[PATCH v3 15/23] v4l: fwnode: Use default parallel flags

[jacopo mondi]

Hi Sakari,

On Thu, Sep 13, 2018 at 12:29:34AM +0300, Sakari Ailus wrote:
> The caller may provide default flags for the endpoint. Change the
> configuration based on what is available through the fwnode property API.
>
> Signed-off-by: Sakari Ailus <sakari.ailus at linux.intel.com>
> Tested-by: Steve Longerbeam <steve_longerbeam at mentor.com>

Reviewed-by: Jacopo Mondi <jacopo+renesas at jmondi.org>

Thanks
  j
> ---
>  drivers/media/v4l2-core/v4l2-fwnode.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
>
> diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
> index bdb0a355b66b..de4a43765ac2 100644
> --- a/drivers/media/v4l2-core/v4l2-fwnode.c
> +++ b/drivers/media/v4l2-core/v4l2-fwnode.c
> @@ -183,31 +183,44 @@ static void v4l2_fwnode_endpoint_parse_parallel_bus(
>  	unsigned int flags = 0;
>  	u32 v;
>
> +	if (bus_type == V4L2_MBUS_PARALLEL || bus_type == V4L2_MBUS_BT656)
> +		flags = bus->flags;
> +
>  	if (!fwnode_property_read_u32(fwnode, "hsync-active", &v)) {
> +		flags &= ~(V4L2_MBUS_HSYNC_ACTIVE_HIGH |
> +			   V4L2_MBUS_HSYNC_ACTIVE_LOW);
>  		flags |= v ? V4L2_MBUS_HSYNC_ACTIVE_HIGH :
>  			V4L2_MBUS_HSYNC_ACTIVE_LOW;
>  		pr_debug("hsync-active %s\n", v ? "high" : "low");
>  	}
>
>  	if (!fwnode_property_read_u32(fwnode, "vsync-active", &v)) {
> +		flags &= ~(V4L2_MBUS_VSYNC_ACTIVE_HIGH |
> +			   V4L2_MBUS_VSYNC_ACTIVE_LOW);
>  		flags |= v ? V4L2_MBUS_VSYNC_ACTIVE_HIGH :
>  			V4L2_MBUS_VSYNC_ACTIVE_LOW;
>  		pr_debug("vsync-active %s\n", v ? "high" : "low");
>  	}
>
>  	if (!fwnode_property_read_u32(fwnode, "field-even-active", &v)) {
> +		flags &= ~(V4L2_MBUS_FIELD_EVEN_HIGH |
> +			   V4L2_MBUS_FIELD_EVEN_LOW);
>  		flags |= v ? V4L2_MBUS_FIELD_EVEN_HIGH :
>  			V4L2_MBUS_FIELD_EVEN_LOW;
>  		pr_debug("field-even-active %s\n", v ? "high" : "low");
>  	}
>
>  	if (!fwnode_property_read_u32(fwnode, "pclk-sample", &v)) {
> +		flags &= ~(V4L2_MBUS_PCLK_SAMPLE_RISING |
> +			   V4L2_MBUS_PCLK_SAMPLE_FALLING);
>  		flags |= v ? V4L2_MBUS_PCLK_SAMPLE_RISING :
>  			V4L2_MBUS_PCLK_SAMPLE_FALLING;
>  		pr_debug("pclk-sample %s\n", v ? "high" : "low");
>  	}
>
>  	if (!fwnode_property_read_u32(fwnode, "data-active", &v)) {
> +		flags &= ~(V4L2_MBUS_PCLK_SAMPLE_RISING |
> +			   V4L2_MBUS_PCLK_SAMPLE_FALLING);
>  		flags |= v ? V4L2_MBUS_DATA_ACTIVE_HIGH :
>  			V4L2_MBUS_DATA_ACTIVE_LOW;
>  		pr_debug("data-active %s\n", v ? "high" : "low");
> @@ -215,8 +228,10 @@ static void v4l2_fwnode_endpoint_parse_parallel_bus(
>
>  	if (fwnode_property_present(fwnode, "slave-mode")) {
>  		pr_debug("slave mode\n");
> +		flags &= ~V4L2_MBUS_MASTER;
>  		flags |= V4L2_MBUS_SLAVE;
>  	} else {
> +		flags &= ~V4L2_MBUS_SLAVE;
>  		flags |= V4L2_MBUS_MASTER;
>  	}
>
> @@ -231,12 +246,16 @@ static void v4l2_fwnode_endpoint_parse_parallel_bus(
>  	}
>
>  	if (!fwnode_property_read_u32(fwnode, "sync-on-green-active", &v)) {
> +		flags &= ~(V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH |
> +			   V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW);
>  		flags |= v ? V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH :
>  			V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW;
>  		pr_debug("sync-on-green-active %s\n", v ? "high" : "low");
>  	}
>
>  	if (!fwnode_property_read_u32(fwnode, "data-enable-active", &v)) {
> +		flags &= ~(V4L2_MBUS_DATA_ENABLE_HIGH |
> +			   V4L2_MBUS_DATA_ENABLE_LOW);
>  		flags |= v ? V4L2_MBUS_DATA_ENABLE_HIGH :
>  			V4L2_MBUS_DATA_ENABLE_LOW;
>  		pr_debug("data-enable-active %s\n", v ? "high" : "low");
> --
> 2.11.0
>
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