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drm/i2c: tda998x: add vendor specific infoframe support

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Add support for the vendor specific infoframe.

Reviewed-by: Brian Starkey <brian.starkey@arm.com>
Tested-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2018-12-05 15:51:45 +00:00
parent fcc22c5f9d
commit 45a19dd397
1 changed files with 14 additions and 0 deletions
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14
drivers/gpu/drm/i2c/tda998x_drv.c
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@ -877,6 +877,19 @@ 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,
const 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 const struct tda998x_audio_route tda998x_audio_route[AUDIO_ROUTE_NUM] = {
@ -1654,6 +1667,7 @@ static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
reg_set(priv, REG_TX33, TX33_HDMI);
tda998x_write_avi(priv, adjusted_mode);
tda998x_write_vsi(priv, adjusted_mode);
if (priv->sink_has_audio)
tda998x_configure_audio(priv);