Re: [PATCH v20 1/8] soc: mediatek: add mtk-mmsys support for mt8195 vdosys0

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On 19/04/2022 11:41, jason-jh.lin wrote:

1. Add mt8195 mmsys compatible for 2 vdosys.
2. Add io_start into each driver data of mt8195 vdosys.
3. Add get match data function to identify mmsys by io_start.
4. Add mt8195 routing table settings of vdosys0.

Signed-off-by: jason-jh.lin <jason-jh.lin@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
I'm not very happy with the approach of testing against the reg property to decide which version of the two mmsys devices we are probing. I think a better approach would be, if we would have added some mediatek specific ID to the device tree binding (or use a two compatibles?).
But as we are at v20 I think it wouldn't be fair to ask for such an instrusive change. So I'll take this patch now, but maybe we can discuss if we can't do better in a follow-up patch. Especially I don't think it's a good approach to check for the io_start in the DRM driver. Couldn't we pass the information about which of the two mmsys blocks we are calling from through the mediatek-drm platform device spefic data?
I also had a look into the vdosys1 series to better understand why we need to do things as we do them. But honestly I wasn't able to really understand the implication of the patch that adds 'multi mmsys support' [1]. For this looks like a several patches that got squashed into one. But as I don't have to maintain that it is not my call to complain, the patch has the needed reviews. 

For this patch, now applied to v5.18-next/soc

Thanks for all people implicated.

Regards,
Matthias
[1] https://patchwork.kernel.org/project/linux-mediatek/patch/20220416020749.29010-19-nancy.lin@xxxxxxxxxxxx/ 


---
Based on series [1]

[1] MediaTek MT8195 display binding
- https://patchwork.ozlabs.org/project/devicetree-bindings/list/?series=295669
---
  drivers/soc/mediatek/mt8195-mmsys.h    | 370 +++++++++++++++++++++++++
  drivers/soc/mediatek/mtk-mmsys.c       | 152 +++++++++-
  drivers/soc/mediatek/mtk-mmsys.h       |   6 +
  include/linux/soc/mediatek/mtk-mmsys.h |  11 +
  4 files changed, 528 insertions(+), 11 deletions(-)
  create mode 100644 drivers/soc/mediatek/mt8195-mmsys.h

diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h
new file mode 100644
index 000000000000..13ab0ab64396
--- /dev/null
+++ b/drivers/soc/mediatek/mt8195-mmsys.h
@@ -0,0 +1,370 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8195_MMSYS_H
+#define __SOC_MEDIATEK_MT8195_MMSYS_H
+
+#define MT8195_VDO0_OVL_MOUT_EN					0xf14
+#define MT8195_MOUT_DISP_OVL0_TO_DISP_RDMA0			BIT(0)
+#define MT8195_MOUT_DISP_OVL0_TO_DISP_WDMA0			BIT(1)
+#define MT8195_MOUT_DISP_OVL0_TO_DISP_OVL1			BIT(2)
+#define MT8195_MOUT_DISP_OVL1_TO_DISP_RDMA1			BIT(4)
+#define MT8195_MOUT_DISP_OVL1_TO_DISP_WDMA1			BIT(5)
+#define MT8195_MOUT_DISP_OVL1_TO_DISP_OVL0			BIT(6)
+
+#define MT8195_VDO0_SEL_IN					0xf34
+#define MT8195_SEL_IN_VPP_MERGE_FROM_MASK			GENMASK(1, 0)
+#define MT8195_SEL_IN_VPP_MERGE_FROM_DSC_WRAP0_OUT		(0 << 0)
+#define MT8195_SEL_IN_VPP_MERGE_FROM_DISP_DITHER1		(1 << 0)
+#define MT8195_SEL_IN_VPP_MERGE_FROM_VDO1_VIRTUAL0		(2 << 0)
+#define MT8195_SEL_IN_DSC_WRAP0_IN_FROM_MASK			GENMASK(4, 4)
+#define MT8195_SEL_IN_DSC_WRAP0_IN_FROM_DISP_DITHER0		(0 << 4)
+#define MT8195_SEL_IN_DSC_WRAP0_IN_FROM_VPP_MERGE		(1 << 4)
+#define MT8195_SEL_IN_DSC_WRAP1_IN_FROM_MASK			GENMASK(5, 5)
+#define MT8195_SEL_IN_DSC_WRAP1_IN_FROM_DISP_DITHER1		(0 << 5)
