The I2C core now prepares runtime PM on behalf of the I2C client device, so
only thing the driver needs to do is to call pm_runtime_put() at the end of
its ->probe().
This patch converts s5p-tv driver to use this model.
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
---
drivers/media/platform/s5p-tv/sii9234_drv.c | 30 ++++++-----------------------
1 file changed, 6 insertions(+), 24 deletions(-)
diff --git a/drivers/media/platform/s5p-tv/sii9234_drv.c b/drivers/media/platform/s5p-tv/sii9234_drv.c
index 3dd762e..c0e8d42 100644
--- a/drivers/media/platform/s5p-tv/sii9234_drv.c
+++ b/drivers/media/platform/s5p-tv/sii9234_drv.c
@@ -325,8 +325,7 @@ static int sii9234_probe(struct i2c_client *client,
ctx = devm_kzalloc(&client->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx) {
dev_err(dev, "out of memory\n");
- ret = -ENOMEM;
- goto fail;
+ return -ENOMEM;
}
ctx->client = client;
@@ -345,42 +344,25 @@ static int sii9234_probe(struct i2c_client *client,
v4l2_i2c_subdev_init(&ctx->sd, client, &sii9234_ops);
- pm_runtime_enable(dev);
-
- /* enable device */
- ret = pm_runtime_get_sync(dev);
- if (ret)
- goto fail_pm;
-
/* verify chip version */
ret = sii9234_verify_version(client);
- if (ret)
- goto fail_pm_get;
+ if (ret) {
+ dev_err(dev, "failed to verify chip version\n");
+ return ret;
+ }
- /* stop processing */
pm_runtime_put(dev);
dev_info(dev, "probe successful\n");
return 0;
-
-fail_pm_get:
- pm_runtime_put_sync(dev);
-
-fail_pm:
- pm_runtime_disable(dev);
-
-fail:
- dev_err(dev, "probe failed\n");
-
- return ret;
}
static int sii9234_remove(struct i2c_client *client)
{
struct device *dev = &client->dev;
- pm_runtime_disable(dev);
+ pm_runtime_get(dev);
dev_info(dev, "remove successful\n");
--
1.8.4.rc3
--
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