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Commit d5933855 authored by Bjorn Andersson's avatar Bjorn Andersson Committed by Andy Gross
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soc: qcom: smd: Support multiple channels per sdev 



This patch allows chaining additional channels to a SMD device, enabling
implementation of multi-channel SMD devies - like Bluetooth.

Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: default avatarAndy Gross <andy.gross@linaro.org>
parent 3fd3f2fd

drivers/soc/qcom/smd.c

+11 −3
Original line number Diff line number Diff line
@@ -193,6 +193,7 @@ struct qcom_smd_channel { 
	int pkt_size;



	struct list_head list;

	struct list_head dev_list;

};



/**
@@ -887,6 +888,8 @@ static int qcom_smd_dev_remove(struct device *dev) 
	struct qcom_smd_device *qsdev = to_smd_device(dev);

	struct qcom_smd_driver *qsdrv = to_smd_driver(dev);

	struct qcom_smd_channel *channel = qsdev->channel;

	struct qcom_smd_channel *tmp;

	struct qcom_smd_channel *ch;



	qcom_smd_channel_set_state(channel, SMD_CHANNEL_CLOSING);
@@ -906,10 +909,14 @@ static int qcom_smd_dev_remove(struct device *dev) 
		qsdrv->remove(qsdev);



	/*

	 * The client is now gone, cleanup and reset the channel state.

	 * The client is now gone, close and release all channels associated

	 * with this sdev

	 */

	channel->qsdev = NULL;

	qcom_smd_channel_close(channel);

	list_for_each_entry_safe(ch, tmp, &channel->dev_list, dev_list) {

		qcom_smd_channel_close(ch);

		list_del(&ch->dev_list);

		ch->qsdev = NULL;

	}



	return 0;

}
@@ -1056,6 +1063,7 @@ static struct qcom_smd_channel *qcom_smd_create_channel(struct qcom_smd_edge *ed 
	if (!channel)

		return ERR_PTR(-ENOMEM);



	INIT_LIST_HEAD(&channel->dev_list);

	channel->edge = edge;

	channel->name = devm_kstrdup(smd->dev, name, GFP_KERNEL);

	if (!channel->name)