+#define MT8195_SEL_IN_DSC_WRAP1_IN_FROM_VPP_MERGE		(1 << 5)
+#define MT8195_SEL_IN_SINA_VIRTUAL0_FROM_MASK			GENMASK(8, 8)
+#define MT8195_SEL_IN_SINA_VIRTUAL0_FROM_VPP_MERGE		(0 << 8)
+#define MT8195_SEL_IN_SINA_VIRTUAL0_FROM_DSC_WRAP1_OUT		(1 << 8)
+#define MT8195_SEL_IN_SINB_VIRTUAL0_FROM_MASK			GENMASK(9, 9)
+#define MT8195_SEL_IN_SINB_VIRTUAL0_FROM_DSC_WRAP0_OUT		(0 << 9)
+#define MT8195_SEL_IN_DP_INTF0_FROM_MASK			GENMASK(13, 12)
+#define MT8195_SEL_IN_DP_INTF0_FROM_DSC_WRAP1_OUT		(0 << 0)
+#define MT8195_SEL_IN_DP_INTF0_FROM_VPP_MERGE			(1 << 12)
+#define MT8195_SEL_IN_DP_INTF0_FROM_VDO1_VIRTUAL0		(2 << 12)
+#define MT8195_SEL_IN_DSI0_FROM_MASK				GENMASK(16, 16)
+#define MT8195_SEL_IN_DSI0_FROM_DSC_WRAP0_OUT			(0 << 16)
+#define MT8195_SEL_IN_DSI0_FROM_DISP_DITHER0			(1 << 16)
+#define MT8195_SEL_IN_DSI1_FROM_MASK				GENMASK(17, 17)
+#define MT8195_SEL_IN_DSI1_FROM_DSC_WRAP1_OUT			(0 << 17)
+#define MT8195_SEL_IN_DSI1_FROM_VPP_MERGE			(1 << 17)
+#define MT8195_SEL_IN_DISP_WDMA1_FROM_MASK			GENMASK(20, 20)
+#define MT8195_SEL_IN_DISP_WDMA1_FROM_DISP_OVL1			(0 << 20)
+#define MT8195_SEL_IN_DISP_WDMA1_FROM_VPP_MERGE			(1 << 20)
+#define MT8195_SEL_IN_DSC_WRAP1_FROM_MASK			GENMASK(21, 21)
+#define MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DSC_WRAP1_IN		(0 << 21)
+#define MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DISP_DITHER1		(1 << 21)
+#define MT8195_SEL_IN_DISP_WDMA0_FROM_MASK			GENMASK(22, 22)
+#define MT8195_SEL_IN_DISP_WDMA0_FROM_DISP_OVL0			(0 << 22)
+
+#define MT8195_VDO0_SEL_OUT					0xf38
+#define MT8195_SOUT_DISP_DITHER0_TO_MASK			BIT(0)
+#define MT8195_SOUT_DISP_DITHER0_TO_DSC_WRAP0_IN		(0 << 0)
+#define MT8195_SOUT_DISP_DITHER0_TO_DSI0			(1 << 0)
+#define MT8195_SOUT_DISP_DITHER1_TO_MASK			GENMASK(2, 1)
+#define MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_IN		(0 << 1)
+#define MT8195_SOUT_DISP_DITHER1_TO_VPP_MERGE			(1 << 1)
+#define MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_OUT		(2 << 1)
+#define MT8195_SOUT_VDO1_VIRTUAL0_TO_MASK			GENMASK(4, 4)
+#define MT8195_SOUT_VDO1_VIRTUAL0_TO_VPP_MERGE			(0 << 4)
+#define MT8195_SOUT_VDO1_VIRTUAL0_TO_DP_INTF0			(1 << 4)
+#define MT8195_SOUT_VPP_MERGE_TO_MASK				GENMASK(10, 8)
+#define MT8195_SOUT_VPP_MERGE_TO_DSI1				(0 << 8)
+#define MT8195_SOUT_VPP_MERGE_TO_DP_INTF0			(1 << 8)
+#define MT8195_SOUT_VPP_MERGE_TO_SINA_VIRTUAL0			(2 << 8)
+#define MT8195_SOUT_VPP_MERGE_TO_DISP_WDMA1			(3 << 8)
+#define MT8195_SOUT_VPP_MERGE_TO_DSC_WRAP0_IN			(4 << 8)
+#define MT8195_SOUT_VPP_MERGE_TO_DSC_WRAP1_IN_MASK		GENMASK(11, 11)
+#define MT8195_SOUT_VPP_MERGE_TO_DSC_WRAP1_IN			(0 << 11)
+#define MT8195_SOUT_DSC_WRAP0_OUT_TO_MASK			GENMASK(13, 12)
+#define MT8195_SOUT_DSC_WRAP0_OUT_TO_DSI0			(0 << 12)
+#define MT8195_SOUT_DSC_WRAP0_OUT_TO_SINB_VIRTUAL0		(1 << 12)
+#define MT8195_SOUT_DSC_WRAP0_OUT_TO_VPP_MERGE			(2 << 12)
+#define MT8195_SOUT_DSC_WRAP1_OUT_TO_MASK			GENMASK(17, 16)
+#define MT8195_SOUT_DSC_WRAP1_OUT_TO_DSI1			(0 << 16)
+#define MT8195_SOUT_DSC_WRAP1_OUT_TO_DP_INTF0			(1 << 16)
+#define MT8195_SOUT_DSC_WRAP1_OUT_TO_SINA_VIRTUAL0		(2 << 16)
+#define MT8195_SOUT_DSC_WRAP1_OUT_TO_VPP_MERGE			(3 << 16)
+
+static const struct mtk_mmsys_routes mmsys_mt8195_routing_table[] = {
+	{
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_RDMA0,
+		MT8195_VDO0_OVL_MOUT_EN, MT8195_MOUT_DISP_OVL0_TO_DISP_RDMA0,
+		MT8195_MOUT_DISP_OVL0_TO_DISP_RDMA0
+	}, {
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_WDMA0,
+		MT8195_VDO0_OVL_MOUT_EN, MT8195_MOUT_DISP_OVL0_TO_DISP_WDMA0,
