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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2016-09-22 12:35:26 +0200 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2016-11-02 09:48:18 +0100 |
| commit | bd9642b9b8d329bcb0b187aee34c89fc182f2c4d (patch) | |
| tree | ce0386e0ce0deda300830fe8deaf2fde5b221074 /drivers/video | |
| parent | video: display_timing: Add flags to select the edge when the sync is driven (diff) | |
| download | linux-bd9642b9b8d329bcb0b187aee34c89fc182f2c4d.tar.xz linux-bd9642b9b8d329bcb0b187aee34c89fc182f2c4d.zip | |
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>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/of_display_timing.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c index 8a1076beecd3..db992c684f09 100644 --- a/drivers/video/of_display_timing.c +++ b/drivers/video/of_display_timing.c @@ -88,6 +88,15 @@ static int of_parse_display_timing(const struct device_node *np, dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE : 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")) dt->flags |= DISPLAY_FLAGS_INTERLACED; if (of_property_read_bool(np, "doublescan")) |