#include <drm/bridge/analogix_dp.h>
#include "analogix_dp_core.h"
+#include "analogix_dp_reg.h"
#define to_dp(nm) container_of(nm, struct analogix_dp_device, nm)
return 0;
}
-static unsigned char analogix_dp_calc_edid_check_sum(unsigned char *edid_data)
+int analogix_dp_psr_supported(struct device *dev)
{
- int i;
- unsigned char sum = 0;
-
- for (i = 0; i < EDID_BLOCK_LENGTH; i++)
- sum = sum + edid_data[i];
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
- return sum;
+ return dp->psr_support;
}
+EXPORT_SYMBOL_GPL(analogix_dp_psr_supported);
-static int analogix_dp_read_edid(struct analogix_dp_device *dp)
+int analogix_dp_enable_psr(struct device *dev)
{
- unsigned char *edid = dp->edid;
- unsigned int extend_block = 0;
- unsigned char sum;
- unsigned char test_vector;
- int retval;
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
+ struct edp_vsc_psr psr_vsc;
- /*
- * EDID device address is 0x50.
- * However, if necessary, you must have set upper address
- * into E-EDID in I2C device, 0x30.
- */
+ if (!dp->psr_support)
+ return -EINVAL;
- /* 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);
- if (retval)
- return retval;
+ /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
+ memset(&psr_vsc, 0, sizeof(psr_vsc));
+ psr_vsc.sdp_header.HB0 = 0;
+ psr_vsc.sdp_header.HB1 = 0x7;
+ psr_vsc.sdp_header.HB2 = 0x2;
+ psr_vsc.sdp_header.HB3 = 0x8;
- if (extend_block > 0) {
- 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,
- EDID_HEADER_PATTERN,
- EDID_BLOCK_LENGTH,
- &edid[EDID_HEADER_PATTERN]);
- if (retval != 0) {
- dev_err(dp->dev, "EDID Read failed!\n");
- return -EIO;
- }
- sum = analogix_dp_calc_edid_check_sum(edid);
- if (sum != 0) {
- dev_err(dp->dev, "EDID bad checksum!\n");
- return -EIO;
- }
+ psr_vsc.DB0 = 0;
+ psr_vsc.DB1 = EDP_VSC_PSR_STATE_ACTIVE | EDP_VSC_PSR_CRC_VALUES_VALID;
- /* Read additional EDID data */
- retval = analogix_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;
- }
- sum = analogix_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
- if (sum != 0) {
- dev_err(dp->dev, "EDID bad checksum!\n");
- return -EIO;
- }
+ analogix_dp_send_psr_spd(dp, &psr_vsc);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(analogix_dp_enable_psr);
- 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_BLOCK_LENGTH + EDID_CHECKSUM]);
- analogix_dp_write_byte_to_dpcd(dp,
- DP_TEST_RESPONSE,
- DP_TEST_EDID_CHECKSUM_WRITE);
- }
- } else {
- dev_info(dp->dev, "EDID data does not include any extensions.\n");
-
- /* Read EDID data */
- retval = analogix_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;
- }
- sum = analogix_dp_calc_edid_check_sum(edid);
- if (sum != 0) {
- dev_err(dp->dev, "EDID bad checksum!\n");
- return -EIO;
- }
+int analogix_dp_disable_psr(struct device *dev)
+{
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
+ struct edp_vsc_psr psr_vsc;
- 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]);
- analogix_dp_write_byte_to_dpcd(dp,
- DP_TEST_RESPONSE, DP_TEST_EDID_CHECKSUM_WRITE);
- }
- }
+ if (!dp->psr_support)
+ return -EINVAL;
+
+ /* Prepare VSC packet as per EDP 1.4 spec, Table 6.9 */
+ memset(&psr_vsc, 0, sizeof(psr_vsc));
+ psr_vsc.sdp_header.HB0 = 0;
+ psr_vsc.sdp_header.HB1 = 0x7;
+ psr_vsc.sdp_header.HB2 = 0x2;
+ psr_vsc.sdp_header.HB3 = 0x8;
+
+ psr_vsc.DB0 = 0;
+ psr_vsc.DB1 = 0;
- dev_dbg(dp->dev, "EDID Read success!\n");
+ analogix_dp_send_psr_spd(dp, &psr_vsc);
return 0;
}
+EXPORT_SYMBOL_GPL(analogix_dp_disable_psr);
-static int analogix_dp_handle_edid(struct analogix_dp_device *dp)
+static bool analogix_dp_detect_sink_psr(struct analogix_dp_device *dp)
{
- u8 buf[12];
- int i;
- int retval;
+ unsigned char psr_version;
