Release 4.11 drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
/*
* Analog Devices ADV7511 HDMI transmitter driver
*
* Copyright 2012 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
#include <linux/device.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_edid.h>
#include "adv7511.h"
/* ADI recommended values for proper operation. */
static const struct reg_sequence adv7511_fixed_registers[] = {
{ 0x98, 0x03 },
{ 0x9a, 0xe0 },
{ 0x9c, 0x30 },
{ 0x9d, 0x61 },
{ 0xa2, 0xa4 },
{ 0xa3, 0xa4 },
{ 0xe0, 0xd0 },
{ 0xf9, 0x00 },
{ 0x55, 0x02 },
};
/* -----------------------------------------------------------------------------
* Register access
*/
static const uint8_t adv7511_register_defaults[] = {
0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */
0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13,
0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */
0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84,
0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e, /* 20 */
0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 30 */
0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0,
0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00, /* 40 */
0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00, /* 50 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 80 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 90 */
0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00,
0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00, /* a0 */
0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b0 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c0 */
0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04,
0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, /* d0 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01,
0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, /* e0 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00, /* f0 */
0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
static bool adv7511_register_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case ADV7511_REG_CHIP_REVISION:
case ADV7511_REG_SPDIF_FREQ:
case ADV7511_REG_CTS_AUTOMATIC1:
case ADV7511_REG_CTS_AUTOMATIC2:
case ADV7511_REG_VIC_DETECTED:
case ADV7511_REG_VIC_SEND:
case ADV7511_REG_AUX_VIC_DETECTED:
case ADV7511_REG_STATUS:
case ADV7511_REG_GC(1):
case ADV7511_REG_INT(0):
case ADV7511_REG_INT(1):
case ADV7511_REG_PLL_STATUS:
case ADV7511_REG_AN(0):
case ADV7511_REG_AN(1):
case ADV7511_REG_AN(2):
case ADV7511_REG_AN(3):
case ADV7511_REG_AN(4):
case ADV7511_REG_AN(5):
case ADV7511_REG_AN(6):
case ADV7511_REG_AN(7):
case ADV7511_REG_HDCP_STATUS:
case ADV7511_REG_BCAPS:
case ADV7511_REG_BKSV(0):
case ADV7511_REG_BKSV(1):
case ADV7511_REG_BKSV(2):
case ADV7511_REG_BKSV(3):
case ADV7511_REG_BKSV(4):
case ADV7511_REG_DDC_STATUS:
case ADV7511_REG_EDID_READ_CTRL:
case ADV7511_REG_BSTATUS(0):
case ADV7511_REG_BSTATUS(1):
case ADV7511_REG_CHIP_ID_HIGH:
case ADV7511_REG_CHIP_ID_LOW:
return true;
}
return false;
}
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static const struct regmap_config adv7511_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
.cache_type = REGCACHE_RBTREE,
.reg_defaults_raw = adv7511_register_defaults,
.num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
.volatile_reg = adv7511_register_volatile,
};
/* -----------------------------------------------------------------------------
* Hardware configuration
*/
static void adv7511_set_colormap(struct adv7511 *adv7511, bool enable,
const uint16_t *coeff,
unsigned int scaling_factor)
{
unsigned int i;
regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
ADV7511_CSC_UPDATE_MODE, ADV7511_CSC_UPDATE_MODE);
if (enable) {
for (i = 0; i < 12; ++i) {
regmap_update_bits(adv7511->regmap,
ADV7511_REG_CSC_UPPER(i),
0x1f, coeff[i] >> 8);
regmap_write(adv7511->regmap,
ADV7511_REG_CSC_LOWER(i),
coeff[i] & 0xff);
}
}
if (enable)
regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
0xe0, 0x80 | (scaling_factor << 5));
else
regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
0x80, 0x00);
regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
ADV7511_CSC_UPDATE_MODE, 0);
}
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static int adv7511_packet_enable(struct adv7511 *adv7511, unsigned int packet)
{
if (packet & 0xff)
regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
packet, 0xff);
if (packet & 0xff00) {
packet >>= 8;
regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
packet, 0xff);
}
return 0;
}
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static int adv7511_packet_disable(struct adv7511 *adv7511, unsigned int packet)
