The patch number 13669 was added via Guennadi Liakhovetski
<g.liakhovet...@gmx.de>
to http://linuxtv.org/hg/v4l-dvb master development tree.
Kernel patches in this development tree may be modified to be backward
compatible with older kernels. Compatibility modifications will be
removed before inclusion into the mainstream Kernel
If anyone has any objections, please let us know by sending a message to:
Linux Media Mailing List <linux-me...@vger.kernel.org>
------
From: Kuninori Morimoto <morimoto.kunin...@renesas.com>
tw9910: Add sync polarity support
Signed-off-by: Kuninori Morimoto <morimoto.kunin...@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
---
drivers/media/video/tw9910.c | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)
---
linux/drivers/media/video/tw9910.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff -r c141cc75045a -r 750376b279e0 linux/drivers/media/video/tw9910.c
--- a/linux/drivers/media/video/tw9910.c Fri Dec 11 15:53:55 2009 +0100
+++ b/linux/drivers/media/video/tw9910.c Fri Dec 11 15:53:55 2009 +0100
@@ -512,12 +512,21 @@
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct i2c_client *client = sd->priv;
+ u8 val = VSSL_VVALID | HSSL_DVALID;
/*
* set OUTCTR1
+ *
+ * We use VVALID and DVALID signals to control VSYNC and HSYNC
+ * outputs, in this mode their polarity is inverted.
*/
- return i2c_smbus_write_byte_data(client, OUTCTR1,
- VSSL_VVALID | HSSL_DVALID);
+ if (flags & SOCAM_HSYNC_ACTIVE_LOW)
+ val |= HSP_HI;
+
+ if (flags & SOCAM_VSYNC_ACTIVE_LOW)
+ val |= VSP_HI;
+
+ return i2c_smbus_write_byte_data(client, OUTCTR1, val);
}
static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd)
@@ -527,6 +536,7 @@
struct soc_camera_link *icl = to_soc_camera_link(icd);
unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER |
SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH |
+ SOCAM_VSYNC_ACTIVE_LOW | SOCAM_HSYNC_ACTIVE_LOW |
SOCAM_DATA_ACTIVE_HIGH | priv->info->buswidth;
return soc_camera_apply_sensor_flags(icl, flags);
---
Patch is available at:
http://linuxtv.org/hg/v4l-dvb/rev/750376b279e0805f2a6e39bc3de99fbc68c348b7
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