- /* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
- retval = analogix_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
- if (retval)
- return retval;
+ drm_dp_dpcd_readb(&dp->aux, DP_PSR_SUPPORT, &psr_version);
+ dev_dbg(dp->dev, "Panel PSR version : %x\n", psr_version);
- /* Read EDID */
- for (i = 0; i < 3; i++) {
- retval = analogix_dp_read_edid(dp);
- if (!retval)
- break;
- }
+ return (psr_version & DP_PSR_IS_SUPPORTED) ? true : false;
+}
- return retval;
+static void analogix_dp_enable_sink_psr(struct analogix_dp_device *dp)
+{
+ unsigned char psr_en;
+
+ /* Disable psr function */
+ drm_dp_dpcd_readb(&dp->aux, DP_PSR_EN_CFG, &psr_en);
+ psr_en &= ~DP_PSR_ENABLE;
+ drm_dp_dpcd_writeb(&dp->aux, DP_PSR_EN_CFG, psr_en);
+
+ /* Main-Link transmitter remains active during PSR active states */
+ psr_en = DP_PSR_MAIN_LINK_ACTIVE | DP_PSR_CRC_VERIFICATION;
+ drm_dp_dpcd_writeb(&dp->aux, DP_PSR_EN_CFG, psr_en);
+
+ /* Enable psr function */
+ psr_en = DP_PSR_ENABLE | DP_PSR_MAIN_LINK_ACTIVE |
+ DP_PSR_CRC_VERIFICATION;
+ drm_dp_dpcd_writeb(&dp->aux, DP_PSR_EN_CFG, psr_en);
+
+ analogix_dp_enable_psr_crc(dp);
}
static void
{
u8 data;
- analogix_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
+ drm_dp_dpcd_readb(&dp->aux, DP_LANE_COUNT_SET, &data);
if (enable)
- analogix_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
- DP_LANE_COUNT_ENHANCED_FRAME_EN |
- DPCD_LANE_COUNT_SET(data));
+ drm_dp_dpcd_writeb(&dp->aux, DP_LANE_COUNT_SET,
+ 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));
+ drm_dp_dpcd_writeb(&dp->aux, DP_LANE_COUNT_SET,
+ DPCD_LANE_COUNT_SET(data));
}
static int analogix_dp_is_enhanced_mode_available(struct analogix_dp_device *dp)
u8 data;
int retval;
- analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+ drm_dp_dpcd_readb(&dp->aux, DP_MAX_LANE_COUNT, &data);
retval = DPCD_ENHANCED_FRAME_CAP(data);
return retval;
{
analogix_dp_set_training_pattern(dp, DP_NONE);
- analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
- DP_TRAINING_PATTERN_DISABLE);
+ drm_dp_dpcd_writeb(&dp->aux, DP_TRAINING_PATTERN_SET,
+ DP_TRAINING_PATTERN_DISABLE);
}
static void
/* 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);
- if (retval)
+ retval = drm_dp_dpcd_write(&dp->aux, DP_LINK_BW_SET, buf, 2);
+ if (retval < 0)
return retval;
/* Set TX pre-emphasis to minimum */
analogix_dp_set_training_pattern(dp, TRAINING_PTN1);
/* Set RX training pattern */
- retval = analogix_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- DP_LINK_SCRAMBLING_DISABLE | DP_TRAINING_PATTERN_1);
- if (retval)
+ retval = drm_dp_dpcd_writeb(&dp->aux, DP_TRAINING_PATTERN_SET,
+ DP_LINK_SCRAMBLING_DISABLE |
+ DP_TRAINING_PATTERN_1);
+ if (retval < 0)
return retval;
for (lane = 0; lane < lane_count; lane++)
buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
- retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, buf);
+ retval = drm_dp_dpcd_write(&dp->aux, DP_TRAINING_LANE0_SET, buf,
+ lane_count);
+ if (retval < 0)
+ return retval;
- return retval;
+ return 0;
}
static unsigned char analogix_dp_get_lane_status(u8 link_status[2], int lane)
lane_count = dp->link_train.lane_count;
- retval = analogix_dp_read_bytes_from_dpcd(dp,
- DP_LANE0_1_STATUS, 2, link_status);
- if (retval)
+ retval = drm_dp_dpcd_read(&dp->aux, DP_LANE0_1_STATUS, link_status, 2);
+ if (retval < 0)
return retval;
- retval = analogix_dp_read_bytes_from_dpcd(dp,
- DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
- if (retval)
+ retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,
+ adjust_request, 2);
+ if (retval < 0)
return retval;
if (analogix_dp_clock_recovery_ok(link_status, lane_count) == 0) {
