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authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2018-07-05 16:54:25 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-07 18:25:23 +0300
commitabb9c9b8b51ba53b47ad7685ad2a0a64dbbf7bf5 (patch)
tree846f75fbde9a0c4d43e4c376f3c36f6faf3dd345 /drivers/slimbus/core.c
parent917809e2280bb83994be8b642373fd941d40c407 (diff)
downloadlinux-abb9c9b8b51ba53b47ad7685ad2a0a64dbbf7bf5.tar.xz
slimbus: stream: add stream support
This patch adds support to SLIMbus stream apis for slimbus device. SLIMbus streaming involves adding support to Data Channel Management and channel Reconfiguration Messages to slim core plus few stream apis. >From slim device side the apis are very simple mostly inline with other stream apis. Currently it only supports Isochronous and Push/Pull transport protocols, which are sufficient for audio use cases. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/slimbus/core.c')
-rw-r--r--drivers/slimbus/core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/slimbus/core.c b/drivers/slimbus/core.c
index 88248a4ecad9..95b00d28ad6e 100644
--- a/drivers/slimbus/core.c
+++ b/drivers/slimbus/core.c
@@ -114,6 +114,8 @@ static int slim_add_device(struct slim_controller *ctrl,
sbdev->dev.release = slim_dev_release;
sbdev->dev.driver = NULL;
sbdev->ctrl = ctrl;
+ INIT_LIST_HEAD(&sbdev->stream_list);
+ spin_lock_init(&sbdev->stream_list_lock);
if (node)
sbdev->dev.of_node = of_node_get(node);