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From: Michael Walle <mwalle@kernel.org>
Date: Mon, 06 May 2024 15:34:37 +0200
Subject: [PATCH 08/20] drm/bridge: tc358775: remove error message if
 regulator is missing
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Message-Id: <20240506-tc358775-fix-powerup-v1-8-545dcf00b8dd@kernel.org>
References: <20240506-tc358775-fix-powerup-v1-0-545dcf00b8dd@kernel.org>
In-Reply-To: <20240506-tc358775-fix-powerup-v1-0-545dcf00b8dd@kernel.org>
To: Andrzej Hajda <andrzej.hajda@intel.com>, 
 Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>, 
 Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, 
 Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>, 
 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, 
 Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, 
 David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, 
 Chun-Kuang Hu <chunkuang.hu@kernel.org>, 
 Philipp Zabel <p.zabel@pengutronix.de>, 
 Matthias Brugger <matthias.bgg@gmail.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>, 
 Sam Ravnborg <sam@ravnborg.org>, Vinay Simha BN <simhavcs@gmail.com>, 
 Tony Lindgren <tony@atomide.com>
Cc: Daniel Semkowicz <dse@thaumatec.com>, dri-devel@lists.freedesktop.org, 
 linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, 
 linux-arm-kernel@lists.infradead.org, Michael Walle <mwalle@kernel.org>

A missing regulator node will automatically be replaced by a dummy. Thus
regulators are optional anyway. Remove the error message.

Signed-off-by: Michael Walle <mwalle@kernel.org>
---
 drivers/gpu/drm/bridge/tc358775.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358775.c b/drivers/gpu/drm/bridge/tc358775.c
index b7f15164e655..54aea58a3406 100644
--- a/drivers/gpu/drm/bridge/tc358775.c
+++ b/drivers/gpu/drm/bridge/tc358775.c
@@ -675,18 +675,12 @@ static int tc_probe(struct i2c_client *client)
 		return ret;
 
 	tc->vddio = devm_regulator_get(dev, "vddio");
-	if (IS_ERR(tc->vddio)) {
-		ret = PTR_ERR(tc->vddio);
-		dev_err(dev, "vddio-supply not found\n");
-		return ret;
-	}
+	if (IS_ERR(tc->vddio))
+		return PTR_ERR(tc->vddio);
 
 	tc->vdd = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(tc->vdd)) {
-		ret = PTR_ERR(tc->vdd);
-		dev_err(dev, "vdd-supply not found\n");
-		return ret;
-	}
+	if (IS_ERR(tc->vdd))
+		return PTR_ERR(tc->vdd);
 
 	tc->stby_gpio = devm_gpiod_get_optional(dev, "stby", GPIOD_OUT_HIGH);
 	if (IS_ERR(tc->stby_gpio))

-- 
2.39.2