177 	struct drm_dp_aux_msg msg;  in drm_dp_dpcd_access()  local
181 	memset(&msg, 0, sizeof(msg));  in drm_dp_dpcd_access()
182 	msg.address = offset;  in drm_dp_dpcd_access()
183 	msg.request = request;  in drm_dp_dpcd_access()
184 	msg.buffer = buffer;  in drm_dp_dpcd_access()
185 	msg.size = size;  in drm_dp_dpcd_access()
196 		err = aux->transfer(aux, &msg);  in drm_dp_dpcd_access()
206 		switch (msg.reply & DP_AUX_NATIVE_REPLY_MASK) {  in drm_dp_dpcd_access()
433 static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)  in drm_dp_i2c_do_msg()  argument
445 		ret = aux->transfer(aux, msg);  in drm_dp_i2c_do_msg()
456 		switch (msg->reply & DP_AUX_NATIVE_REPLY_MASK) {  in drm_dp_i2c_do_msg()
465 			DRM_DEBUG_KMS("native nack (result=%d, size=%zu)\n", ret, msg->size);  in drm_dp_i2c_do_msg()
483 			DRM_ERROR("invalid native reply %#04x\n", msg->reply);  in drm_dp_i2c_do_msg()
487 		switch (msg->reply & DP_AUX_I2C_REPLY_MASK) {  in drm_dp_i2c_do_msg()
496 			DRM_DEBUG_KMS("I2C nack (result=%d, size=%zu\n", ret, msg->size);  in drm_dp_i2c_do_msg()
507 			DRM_ERROR("invalid I2C reply %#04x\n", msg->reply);  in drm_dp_i2c_do_msg()
524 	struct drm_dp_aux_msg msg = *orig_msg;  in drm_dp_i2c_drain_msg()  local
526 	while (msg.size > 0) {  in drm_dp_i2c_drain_msg()
527 		err = drm_dp_i2c_do_msg(aux, &msg);  in drm_dp_i2c_drain_msg()
531 		if (err < msg.size && err < ret) {  in drm_dp_i2c_drain_msg()
533 				      msg.size, err);  in drm_dp_i2c_drain_msg()
537 		msg.size -= err;  in drm_dp_i2c_drain_msg()
538 		msg.buffer += err;  in drm_dp_i2c_drain_msg()
560 	struct drm_dp_aux_msg msg;  in drm_dp_i2c_xfer()  local
565 	memset(&msg, 0, sizeof(msg));  in drm_dp_i2c_xfer()
568 		msg.address = msgs[i].addr;  in drm_dp_i2c_xfer()
569 		msg.request = (msgs[i].flags & I2C_M_RD) ?  in drm_dp_i2c_xfer()
572 		msg.request |= DP_AUX_I2C_MOT;  in drm_dp_i2c_xfer()
577 		msg.buffer = NULL;  in drm_dp_i2c_xfer()
578 		msg.size = 0;  in drm_dp_i2c_xfer()
579 		err = drm_dp_i2c_do_msg(aux, &msg);  in drm_dp_i2c_xfer()
587 		for (j = 0; j < msgs[i].len; j += msg.size) {  in drm_dp_i2c_xfer()
588 			msg.buffer = msgs[i].buf + j;  in drm_dp_i2c_xfer()
589 			msg.size = min(transfer_size, msgs[i].len - j);  in drm_dp_i2c_xfer()
591 			err = drm_dp_i2c_drain_msg(aux, &msg);  in drm_dp_i2c_xfer()
605 	msg.request &= ~DP_AUX_I2C_MOT;  in drm_dp_i2c_xfer()
606 	msg.buffer = NULL;  in drm_dp_i2c_xfer()
607 	msg.size = 0;  in drm_dp_i2c_xfer()
608 	(void)drm_dp_i2c_do_msg(aux, &msg);  in drm_dp_i2c_xfer()