+		MT8195_MOUT_DISP_OVL0_TO_DISP_WDMA0
+	}, {
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL1,
+		MT8195_VDO0_OVL_MOUT_EN, MT8195_MOUT_DISP_OVL0_TO_DISP_OVL1,
+		MT8195_MOUT_DISP_OVL0_TO_DISP_OVL1
+	}, {
+		DDP_COMPONENT_OVL1, DDP_COMPONENT_RDMA1,
+		MT8195_VDO0_OVL_MOUT_EN, MT8195_MOUT_DISP_OVL1_TO_DISP_RDMA1,
+		MT8195_MOUT_DISP_OVL1_TO_DISP_RDMA1
+	}, {
+		DDP_COMPONENT_OVL1, DDP_COMPONENT_WDMA1,
+		MT8195_VDO0_OVL_MOUT_EN, MT8195_MOUT_DISP_OVL1_TO_DISP_WDMA1,
+		MT8195_MOUT_DISP_OVL1_TO_DISP_WDMA1
+	}, {
+		DDP_COMPONENT_OVL1, DDP_COMPONENT_OVL0,
+		MT8195_VDO0_OVL_MOUT_EN, MT8195_MOUT_DISP_OVL1_TO_DISP_OVL0,
+		MT8195_MOUT_DISP_OVL1_TO_DISP_OVL0
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_VPP_MERGE_FROM_MASK,
+		MT8195_SEL_IN_VPP_MERGE_FROM_DSC_WRAP0_OUT
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_VPP_MERGE_FROM_MASK,
+		MT8195_SEL_IN_VPP_MERGE_FROM_DISP_DITHER1
+	}, {
+		DDP_COMPONENT_MERGE5, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_VPP_MERGE_FROM_MASK,
+		MT8195_SEL_IN_VPP_MERGE_FROM_VDO1_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSC0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP0_IN_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP0_IN_FROM_DISP_DITHER0
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DSC0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP0_IN_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP0_IN_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DSC1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_IN_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_IN_FROM_DISP_DITHER1
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DSC1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_IN_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_IN_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINA_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINA_VIRTUAL0_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINA_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINA_VIRTUAL0_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINA_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINA_VIRTUAL0_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINA_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINA_VIRTUAL0_FROM_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINA_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINA_VIRTUAL0_FROM_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINA_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINA_VIRTUAL0_FROM_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINB_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINB_VIRTUAL0_FROM_DSC_WRAP0_OUT
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINB_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINB_VIRTUAL0_FROM_DSC_WRAP0_OUT
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_SINB_VIRTUAL0_FROM_MASK,
+		MT8195_SEL_IN_SINB_VIRTUAL0_FROM_DSC_WRAP0_OUT
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DP_INTF0_FROM_MASK,
+		MT8195_SEL_IN_DP_INTF0_FROM_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DP_INTF0_FROM_MASK,
+		MT8195_SEL_IN_DP_INTF0_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_MERGE5, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DP_INTF0_FROM_MASK,
+		MT8195_SEL_IN_DP_INTF0_FROM_VDO1_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DSI0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSI0_FROM_MASK,
+		MT8195_SEL_IN_DSI0_FROM_DSC_WRAP0_OUT
+	}, {
