lkml.org 
[lkml]   [2018]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/5] remoteproc: Make start and stop in subdev optional
Date
From: Bjorn Andersson <bjorn.andersson@linaro.org>

Some subdevices, such as glink ssr only care about the stop operation,
so make the operations optional to reduce client code.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Alex Elder <elder@linaro.org>
---
drivers/remoteproc/remoteproc_core.c | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 5dd58e6bea88..981ae6dff145 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -780,16 +780,20 @@ static int rproc_start_subdevices(struct rproc *rproc)
int ret;

list_for_each_entry(subdev, &rproc->subdevs, node) {
- ret = subdev->start(subdev);
- if (ret)
- goto unroll_registration;
+ if (subdev->start) {
+ ret = subdev->start(subdev);
+ if (ret)
+ goto unroll_registration;
+ }
}

return 0;

unroll_registration:
- list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node)
- subdev->stop(subdev, true);
+ list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node) {
+ if (subdev->stop)
+ subdev->stop(subdev, true);
+ }

return ret;
}
@@ -798,8 +802,10 @@ static void rproc_stop_subdevices(struct rproc *rproc, bool crashed)
{
struct rproc_subdev *subdev;

- list_for_each_entry_reverse(subdev, &rproc->subdevs, node)
- subdev->stop(subdev, crashed);
+ list_for_each_entry_reverse(subdev, &rproc->subdevs, node) {
+ if (subdev->stop)
+ subdev->stop(subdev, crashed);
+ }
}

/**
--
2.17.0
\
 
 \ /
  Last update: 2018-05-15 22:55    [W:0.189 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site