{
if (packet & 0xff)
regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
packet, 0x00);
if (packet & 0xff00) {
packet >>= 8;
regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
packet, 0x00);
}
return 0;
}
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/* Coefficients for adv7511 color space conversion */
static const uint16_t adv7511_csc_ycbcr_to_rgb[] = {
0x0734, 0x04ad, 0x0000, 0x1c1b,
0x1ddc, 0x04ad, 0x1f24, 0x0135,
0x0000, 0x04ad, 0x087c, 0x1b77,
};
static void adv7511_set_config_csc(struct adv7511 *adv7511,
struct drm_connector *connector,
bool rgb)
{
struct adv7511_video_config config;
bool output_format_422, output_format_ycbcr;
unsigned int mode;
uint8_t infoframe[17];
if (adv7511->edid)
config.hdmi_mode = drm_detect_hdmi_monitor(adv7511->edid);
else
config.hdmi_mode = false;
hdmi_avi_infoframe_init(&config.avi_infoframe);
config.avi_infoframe.scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
if (rgb) {
config.csc_enable = false;
config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
} else {
config.csc_scaling_factor = ADV7511_CSC_SCALING_4;
config.csc_coefficents = adv7511_csc_ycbcr_to_rgb;
if ((connector->display_info.color_formats &
DRM_COLOR_FORMAT_YCRCB422) &&
config.hdmi_mode) {
config.csc_enable = false;
config.avi_infoframe.colorspace =
HDMI_COLORSPACE_YUV422;
} else {
config.csc_enable = true;
config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
}
}
if (config.hdmi_mode) {
mode = ADV7511_HDMI_CFG_MODE_HDMI;
switch (config.avi_infoframe.colorspace) {
case HDMI_COLORSPACE_YUV444:
output_format_422 = false;
output_format_ycbcr = true;
break;
case HDMI_COLORSPACE_YUV422:
output_format_422 = true;
output_format_ycbcr = true;
break;
default:
output_format_422 = false;
output_format_ycbcr = false;
break;
}
} else {
mode = ADV7511_HDMI_CFG_MODE_DVI;
output_format_422 = false;
output_format_ycbcr = false;
}
adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
adv7511_set_colormap(adv7511, config.csc_enable,
config.csc_coefficents,
config.csc_scaling_factor);
regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x81,
(output_format_422 << 7) | output_format_ycbcr);
regmap_update_bits(adv7511->regmap, ADV7511_REG_HDCP_HDMI_CFG,
ADV7511_HDMI_CFG_MODE_MASK, mode);
hdmi_avi_infoframe_pack(&config.avi_infoframe, infoframe,
sizeof(infoframe));
/* The AVI infoframe id is not configurable */
regmap_bulk_write(adv7511->regmap, ADV7511_REG_AVI_INFOFRAME_VERSION,
infoframe + 1, sizeof(infoframe) - 1);
adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
}
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static void adv7511_set_link_config(struct adv7511 *adv7511,
const struct adv7511_link_config *config)
{
/*
* The input style values documented in the datasheet don't match the
* hardware register field values :-(
*/
static const unsigned int input_styles[4] = { 0, 2, 1, 3 };
unsigned int clock_delay;
unsigned int color_depth;
unsigned int input_id;
clock_delay = (config->clock_delay + 1200) / 400;
color_depth = config->input_color_depth == 8 ? 3
: (config->input_color_depth == 10 ? 1 : 2);
/* TODO Support input ID 6 */
if (config->input_colorspace != HDMI_COLORSPACE_YUV422)
input_id = config->input_clock == ADV7511_INPUT_CLOCK_DDR
? 5 : 0;
else if (config->input_clock == ADV7511_INPUT_CLOCK_DDR)
input_id = config->embedded_sync ? 8 : 7;
else if (config->input_clock == ADV7511_INPUT_CLOCK_2X)
input_id = config->embedded_sync ? 4 : 3;
else
input_id = config->embedded_sync ? 2 : 1;
regmap_update_bits(adv7511->regmap, ADV7511_REG_I2C_FREQ_ID_CFG, 0xf,
input_id);
regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x7e,
(color_depth << 4) |
(input_styles[config->input_style] << 2));
regmap_write(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG2,
config->input_justification << 3);
regmap_write(adv7511->regmap, ADV7511_REG_TIMING_GEN_SEQ,
config->sync_pulse << 2);
regmap_write(adv7511->regmap, 0xba, clock_delay << 5);
adv7511->embedded_sync = config->embedded_sync;
adv7511->hsync_polarity = config->hsync_polarity;
adv7511->vsync_polarity = config->vsync_polarity;
adv7511->rgb = config->input_colorspace == HDMI_COLORSPACE_RGB;
}
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static void __adv7511_power_on(struct adv7511 *adv7511)
{
adv7511->current_edid_segment = -1;
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
ADV7511_POWER_POWER_DOWN, 0);
if (adv7511->i2c_main->irq) {
/*
* Documentation says the INT_ENABLE registers are reset in
* POWER_DOWN mode. My 7511w preserved the bits, however.
