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.Dudau@arm.com Cc: Russell King rmk+kernel@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;