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Subject[PATCH 12/15] drm/sun4i: tcon: multiply the vtotal when not in interlace
Date
It appears that the total vertical resolution needs to be doubled when
we're not in interlaced. Make sure that is the case.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index e44217fb4f6f..515fa56c1e6a 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -248,10 +248,13 @@ void sun4i_tcon1_mode_set(struct sun4i_tcon *tcon, struct drm_encoder *encoder,
SUN4I_TCON1_BASIC3_H_BACKPORCH(bp));

bp = mode->crtc_vtotal - mode->crtc_vsync_start;
+ val = mode->crtc_vtotal;
+ if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
+ val = val * 2;
DRM_DEBUG_DRIVER("Setting vertical total %d, backporch %d\n",
mode->vtotal, bp);
regmap_write(tcon->regs, SUN4I_TCON1_BASIC4_REG,
- SUN4I_TCON1_BASIC4_V_TOTAL(mode->vtotal) |
+ SUN4I_TCON1_BASIC4_V_TOTAL(val) |
SUN4I_TCON1_BASIC4_V_BACKPORCH(bp));

/* Set Hsync and Vsync length */
--
git-series 0.8.11
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