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gpu: ipu-csi: Check for field type alternate 

When the CSI is receiving from a bt.656 bus, include a check for
field type 'alternate' when determining whether to set CSI clock
mode to CCIR656_INTERLACED or CCIR656_PROGRESSIVE.

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Steve Longerbeam 2018-05-31 17:30:41 -07:00 committed by Philipp Zabel
parent c80d673b91
commit bbe4a089e2
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/ipu-v3/ipu-csi.c
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@ -339,7 +339,8 @@ static void fill_csi_bus_cfg(struct ipu_csi_bus_config *csicfg,
break;
case V4L2_MBUS_BT656:
csicfg->ext_vsync = 0;
if (V4L2_FIELD_HAS_BOTH(mbus_fmt->field))
if (V4L2_FIELD_HAS_BOTH(mbus_fmt->field) ||
mbus_fmt->field == V4L2_FIELD_ALTERNATE)
csicfg->clk_mode = IPU_CSI_CLK_MODE_CCIR656_INTERLACED;
else
csicfg->clk_mode = IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE;