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    Subject[v7, PATCH 3/7] mtk-mmsys: add mt8183 mmsys support
    Date
    add mt8183 mmsys support

    Feature: drm/mediatek
    Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
    ---
    drivers/soc/mediatek/mmsys/Makefile | 1 +
    drivers/soc/mediatek/mmsys/mt8183-mmsys.c | 161 ++++++++++++++++++++++++++++++
    drivers/soc/mediatek/mtk-mmsys.c | 1 +
    3 files changed, 163 insertions(+)
    create mode 100644 drivers/soc/mediatek/mmsys/mt8183-mmsys.c

    diff --git a/drivers/soc/mediatek/mmsys/Makefile b/drivers/soc/mediatek/mmsys/Makefile
    index 33b0dab..62cfedf 100644
    --- a/drivers/soc/mediatek/mmsys/Makefile
    +++ b/drivers/soc/mediatek/mmsys/Makefile
    @@ -1,2 +1,3 @@
    # SPDX-License-Identifier: GPL-2.0-only
    obj-y += mt2701-mmsys.o
    +obj-y += mt8183-mmsys.o
    diff --git a/drivers/soc/mediatek/mmsys/mt8183-mmsys.c b/drivers/soc/mediatek/mmsys/mt8183-mmsys.c
    new file mode 100644
    index 0000000..9d5f276
    --- /dev/null
    +++ b/drivers/soc/mediatek/mmsys/mt8183-mmsys.c
    @@ -0,0 +1,161 @@
    +// SPDX-License-Identifier: GPL-2.0
    +//
    +// Copyright (c) 2020 MediaTek Inc.
    +
    +#include <linux/device.h>
    +#include <linux/io.h>
    +#include <linux/of_device.h>
    +#include <linux/platform_device.h>
    +#include <linux/soc/mediatek/mtk-mmsys.h>
    +
    +#define DISP_OVL0_MOUT_EN 0xf00
    +#define DISP_OVL0_2L_MOUT_EN 0xf04
    +#define DISP_OVL1_2L_MOUT_EN 0xf08
    +#define DISP_DITHER0_MOUT_EN 0xf0c
    +#define DISP_PATH0_SEL_IN 0xf24
    +#define DISP_DSI0_SEL_IN 0xf2c
    +#define DISP_DPI0_SEL_IN 0xf30
    +#define DISP_RDMA0_SOUT_SEL_IN 0xf50
    +#define DISP_RDMA1_SOUT_SEL_IN 0xf54
    +
    +#define OVL0_MOUT_EN_OVL0_2L BIT(4)
    +#define OVL0_2L_MOUT_EN_DISP_PATH0 BIT(0)
    +#define OVL1_2L_MOUT_EN_RDMA1 BIT(4)
    +#define DITHER0_MOUT_IN_DSI0 BIT(0)
    +#define DISP_PATH0_SEL_IN_OVL0_2L 0x1
    +#define DSI0_SEL_IN_RDMA0 0x1
    +#define DSI0_SEL_IN_RDMA1 0x3
    +#define DPI0_SEL_IN_RDMA0 0x1
    +#define DPI0_SEL_IN_RDMA1 0x2
    +#define RDMA0_SOUT_COLOR0 0x1
    +#define RDMA1_SOUT_DSI0 0x1
    +
    +struct mmsys_path_sel {
    + enum mtk_ddp_comp_id cur;
    + enum mtk_ddp_comp_id next;
    + u32 addr;
    + u32 val;
    +};
    +
    +static struct mmsys_path_sel mmsys_mout_en[] = {
    + {
    + DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL_2L0,
    + DISP_OVL0_MOUT_EN, OVL0_MOUT_EN_OVL0_2L,
    + },
    + {
    + DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
    + DISP_OVL0_2L_MOUT_EN, OVL0_2L_MOUT_EN_DISP_PATH0,
    + },
    + {
    + DDP_COMPONENT_OVL_2L1, DDP_COMPONENT_RDMA1,
    + DISP_OVL1_2L_MOUT_EN, OVL1_2L_MOUT_EN_RDMA1,
    + },
    + {
    + DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
    + DISP_DITHER0_MOUT_EN, DITHER0_MOUT_IN_DSI0,
    + },
    +};
    +
    +static struct mmsys_path_sel mmsys_sel_in[] = {
    + {
    + DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
    + DISP_PATH0_SEL_IN, DISP_PATH0_SEL_IN_OVL0_2L,
    + },
    + {
    + DDP_COMPONENT_RDMA1, DDP_COMPONENT_DPI0,
    + DISP_DPI0_SEL_IN, DPI0_SEL_IN_RDMA1,
    + },
    +};
    +
    +static struct mmsys_path_sel mmsys_sout_sel[] = {
    + {
    + DDP_COMPONENT_RDMA0, DDP_COMPONENT_COLOR0,
    + DISP_RDMA0_SOUT_SEL_IN, RDMA0_SOUT_COLOR0,
    + },
    +};
    +
    +static unsigned int mtk_mmsys_ddp_mout_en(enum mtk_ddp_comp_id cur,
    + enum mtk_ddp_comp_id next,
    + unsigned int *addr)
    +{
    + u32 i;
    + u32 val = 0;
    + struct mmsys_path_sel *path;
    +
    + for (i = 0; i < ARRAY_SIZE(mmsys_mout_en); i++) {
    + path = &mmsys_mout_en[i];
    + if (cur == path->cur && next == path->next) {
    + *addr = path->addr;
    + val = path->val;
    + break;
    + }
    + }
    +
    + return val;
    +}
    +
    +static unsigned int mtk_mmsys_ddp_sel_in(enum mtk_ddp_comp_id cur,
    + enum mtk_ddp_comp_id next,
    + unsigned int *addr)
    +{
    + u32 i;
    + u32 val = 0;
    + struct mmsys_path_sel *path;
    +
    + for (i = 0; i < ARRAY_SIZE(mmsys_sel_in); i++) {
    + path = &mmsys_sel_in[i];
    + if (cur == path->cur && next == path->next) {
    + *addr = path->addr;
    + val = path->val;
    + break;
    + }
    + }
    +
    + return val;
    +}
    +
    +static void mtk_mmsys_ddp_sout_sel(void __iomem *config_regs,
    + enum mtk_ddp_comp_id cur,
    + enum mtk_ddp_comp_id next)
    +{
    + u32 i;
    + u32 val = 0;
    + u32 addr = 0;
    + struct mmsys_path_sel *path;
    +
    + for (i = 0; i < ARRAY_SIZE(mmsys_sout_sel); i++) {
    + path = &mmsys_sout_sel[i];
    + if (cur == path->cur && next == path->next) {
    + addr = path->addr;
    + val = path->val;
    + break;
    + }
    + }
    +
    + if (val)
    + writel_relaxed(val, config_regs + addr);
    +}
    +
    +static struct mtk_mmsys_conn_funcs mmsys_funcs = {
    + .mout_en = mtk_mmsys_ddp_mout_en,
    + .sel_in = mtk_mmsys_ddp_sel_in,
    + .sout_sel = mtk_mmsys_ddp_sout_sel,
    +};
    +
    +static int mmsys_probe(struct platform_device *pdev)
    +{
    + struct device *dev = &pdev->dev;
    +
    + mtk_mmsys_register_conn_funcs(dev->parent, &mmsys_funcs);
    +
    + return 0;
    +}
    +
    +static struct platform_driver mmsys_drv = {
    + .probe = mmsys_probe,
    + .driver = {
    + .name = "mt8183-mmsys",
    + },
    +};
    +
    +builtin_platform_driver(mmsys_drv);
    diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
    index 605b992..6a451ac 100644
    --- a/drivers/soc/mediatek/mtk-mmsys.c
    +++ b/drivers/soc/mediatek/mtk-mmsys.c
    @@ -47,6 +47,7 @@ struct mtk_mmsys_private_data {

    static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
    .clk_driver = "clk-mt8183-mm",
    + .mmsys_driver = "mt8183-mmsys",
    };

    void mtk_mmsys_ddp_connect(struct device *dev,
    --
    1.8.1.1.dirty
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