linux-kernel - [PATCH v2 2/3] ASoC: hdac_hdmi: Use dev

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Message-ID: <20250722195437.1347865-3-detlev.casanova@collabora.com>
Date: Tue, 22 Jul 2025 15:54:36 -0400
From: Detlev Casanova <detlev.casanova@...labora.com>
To: linux-kernel@...r.kernel.org
Cc: Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
	Detlev Casanova <detlev.casanova@...labora.com>,
	Douglas Anderson <dianders@...omium.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Sugar Zhang <sugar.zhang@...k-chips.com>,
	Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
	Charles Keepax <ckeepax@...nsource.cirrus.com>,
	Raag Jadav <raag.jadav@...el.com>,
	dri-devel@...ts.freedesktop.org,
	linux-sound@...r.kernel.org,
	kernel@...labora.com
Subject: [PATCH v2 2/3] ASoC: hdac_hdmi: Use dev_info on invalid ELD version

When disconnected, the ELD data cannot be read by the display driver, so
it just sets the data to 0.

That makes the ELD parsing code read an ELD version of 0, which is
invalid. In hdac_hdmi, that is logged with dev_err(), but should be
logged with dev_info() instead as it is done in sound/core/pcm_drm_eld.c

This avoids printing multiple messages like:

    HDMI: Unknown ELD version 0

in the kernel log when userspace tries to open the sound device.

Signed-off-by: Detlev Casanova <detlev.casanova@...labora.com>
---
 sound/soc/codecs/hdac_hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index 1139a2754ca33..4cc3b7a1062bd 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -1232,7 +1232,7 @@ static int hdac_hdmi_parse_eld(struct hdac_device *hdev,
 						>> DRM_ELD_VER_SHIFT;
 
 	if (ver != ELD_VER_CEA_861D && ver != ELD_VER_PARTIAL) {
-		dev_err(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
+		dev_info(&hdev->dev, "HDMI: Unknown ELD version %d\n", ver);
 		return -EINVAL;
 	}
 
-- 
2.50.1