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video: of: display_timing: Add support for syncclk-active property

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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>
This commit is contained in:
Peter Ujfalusi 2016-09-22 13:35:26 +03:00 committed by Tomi Valkeinen
parent e886fecbe7
commit bd9642b9b8
1 changed files with 9 additions and 0 deletions
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9
drivers/video/of_display_timing.c
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@ -88,6 +88,15 @@ static int of_parse_display_timing(const struct device_node *np,
dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE : dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE :
DISPLAY_FLAGS_PIXDATA_NEGEDGE; DISPLAY_FLAGS_PIXDATA_NEGEDGE;
if (!of_property_read_u32(np, "syncclk-active", &val))
dt->flags |= val ? DISPLAY_FLAGS_SYNC_POSEDGE :
DISPLAY_FLAGS_SYNC_NEGEDGE;
else if (dt->flags & (DISPLAY_FLAGS_PIXDATA_POSEDGE |
DISPLAY_FLAGS_PIXDATA_NEGEDGE))
dt->flags |= dt->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE ?
DISPLAY_FLAGS_SYNC_POSEDGE :
DISPLAY_FLAGS_SYNC_NEGEDGE;
if (of_property_read_bool(np, "interlaced")) if (of_property_read_bool(np, "interlaced"))
dt->flags |= DISPLAY_FLAGS_INTERLACED; dt->flags |= DISPLAY_FLAGS_INTERLACED;
if (of_property_read_bool(np, "doublescan")) if (of_property_read_bool(np, "doublescan"))