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From: matthias.bgg@kernel.org
To: robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com,
	p.zabel@pengutronix.de, airlied@linux.ie,
	mturquette@baylibre.com, sboyd@kernel.org,
	ulrich.hecht+renesas@gmail.com,
	laurent.pinchart@ideasonboard.com, enric.balletbo@collabora.com
Cc: devicetree@vger.kernel.org, drinkcat@chromium.org,
	Minghsiu Tsai <minghsiu.tsai@mediatek.com>,
	frank-w@public-files.de, sean.wang@mediatek.com,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Houlong Wei <houlong.wei@mediatek.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	wens@csie.org, Matthias Brugger <mbrugger@suse.com>,
	linux-mediatek@lists.infradead.org, rdunlap@infradead.org,
	matthias.bgg@kernel.org,
	Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
	hsinyi@chromium.org, Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-media@vger.kernel.org
Subject: [PATCH v7 06/13] media: mtk-mdp: Check return value of of_clk_get
Date: Thu, 13 Feb 2020 21:19:46 +0100
Message-ID: <20200213201953.15268-7-matthias.bgg@kernel.org> (raw)
In-Reply-To: <20200213201953.15268-1-matthias.bgg@kernel.org>

From: Matthias Brugger <mbrugger@suse.com>

Check the return value of of_clk_get and print an error
message if not EPROBE_DEFER.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>

---

Changes in v7:
- fix check of return value of of_clk_get
- fix identation

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
index 0c4788af78dd..58abfbdfb82d 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
@@ -110,6 +110,12 @@ int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
 
 	for (i = 0; i < ARRAY_SIZE(comp->clk); i++) {
 		comp->clk[i] = of_clk_get(node, i);
+		if (IS_ERR(comp->clk[i])) {
+			if (PTR_ERR(comp->clk[i]) != -EPROBE_DEFER)
+				dev_err(dev, "Failed to get clock\n");
+
+			return PTR_ERR(comp->clk[i]);
+		}
 
 		/* Only RDMA needs two clocks */
 		if (comp->type != MTK_MDP_RDMA)
-- 
2.24.1


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  parent reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13 20:19 [PATCH v7 00/13] arm/arm64: mediatek: Fix mmsys device probing matthias.bgg
2020-02-13 20:19 ` [PATCH v7 01/13] dt-bindings: arm: move mmsys description to display matthias.bgg
2020-02-14  6:42   ` CK Hu
2020-02-14 10:01     ` Matthias Brugger
2020-02-14 12:19       ` Enric Balletbo i Serra
2020-02-14 16:22         ` CK Hu
2020-02-13 20:19 ` [PATCH v7 02/13] dt-bindings: display: mediatek: Add mmsys binding description matthias.bgg
2020-02-18 20:31   ` Rob Herring
2020-02-13 20:19 ` [PATCH v7 03/13] dt-bindings: mediatek: Add compatible for mt7623 matthias.bgg
2020-02-13 20:19 ` [PATCH v7 04/13] drm/mediatek: Use regmap for register access matthias.bgg
2020-02-13 20:19 ` [PATCH v7 05/13] drm: mediatek: Omit warning on probe defers matthias.bgg
2020-02-13 20:19 ` matthias.bgg [this message]
2020-02-24 17:36   ` [PATCH v7 06/13] media: mtk-mdp: Check return value of of_clk_get Hans Verkuil
2020-02-24 21:47     ` Matthias Brugger
2020-02-13 20:19 ` [PATCH v7 07/13] clk: mediatek: mt2701: switch mmsys to platform device probing matthias.bgg
2020-02-13 20:19 ` [PATCH v7 08/13] clk: mediatek: mt2712e: switch " matthias.bgg
2020-02-13 20:19 ` [PATCH v7 09/13] clk: mediatek: mt6779: switch mmsys " matthias.bgg
2020-02-13 20:19 ` [PATCH v7 10/13] clk: mediatek: mt6797: switch " matthias.bgg
2020-02-13 20:19 ` [PATCH v7 11/13] clk: mediatek: mt8183: switch mmsys " matthias.bgg
2020-02-14  1:52   ` CK Hu
2020-02-13 20:19 ` [PATCH v7 12/13] clk: mediatek: mt8173: " matthias.bgg
2020-02-13 20:19 ` [PATCH v7 13/13] drm/mediatek: Add support for mmsys through a pdev matthias.bgg

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