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authorMauro Carvalho Chehab <mchehab@redhat.com>2009-07-14 03:14:21 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-07-24 14:03:25 -0300
commit2ea472ff704a8a94b3b9abec438db23e512be337 (patch)
treeea423311335a63195a667217f66cc5da2bdcf455 /drivers/media
parentc180604a87c5abb0a117998009d01a4499d58653 (diff)
V4L/DVB (12242): mt9v011: implement core->s_config to allow adjusting xtal frequency
Since frames per second is a function of cristal frequency, and this is device-specific, add a function that allows adjusting it, via subdev->core->s_config callback. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/mt9v011.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/media/video/mt9v011.c b/drivers/media/video/mt9v011.c
index d7b15dd836e..b2260de645f 100644
--- a/drivers/media/video/mt9v011.c
+++ b/drivers/media/video/mt9v011.c
@@ -340,6 +340,22 @@ static int mt9v011_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
return 0;
}
+static int mt9v011_s_config(struct v4l2_subdev *sd, int dumb, void *data)
+{
+ struct mt9v011 *core = to_mt9v011(sd);
+ unsigned *xtal = data;
+
+ v4l2_dbg(1, debug, sd, "s_config called\n");
+
+ if (xtal) {
+ core->xtal = *xtal;
+ v4l2_dbg(1, debug, sd, "xtal set to %d.%03d MHz\n",
+ *xtal / 1000000, (*xtal / 1000) % 1000);
+ }
+
+ return 0;
+}
+
#ifdef CONFIG_VIDEO_ADV_DEBUG
static int mt9v011_g_register(struct v4l2_subdev *sd,
@@ -388,6 +404,7 @@ static const struct v4l2_subdev_core_ops mt9v011_core_ops = {
.g_ctrl = mt9v011_g_ctrl,
.s_ctrl = mt9v011_s_ctrl,
.reset = mt9v011_reset,
+ .s_config = mt9v011_s_config,
.g_chip_ident = mt9v011_g_chip_ident,
#ifdef CONFIG_VIDEO_ADV_DEBUG
.g_register = mt9v011_g_register,