linux-kernel - [PATCH v17 04/10] drm/mediatek: dp: Add multiple bridge types support

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Date:   Thu, 1 Sep 2022 12:41:43 +0800
From:   Bo-Chen Chen <rex-bc.chen@...iatek.com>
To:     <chunkuang.hu@...nel.org>, <p.zabel@...gutronix.de>,
        <daniel@...ll.ch>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <mripard@...nel.org>,
        <tzimmermann@...e.de>, <matthias.bgg@...il.com>, <deller@....de>,
        <airlied@...ux.ie>
CC:     <msp@...libre.com>, <granquet@...libre.com>,
        <jitao.shi@...iatek.com>, <wenst@...omium.org>,
        <angelogioacchino.delregno@...labora.com>, <ck.hu@...iatek.com>,
        <liangxu.xu@...iatek.com>, <dri-devel@...ts.freedesktop.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-fbdev@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Bo-Chen Chen <rex-bc.chen@...iatek.com>
Subject: [PATCH v17 04/10] drm/mediatek: dp: Add multiple bridge types support

The bridge types of eDP and DP are different. We add device data to
this driver and add bridge_type to the device data to define them.

Signed-off-by: Bo-Chen Chen <rex-bc.chen@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dp.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
index e2ec9b02b1aa..2696c1ac1a47 100644
--- a/drivers/gpu/drm/mediatek/mtk_dp.c
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -101,6 +101,7 @@ struct mtk_dp {
 	struct drm_device *drm_dev;
 	struct drm_dp_aux aux;
 
+	const struct mtk_dp_data *data;
 	struct mtk_dp_info info;
 	struct mtk_dp_train_info train_info;
 
@@ -109,6 +110,9 @@ struct mtk_dp {
 	struct regmap *regs;
 };
 
+struct mtk_dp_data {
+	int bridge_type;
+};
 static const struct mtk_dp_efuse_fmt mtk_dp_efuse_data[MTK_DP_CAL_MAX] = {
 	[MTK_DP_CAL_GLB_BIAS_TRIM] = {
 		.idx = 3,
@@ -1871,6 +1875,7 @@ static int mtk_dp_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	mtk_dp->dev = dev;
+	mtk_dp->data = (struct mtk_dp_data *)of_device_get_match_data(dev);
 
 	irq_num = platform_get_irq(pdev, 0);
 	if (irq_num < 0)
@@ -1925,7 +1930,7 @@ static int mtk_dp_probe(struct platform_device *pdev)
 
 	mtk_dp->bridge.ops =
 		DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_HPD;
-	mtk_dp->bridge.type = DRM_MODE_CONNECTOR_eDP;
+	mtk_dp->bridge.type = mtk_dp->data->bridge_type;
 
 	drm_bridge_add(&mtk_dp->bridge);
 
@@ -1974,8 +1979,15 @@ static int mtk_dp_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(mtk_dp_pm_ops, mtk_dp_suspend, mtk_dp_resume);
 
+static const struct mtk_dp_data mt8195_edp_data = {
+	.bridge_type = DRM_MODE_CONNECTOR_eDP,
+};
+
 static const struct of_device_id mtk_dp_of_match[] = {
-	{ .compatible = "mediatek,mt8195-edp-tx" },
+	{
+		.compatible = "mediatek,mt8195-edp-tx",
+		.data = &mt8195_edp_data,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, mtk_dp_of_match);
-- 
2.18.0