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drm/i2c: tda998x: increase the supported dotclock frequency to 165MHz for TDA19988 

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>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Liviu Dudau (ARM) 2015-11-23 16:52:41 +01:00 committed by Russell King
parent debd15ced9
commit e4618c467d
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/i2c/tda998x_drv.c
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@ -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;