linux-kernel - [PATCH v2 2/6] drm/bridge: anx6345: don't print error message if regulator is not ready

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Date:   Wed, 26 Feb 2020 00:10:07 -0800
From:   Vasily Khoruzhick <anarsoul@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <maxime@...no.tech>,
        Chen-Yu Tsai <wens@...e.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Torsten Duwe <duwe@...e.de>, Icenowy Zheng <icenowy@...c.io>,
        Heiko Stuebner <heiko.stuebner@...obroma-systems.com>,
        Stephan Gerhold <stephan@...hold.net>,
        Mark Brown <broonie@...nel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Samuel Holland <samuel@...lland.org>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Vasily Khoruzhick <anarsoul@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: [PATCH v2 2/6] drm/bridge: anx6345: don't print error message if regulator is not ready

We don't want to print scary message if devm_regulator_get() returns
-EPROBE_DEFER

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com>
---
 drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
index 0d8d083b0207..0bf81b9b5faa 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
@@ -714,14 +714,18 @@ static int anx6345_i2c_probe(struct i2c_client *client,
 	/* 1.2V digital core power regulator  */
 	anx6345->dvdd12 = devm_regulator_get(dev, "dvdd12");
 	if (IS_ERR(anx6345->dvdd12)) {
-		DRM_ERROR("dvdd12-supply not found\n");
+		if (PTR_ERR(anx6345->dvdd12) != -EPROBE_DEFER)
+			DRM_ERROR("Failed to get dvdd12 supply (%ld)\n",
+				  PTR_ERR(anx6345->dvdd12));
 		return PTR_ERR(anx6345->dvdd12);
 	}
 
 	/* 2.5V digital core power regulator  */
 	anx6345->dvdd25 = devm_regulator_get(dev, "dvdd25");
 	if (IS_ERR(anx6345->dvdd25)) {
-		DRM_ERROR("dvdd25-supply not found\n");
+		if (PTR_ERR(anx6345->dvdd25) != -EPROBE_DEFER)
+			DRM_ERROR("Failed to get dvdd25 supply (%ld)\n",
+				  PTR_ERR(anx6345->dvdd25));
 		return PTR_ERR(anx6345->dvdd25);
 	}
 
-- 
2.25.0