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From:   Jitao Shi <jitao.shi@mediatek.com>
To:     Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>, <linux-pwm@vger.kernel.org>,
        David Airlie <airlied@linux.ie>,
        Matthias Brugger <matthias.bgg@gmail.com>
CC:     Jitao Shi <jitao.shi@mediatek.com>,
        Thierry Reding <treding@nvidia.com>,
        Ajay Kumar <ajaykumar.rs@samsung.com>,
        Inki Dae <inki.dae@samsung.com>,
        Rahul Sharma <rahul.sharma@samsung.com>,
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        Philipp Zabel <p.zabel@pengutronix.de>,
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Subject: [v3 3/3] drm/mediatek: add mt8183 dpi support
Date:   Tue, 16 Apr 2019 13:52:42 +0800
Message-ID: <20190416055242.75764-4-jitao.shi@mediatek.com>
In-Reply-To: <20190416055242.75764-1-jitao.shi@mediatek.com>
References: <20190416055242.75764-1-jitao.shi@mediatek.com>
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Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 66405159141a..fbb087218775 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -681,6 +681,16 @@ static unsigned int mt2701_calculate_factor(int clock)
 		return 2;
 }
 
+static unsigned int mt8183_calculate_factor(int clock)
+{
+	if (clock <= 27000)
+		return 8;
+	else if (clock <= 167000)
+		return 4;
+	else
+		return 2;
+}
+
 static const struct mtk_dpi_conf mt8173_conf = {
 	.cal_factor = mt8173_calculate_factor,
 	.reg_h_fre_con = 0xe0,
@@ -692,6 +702,12 @@ static const struct mtk_dpi_conf mt2701_conf = {
 	.edge_sel_en = true,
 };
 
+static const struct mtk_dpi_conf mt8183_conf = {
+	.cal_factor = mt8183_calculate_factor,
+	.reg_h_fre_con = 0xe0,
+	.dual_edge = true,
+};
+
 static int mtk_dpi_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -787,6 +803,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = {
 	{ .compatible = "mediatek,mt8173-dpi",
 	  .data = &mt8173_conf,
 	},
+	{ .compatible = "mediatek,mt8183-dpi",
+	  .data = &mt8183_conf,
+	},
 	{ },
 };
 
-- 
2.21.0