* Still, let's be safe and stick to the documentation.
*/
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD);
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
ADV7511_INT1_DDC_ERROR);
}
/*
* Per spec it is allowed to pulse the HPD signal to indicate that the
* EDID information has changed. Some monitors do this when they wakeup
* from standby or are enabled. When the HPD goes low the adv7511 is
* reset and the outputs are disabled which might cause the monitor to
* go to standby again. To avoid this we ignore the HPD pin for the
* first few seconds after enabling the output.
*/
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7511_REG_POWER2_HPD_SRC_MASK,
ADV7511_REG_POWER2_HPD_SRC_NONE);
}
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| Total | 86 | 100.00% | 5 | 100.00% |
static void adv7511_power_on(struct adv7511 *adv7511)
{
__adv7511_power_on(adv7511);
/*
* Most of the registers are reset during power down or when HPD is low.
*/
regcache_sync(adv7511->regmap);
if (adv7511->type == ADV7533)
adv7533_dsi_power_on(adv7511);
adv7511->powered = true;
}
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static void __adv7511_power_off(struct adv7511 *adv7511)
{
/* TODO: setup additional power down modes */
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
ADV7511_POWER_POWER_DOWN,
ADV7511_POWER_POWER_DOWN);
regcache_mark_dirty(adv7511->regmap);
}
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static void adv7511_power_off(struct adv7511 *adv7511)
{
__adv7511_power_off(adv7511);
if (adv7511->type == ADV7533)
adv7533_dsi_power_off(adv7511);
adv7511->powered = false;
}
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| Total | 35 | 100.00% | 3 | 100.00% |
/* -----------------------------------------------------------------------------
* Interrupt and hotplug detection
*/
static bool adv7511_hpd(struct adv7511 *adv7511)
{
unsigned int irq0;
int ret;
ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
if (ret < 0)
return false;
if (irq0 & ADV7511_INT0_HPD) {
regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
ADV7511_INT0_HPD);
return true;
}
return false;
}
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static void adv7511_hpd_work(struct work_struct *work)
{
struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
enum drm_connector_status status;
unsigned int val;
int ret;
ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
if (ret < 0)
status = connector_status_disconnected;
else if (val & ADV7511_STATUS_HPD)
status = connector_status_connected;
else
status = connector_status_disconnected;
if (adv7511->connector.status != status) {
adv7511->connector.status = status;
drm_kms_helper_hotplug_event(adv7511->connector.dev);
}
}
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static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
{
unsigned int irq0, irq1;
int ret;
ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
if (ret < 0)
return ret;
ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1);
if (ret < 0)
return ret;
regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0);
regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder)
schedule_work(&adv7511->hpd_work);
if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
adv7511->edid_read = true;
if (adv7511->i2c_main->irq)
wake_up_all(&adv7511->wq);
}
return 0;
}
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static irqreturn_t adv7511_irq_handler(int irq, void *devid)
{
struct adv7511 *adv7511 = devid;
int ret;
ret = adv7511_irq_process(adv7511, true);
return ret < 0 ? IRQ_NONE : IRQ_HANDLED;
}
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/* -----------------------------------------------------------------------------
* EDID retrieval
*/
static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout)
{
int ret;
if (adv7511->i2c_main->irq) {
ret = wait_event_interruptible_timeout(adv7511->wq,
adv7511->edid_read, msecs_to_jiffies(timeout));
} else {
for (; timeout > 0; timeout -= 25) {
ret = adv7511_irq_process(adv7511, false);
if (ret < 0)
break;
if (adv7511->edid_read)
break;
msleep(25);
}
}
return adv7511->edid_read ? 0 : -EIO;
}
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static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