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSI0_FROM_MASK,
+		MT8195_SEL_IN_DSI0_FROM_DISP_DITHER0
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DSI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSI1_FROM_MASK,
+		MT8195_SEL_IN_DSI1_FROM_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DSI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSI1_FROM_MASK,
+		MT8195_SEL_IN_DSI1_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_OVL1, DDP_COMPONENT_WDMA1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DISP_WDMA1_FROM_MASK,
+		MT8195_SEL_IN_DISP_WDMA1_FROM_DISP_OVL1
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_WDMA1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DISP_WDMA1_FROM_MASK,
+		MT8195_SEL_IN_DISP_WDMA1_FROM_VPP_MERGE
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DSI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DSI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DISP_DITHER1
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DISP_DITHER1
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DISP_DITHER1
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DSC_WRAP1_FROM_MASK,
+		MT8195_SEL_IN_DSC_WRAP1_OUT_FROM_DISP_DITHER1
+	}, {
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_WDMA0,
+		MT8195_VDO0_SEL_IN, MT8195_SEL_IN_DISP_WDMA0_FROM_MASK,
+		MT8195_SEL_IN_DISP_WDMA0_FROM_DISP_OVL0
+	}, {
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSC0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER0_TO_MASK,
+		MT8195_SOUT_DISP_DITHER0_TO_DSC_WRAP0_IN
+	}, {
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER0_TO_MASK,
+		MT8195_SOUT_DISP_DITHER0_TO_DSI0
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DSC1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER1_TO_MASK,
+		MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER1_TO_MASK,
+		MT8195_SOUT_DISP_DITHER1_TO_VPP_MERGE
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DSI1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER1_TO_MASK,
+		MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER1_TO_MASK,
+		MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER1_TO_MASK,
+		MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER1_TO_MASK,
+		MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_DITHER1, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DISP_DITHER1_TO_MASK,
+		MT8195_SOUT_DISP_DITHER1_TO_DSC_WRAP1_OUT
+	}, {
+		DDP_COMPONENT_MERGE5, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VDO1_VIRTUAL0_TO_MASK,
+		MT8195_SOUT_VDO1_VIRTUAL0_TO_VPP_MERGE
+	}, {
+		DDP_COMPONENT_MERGE5, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VDO1_VIRTUAL0_TO_MASK,
+		MT8195_SOUT_VDO1_VIRTUAL0_TO_DP_INTF0
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DSI1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_DSI1
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_DP_INTF0
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_SINA_VIRTUAL0
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_SINA_VIRTUAL0
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_SINA_VIRTUAL0
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_WDMA1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_DISP_WDMA1
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DSC0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_DSC_WRAP0_IN
+	}, {
+		DDP_COMPONENT_MERGE0, DDP_COMPONENT_DSC1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_VPP_MERGE_TO_DSC_WRAP1_IN_MASK,
+		MT8195_SOUT_VPP_MERGE_TO_DSC_WRAP1_IN
