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| author | Mauro Carvalho Chehab | 2009-07-14 08:14:21 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2009-07-24 19:03:25 +0200 |
| commit | 2ea472ff704a8a94b3b9abec438db23e512be337 (patch) | |
| tree | ea423311335a63195a667217f66cc5da2bdcf455 /drivers/media/video | |
| parent | V4L/DVB (12241): mt9v011: Fix vstart (diff) | |
| download | kernel-qcow2-linux-2ea472ff704a8a94b3b9abec438db23e512be337.tar.gz kernel-qcow2-linux-2ea472ff704a8a94b3b9abec438db23e512be337.tar.xz kernel-qcow2-linux-2ea472ff704a8a94b3b9abec438db23e512be337.zip | |
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/video')
| -rw-r--r-- | drivers/media/video/mt9v011.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/media/video/mt9v011.c b/drivers/media/video/mt9v011.c index d7b15dd836e6..b2260de645f0 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, |