size_t len)
{
struct adv7511 *adv7511 = data;
struct i2c_msg xfer[2];
uint8_t offset;
unsigned int i;
int ret;
if (len > 128)
return -EINVAL;
if (adv7511->current_edid_segment != block / 2) {
unsigned int status;
ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS,
&status);
if (ret < 0)
return ret;
if (status != 2) {
adv7511->edid_read = false;
regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT,
block);
ret = adv7511_wait_for_edid(adv7511, 200);
if (ret < 0)
return ret;
}
/* Break this apart, hopefully more I2C controllers will
* support 64 byte transfers than 256 byte transfers
*/
xfer[0].addr = adv7511->i2c_edid->addr;
xfer[0].flags = 0;
xfer[0].len = 1;
xfer[0].buf = &offset;
xfer[1].addr = adv7511->i2c_edid->addr;
xfer[1].flags = I2C_M_RD;
xfer[1].len = 64;
xfer[1].buf = adv7511->edid_buf;
offset = 0;
for (i = 0; i < 4; ++i) {
ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer,
ARRAY_SIZE(xfer));
if (ret < 0)
return ret;
else if (ret != 2)
return -EIO;
xfer[1].buf += 64;
offset += 64;
}
adv7511->current_edid_segment = block / 2;
}
if (block % 2 == 0)
memcpy(buf, adv7511->edid_buf, len);
else
memcpy(buf, adv7511->edid_buf + 128, len);
return 0;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 325 | 97.01% | 1 | 50.00% |
| Laurent Pinchart | 10 | 2.99% | 1 | 50.00% |
| Total | 335 | 100.00% | 2 | 100.00% |
/* -----------------------------------------------------------------------------
* ADV75xx helpers
*/
static int adv7511_get_modes(struct adv7511 *adv7511,
struct drm_connector *connector)
{
struct edid *edid;
unsigned int count;
/* Reading the EDID only works if the device is powered */
if (!adv7511->powered) {
unsigned int edid_i2c_addr =
(adv7511->i2c_main->addr << 1) + 4;
__adv7511_power_on(adv7511);
/* Reset the EDID_I2C_ADDR register as it might be cleared */
regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
edid_i2c_addr);
}
edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
if (!adv7511->powered)
__adv7511_power_off(adv7511);
kfree(adv7511->edid);
adv7511->edid = edid;
if (!edid)
return 0;
drm_mode_connector_update_edid_property(connector, edid);
count = drm_add_edid_modes(connector, edid);
adv7511_set_config_csc(adv7511, connector, adv7511->rgb);
return count;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 104 | 73.24% | 1 | 20.00% |
| John Stultz | 32 | 22.54% | 2 | 40.00% |
| Laurent Pinchart | 4 | 2.82% | 1 | 20.00% |
| Archit Taneja | 2 | 1.41% | 1 | 20.00% |
| Total | 142 | 100.00% | 5 | 100.00% |
static enum drm_connector_status
adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
{
enum drm_connector_status status;
unsigned int val;
bool hpd;
int ret;
ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
if (ret < 0)
return connector_status_disconnected;
if (val & ADV7511_STATUS_HPD)
status = connector_status_connected;
else
status = connector_status_disconnected;
hpd = adv7511_hpd(adv7511);
/* The chip resets itself when the cable is disconnected, so in case
* there is a pending HPD interrupt and the cable is connected there was
* at least one transition from disconnected to connected and the chip
* has to be reinitialized. */
if (status == connector_status_connected && hpd && adv7511->powered) {
regcache_mark_dirty(adv7511->regmap);
adv7511_power_on(adv7511);
adv7511_get_modes(adv7511, connector);
if (adv7511->status == connector_status_connected)
status = connector_status_disconnected;
} else {
/* Renable HPD sensing */
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7511_REG_POWER2_HPD_SRC_MASK,
ADV7511_REG_POWER2_HPD_SRC_BOTH);
}
adv7511->status = status;
return status;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 139 | 93.92% | 1 | 25.00% |
| Archit Taneja | 4 | 2.70% | 1 | 25.00% |
| Wolfram Sang | 3 | 2.03% | 1 | 25.00% |
| Laurent Pinchart | 2 | 1.35% | 1 | 25.00% |
| Total | 148 | 100.00% | 4 | 100.00% |
static int adv7511_mode_valid(struct adv7511 *adv7511,
struct drm_display_mode *mode)
{
if (mode->clock > 165000)
return MODE_CLOCK_HIGH;
return MODE_OK;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 27 | 90.00% | 1 | 50.00% |
| Archit Taneja | 3 | 10.00% | 1 | 50.00% |