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DSI0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP0_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP0_OUT_TO_DSI0
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP0_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP0_OUT_TO_SINB_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP0_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP0_OUT_TO_SINB_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP0_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP0_OUT_TO_SINB_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DSC0, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP0_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP0_OUT_TO_VPP_MERGE
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DSI1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP1_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP1_OUT_TO_DSI1
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DP_INTF0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP1_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP1_OUT_TO_DP_INTF0
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DP_INTF1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP1_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP1_OUT_TO_SINA_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DPI0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP1_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP1_OUT_TO_SINA_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_DPI1,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP1_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP1_OUT_TO_SINA_VIRTUAL0
+	}, {
+		DDP_COMPONENT_DSC1, DDP_COMPONENT_MERGE0,
+		MT8195_VDO0_SEL_OUT, MT8195_SOUT_DSC_WRAP1_OUT_TO_MASK,
+		MT8195_SOUT_DSC_WRAP1_OUT_TO_VPP_MERGE
+	}
+};
+
+#endif /* __SOC_MEDIATEK_MT8195_MMSYS_H */
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 4fc4c2c9ea20..548efed8dc1c 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -17,6 +17,7 @@
  #include "mt8183-mmsys.h"
  #include "mt8186-mmsys.h"
  #include "mt8192-mmsys.h"
+#include "mt8195-mmsys.h"
  #include "mt8365-mmsys.h"
static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = { 
@@ -25,26 +26,61 @@ static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
  	.num_routes = ARRAY_SIZE(mmsys_default_routing_table),
  };
+static const struct mtk_mmsys_match_data mt2701_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt2701_mmsys_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
  	.clk_driver = "clk-mt2712-mm",
  	.routes = mmsys_default_routing_table,
  	.num_routes = ARRAY_SIZE(mmsys_default_routing_table),
  };
+static const struct mtk_mmsys_match_data mt2712_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt2712_mmsys_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt6779_mmsys_driver_data = {
  	.clk_driver = "clk-mt6779-mm",
  };
+static const struct mtk_mmsys_match_data mt6779_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt6779_mmsys_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt6797_mmsys_driver_data = {
  	.clk_driver = "clk-mt6797-mm",
  };
+static const struct mtk_mmsys_match_data mt6797_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt6797_mmsys_driver_data,
+	},
+};
+
  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_match_data mt8167_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8167_mmsys_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
  	.clk_driver = "clk-mt8173-mm",
  	.routes = mmsys_default_routing_table,
