
int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp);
int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
unsigned int reg_addr,
unsigned char data);
unsigned int reg_addr,
unsigned char data);
int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
unsigned int reg_addr,
unsigned char *data);
unsigned int reg_addr,
unsigned char *data);
int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
unsigned int reg_addr,
unsigned int count,
unsigned char data[]);
unsigned int reg_addr,
unsigned int count,
unsigned char data[]);
int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
unsigned int reg_addr,
unsigned int count,
unsigned char data[]);
unsigned int reg_addr,
unsigned int count,
unsigned char data[]);
int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
unsigned int device_addr,
unsigned int reg_addr);
unsigned int device_addr,
unsigned int reg_addr);
int analogix_dp_read_byte_from_i2c(struct analogix_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 analogix_dp_read_bytes_from_i2c(struct analogix_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 analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype);
void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype);
void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count);
void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count);
void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp, bool enable);
void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
bool enable);
void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
enum pattern_set pattern);
void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp, u32 level);
void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp, u32 level);
void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp, u32 level);
void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp, u32 level);
enum pattern_set pattern);
void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
u32 level);
void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
u32 level);
void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
u32 level);
void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
u32 level);
void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
u32 training_lane);
u32 training_lane);
void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
u32 training_lane);
u32 training_lane);
void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
u32 training_lane);
u32 training_lane);
void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
u32 training_lane);
u32 training_lane);
u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp);
u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp);
u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp);
@ -241,11 +246,12 @@ void analogix_dp_init_video(struct analogix_dp_device *dp);
void analogix_dp_set_video_color_format(struct analogix_dp_device *dp);
int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp);
void analogix_dp_set_video_cr_mn(struct analogix_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 analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type);
void analogix_dp_enable_video_master(struct analogix_dp_device *dp, bool enable);
void analogix_dp_enable_video_master(struct analogix_dp_device *dp,
bool enable);
void analogix_dp_start_video(struct analogix_dp_device *dp);
int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp);
void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp);

124
drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
View file

@ -54,10 +54,10 @@ void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable)
if (enable)
reg = LANE3_MAP_LOGIC_LANE_0 | LANE2_MAP_LOGIC_LANE_1 |
LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
else
reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
writel(reg, dp->reg_base + ANALOGIX_DP_LANE_MAP);
}
@ -202,8 +202,8 @@ void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable)
}
void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
enum analog_power_block block,
bool enable)
enum analog_power_block block,
bool enable)
{
u32 reg;
@ -399,8 +399,8 @@ void analogix_dp_init_aux(struct analogix_dp_device *dp)
analogix_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 + ANALOGIX_DP_AUX_HW_RETRY_CTL);
/* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
@ -483,8 +483,8 @@ int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp)
}
int analogix_dp_write_byte_to_dpcd(struct analogix_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 analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
retval = analogix_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 analogix_dp_read_byte_from_dpcd(struct analogix_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 analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
retval = analogix_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 analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
}
int analogix_dp_write_bytes_to_dpcd(struct analogix_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;
@ -608,8 +606,9 @@ int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
for (cur_data_idx = 0; cur_data_idx < cur_data_count;
cur_data_idx++) {
reg = data[start_offset + cur_data_idx];
writel(reg, dp->reg_base + ANALOGIX_DP_BUF_DATA_0
+ 4 * cur_data_idx);
writel(reg, dp->reg_base +
ANALOGIX_DP_BUF_DATA_0 +
4 * cur_data_idx);
}
/*
@ -625,9 +624,9 @@ int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
retval = analogix_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 +636,9 @@ int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
}
int analogix_dp_read_bytes_from_dpcd(struct analogix_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 +682,9 @@ int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
retval = analogix_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;
@ -703,8 +702,8 @@ int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
}
int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
unsigned int device_addr,
unsigned int reg_addr)
unsigned int device_addr,
unsigned int reg_addr)
{
u32 reg;
int retval;
@ -736,9 +735,9 @@ int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
}
int analogix_dp_read_byte_from_i2c(struct analogix_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;
@ -750,7 +749,8 @@ int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
/* Select EDID device */
retval = analogix_dp_select_i2c_device(dp, device_addr, reg_addr);
retval = analogix_dp_select_i2c_device(dp, device_addr,
reg_addr);
if (retval != 0)
continue;
@ -767,9 +767,8 @@ int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
retval = analogix_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 +779,10 @@ int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
}
int analogix_dp_read_bytes_from_i2c(struct analogix_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;
@ -828,15 +827,14 @@ int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp,
retval = analogix_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 + ANALOGIX_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;
}
@ -885,7 +883,8 @@ void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count)
*count = reg;
}
void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp, bool enable)
void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
bool enable)
{
u32 reg;
@ -901,7 +900,7 @@ void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp, bool enable
}
void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
enum pattern_set pattern)
enum pattern_set pattern)
{
u32 reg;
@ -933,7 +932,8 @@ void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
}
}
void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp, u32 level)
void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
u32 level)
{
u32 reg;
@ -943,7 +943,8 @@ void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp, u32 level
writel(reg, dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
}
void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp, u32 level)
void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
u32 level)
{
u32 reg;
@ -953,7 +954,8 @@ void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp, u32 level
writel(reg, dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
}
void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp, u32 level)
void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
u32 level)
{
u32 reg;
@ -963,7 +965,8 @@ void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp, u32 level
writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
}
void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp, u32 level)
void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
u32 level)
{
u32 reg;
@ -974,7 +977,7 @@ void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp, u32 level
}
void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
u32 training_lane)
u32 training_lane)
{
u32 reg;
@ -983,7 +986,7 @@ void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
}
void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
u32 training_lane)
u32 training_lane)
{
u32 reg;
@ -1001,7 +1004,7 @@ void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
}
void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
u32 training_lane)
u32 training_lane)
{
u32 reg;
@ -1125,9 +1128,8 @@ int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp)
}
void analogix_dp_set_video_cr_mn(struct analogix_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 +1223,7 @@ void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp)
u32 reg;
reg = readl(dp->reg_base + ANALOGIX_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 + ANALOGIX_DP_FUNC_EN_1);

4
drivers/gpu/drm/exynos/exynos_dp.c
View file

@ -204,7 +204,7 @@ 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)
{
return analogix_dp_unbind(dev, master, data);
}
@ -221,7 +221,7 @@ 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;