| Total | 30 | 100.00% | 2 | 100.00% |
static void adv7511_mode_set(struct adv7511 *adv7511,
struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
unsigned int low_refresh_rate;
unsigned int hsync_polarity = 0;
unsigned int vsync_polarity = 0;
if (adv7511->embedded_sync) {
unsigned int hsync_offset, hsync_len;
unsigned int vsync_offset, vsync_len;
hsync_offset = adj_mode->crtc_hsync_start -
adj_mode->crtc_hdisplay;
vsync_offset = adj_mode->crtc_vsync_start -
adj_mode->crtc_vdisplay;
hsync_len = adj_mode->crtc_hsync_end -
adj_mode->crtc_hsync_start;
vsync_len = adj_mode->crtc_vsync_end -
adj_mode->crtc_vsync_start;
/* The hardware vsync generator has a off-by-one bug */
vsync_offset += 1;
regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB,
((hsync_offset >> 10) & 0x7) << 5);
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0),
(hsync_offset >> 2) & 0xff);
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1),
((hsync_offset & 0x3) << 6) |
((hsync_len >> 4) & 0x3f));
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2),
((hsync_len & 0xf) << 4) |
((vsync_offset >> 6) & 0xf));
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3),
((vsync_offset & 0x3f) << 2) |
((vsync_len >> 8) & 0x3));
regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4),
vsync_len & 0xff);
hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC);
vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC);
} else {
enum adv7511_sync_polarity mode_hsync_polarity;
enum adv7511_sync_polarity mode_vsync_polarity;
/**
* If the input signal is always low or always high we want to
* invert or let it passthrough depending on the polarity of the
* current mode.
**/
if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW;
else
mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW;
else
mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
if (adv7511->hsync_polarity != mode_hsync_polarity &&
adv7511->hsync_polarity !=
ADV7511_SYNC_POLARITY_PASSTHROUGH)
hsync_polarity = 1;
if (adv7511->vsync_polarity != mode_vsync_polarity &&
adv7511->vsync_polarity !=
ADV7511_SYNC_POLARITY_PASSTHROUGH)
vsync_polarity = 1;
}
if (mode->vrefresh <= 24000)
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
else if (mode->vrefresh <= 25000)
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
else if (mode->vrefresh <= 30000)
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
else
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
regmap_update_bits(adv7511->regmap, 0xfb,
0x6, low_refresh_rate << 1);
regmap_update_bits(adv7511->regmap, 0x17,
0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
if (adv7511->type == ADV7533)
adv7533_mode_set(adv7511, adj_mode);
drm_mode_copy(&adv7511->curr_mode, adj_mode);
/*
* TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is
* supposed to give better results.
*/
adv7511->f_tmds = mode->clock;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 446 | 94.09% | 1 | 25.00% |
| Archit Taneja | 28 | 5.91% | 3 | 75.00% |
| Total | 474 | 100.00% | 4 | 100.00% |
/* Connector funcs */
static struct adv7511 *connector_to_adv7511(struct drm_connector *connector)
{
return container_of(connector, struct adv7511, connector);
}
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static int adv7511_connector_get_modes(struct drm_connector *connector)
{
struct adv7511 *adv = connector_to_adv7511(connector);
return adv7511_get_modes(adv, connector);
}
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| Total | 29 | 100.00% | 1 | 100.00% |
static enum drm_mode_status
adv7511_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
struct adv7511 *adv = connector_to_adv7511(connector);
return adv7511_mode_valid(adv, mode);
}
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| Archit Taneja | 35 | 100.00% | 1 | 100.00% |
| Total | 35 | 100.00% | 1 | 100.00% |
static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = {
.get_modes = adv7511_connector_get_modes,
.mode_valid = adv7511_connector_mode_valid,
};
static enum drm_connector_status
adv7511_connector_detect(struct drm_connector *connector, bool force)
{
struct adv7511 *adv = connector_to_adv7511(connector);
return adv7511_detect(adv, connector);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Archit Taneja | 22 | 66.67% | 1 | 50.00% |