@@ -52,6 +88,13 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
  	.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
  };
+static const struct mtk_mmsys_match_data mt8173_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8173_mmsys_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
  	.clk_driver = "clk-mt8183-mm",
  	.routes = mmsys_mt8183_routing_table,
@@ -59,6 +102,13 @@ static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
  	.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
  };
+static const struct mtk_mmsys_match_data mt8183_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8183_mmsys_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
  	.clk_driver = "clk-mt8186-mm",
  	.routes = mmsys_mt8186_routing_table,
@@ -66,25 +116,79 @@ static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
  	.sw0_rst_offset = MT8186_MMSYS_SW0_RST_B,
  };
+static const struct mtk_mmsys_match_data mt8186_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8186_mmsys_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
  	.clk_driver = "clk-mt8192-mm",
  	.routes = mmsys_mt8192_routing_table,
  	.num_routes = ARRAY_SIZE(mmsys_mt8192_routing_table),
  };
+static const struct mtk_mmsys_match_data mt8192_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8192_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt8195_vdosys0_driver_data = {
+	.io_start = 0x1c01a000,
+	.clk_driver = "clk-mt8195-vdo0",
+	.routes = mmsys_mt8195_routing_table,
+	.num_routes = ARRAY_SIZE(mmsys_mt8195_routing_table),
+};
+
+static const struct mtk_mmsys_driver_data mt8195_vdosys1_driver_data = {
+	.io_start = 0x1c100000,
+	.clk_driver = "clk-mt8195-vdo1",
+};
+
+static const struct mtk_mmsys_match_data mt8195_mmsys_match_data = {
+	.num_drv_data = 2,
+	.drv_data = {
+		&mt8195_vdosys0_driver_data,
+		&mt8195_vdosys1_driver_data,
+	},
+};
+
  static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data = {
  	.clk_driver = "clk-mt8365-mm",
  	.routes = mt8365_mmsys_routing_table,
  	.num_routes = ARRAY_SIZE(mt8365_mmsys_routing_table),
  };
+static const struct mtk_mmsys_match_data mt8365_mmsys_match_data = { 
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8365_mmsys_driver_data,
+	},
+};
+
  struct mtk_mmsys {
  	void __iomem *regs;
  	const struct mtk_mmsys_driver_data *data;
  	spinlock_t lock; /* protects mmsys_sw_rst_b reg */
  	struct reset_controller_dev rcdev;
+	phys_addr_t io_start;
  };
+static int mtk_mmsys_find_match_drvdata(struct mtk_mmsys *mmsys, 
+					const struct mtk_mmsys_match_data *match)
+{
+	int i;
+
+	for (i = 0; i < match->num_drv_data; i++)
+		if (mmsys->io_start == match->drv_data[i]->io_start)
+			return i;
+
+	return -EINVAL;
+}
+
  void mtk_mmsys_ddp_connect(struct device *dev,
  			   enum mtk_ddp_comp_id cur,
  			   enum mtk_ddp_comp_id next)
@@ -179,7 +283,9 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
  	struct device *dev = &pdev->dev;
  	struct platform_device *clks;
  	struct platform_device *drm;
+	const struct mtk_mmsys_match_data *match_data;
  	struct mtk_mmsys *mmsys;
+	struct resource *res;
  	int ret;
mmsys = devm_kzalloc(dev, sizeof(*mmsys), GFP_KERNEL); 
@@ -205,7 +311,27 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
  		return ret;
  	}
- mmsys->data = of_device_get_match_data(&pdev->dev); 
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "Couldn't get mmsys resource\n");
+		return -EINVAL;
+	}
+	mmsys->io_start = res->start;
+
+	match_data = of_device_get_match_data(dev);
