Spec sheet states that the TDA19988 supports up to 165MHz dotclock speeds.
Without this change modes higher than 1080p are un-attainable.
Signed-off-by: Liviu Dudau <liviu.du...@arm.com>
Cc: Russell King <rmk+ker...@arm.linux.org.uk>
---
drivers/gpu/drm/i2c/tda998x_drv.c | 5 +++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c
b/drivers/gpu/drm/i2c/tda998x_drv.c
index cdbd83b..a9c8ee8 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -878,7 +878,10 @@ tda998x_encoder_mode_fixup(struct drm_encoder *encoder,
static int tda998x_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
- if (mode->clock > 150000)
+ /* TDA19988 dotclock can go up to 165MHz */
+ struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
+
+ if (mode->clock > ((priv->rev == TDA19988) ? 165000 : 150000))
return MODE_CLOCK_HIGH;
if (mode->htotal >= BIT(13))
return MODE_BAD_HVALUE;
--
2.6.0
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