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Subject[PATCH 2/3] drm/i2c: tda998x: Increase the supported dotclock frequency to 165MHz for TDA19988.
Date
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;
--
2.6.0


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