+	if (match_data->num_drv_data > 1) {
+		/* This SoC has multiple mmsys channels */
+		ret = mtk_mmsys_find_match_drvdata(mmsys, match_data);
+		if (ret < 0) {
+			dev_err(dev, "Couldn't get match driver data\n");
+			return ret;
+		}
+		mmsys->data = match_data->drv_data[ret];
+	} else {
+		dev_dbg(dev, "Using single mmsys channel\n");
+		mmsys->data = match_data->drv_data[0];
+	}
+
  	platform_set_drvdata(pdev, mmsys);
clks = platform_device_register_data(&pdev->dev, mmsys->data->clk_driver, 
@@ -226,43 +352,47 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
  static const struct of_device_id of_match_mtk_mmsys[] = {
  	{
  		.compatible = "mediatek,mt2701-mmsys",
-		.data = &mt2701_mmsys_driver_data,
+		.data = &mt2701_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt2712-mmsys",
-		.data = &mt2712_mmsys_driver_data,
+		.data = &mt2712_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt6779-mmsys",
-		.data = &mt6779_mmsys_driver_data,
+		.data = &mt6779_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt6797-mmsys",
-		.data = &mt6797_mmsys_driver_data,
+		.data = &mt6797_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt8167-mmsys",
-		.data = &mt8167_mmsys_driver_data,
+		.data = &mt8167_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt8173-mmsys",
-		.data = &mt8173_mmsys_driver_data,
+		.data = &mt8173_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt8183-mmsys",
-		.data = &mt8183_mmsys_driver_data,
+		.data = &mt8183_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt8186-mmsys",
-		.data = &mt8186_mmsys_driver_data,
+		.data = &mt8186_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt8192-mmsys",
-		.data = &mt8192_mmsys_driver_data,
+		.data = &mt8192_mmsys_match_data,
+	},
+	{
+		.compatible = "mediatek,mt8195-mmsys",
+		.data = &mt8195_mmsys_match_data,
  	},
  	{
  		.compatible = "mediatek,mt8365-mmsys",
-		.data = &mt8365_mmsys_driver_data,
+		.data = &mt8365_mmsys_match_data,
  	},
  	{ }
  };
diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h
index 77f37f8c715b..f01ba206481d 100644
--- a/drivers/soc/mediatek/mtk-mmsys.h
+++ b/drivers/soc/mediatek/mtk-mmsys.h
@@ -87,12 +87,18 @@ struct mtk_mmsys_routes {
  };
struct mtk_mmsys_driver_data { 
+	const resource_size_t io_start;
  	const char *clk_driver;
  	const struct mtk_mmsys_routes *routes;
  	const unsigned int num_routes;
  	const u16 sw0_rst_offset;
  };
+struct mtk_mmsys_match_data { 
+	unsigned short num_drv_data;
+	const struct mtk_mmsys_driver_data *drv_data[];
+};
+
  /*
   * Routes in mt8173, mt2701, mt2712 are different. That means
   * in the same register address, it controls different input/output
diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h
index 4bba275e235a..cff5c9adbf46 100644
--- a/include/linux/soc/mediatek/mtk-mmsys.h
+++ b/include/linux/soc/mediatek/mtk-mmsys.h
@@ -17,13 +17,24 @@ enum mtk_ddp_comp_id {
  	DDP_COMPONENT_COLOR0,
  	DDP_COMPONENT_COLOR1,
  	DDP_COMPONENT_DITHER,
+	DDP_COMPONENT_DITHER1,
+	DDP_COMPONENT_DP_INTF0,
+	DDP_COMPONENT_DP_INTF1,
  	DDP_COMPONENT_DPI0,
  	DDP_COMPONENT_DPI1,
+	DDP_COMPONENT_DSC0,
+	DDP_COMPONENT_DSC1,
  	DDP_COMPONENT_DSI0,
  	DDP_COMPONENT_DSI1,
  	DDP_COMPONENT_DSI2,
  	DDP_COMPONENT_DSI3,
  	DDP_COMPONENT_GAMMA,
+	DDP_COMPONENT_MERGE0,
+	DDP_COMPONENT_MERGE1,
+	DDP_COMPONENT_MERGE2,
+	DDP_COMPONENT_MERGE3,
+	DDP_COMPONENT_MERGE4,
+	DDP_COMPONENT_MERGE5,
  	DDP_COMPONENT_OD0,
  	DDP_COMPONENT_OD1,
  	DDP_COMPONENT_OVL0,
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