| Lars-Peter Clausen | 11 | 33.33% | 1 | 50.00% |
| Total | 33 | 100.00% | 2 | 100.00% |
static struct drm_connector_funcs adv7511_connector_funcs = {
.dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = adv7511_connector_detect,
.destroy = drm_connector_cleanup,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
/* Bridge funcs */
static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge)
{
return container_of(bridge, struct adv7511, bridge);
}
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| Archit Taneja | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
static void adv7511_bridge_enable(struct drm_bridge *bridge)
{
struct adv7511 *adv = bridge_to_adv7511(bridge);
adv7511_power_on(adv);
}
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| Archit Taneja | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
static void adv7511_bridge_disable(struct drm_bridge *bridge)
{
struct adv7511 *adv = bridge_to_adv7511(bridge);
adv7511_power_off(adv);
}
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| Archit Taneja | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
static void adv7511_bridge_mode_set(struct drm_bridge *bridge,
struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
struct adv7511 *adv = bridge_to_adv7511(bridge);
adv7511_mode_set(adv, mode, adj_mode);
}
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| Archit Taneja | 40 | 100.00% | 1 | 100.00% |
| Total | 40 | 100.00% | 1 | 100.00% |
static int adv7511_bridge_attach(struct drm_bridge *bridge)
{
struct adv7511 *adv = bridge_to_adv7511(bridge);
int ret;
if (!bridge->encoder) {
DRM_ERROR("Parent encoder object not found");
return -ENODEV;
}
adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
ret = drm_connector_init(bridge->dev, &adv->connector,
&adv7511_connector_funcs,
DRM_MODE_CONNECTOR_HDMIA);
if (ret) {
DRM_ERROR("Failed to initialize connector with drm\n");
return ret;
}
drm_connector_helper_add(&adv->connector,
&adv7511_connector_helper_funcs);
drm_mode_connector_attach_encoder(&adv->connector, bridge->encoder);
if (adv->type == ADV7533)
ret = adv7533_attach_dsi(adv);
if (adv->i2c_main->irq)
regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0),
ADV7511_INT0_HPD);
return ret;
}
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| Archit Taneja | 146 | 100.00% | 3 | 100.00% |
| Total | 146 | 100.00% | 3 | 100.00% |
static struct drm_bridge_funcs adv7511_bridge_funcs = {
.enable = adv7511_bridge_enable,
.disable = adv7511_bridge_disable,
.mode_set = adv7511_bridge_mode_set,
.attach = adv7511_bridge_attach,
};
/* -----------------------------------------------------------------------------
* Probe & remove
*/
static const char * const adv7511_supply_names[] = {
"avdd",
"dvdd",
"pvdd",
"bgvdd",
"dvdd-3v",
};
static const char * const adv7533_supply_names[] = {
"avdd",
"dvdd",
"pvdd",
"a2vdd",
"v3p3",
"v1p2",
};
static int adv7511_init_regulators(struct adv7511 *adv)
{
struct device *dev = &adv->i2c_main->dev;
const char * const *supply_names;
unsigned int i;
int ret;
if (adv->type == ADV7511) {
supply_names = adv7511_supply_names;
adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
} else {
supply_names = adv7533_supply_names;
adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
}
adv->supplies = devm_kcalloc(dev, adv->num_supplies,
sizeof(*adv->supplies), GFP_KERNEL);
if (!adv->supplies)
return -ENOMEM;
for (i = 0; i < adv->num_supplies; i++)
adv->supplies[i].supply = supply_names[i];
ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
if (ret)
return ret;
return regulator_bulk_enable(adv->num_supplies, adv->supplies);
}
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| Archit Taneja | 173 | 100.00% | 1 | 100.00% |
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static void adv7511_uninit_regulators(struct adv7511 *adv)
{
regulator_bulk_disable(adv->num_supplies, adv->supplies);
}
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| Archit Taneja | 22 | 100.00% | 1 | 100.00% |
| Total | 22 | 100.00% | 1 | 100.00% |
static int adv7511_parse_dt(struct device_node *np,
struct adv7511_link_config *config)
{
const char *str;
int ret;
