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authorLad, Prabhakar <prabhakar.csengg@gmail.com>2013-06-22 12:46:34 +0400
committerMauro Carvalho Chehab <m.chehab@samsung.com>2013-07-26 19:58:24 +0400
commited29f894970065402e988088a19698f252b80144 (patch)
treed1f227544c277a325cc40b524ad6b0c2e4c7d438 /drivers/media/i2c/ths8200.c
parent9082a7c66c688cddd305ceca1536fd3f6505ec21 (diff)
downloadlinux-ed29f894970065402e988088a19698f252b80144.tar.xz
[media] media: i2c: ths8200: support asynchronous probing
This patch supports both synchronous and asynchronous ths8200 subdevice probing. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/i2c/ths8200.c')
-rw-r--r--drivers/media/i2c/ths8200.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/media/i2c/ths8200.c b/drivers/media/i2c/ths8200.c
index a24f90c5261c..cc1339a97463 100644
--- a/drivers/media/i2c/ths8200.c
+++ b/drivers/media/i2c/ths8200.c
@@ -21,6 +21,7 @@
#include <linux/module.h>
#include <linux/v4l2-dv-timings.h>
+#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include "ths8200_regs.h"
@@ -500,6 +501,7 @@ static int ths8200_probe(struct i2c_client *client,
{
struct ths8200_state *state;
struct v4l2_subdev *sd;
+ int error;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -517,6 +519,10 @@ static int ths8200_probe(struct i2c_client *client,
ths8200_core_init(sd);
+ error = v4l2_async_register_subdev(&state->sd);
+ if (error)
+ return error;
+
v4l2_info(sd, "%s found @ 0x%x (%s)\n", client->name,
client->addr << 1, client->adapter->name);
@@ -526,12 +532,13 @@ static int ths8200_probe(struct i2c_client *client,
static int ths8200_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ths8200_state *decoder = to_state(sd);
v4l2_dbg(1, debug, sd, "%s removed @ 0x%x (%s)\n", client->name,
client->addr << 1, client->adapter->name);
ths8200_s_power(sd, false);
-
+ v4l2_async_unregister_subdev(&decoder->sd);
v4l2_device_unregister_subdev(sd);
return 0;