bridge/analogix/analogix-anx6345.c

10 #include <linux/err.h>
100 	int err;
102 	err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM],
105 	if (err)
106 		return err;
108 	err = drm_dp_dpcd_readb(&anx6345->aux, DP_MAX_LINK_RATE, &dp_bw);
109 	if (err < 0)
110 		return err;
122 	err = anx6345_set_bits(anx6345->map[I2C_IDX_TXCOM], SP_VID_CTRL1_REG,
124 	if (err)
125 		return err;
127 	err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM],
129 	if (err)
130 		return err;
133 	err = drm_dp_dpcd_read(&anx6345->aux, DP_DPCD_REV,
135 	if (err < 0) {
136 		DRM_ERROR("Failed to read DPCD: %d\n", err);
137 		return err;
141 	err = anx6345_clear_bits(anx6345->map[I2C_IDX_DPTX],
143 	if (err)
144 		return err;
151 		err = drm_dp_dpcd_readb(&anx6345->aux, DP_SET_POWER, &dpcd[0]);
152 		if (err < 0) {
154 				  err);
155 			return err;
161 		err = drm_dp_dpcd_writeb(&anx6345->aux, DP_SET_POWER, dpcd[0]);
162 		if (err < 0) {
164 				  err);
165 			return err;
177 	err = regmap_write(anx6345->map[I2C_IDX_DPTX],
179 	if (err)
180 		return err;
185 		err = regmap_write(anx6345->map[I2C_IDX_DPTX],
187 		if (err)
188 			return err;
190 		err = drm_dp_dpcd_writeb(&anx6345->aux, DP_DOWNSPREAD_CTRL,
192 		if (err < 0)
193 			return err;
195 		err = drm_dp_dpcd_writeb(&anx6345->aux, DP_DOWNSPREAD_CTRL, 0);
196 		if (err < 0)
197 			return err;
202 		err = anx6345_set_bits(anx6345->map[I2C_IDX_DPTX],
206 		err = anx6345_clear_bits(anx6345->map[I2C_IDX_DPTX],
209 	if (err)
210 		return err;
213 	err = regmap_write(anx6345->map[I2C_IDX_DPTX],
215 	if (err)
216 		return err;
220 	err = regmap_write(anx6345->map[I2C_IDX_DPTX],
222 	if (err)
223 		return err;
228 	err = drm_dp_dpcd_write(&anx6345->aux, DP_LINK_BW_SET, dpcd,
231 	if (err < 0) {
232 		DRM_ERROR("Failed to configure link: %d\n", err);
233 		return err;
237 	err = regmap_write(anx6345->map[I2C_IDX_DPTX], SP_DP_LT_CTRL_REG,
239 	if (err)
240 		return err;
250 	int err, i;
253 	err = regmap_write(anx6345->map[I2C_IDX_TXCOM], SP_VID_CTRL2_REG,
255 	if (err)
256 		return err;
258 	err = regmap_write(anx6345->map[I2C_IDX_DPTX], SP_DP_PLL_CTRL_REG, 0);
259 	if (err)
260 		return err;
262 	err = regmap_write(anx6345->map[I2C_IDX_TXCOM],
264 	if (err)
265 		return err;
267 	err = regmap_write(anx6345->map[I2C_IDX_DPTX],
270 	if (err)
271 		return err;
273 	err = regmap_write(anx6345->map[I2C_IDX_DPTX],
275 	if (err)
276 		return err;
279 	err = anx6345_set_bits(anx6345->map[I2C_IDX_DPTX],
282 	if (err)
283 		return err;
287 		err = regmap_write(anx6345->map[I2C_IDX_DPTX],
289 		if (err)
290 			return err;
294 	err = anx6345_set_bits(anx6345->map[I2C_IDX_TXCOM],
296 	if (err)
297 		return err;
305 	int err;
311 	err = regulator_enable(anx6345->dvdd12);
312 	if (err) {
314 			  err);
321 	err = regulator_enable(anx6345->dvdd25);
322 	if (err) {
324 			  err);
349 	int err;
357 	err = regulator_disable(anx6345->dvdd25);
358 	if (err) {
360 			  err);
366 	err = regulator_disable(anx6345->dvdd12);
367 	if (err) {
369 			  err);
380 	int err;
386 	err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM],
390 	err = anx6345_tx_initialization(anx6345);
391 	if (err) {
392 		DRM_ERROR("Failed eDP transmitter initialization: %d\n", err);
394 		return err;
397 	err = anx6345_dp_link_training(anx6345);
398 	if (err) {
399 		DRM_ERROR("Failed link training: %d\n", err);
401 		return err;
415 	int err;
417 	err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM], SP_VID_CTRL1_REG,
419 	if (err)
420 		return err;
423 	err = anx6345_set_bits(anx6345->map[I2C_IDX_TXCOM], SP_VID_CTRL1_REG,
425 	if (err)
426 		return err;
437 	int err;
439 	err = drm_dp_dpcd_readb(&anx6345->aux, DP_SINK_COUNT, &value);
440 	if (err < 0) {
441 		DRM_ERROR("Get sink count failed %d\n", err);
442 		return err;
456 	int err, num_modes = 0;
467 		err = anx6345_get_downstream_info(anx6345);
468 		if (err) {
469 			DRM_ERROR("Failed to get downstream info: %d\n", err);
477 		err = drm_connector_update_edid_property(connector,
479 		if (err) {
480 			DRM_ERROR("Failed to update EDID property: %d\n", err);
524 	int err;
542 	err = drm_dp_aux_register(&anx6345->aux);
543 	if (err < 0) {
544 		DRM_ERROR("Failed to register aux channel: %d\n", err);
545 		return err;
548 	err = drm_connector_init(bridge->dev, &anx6345->connector,
551 	if (err) {
552 		DRM_ERROR("Failed to initialize connector: %d\n", err);
561 	err = drm_connector_attach_encoder(&anx6345->connector,
563 	if (err) {
564 		DRM_ERROR("Failed to link up connector to encoder: %d\n", err);
568 	err = drm_connector_register(&anx6345->connector);
569 	if (err) {
570 		DRM_ERROR("Failed to register connector: %d\n", err);
579 	return err;
619 	int err;
624 	err = anx6345_start(anx6345);
625 	if (err) {
626 		DRM_ERROR("Failed to initialize: %d\n", err);
630 	err = anx6345_config_dp_output(anx6345);
631 	if (err)
632 		DRM_ERROR("Failed to enable DP output: %d\n", err);
698 	int i, err;
713 	err = drm_of_find_panel_or_bridge(client->dev.of_node, 1, 0,
715 	if (err == -EPROBE_DEFER)
716 		return err;
718 	if (err)
755 			err = PTR_ERR(anx6345->i2c_clients[i]);
764 			err = PTR_ERR(anx6345->map[i]);
780 		err = -ENODEV;
785 	return err;