diff options
Diffstat (limited to 'drivers/media/video/soc_mediabus.c')
| -rw-r--r-- | drivers/media/video/soc_mediabus.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/media/video/soc_mediabus.c b/drivers/media/video/soc_mediabus.c index bea7c9cf4f88..cf7f2194ded4 100644 --- a/drivers/media/video/soc_mediabus.c +++ b/drivers/media/video/soc_mediabus.c @@ -383,6 +383,39 @@ const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc( } EXPORT_SYMBOL(soc_mbus_get_fmtdesc); +unsigned int soc_mbus_config_compatible(const struct v4l2_mbus_config *cfg, + unsigned int flags) +{ + unsigned long common_flags; + bool hsync = true, vsync = true, pclk, data, mode; + bool mipi_lanes, mipi_clock; + + common_flags = cfg->flags & flags; + + switch (cfg->type) { + case V4L2_MBUS_PARALLEL: + hsync = common_flags & (V4L2_MBUS_HSYNC_ACTIVE_HIGH | + V4L2_MBUS_HSYNC_ACTIVE_LOW); + vsync = common_flags & (V4L2_MBUS_VSYNC_ACTIVE_HIGH | + V4L2_MBUS_VSYNC_ACTIVE_LOW); + case V4L2_MBUS_BT656: + pclk = common_flags & (V4L2_MBUS_PCLK_SAMPLE_RISING | + V4L2_MBUS_PCLK_SAMPLE_FALLING); + data = common_flags & (V4L2_MBUS_DATA_ACTIVE_HIGH | + V4L2_MBUS_DATA_ACTIVE_LOW); + mode = common_flags & (V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE); + return (!hsync || !vsync || !pclk || !data || !mode) ? + 0 : common_flags; + case V4L2_MBUS_CSI2: + mipi_lanes = common_flags & V4L2_MBUS_CSI2_LANES; + mipi_clock = common_flags & (V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK | + V4L2_MBUS_CSI2_CONTINUOUS_CLOCK); + return (!mipi_lanes || !mipi_clock) ? 0 : common_flags; + } + return 0; +} +EXPORT_SYMBOL(soc_mbus_config_compatible); + static int __init soc_mbus_init(void) { return 0; |