Commit 70da92e5 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mauro Carvalho Chehab
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V4L/DVB (13669): tw9910: Add sync polarity support 



Signed-off-by: default avatarKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent c1d7b06c

drivers/media/video/tw9910.c

+12 −2
Original line number Diff line number Diff line
@@ -512,12 +512,21 @@ static int tw9910_set_bus_param(struct soc_camera_device *icd, 
{

	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 @@ static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd) 
	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);