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Date: Wed, 17 Feb 2016 22:39:05 -0800 From: Bjorn Andersson <bjorn.andersson@...aro.org> To: Andy Gross <andy.gross@...aro.org>, David Brown <david.brown@...aro.org> Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, Fengwei Yin <fengwei.yin@...aro.org>, linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org, linux-kernel@...r.kernel.org, Bjorn Andersson <bjorn.andersson@...ymobile.com> Subject: [PATCH v3 4/5] soc: qcom: smd: Support multiple channels per sdev From: Bjorn Andersson <bjorn.andersson@...ymobile.com> This patch allows chaining additional channels to a SMD device, enabling implementation of multi-channel SMD devies - like Bluetooth. Signed-off-by: Bjorn Andersson <bjorn.andersson@...ymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org> --- Changes since v2: - None Changes since v1: - New patch drivers/soc/qcom/smd.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/soc/qcom/smd.c b/drivers/soc/qcom/smd.c index d253e5cc233f..c3fa0fd724f7 100644 --- a/drivers/soc/qcom/smd.c +++ b/drivers/soc/qcom/smd.c @@ -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) -- 2.5.0
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