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drm/bridge: adv7511: use update latch for AVI infoframes

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Instead of disabling and then reenabling AVI infoframe, use the
recommended way of updating it on the fly: latch current values using
the ADV7511_REG_INFOFRAME_UPDATE register.

Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250903-adv7511-audio-infoframe-v1-1-05b24459b9a4@oss.qualcomm.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
This commit is contained in:
Dmitry Baryshkov 2025-09-03 19:21:28 +03:00
parent e4aae21c92
commit 723a170811
1 changed files with 13 additions and 2 deletions
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15
drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
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@ -916,22 +916,33 @@ static int adv7511_bridge_hdmi_write_infoframe(struct drm_bridge *bridge,
{
struct adv7511 *adv7511 = bridge_to_adv7511(bridge);
adv7511_bridge_hdmi_clear_infoframe(bridge, type);
switch (type) {
case HDMI_INFOFRAME_TYPE_AVI:
/* send current AVI infoframe values while updating */
regmap_update_bits(adv7511->regmap, ADV7511_REG_INFOFRAME_UPDATE,
BIT(6), BIT(6));
/* The AVI infoframe id is not configurable */
regmap_bulk_write(adv7511->regmap, ADV7511_REG_AVI_INFOFRAME_VERSION,
buffer + 1, len - 1);
regmap_write(adv7511->regmap, ADV7511_REG_AUDIO_INFOFRAME_LENGTH, 0x2);
regmap_write(adv7511->regmap, ADV7511_REG_AUDIO_INFOFRAME(1), 0x1);
/* use AVI infoframe updated info */
regmap_update_bits(adv7511->regmap, ADV7511_REG_INFOFRAME_UPDATE,
BIT(6), 0);
adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
break;
case HDMI_INFOFRAME_TYPE_SPD:
adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_SPD);
regmap_bulk_write(adv7511->regmap_packet, ADV7511_PACKET_SPD(0),
buffer, len);
adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_SPD);
break;
case HDMI_INFOFRAME_TYPE_VENDOR:
adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_SPARE1);
regmap_bulk_write(adv7511->regmap_packet, ADV7511_PACKET_SPARE1(0),
buffer, len);
adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_SPARE1);