[PATCH 6.1 370/473] drm/mediatek: dp: Move PHY registration to new function

Greg Kroah-Hartman
2024-06-06T14:18:38Z

From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

[ Upstream commit 18ccc237cf646f93e25b802e5cca0788f4f48b39 ]

In preparation for adding support for eDP, move the PHY registration
code to a new mtk_dp_register_phy() function for better readability.

This commit brings no functional changes.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20230725073234.55892-9-angelogioacchino.delregno@collabora.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Stable-dep-of: 8431fff9e0f3 ("drm/mediatek: dp: Fix mtk_dp_aux_transfer return value")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/mediatek/mtk_dp.c | 43 +++++++++++++++++++------------
1 file changed, 26 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index 519e23a2a017c..326a536e677cd 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -2490,6 +2490,29 @@ static int mtk_dp_register_audio_driver(struct device *dev)
return PTR_ERR_OR_ZERO(mtk_dp->audio_pdev);
}

+static int mtk_dp_register_phy(struct mtk_dp *mtk_dp)
+{
+ struct device *dev = mtk_dp->dev;
+
+ mtk_dp->phy_dev = platform_device_register_data(dev, "mediatek-dp-phy",
+ PLATFORM_DEVID_AUTO,
+ &mtk_dp->regs,
+ sizeof(struct regmap *));
+ if (IS_ERR(mtk_dp->phy_dev))
+ return dev_err_probe(dev, PTR_ERR(mtk_dp->phy_dev),
+ "Failed to create device mediatek-dp-phy\n");
+
+ mtk_dp_get_calibration_data(mtk_dp);
+
+ mtk_dp->phy = devm_phy_get(&mtk_dp->phy_dev->dev, "dp");
+ if (IS_ERR(mtk_dp->phy)) {
+ platform_device_unregister(mtk_dp->phy_dev);
+ return dev_err_probe(dev, PTR_ERR(mtk_dp->phy), "Failed to get phy\n");
+ }
+
+ return 0;
+}
+
static int mtk_dp_probe(struct platform_device *pdev)
{
struct mtk_dp *mtk_dp;
@@ -2547,23 +2570,9 @@ static int mtk_dp_probe(struct platform_device *pdev)
}
}

- mtk_dp->phy_dev = platform_device_register_data(dev, "mediatek-dp-phy",
- PLATFORM_DEVID_AUTO,
- &mtk_dp->regs,
- sizeof(struct regmap *));
- if (IS_ERR(mtk_dp->phy_dev))
- return dev_err_probe(dev, PTR_ERR(mtk_dp->phy_dev),
- "Failed to create device mediatek-dp-phy\n");
-
- mtk_dp_get_calibration_data(mtk_dp);
-
- mtk_dp->phy = devm_phy_get(&mtk_dp->phy_dev->dev, "dp");
-
- if (IS_ERR(mtk_dp->phy)) {
- platform_device_unregister(mtk_dp->phy_dev);
- return dev_err_probe(dev, PTR_ERR(mtk_dp->phy),
- "Failed to get phy\n");
- }
+ ret = mtk_dp_register_phy(mtk_dp);
+ if (ret)
+ return ret;

mtk_dp->bridge.funcs = &mtk_dp_bridge_funcs;
mtk_dp->bridge.of_node = dev->of_node;
--
2.43.0