From: Sen Wang <sen@ti.com>
To: <ple@baylibre.com>, <neil.armstrong@linaro.org>
Cc: <andrzej.hajda@intel.com>, <rfoss@kernel.org>,
<Laurent.pinchart@ideasonboard.com>, <jonas@kwiboo.se>,
<jernej.skrabec@gmail.com>, <devarsht@ti.com>, <s-jain1@ti.com>,
<j-sahu@ti.com>, <dri-devel@lists.freedesktop.org>,
<linux-kernel@vger.kernel.org>, Sen Wang <sen@ti.com>
Subject: [PATCH] drm/bridge: ite-it66121: Disable HDMI audio capture stream
Date: Thu, 12 Mar 2026 14:33:55 -0500 [thread overview]
Message-ID: <20260312193355.1348842-1-sen@ti.com> (raw)
The IT66121 is an HDMI transmitter and does not support audio capture.
However, the driver registers hdmi-codec without setting no_i2s_capture,
causing the codec to advertise a non-functional capture stream. Userspace
audio servers such as PulseAudio then attempt to open this capture
device, resulting in errors.
Set no_i2s_capture and no_spdif_capture in hdmi_codec_pdata so that the
hdmi-codec driver only registers playback, matching the actual hardware
capability.
Signed-off-by: Sen Wang <sen@ti.com>
---
drivers/gpu/drm/bridge/ite-it66121.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index 329fa47a5701..a1b2c3d4e5f6 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -1476,6 +1476,8 @@ static int it66121_audio_codec_init(struct it66121_ctx *ctx, struct device *dev)
.i2s = 1, /* Only i2s support for now */
.spdif = 0,
.max_i2s_channels = 8,
+ .no_i2s_capture = 1,
+ .no_spdif_capture = 1,
.no_capture_mute = 1,
};
--
2.34.1
next reply other threads:[~2026-03-12 19:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-12 19:33 Sen Wang [this message]
2026-03-13 3:51 ` Claude review: drm/bridge: ite-it66121: Disable HDMI audio capture stream Claude Code Review Bot
2026-03-13 3:51 ` Claude Code Review Bot
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