From: Bo-Chen Chen <rex-bc.chen@mediatek.com>
To: <chunkuang.hu@kernel.org>, <p.zabel@pengutronix.de>,
<daniel@ffwll.ch>, <robh+dt@kernel.org>,
<krzysztof.kozlowski+dt@linaro.org>, <mripard@kernel.org>,
<tzimmermann@suse.de>, <matthias.bgg@gmail.com>, <deller@gmx.de>,
<airlied@linux.ie>
Cc: <msp@baylibre.com>, <granquet@baylibre.com>,
<jitao.shi@mediatek.com>, <wenst@chromium.org>,
<angelogioacchino.delregno@collabora.com>, <ck.hu@mediatek.com>,
<liangxu.xu@mediatek.com>, <dri-devel@lists.freedesktop.org>,
<linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-fbdev@vger.kernel.org>,
<Project_Global_Chrome_Upstream_Group@mediatek.com>,
Bo-Chen Chen <rex-bc.chen@mediatek.com>
Subject: [PATCH v17 07/10] drm/mediatek: dp: Determine device of next_bridge
Date: Thu, 1 Sep 2022 12:41:46 +0800 [thread overview]
Message-ID: <20220901044149.16782-8-rex-bc.chen@mediatek.com> (raw)
In-Reply-To: <20220901044149.16782-1-rex-bc.chen@mediatek.com>
It's not necessary to have a next_bridge for DP device, so we add this
patch to judge this.
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index 136e13150281..e37c9185e4ec 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -1886,7 +1886,10 @@ static int mtk_dp_probe(struct platform_device *pdev)
"failed to request dp irq resource\n");
mtk_dp->next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 0);
- if (IS_ERR(mtk_dp->next_bridge))
+ if (IS_ERR(mtk_dp->next_bridge) &&
+ PTR_ERR(mtk_dp->next_bridge) == -ENODEV)
+ mtk_dp->next_bridge = NULL;
+ else if (IS_ERR(mtk_dp->next_bridge))
return dev_err_probe(dev, PTR_ERR(mtk_dp->next_bridge),
"Failed to get bridge\n");
--
2.18.0
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next prev parent reply other threads:[~2022-09-01 5:25 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-01 4:41 [PATCH v17 00/10] Add MT8195 DisplayPort driver Bo-Chen Chen
2022-09-01 4:41 ` [PATCH v17 01/10] dt-bindings: mediatek,dp: Add Display Port binding Bo-Chen Chen
2022-09-01 4:41 ` [PATCH v17 02/10] video/hdmi: Add audio_infoframe packing for DP Bo-Chen Chen
2022-09-04 14:56 ` Dmitry Osipenko
2022-09-01 4:41 ` [PATCH v17 03/10] drm/mediatek: Add MT8195 Embedded DisplayPort driver Bo-Chen Chen
2022-09-02 7:17 ` CK Hu
2022-09-06 0:07 ` Chun-Kuang Hu
2022-09-01 4:41 ` [PATCH v17 04/10] drm/mediatek: dp: Add multiple bridge types support Bo-Chen Chen
2022-09-02 7:22 ` CK Hu
2022-09-01 4:41 ` [PATCH v17 05/10] drm/mediatek: dp: Add multiple smc commands support Bo-Chen Chen
2022-09-02 7:32 ` CK Hu
2022-09-01 4:41 ` [PATCH v17 06/10] drm/mediatek: dp: Add multiple calibration data formats support Bo-Chen Chen
2022-09-02 7:38 ` CK Hu
2022-09-01 4:41 ` Bo-Chen Chen [this message]
2022-09-02 7:44 ` [PATCH v17 07/10] drm/mediatek: dp: Determine device of next_bridge CK Hu
2022-09-01 4:41 ` [PATCH v17 08/10] drm/mediatek: dp: Add MT8195 External DisplayPort support Bo-Chen Chen
2022-09-02 8:07 ` CK Hu
2022-09-01 4:41 ` [PATCH v17 09/10] drm/mediatek: dp: Add hpd debounce Bo-Chen Chen
2022-09-02 8:12 ` CK Hu
2022-09-01 4:41 ` [PATCH v17 10/10] drm/mediatek: dp: Audio support for MT8195 Bo-Chen Chen
2022-09-02 8:57 ` CK Hu
2022-09-01 10:58 ` [PATCH v17 00/10] Add MT8195 DisplayPort driver AngeloGioacchino Del Regno
2022-09-04 12:59 ` Dmitry Osipenko
2022-09-05 10:53 ` Dmitry Osipenko
2022-09-06 0:35 ` Chun-Kuang Hu
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