/* set training pattern 2 for EQ */
analogix_dp_set_training_pattern(dp, TRAINING_PTN2);
- retval = analogix_dp_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- DP_LINK_SCRAMBLING_DISABLE |
- DP_TRAINING_PATTERN_2);
- if (retval)
+ retval = drm_dp_dpcd_writeb(&dp->aux, DP_TRAINING_PATTERN_SET,
+ DP_LINK_SCRAMBLING_DISABLE |
+ DP_TRAINING_PATTERN_2);
+ if (retval < 0)
return retval;
dev_info(dp->dev, "Link Training Clock Recovery success\n");
analogix_dp_set_lane_link_training(dp,
dp->link_train.training_lane[lane], lane);
- retval = analogix_dp_write_bytes_to_dpcd(dp,
- DP_TRAINING_LANE0_SET, lane_count,
- dp->link_train.training_lane);
- if (retval)
+ retval = drm_dp_dpcd_write(&dp->aux, DP_TRAINING_LANE0_SET,
+ dp->link_train.training_lane, lane_count);
+ if (retval < 0)
return retval;
- return retval;
+ return 0;
}
static int analogix_dp_process_equalizer_training(struct analogix_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = analogix_dp_read_bytes_from_dpcd(dp,
- DP_LANE0_1_STATUS, 2, link_status);
- if (retval)
+ retval = drm_dp_dpcd_read(&dp->aux, DP_LANE0_1_STATUS, link_status, 2);
+ if (retval < 0)
return retval;
if (analogix_dp_clock_recovery_ok(link_status, lane_count)) {
return -EIO;
}
- retval = analogix_dp_read_bytes_from_dpcd(dp,
- DP_ADJUST_REQUEST_LANE0_1, 2, adjust_request);
- if (retval)
+ retval = drm_dp_dpcd_read(&dp->aux, DP_ADJUST_REQUEST_LANE0_1,
+ adjust_request, 2);
+ if (retval < 0)
return retval;
- retval = analogix_dp_read_byte_from_dpcd(dp,
- DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
- if (retval)
+ retval = drm_dp_dpcd_readb(&dp->aux, DP_LANE_ALIGN_STATUS_UPDATED,
+ &link_align);
+ if (retval < 0)
return retval;
analogix_dp_get_adjust_training_lane(dp, adjust_request);
analogix_dp_set_lane_link_training(dp,
dp->link_train.training_lane[lane], lane);
- retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, dp->link_train.training_lane);
+ retval = drm_dp_dpcd_write(&dp->aux, DP_TRAINING_LANE0_SET,
+ dp->link_train.training_lane, lane_count);
+ if (retval < 0)
+ return retval;
- return retval;
+ return 0;
}
static void analogix_dp_get_max_rx_bandwidth(struct analogix_dp_device *dp,
* For DP rev.1.2, Maximum link rate of Main Link lanes
* 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps, 0x14 = 5.4Gbps
*/
- analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
+ drm_dp_dpcd_readb(&dp->aux, DP_MAX_LINK_RATE, &data);
*bandwidth = data;
}
* For DP rev.1.1, Maximum number of Main Link lanes
* 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
*/
- analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+ drm_dp_dpcd_readb(&dp->aux, DP_MAX_LANE_COUNT, &data);
*lane_count = DPCD_MAX_LANE_COUNT(data);
}
if (enable) {
analogix_dp_enable_scrambling(dp);
- 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));
+ drm_dp_dpcd_readb(&dp->aux, DP_TRAINING_PATTERN_SET, &data);
+ drm_dp_dpcd_writeb(&dp->aux, 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_write_byte_to_dpcd(dp,
- DP_TRAINING_PATTERN_SET,
- (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
+ drm_dp_dpcd_readb(&dp->aux, DP_TRAINING_PATTERN_SET, &data);
+ drm_dp_dpcd_writeb(&dp->aux, DP_TRAINING_PATTERN_SET,
+ (u8)(data | DP_LINK_SCRAMBLING_DISABLE));
}
}
/* Enable video */
analogix_dp_start_video(dp);
+
+ dp->psr_support = analogix_dp_detect_sink_psr(dp);
+ if (dp->psr_support)
+ analogix_dp_enable_sink_psr(dp);
}
-int analogix_dp_get_modes(struct drm_connector *connector)
+/*
+ * This function is a bit of a catch-all for panel preparation, hopefully
+ * simplifying the logic of functions that need to prepare/unprepare the panel
+ * below.
