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| author | Bjorn Andersson <bjorn.andersson@sonymobile.com> | 2016-02-17 22:39:05 -0800 |
|---|---|---|
| committer | Andy Gross <andy.gross@linaro.org> | 2016-03-30 17:21:03 -0500 |
| commit | d5933855c0eb0a4103cf5db784cfdd4d7a85cd56 (patch) | |
| tree | a3004a2200976d6447fa1454e54783d15108e781 /drivers/soc/qcom | |
| parent | 3fd3f2fd86478614fecbe261b201779b4fc6abd2 (diff) | |
| download | linux-stable-d5933855c0eb0a4103cf5db784cfdd4d7a85cd56.tar.gz linux-stable-d5933855c0eb0a4103cf5db784cfdd4d7a85cd56.tar.bz2 linux-stable-d5933855c0eb0a4103cf5db784cfdd4d7a85cd56.zip | |
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: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'drivers/soc/qcom')
| -rw-r--r-- | drivers/soc/qcom/smd.c | 14 |
1 files 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) |