of_property_read_u32(np, "adi,input-depth", &config->input_color_depth);
if (config->input_color_depth != 8 && config->input_color_depth != 10 &&
config->input_color_depth != 12)
return -EINVAL;
ret = of_property_read_string(np, "adi,input-colorspace", &str);
if (ret < 0)
return ret;
if (!strcmp(str, "rgb"))
config->input_colorspace = HDMI_COLORSPACE_RGB;
else if (!strcmp(str, "yuv422"))
config->input_colorspace = HDMI_COLORSPACE_YUV422;
else if (!strcmp(str, "yuv444"))
config->input_colorspace = HDMI_COLORSPACE_YUV444;
else
return -EINVAL;
ret = of_property_read_string(np, "adi,input-clock", &str);
if (ret < 0)
return ret;
if (!strcmp(str, "1x"))
config->input_clock = ADV7511_INPUT_CLOCK_1X;
else if (!strcmp(str, "2x"))
config->input_clock = ADV7511_INPUT_CLOCK_2X;
else if (!strcmp(str, "ddr"))
config->input_clock = ADV7511_INPUT_CLOCK_DDR;
else
return -EINVAL;
if (config->input_colorspace == HDMI_COLORSPACE_YUV422 ||
config->input_clock != ADV7511_INPUT_CLOCK_1X) {
ret = of_property_read_u32(np, "adi,input-style",
&config->input_style);
if (ret)
return ret;
if (config->input_style < 1 || config->input_style > 3)
return -EINVAL;
ret = of_property_read_string(np, "adi,input-justification",
&str);
if (ret < 0)
return ret;
if (!strcmp(str, "left"))
config->input_justification =
ADV7511_INPUT_JUSTIFICATION_LEFT;
else if (!strcmp(str, "evenly"))
config->input_justification =
ADV7511_INPUT_JUSTIFICATION_EVENLY;
else if (!strcmp(str, "right"))
config->input_justification =
ADV7511_INPUT_JUSTIFICATION_RIGHT;
else
return -EINVAL;
} else {
config->input_style = 1;
config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT;
}
of_property_read_u32(np, "adi,clock-delay", &config->clock_delay);
if (config->clock_delay < -1200 || config->clock_delay > 1600)
return -EINVAL;
config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync");
/* Hardcode the sync pulse configurations for now. */
config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE;
config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 399 | 94.55% | 1 | 50.00% |
| Archit Taneja | 23 | 5.45% | 1 | 50.00% |
| Total | 422 | 100.00% | 2 | 100.00% |
static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
{
struct adv7511_link_config link_config;
struct adv7511 *adv7511;
struct device *dev = &i2c->dev;
unsigned int main_i2c_addr = i2c->addr << 1;
unsigned int edid_i2c_addr = main_i2c_addr + 4;
unsigned int val;
int ret;
if (!dev->of_node)
return -EINVAL;
adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL);
if (!adv7511)
return -ENOMEM;
adv7511->i2c_main = i2c;
adv7511->powered = false;
adv7511->status = connector_status_disconnected;
if (dev->of_node)
adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
else
adv7511->type = id->driver_data;
memset(&link_config, 0, sizeof(link_config));
if (adv7511->type == ADV7511)
ret = adv7511_parse_dt(dev->of_node, &link_config);
else
ret = adv7533_parse_dt(dev->of_node, adv7511);
if (ret)
return ret;
ret = adv7511_init_regulators(adv7511);
if (ret) {
dev_err(dev, "failed to init regulators\n");
return ret;
}
/*
* The power down GPIO is optional. If present, toggle it from active to
* inactive to wake up the encoder.
*/
adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH);
if (IS_ERR(adv7511->gpio_pd)) {
ret = PTR_ERR(adv7511->gpio_pd);
goto uninit_regulators;
}
if (adv7511->gpio_pd) {
mdelay(5);
gpiod_set_value_cansleep(adv7511->gpio_pd, 0);
}
adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config);
if (IS_ERR(adv7511->regmap)) {
ret = PTR_ERR(adv7511->regmap);
goto uninit_regulators;
}
ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val);
if (ret)
goto uninit_regulators;
dev_dbg(dev, "Rev. %d\n", val);
if (adv7511->type == ADV7511)
ret = regmap_register_patch(adv7511->regmap,
adv7511_fixed_registers,
ARRAY_SIZE(adv7511_fixed_registers));
else
ret = adv7533_patch_registers(adv7511);
if (ret)
goto uninit_regulators;
regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr);
regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR,
main_i2c_addr - 0xa);
regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR,
main_i2c_addr - 2);
adv7511_packet_disable(adv7511, 0xffff);
