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drm/bridge: sii902x: add FIELD2_OFST config

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The reg FIELD2_OFST should be half the number of pixel/line
in interlace mode.

Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Change-Id: I3b0de9199768d965a945bf5db5a0902f2103e30e
This commit is contained in:
Damon Ding 2023-01-15 18:56:19 +08:00 committed by Tao Huang
parent 83274139e2
commit cc49e88e80
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/bridge/sii902x.c
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@ -473,8 +473,13 @@ static void sii902x_set_embedded_sync(struct sii902x *sii902x)
drm_display_mode_to_videomode(&sii902x->mode, &vm);
data[0] = vm.hfront_porch & 0xff;
data[1] = (vm.hfront_porch >> 8) & 0x03;
data[2] = 0;
data[3] = 0;
if (sii902x->mode.flags & DRM_MODE_FLAG_INTERLACE) {
data[2] = (sii902x->mode.vtotal >> 1) & 0xff;
data[3] = ((sii902x->mode.vtotal >> 1) >> 8) & 0x1f;
} else {
data[2] = 0;
data[3] = 0;
}
data[4] = vm.hsync_len & 0xff;
data[5] = (vm.hsync_len >> 8) & 0x03;
data[6] = vm.vfront_porch;