linux-kernel - [PATCH v2 2/2] drm/mediatek: mtk_hdmi: add MT8167 support for HDMI

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Date:   Tue, 13 Oct 2020 20:19:24 +0200
From:   Fabien Parent <fparent@...libre.com>
To:     linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        dri-devel@...ts.freedesktop.org
Cc:     matthias.bgg@...il.com, daniel@...ll.ch, airlied@...ux.ie,
        p.zabel@...gutronix.de, chunkuang.hu@...nel.org,
        Fabien Parent <fparent@...libre.com>
Subject: [PATCH v2 2/2] drm/mediatek: mtk_hdmi: add MT8167 support for HDMI

Add support for HDMI on MT8167. HDMI on MT8167 is similar to
MT8173/MT2701 execpt for the two registers: SYS_CFG1C and SYS_CFG20

Signed-off-by: Fabien Parent <fparent@...libre.com>
---

Changelog:
v2: fix name of pdata structure

 drivers/gpu/drm/mediatek/mtk_hdmi.c      | 7 +++++++
 drivers/gpu/drm/mediatek/mtk_hdmi_regs.h | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 57370c036497..484ea9cd654a 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1835,9 +1835,16 @@ static struct mtk_hdmi_data mt8173_hdmi_driver_data = {
 	.sys_cfg20 = HDMI_SYS_CFG20,
 };
 
+static struct mtk_hdmi_data mt8167_hdmi_driver_data = {
+	.sys_cfg1c = MT8167_HDMI_SYS_CFG1C,
+	.sys_cfg20 = MT8167_HDMI_SYS_CFG20,
+};
+
 static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
 	{ .compatible = "mediatek,mt8173-hdmi",
 	  .data = &mt8173_hdmi_driver_data },
+	{ .compatible = "mediatek,mt8167-hdmi",
+	  .data = &mt8167_hdmi_driver_data },
 	{}
 };
 
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h b/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
index 2050ba45b23a..a0f9c367d7aa 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
@@ -195,6 +195,7 @@
 #define GEN_RGB				(0 << 7)
 
 #define HDMI_SYS_CFG1C		0x000
+#define MT8167_HDMI_SYS_CFG1C	0x800
 #define HDMI_ON				BIT(0)
 #define HDMI_RST			BIT(1)
 #define ANLG_ON				BIT(2)
@@ -211,6 +212,7 @@
 #define HTPLG_PIN_SEL_OFF		BIT(30)
 #define AES_EFUSE_ENABLE		BIT(31)
 #define HDMI_SYS_CFG20		0x004
+#define MT8167_HDMI_SYS_CFG20	0x804
 #define DEEP_COLOR_MODE_MASK		(3 << 1)
 #define COLOR_8BIT_MODE			(0 << 1)
 #define COLOR_10BIT_MODE		(1 << 1)
-- 
2.28.0