[PATCH 12/15] drm/sun4i: tcon: multiply the vtotal when not in interlace
From: Maxime Ripard <hidden>
Date: 2017-03-07 09:29:44
Also in:
dri-devel, linux-arm-kernel, linux-clk, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for allwinner a10, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Chen-Yu Tsai, Linus Torvalds
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-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> --- 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 */
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