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Message-ID: <CAAOTY__RxokjAop3cY3Xmh9KdmeZi8HbMixdvSn+41=Kg9LMiQ@mail.gmail.com>
Date: Fri, 21 Aug 2020 07:35:20 +0800
From: Chun-Kuang Hu <chunkuang.hu@...nel.org>
To: Yongqiang Niu <yongqiang.niu@...iatek.com>
Cc: CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>,
Rob Herring <robh+dt@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Mark Rutland <mark.rutland@....com>,
devicetree@...r.kernel.org, David Airlie <airlied@...ux.ie>,
linux-kernel <linux-kernel@...r.kernel.org>,
DRI Development <dri-devel@...ts.freedesktop.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@...ts.infradead.org>,
Daniel Vetter <daniel@...ll.ch>,
Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v1 04/21] mtk-mmsys: add mt8192 mmsys support
Hi, Yongqiang:
Yongqiang Niu <yongqiang.niu@...iatek.com> 於 2020年8月20日 週四 下午2:16寫道：
>
> add mt8192 mmsys support
>
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
> drivers/soc/mediatek/mmsys/Makefile | 1 +
> drivers/soc/mediatek/mmsys/mt8192-mmsys.c | 159 ++++++++++++++++++++++++++++++
> 2 files changed, 160 insertions(+)
> create mode 100644 drivers/soc/mediatek/mmsys/mt8192-mmsys.c
>
> diff --git a/drivers/soc/mediatek/mmsys/Makefile b/drivers/soc/mediatek/mmsys/Makefile
> index 62cfedf..c4bb6be 100644
> --- a/drivers/soc/mediatek/mmsys/Makefile
> +++ b/drivers/soc/mediatek/mmsys/Makefile
> @@ -1,3 +1,4 @@
> # SPDX-License-Identifier: GPL-2.0-only
> obj-y += mt2701-mmsys.o
> obj-y += mt8183-mmsys.o
> +obj-y += mt8192-mmsys.o
> diff --git a/drivers/soc/mediatek/mmsys/mt8192-mmsys.c b/drivers/soc/mediatek/mmsys/mt8192-mmsys.c
> new file mode 100644
> index 0000000..006d41d
> --- /dev/null
> +++ b/drivers/soc/mediatek/mmsys/mt8192-mmsys.c
> @@ -0,0 +1,159 @@
> +// 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 MT8192_MMSYS_OVL_MOUT_EN 0xf04
> +#define DISP_OVL0_GO_BLEND BIT(0)
> +#define DISP_OVL0_GO_BG BIT(1)
> +#define DISP_OVL0_2L_GO_BLEND BIT(2)
> +#define DISP_OVL0_2L_GO_BG BIT(3)
> +#define MT8192_DISP_OVL0_2L_MOUT_EN 0xf18
> +#define MT8192_DISP_OVL0_MOUT_EN 0xf1c
> +#define OVL0_MOUT_EN_DISP_RDMA0 BIT(0)
> +#define MT8192_DISP_RDMA0_SEL_IN 0xf2c
> +#define MT8192_RDMA0_SEL_IN_OVL0_2L 0x3
> +#define MT8192_DISP_RDMA0_SOUT_SEL 0xf30
> +#define MT8192_RDMA0_SOUT_COLOR0 0x1
> +#define MT8192_DISP_CCORR0_SOUT_SEL 0xf34
> +#define MT8192_CCORR0_SOUT_AAL0 0x1
> +#define MT8192_DISP_AAL0_SEL_IN 0xf38
> +#define MT8192_AAL0_SEL_IN_CCORR0 0x1
> +#define MT8192_DISP_DITHER0_MOUT_EN 0xf3c
> +#define MT8192_DITHER0_MOUT_DSI0 BIT(0)
> +#define MT8192_DISP_DSI0_SEL_IN 0xf40
> +#define MT8192_DSI0_SEL_IN_DITHER0 0x1
> +#define MT8192_DISP_OVL2_2L_MOUT_EN 0xf4c
> +#define MT8192_OVL2_2L_MOUT_RDMA4 BIT(0)
> +
> +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_OVL_2L0, DDP_COMPONENT_RDMA0,
> + MT8192_DISP_OVL0_MOUT_EN, OVL0_MOUT_EN_DISP_RDMA0,
> + },
> + {
> + DDP_COMPONENT_OVL_2L2, DDP_COMPONENT_RDMA4,
> + MT8192_DISP_OVL2_2L_MOUT_EN, MT8192_OVL2_2L_MOUT_RDMA4,
> + },
> + {
> + DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
> + MT8192_DISP_DITHER0_MOUT_EN, MT8192_DITHER0_MOUT_DSI0,
> + },
> +};
> +
> +static struct mmsys_path_sel mmsys_sel_in[] = {
> + {
> + DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
> + MT8192_DISP_RDMA0_SEL_IN, MT8192_RDMA0_SEL_IN_OVL0_2L,
> + },
> + {
> + DDP_COMPONENT_CCORR, DDP_COMPONENT_AAL0,
> + MT8192_DISP_AAL0_SEL_IN, MT8192_AAL0_SEL_IN_CCORR0,
> + },
> + {
> + DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
> + MT8192_DISP_DSI0_SEL_IN, MT8192_DSI0_SEL_IN_DITHER0,
> + },
> +};
> +
> +static struct mmsys_path_sel mmsys_sout_sel[] = {
> + {
> + DDP_COMPONENT_RDMA0, DDP_COMPONENT_COLOR0,
> + MT8192_DISP_RDMA0_SOUT_SEL, MT8192_RDMA0_SOUT_COLOR0,
> + },
> + {
> + DDP_COMPONENT_CCORR, DDP_COMPONENT_AAL0,
> + MT8192_DISP_CCORR0_SOUT_SEL, MT8192_CCORR0_SOUT_AAL0,
> + }
> +};
> +
> +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;
> + 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;
> + return path->val;
> + }
> + }
> +
> + return 0;
> +}
> +
> +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;
> + 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;
> + return path->val;
> + }
> + }
> +
> + return 0;
> +}
> +
> +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;
> + writel_relaxed(path->val, config_regs + addr);
> + return;
> + }
> + }
> +}
> +
> +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,
> +};
I would like to do routing control like [1].
[1] https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/2345186
Regards,
Chun-Kuang.
> +
> +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 = "mt8192-mmsys",
> + },
> +};
> +
> +builtin_platform_driver(mmsys_drv);
> --
> 1.8.1.1.dirty
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