Add support for the vendor specific infoframe.
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i2c/tda998x_drv.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index dad7396ebe2b..b0ed2ef49c62 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -874,6 +874,19 @@ tda998x_write_avi(struct tda998x_priv *priv, const struct drm_display_mode *mode
tda998x_write_if(priv, DIP_IF_FLAGS_IF2, REG_IF2_HB0, &frame);
}
+static void tda998x_write_vsi(struct tda998x_priv *priv,
+ struct drm_display_mode *mode)
+{
+ union hdmi_infoframe frame;
+
+ if (drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi,
+ &priv->connector,
+ mode))
+ reg_clear(priv, REG_DIP_IF_FLAGS, DIP_IF_FLAGS_IF1);
+ else
+ tda998x_write_if(priv, DIP_IF_FLAGS_IF1, REG_IF1_HB0, &frame);
+}
+
/* Audio support */
static void tda998x_audio_mute(struct tda998x_priv *priv, bool on)
@@ -1572,6 +1585,7 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
tda998x_write_avi(priv, adjusted_mode);
tda998x_write_spd(priv);
+ tda998x_write_vsi(priv, adjusted_mode);
if (priv->audio_params.format != AFMT_UNUSED &&
priv->sink_has_audio)
--
2.7.4
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