+ *
+ * If @prepare is true, this function will prepare the panel. Conversely, if it
+ * is false, the panel will be unprepared.
+ *
+ * If @is_modeset_prepare is true, the function will disregard the current state
+ * of the panel and either prepare/unprepare the panel based on @prepare. Once
+ * it finishes, it will update dp->panel_is_modeset to reflect the current state
+ * of the panel.
+ */
+static int analogix_dp_prepare_panel(struct analogix_dp_device *dp,
+ bool prepare, bool is_modeset_prepare)
{
- struct analogix_dp_device *dp = to_dp(connector);
- struct edid *edid = (struct edid *)dp->edid;
- int num_modes = 0;
+ int ret = 0;
- if (analogix_dp_handle_edid(dp) == 0) {
- drm_mode_connector_update_edid_property(&dp->connector, edid);
- num_modes += drm_add_edid_modes(&dp->connector, edid);
- }
+ if (!dp->plat_data->panel)
+ return 0;
- if (dp->plat_data->panel)
+ mutex_lock(&dp->panel_lock);
+
+ /*
+ * Exit early if this is a temporary prepare/unprepare and we're already
+ * modeset (since we neither want to prepare twice or unprepare early).
+ */
+ if (dp->panel_is_modeset && !is_modeset_prepare)
+ goto out;
+
+ if (prepare)
+ ret = drm_panel_prepare(dp->plat_data->panel);
+ else
+ ret = drm_panel_unprepare(dp->plat_data->panel);
+
+ if (ret)
+ goto out;
+
+ if (is_modeset_prepare)
+ dp->panel_is_modeset = prepare;
+
+out:
+ mutex_unlock(&dp->panel_lock);
+ return ret;
+}
+
+static int analogix_dp_get_modes(struct drm_connector *connector)
+{
+ struct analogix_dp_device *dp = to_dp(connector);
+ struct edid *edid;
+ int ret, num_modes = 0;
+
+ if (dp->plat_data->panel) {
num_modes += drm_panel_get_modes(dp->plat_data->panel);
+ } else {
+ ret = analogix_dp_prepare_panel(dp, true, false);
+ if (ret) {
+ DRM_ERROR("Failed to prepare panel (%d)\n", ret);
+ return 0;
+ }
+
+ edid = drm_get_edid(connector, &dp->aux.ddc);
+ if (edid) {
+ drm_mode_connector_update_edid_property(&dp->connector,
+ edid);
+ num_modes += drm_add_edid_modes(&dp->connector, edid);
+ kfree(edid);
+ }
+
+ ret = analogix_dp_prepare_panel(dp, false, false);
+ if (ret)
+ DRM_ERROR("Failed to unprepare panel (%d)\n", ret);
+ }
if (dp->plat_data->get_modes)
num_modes += dp->plat_data->get_modes(dp->plat_data, connector);
.best_encoder = analogix_dp_best_encoder,
};
-enum drm_connector_status
+static enum drm_connector_status
analogix_dp_detect(struct drm_connector *connector, bool force)
{
struct analogix_dp_device *dp = to_dp(connector);
+ enum drm_connector_status status = connector_status_disconnected;
+ int ret;
- if (analogix_dp_detect_hpd(dp))
+ if (dp->plat_data->panel)
+ return connector_status_connected;
+
+ ret = analogix_dp_prepare_panel(dp, true, false);
+ if (ret) {
+ DRM_ERROR("Failed to prepare panel (%d)\n", ret);
return connector_status_disconnected;
+ }
- return connector_status_connected;
-}
+ if (!analogix_dp_detect_hpd(dp))