adv7511->i2c_edid = i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1);
if (!adv7511->i2c_edid) {
ret = -ENOMEM;
goto uninit_regulators;
}
if (adv7511->type == ADV7533) {
ret = adv7533_init_cec(adv7511);
if (ret)
goto err_i2c_unregister_edid;
}
INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
if (i2c->irq) {
init_waitqueue_head(&adv7511->wq);
ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
adv7511_irq_handler,
IRQF_ONESHOT, dev_name(dev),
adv7511);
if (ret)
goto err_unregister_cec;
}
/* CEC is unused for now */
regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL,
ADV7511_CEC_CTRL_POWER_DOWN);
adv7511_power_off(adv7511);
i2c_set_clientdata(i2c, adv7511);
if (adv7511->type == ADV7511)
adv7511_set_link_config(adv7511, &link_config);
adv7511->bridge.funcs = &adv7511_bridge_funcs;
adv7511->bridge.of_node = dev->of_node;
ret = drm_bridge_add(&adv7511->bridge);
if (ret) {
dev_err(dev, "failed to add adv7511 bridge\n");
goto err_unregister_cec;
}
adv7511_audio_init(dev, adv7511);
return 0;
err_unregister_cec:
adv7533_uninit_cec(adv7511);
err_i2c_unregister_edid:
i2c_unregister_device(adv7511->i2c_edid);
uninit_regulators:
adv7511_uninit_regulators(adv7511);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 385 | 58.51% | 1 | 11.11% |
| Archit Taneja | 229 | 34.80% | 4 | 44.44% |
| Sergei Shtylyov | 24 | 3.65% | 1 | 11.11% |
| John Stultz | 17 | 2.58% | 2 | 22.22% |
| Laurent Pinchart | 3 | 0.46% | 1 | 11.11% |
| Total | 658 | 100.00% | 9 | 100.00% |
static int adv7511_remove(struct i2c_client *i2c)
{
struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
if (adv7511->type == ADV7533) {
adv7533_detach_dsi(adv7511);
adv7533_uninit_cec(adv7511);
}
adv7511_uninit_regulators(adv7511);
drm_bridge_remove(&adv7511->bridge);
adv7511_audio_exit(adv7511);
i2c_unregister_device(adv7511->i2c_edid);
kfree(adv7511->edid);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 37 | 48.68% | 1 | 16.67% |
| Archit Taneja | 34 | 44.74% | 4 | 66.67% |
| John Stultz | 5 | 6.58% | 1 | 16.67% |
| Total | 76 | 100.00% | 6 | 100.00% |
static const struct i2c_device_id adv7511_i2c_ids[] = {
{ "adv7511", ADV7511 },
{ "adv7511w", ADV7511 },
{ "adv7513", ADV7511 },
#ifdef CONFIG_DRM_I2C_ADV7533
{ "adv7533", ADV7533 },
#endif
{ }
};
MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
static const struct of_device_id adv7511_of_ids[] = {
{ .compatible = "adi,adv7511", .data = (void *)ADV7511 },
{ .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
{ .compatible = "adi,adv7513", .data = (void *)ADV7511 },
#ifdef CONFIG_DRM_I2C_ADV7533
{ .compatible = "adi,adv7533", .data = (void *)ADV7533 },
#endif
{ }
};
MODULE_DEVICE_TABLE(of, adv7511_of_ids);
static struct mipi_dsi_driver adv7533_dsi_driver = {
.driver.name = "adv7533",
};
static struct i2c_driver adv7511_driver = {
.driver = {
.name = "adv7511",
.of_match_table = adv7511_of_ids,
},
.id_table = adv7511_i2c_ids,
.probe = adv7511_probe,
.remove = adv7511_remove,
};
static int __init adv7511_init(void)
{
if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
mipi_dsi_driver_register(&adv7533_dsi_driver);
return i2c_add_driver(&adv7511_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Archit Taneja | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
module_init(adv7511_init);
static void __exit adv7511_exit(void)
{
i2c_del_driver(&adv7511_driver);
if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
mipi_dsi_driver_unregister(&adv7533_dsi_driver);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Archit Taneja | 24 | 85.71% | 1 | 50.00% |
| Lars-Peter Clausen | 4 | 14.29% | 1 | 50.00% |
| Total | 28 | 100.00% | 2 | 100.00% |
module_exit(adv7511_exit);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver");
MODULE_LICENSE("GPL");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Lars-Peter Clausen | 3992 | 69.77% | 1 | 4.35% |
| Archit Taneja | 1199 | 20.95% | 8 | 34.78% |
| Laurent Pinchart | 272 | 4.75% | 3 | 13.04% |
| John Stultz | 197 | 3.44% | 6 | 26.09% |
| Wolfram Sang | 37 | 0.65% | 3 | 13.04% |
| Sergei Shtylyov | 24 | 0.42% | 1 | 4.35% |
| Nariman Poushin | 1 | 0.02% | 1 | 4.35% |
| Total | 5722 | 100.00% | 23 | 100.00% |
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