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video: of: display_timing: Add support for syncclk-active property
Configure the DISPLAY_FLAGS_SYNC_POSEDGE/NEGEDGE flags according to the binding document. If the syncclk-active is present in DT, configure the flags accordingly, if it is omitted it means that the SYNC edge is following the pixdata configuration. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> CC: Rob Herring <robh+dt@kernel.org> CC: Mark Rutland <mark.rutland@arm.com> CC: devicetree@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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@ -88,6 +88,15 @@ static int of_parse_display_timing(const struct device_node *np,
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dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE :
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DISPLAY_FLAGS_PIXDATA_NEGEDGE;
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if (!of_property_read_u32(np, "syncclk-active", &val))
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dt->flags |= val ? DISPLAY_FLAGS_SYNC_POSEDGE :
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DISPLAY_FLAGS_SYNC_NEGEDGE;
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else if (dt->flags & (DISPLAY_FLAGS_PIXDATA_POSEDGE |
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DISPLAY_FLAGS_PIXDATA_NEGEDGE))
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dt->flags |= dt->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE ?
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DISPLAY_FLAGS_SYNC_POSEDGE :
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DISPLAY_FLAGS_SYNC_NEGEDGE;
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if (of_property_read_bool(np, "interlaced"))
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dt->flags |= DISPLAY_FLAGS_INTERLACED;
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if (of_property_read_bool(np, "doublescan"))
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