+ status = connector_status_connected;
-static void analogix_dp_connector_destroy(struct drm_connector *connector)
-{
- drm_connector_unregister(connector);
- drm_connector_cleanup(connector);
+ ret = analogix_dp_prepare_panel(dp, false, false);
+ if (ret)
+ DRM_ERROR("Failed to unprepare panel (%d)\n", ret);
+ return status;
}
static const struct drm_connector_funcs analogix_dp_connector_funcs = {
.dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = analogix_dp_detect,
- .destroy = analogix_dp_connector_destroy,
+ .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,
return 0;
}
+static void analogix_dp_bridge_pre_enable(struct drm_bridge *bridge)
+{
+ struct analogix_dp_device *dp = bridge->driver_private;
+ int ret;
+
+ ret = analogix_dp_prepare_panel(dp, true, true);
+ if (ret)
+ DRM_ERROR("failed to setup the panel ret = %d\n", ret);
+}
+
static void analogix_dp_bridge_enable(struct drm_bridge *bridge)
{
struct analogix_dp_device *dp = bridge->driver_private;
static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
{
struct analogix_dp_device *dp = bridge->driver_private;
+ int ret;
if (dp->dpms_mode != DRM_MODE_DPMS_ON)
return;
pm_runtime_put_sync(dp->dev);
+ ret = analogix_dp_prepare_panel(dp, false, true);
+ if (ret)
+ DRM_ERROR("failed to setup the panel ret = %d\n", ret);
+
dp->dpms_mode = DRM_MODE_DPMS_OFF;
}
}
static const struct drm_bridge_funcs analogix_dp_bridge_funcs = {
+ .pre_enable = analogix_dp_bridge_pre_enable,
.enable = analogix_dp_bridge_enable,
.disable = analogix_dp_bridge_disable,
- .pre_enable = analogix_dp_bridge_nop,
.post_disable = analogix_dp_bridge_nop,
.mode_set = analogix_dp_bridge_mode_set,
.attach = analogix_dp_bridge_attach,
return 0;
}
+static ssize_t analogix_dpaux_transfer(struct drm_dp_aux *aux,
+ struct drm_dp_aux_msg *msg)
+{
+ struct analogix_dp_device *dp = to_dp(aux);
+
+ return analogix_dp_transfer(dp, msg);
+}
+
int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
struct analogix_dp_plat_data *plat_data)
{
dp->dev = &pdev->dev;
dp->dpms_mode = DRM_MODE_DPMS_OFF;
+ mutex_init(&dp->panel_lock);
+ dp->panel_is_modeset = false;
+
/*
* platform dp driver need containor_of the plat_data to get
* the driver private data, so we need to store the point of
phy_power_on(dp->phy);
- if (dp->plat_data->panel) {
- if (drm_panel_prepare(dp->plat_data->panel)) {
- DRM_ERROR("failed to setup the panel\n");
- return -EBUSY;
- }
- }
-
analogix_dp_init_dp(dp);
ret = devm_request_threaded_irq(&pdev->dev, dp->irq,
dp->drm_dev = drm_dev;
dp->encoder = dp->plat_data->encoder;
+ dp->aux.name = "DP-AUX";
+ dp->aux.transfer = analogix_dpaux_transfer;
+ dp->aux.dev = &pdev->dev;
+
+ ret = drm_dp_aux_register(&dp->aux);
+ if (ret)
+ goto err_disable_pm_runtime;
+
ret = analogix_dp_create_bridge(drm_dev, dp);
if (ret) {
DRM_ERROR("failed to create bridge (%d)\n", ret);
projects / cascardo / linux.git / blobdiff