linux-kernel - [PATCH v2 2/2] soc: mediatek: mmsys: Add support for MT8167 SoC

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Message-Id: <20210405200354.2194930-2-fparent@baylibre.com>
Date:   Mon,  5 Apr 2021 22:03:53 +0200
From:   Fabien Parent <fparent@...libre.com>
To:     Matthias Brugger <matthias.bgg@...il.com>
Cc:     mkorpershoek@...libre.com, Fabien Parent <fparent@...libre.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH v2 2/2] soc: mediatek: mmsys: Add support for MT8167 SoC

Add routing table for DSI on MT8167 SoC. The registers are mostly
incompatible with the current defines, so new one for MT8167 are added.

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

V2: Rebased on top of [0]

[0] https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/log/?h=for-next

 drivers/soc/mediatek/mt8167-mmsys.h | 35 +++++++++++++++++++++++++++++
 drivers/soc/mediatek/mtk-mmsys.c    | 11 +++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 drivers/soc/mediatek/mt8167-mmsys.h

diff --git a/drivers/soc/mediatek/mt8167-mmsys.h b/drivers/soc/mediatek/mt8167-mmsys.h
new file mode 100644
index 000000000000..2772ef5e3934
--- /dev/null
+++ b/drivers/soc/mediatek/mt8167-mmsys.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8167_MMSYS_H
+#define __SOC_MEDIATEK_MT8167_MMSYS_H
+
+#define MT8167_DISP_REG_CONFIG_DISP_OVL0_MOUT_EN	0x030
+#define MT8167_DISP_REG_CONFIG_DISP_DITHER_MOUT_EN	0x038
+#define MT8167_DISP_REG_CONFIG_DISP_COLOR0_SEL_IN	0x058
+#define MT8167_DISP_REG_CONFIG_DISP_DSI0_SEL_IN		0x064
+#define MT8167_DISP_REG_CONFIG_DISP_RDMA0_SOUT_SEL_IN	0x06c
+
+#define MT8167_DITHER_MOUT_EN_RDMA0			0x1
+#define MT8167_RDMA0_SOUT_DSI0				0x2
+#define MT8167_DSI0_SEL_IN_RDMA0			0x1
+
+static const struct mtk_mmsys_routes mt8167_mmsys_routing_table[] = {
+	{
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_COLOR0,
+		MT8167_DISP_REG_CONFIG_DISP_OVL0_MOUT_EN, OVL0_MOUT_EN_COLOR0,
+	}, {
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_RDMA0,
+		MT8167_DISP_REG_CONFIG_DISP_DITHER_MOUT_EN, MT8167_DITHER_MOUT_EN_RDMA0
+	}, {
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_COLOR0,
+		MT8167_DISP_REG_CONFIG_DISP_COLOR0_SEL_IN, COLOR0_SEL_IN_OVL0
+	}, {
+		DDP_COMPONENT_RDMA0, DDP_COMPONENT_DSI0,
+		MT8167_DISP_REG_CONFIG_DISP_DSI0_SEL_IN, MT8167_DSI0_SEL_IN_RDMA0
+	}, {
+		DDP_COMPONENT_RDMA0, DDP_COMPONENT_DSI0,
+		MT8167_DISP_REG_CONFIG_DISP_RDMA0_SOUT_SEL_IN, MT8167_RDMA0_SOUT_DSI0
+	},
+};
+
+#endif /* __SOC_MEDIATEK_MT8167_MMSYS_H */
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 79e55150210e..080660ef11bf 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -11,6 +11,7 @@
 #include <linux/soc/mediatek/mtk-mmsys.h>
 
 #include "mtk-mmsys.h"
+#include "mt8167-mmsys.h"
 #include "mt8183-mmsys.h"
 
 static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
@@ -33,6 +34,12 @@ static const struct mtk_mmsys_driver_data mt6797_mmsys_driver_data = {
 	.clk_driver = "clk-mt6797-mm",
 };
 
+static const struct mtk_mmsys_driver_data mt8167_mmsys_driver_data = {
+	.clk_driver = "clk-mt8167-mm",
+	.routes = mt8167_mmsys_routing_table,
+	.num_routes = ARRAY_SIZE(mt8167_mmsys_routing_table),
+};
+
 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
 	.clk_driver = "clk-mt8173-mm",
 	.routes = mmsys_default_routing_table,
@@ -138,6 +145,10 @@ static const struct of_device_id of_match_mtk_mmsys[] = {
 		.compatible = "mediatek,mt6797-mmsys",
 		.data = &mt6797_mmsys_driver_data,
 	},
+	{
+		.compatible = "mediatek,mt8167-mmsys",
+		.data = &mt8167_mmsys_driver_data,
+	},
 	{
 		.compatible = "mediatek,mt8173-mmsys",
 		.data = &mt8173_mmsys_driver_data,
-- 
2.31.0