Re: [PATCH 2/5] soc: mediatek: change compatible name for mt8195

From: Jason-JH Lin
Date: Wed Sep 14 2022 - 21:31:17 EST

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In reply to: Matthias Brugger: "Re: [PATCH 2/5] soc: mediatek: change compatible name for mt8195"
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Hi Matthias,

Thanks for the reviews.

On Wed, 2022-09-14 at 22:42 +0200, Matthias Brugger wrote:
>
> On 14/09/2022 20:23, Jason-JH.Lin wrote:
> > In mt8195, vdosys0 and vdosys1 are 2 different function blocks
> > for mediatek-drm, so using 2 compatible instead of identifying
> > multiple mmsys by io_start.
> >
> > Fixes: b804923b7ccb ("soc: mediatek: add mtk-mmsys support for
> > mt8195 vdosys0")
> > Signed-off-by: Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx>
>
> From what I have seen we can just revert the commit. No fixes tag
> needed, it
> does not fix any (runtime) bug.
>
OK, I'll revert the original patch then add a new patch for
adding driver data of "mediatek,mt8195-vdosys0" compatible.

Regards,
Jason-JH.Lin

> Regards,
> Matthias
>
> > ---
> > drivers/soc/mediatek/mtk-mmsys.c | 141 +++++---------------------
> > -----
> > drivers/soc/mediatek/mtk-mmsys.h | 6 --
> > 2 files changed, 21 insertions(+), 126 deletions(-)
> >
> > diff --git a/drivers/soc/mediatek/mtk-mmsys.c
> > b/drivers/soc/mediatek/mtk-mmsys.c
> > index 06d8e83a2cb5..e1c653f3abc0 100644
> > --- a/drivers/soc/mediatek/mtk-mmsys.c
> > +++ b/drivers/soc/mediatek/mtk-mmsys.c
> > @@ -26,61 +26,26 @@ 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,
> > @@ -88,13 +53,6 @@ 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,
> > @@ -102,13 +60,6 @@ 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,
> > @@ -116,13 +67,6 @@ 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,
> > @@ -130,66 +74,29 @@ static const struct mtk_mmsys_driver_data
> > mt8192_mmsys_driver_data = {
> > .sw0_rst_offset = MT8186_MMSYS_SW0_RST_B,
> > };
> >
> > -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)
> > @@ -284,7 +191,6 @@ 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;
> > @@ -317,20 +223,11 @@ static int mtk_mmsys_probe(struct
> > platform_device *pdev)
> > 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];
> > +
> > + mmsys->data = of_device_get_match_data(&pdev->dev);
> > + if (!mmsys->data) {
> > + dev_err(dev, "Couldn't get match driver data\n");
> > + return -EINVAL;
> > }
> >
> > platform_set_drvdata(pdev, mmsys);
> > @@ -353,47 +250,51 @@ 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_match_data,
> > + .data = &mt2701_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt2712-mmsys",
> > - .data = &mt2712_mmsys_match_data,
> > + .data = &mt2712_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt6779-mmsys",
> > - .data = &mt6779_mmsys_match_data,
> > + .data = &mt6779_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt6797-mmsys",
> > - .data = &mt6797_mmsys_match_data,
> > + .data = &mt6797_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt8167-mmsys",
> > - .data = &mt8167_mmsys_match_data,
> > + .data = &mt8167_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt8173-mmsys",
> > - .data = &mt8173_mmsys_match_data,
> > + .data = &mt8173_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt8183-mmsys",
> > - .data = &mt8183_mmsys_match_data,
> > + .data = &mt8183_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt8186-mmsys",
> > - .data = &mt8186_mmsys_match_data,
> > + .data = &mt8186_mmsys_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt8192-mmsys",
> > - .data = &mt8192_mmsys_match_data,
> > + .data = &mt8192_mmsys_driver_data,
> > + },
> > + {
> > + .compatible = "mediatek,mt8195-vdosys0",
> > + .data = &mt8195_vdosys0_driver_data,
> > },
> > {
> > - .compatible = "mediatek,mt8195-mmsys",
> > - .data = &mt8195_mmsys_match_data,
> > + .compatible = "mediatek,mt8195-vdosys1",
> > + .data = &mt8195_vdosys1_driver_data,
> > },
> > {
> > .compatible = "mediatek,mt8365-mmsys",
> > - .data = &mt8365_mmsys_match_data,
> > + .data = &mt8365_mmsys_driver_data,
> > },
> > { }
> > };
> > diff --git a/drivers/soc/mediatek/mtk-mmsys.h
> > b/drivers/soc/mediatek/mtk-mmsys.h
> > index f01ba206481d..77f37f8c715b 100644
> > --- a/drivers/soc/mediatek/mtk-mmsys.h
> > +++ b/drivers/soc/mediatek/mtk-mmsys.h
> > @@ -87,18 +87,12 @@ 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
--
Jason-JH Lin <jason-jh.lin@xxxxxxxxxxxx>

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In reply to: Matthias Brugger: "Re: [PATCH 2/5] soc: mediatek: change compatible name for mt8195"
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