Re: [PATCH v6 3/4] clk: mediatek: remove MT8195 vppsys/0/1 simple_probe

["Moudy Ho (何宗原)" <Moudy.Ho@mediatek.com>]

On Tue, 2023-01-31 at 17:50 +0800, Chen-Yu Tsai wrote:
> On Wed, Jan 18, 2023 at 11:16 AM Moudy Ho <moudy.ho@mediatek.com>
> wrote:
> > 
> > MT8195 VPPSYS0/1 will be probed by the compatible name in
> > the mtk-mmsys driver and then probe its own clock driver as
> > a platform driver.
> > 
> > Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
> > ---
> >  drivers/clk/mediatek/clk-mt8195-vpp0.c | 58 +++++++++++++++++++---
> > ----
> >  drivers/clk/mediatek/clk-mt8195-vpp1.c | 58 +++++++++++++++++++---
> > ----
> >  2 files changed, 86 insertions(+), 30 deletions(-)
> > 
> > diff --git a/drivers/clk/mediatek/clk-mt8195-vpp0.c
> > b/drivers/clk/mediatek/clk-mt8195-vpp0.c
> > index bf2939c3a023..6d5800f69f6c 100644
> > --- a/drivers/clk/mediatek/clk-mt8195-vpp0.c
> > +++ b/drivers/clk/mediatek/clk-mt8195-vpp0.c
> > @@ -86,26 +86,54 @@ static const struct mtk_gate vpp0_clks[] = {
> >         GATE_VPP0_2(CLK_VPP0_WARP1_MDP_DL_ASYNC,
> > "vpp0_warp1_mdp_dl_async", "top_wpe_vpp", 3),
> >  };
> > 
> > -static const struct mtk_clk_desc vpp0_desc = {
> > -       .clks = vpp0_clks,
> > -       .num_clks = ARRAY_SIZE(vpp0_clks),
> > -};
> > +static int clk_mt8195_vpp0_probe(struct platform_device *pdev)
> > +{
> > +       struct device *dev = &pdev->dev;
> > +       struct device_node *node = dev->parent->of_node;
> > +       struct clk_onecell_data *clk_data;
> 
> mtk_alloc_clk_data() API changed a couple releases back. So:
> 
>           struct clk_hw_onecell_data
> 
> > +       int r;
> > 
> > -static const struct of_device_id of_match_clk_mt8195_vpp0[] = {
> > -       {
> > -               .compatible = "mediatek,mt8195-vppsys0",
> > -               .data = &vpp0_desc,
> > -       }, {
> > -               /* sentinel */
> > -       }
> > -};
> > +       clk_data = mtk_alloc_clk_data(CLK_VPP0_NR_CLK);
> > +       if (!clk_data)
> > +               return -ENOMEM;
> > +
> > +       r = mtk_clk_register_gates(node, vpp0_clks,
> > ARRAY_SIZE(vpp0_clks), clk_data);
> 
> API changed.
> 
> > +       if (r)
> > +               goto free_vpp0_data;
> > +
> > +       r = of_clk_add_provider(node, of_clk_src_onecell_get,
> > clk_data);
> 
>               of_clk_add_provider(node, of_clk_hw_onecell_get,
> clk_data);
> 
> Same for the other driver.
> 
> 
> ChenYu
> 

Hi ChenYu,

Thanks for taking the time, could you please take a look at the v7?

https://lore.kernel.org/lkml/20230207014800.7619-1-moudy.ho@mediatek.com/

Regards,
Moudy
> > +       if (r)
> > +               goto unregister_gates;
> > +
> > +       platform_set_drvdata(pdev, clk_data);
> > +
> > +       return r;
> > +
> > +unregister_gates:
> > +       mtk_clk_unregister_gates(vpp0_clks, ARRAY_SIZE(vpp0_clks),
> > clk_data);
> > +free_vpp0_data:
> > +       mtk_free_clk_data(clk_data);
> > +       return r;
> > +}
> > +
> > +static int clk_mt8195_vpp0_remove(struct platform_device *pdev)
> > +{
> > +       struct device *dev = &pdev->dev;
> > +       struct device_node *node = dev->parent->of_node;
> > +       struct clk_hw_onecell_data *clk_data =
> > platform_get_drvdata(pdev);
> > +
> > +       of_clk_del_provider(node);
> > +       mtk_clk_unregister_gates(vpp0_clks, ARRAY_SIZE(vpp0_clks),
> > clk_data);
> > +       mtk_free_clk_data(clk_data);
> > +
> > +       return 0;
> > +}
> > 
> >  static struct platform_driver clk_mt8195_vpp0_drv = {
> > -       .probe = mtk_clk_simple_probe,
> > -       .remove = mtk_clk_simple_remove,
> > +       .probe = clk_mt8195_vpp0_probe,
> > +       .remove = clk_mt8195_vpp0_remove,
> >         .driver = {
> >                 .name = "clk-mt8195-vpp0",
> > -               .of_match_table = of_match_clk_mt8195_vpp0,
> >         },
> >  };
> >  builtin_platform_driver(clk_mt8195_vpp0_drv);
> > diff --git a/drivers/clk/mediatek/clk-mt8195-vpp1.c
> > b/drivers/clk/mediatek/clk-mt8195-vpp1.c
> > index ffd52c762890..3b88c69e96c9 100644
> > --- a/drivers/clk/mediatek/clk-mt8195-vpp1.c
> > +++ b/drivers/clk/mediatek/clk-mt8195-vpp1.c
> > @@ -84,26 +84,54 @@ static const struct mtk_gate vpp1_clks[] = {
> >         GATE_VPP1_1(CLK_VPP1_VPP_SPLIT_26M, "vpp1_vpp_split_26m",
> > "clk26m", 26),
> >  };
> > 
> > -static const struct mtk_clk_desc vpp1_desc = {
> > -       .clks = vpp1_clks,
> > -       .num_clks = ARRAY_SIZE(vpp1_clks),
> > -};
> > +static int clk_mt8195_vpp1_probe(struct platform_device *pdev)
> > +{
> > +       struct device *dev = &pdev->dev;
> > +       struct device_node *node = dev->parent->of_node;
> > +       struct clk_onecell_data *clk_data;
> > +       int r;
> > 
> > -static const struct of_device_id of_match_clk_mt8195_vpp1[] = {
> > -       {
> > -               .compatible = "mediatek,mt8195-vppsys1",
> > -               .data = &vpp1_desc,
> > -       }, {
> > -               /* sentinel */
> > -       }
> > -};
> > +       clk_data = mtk_alloc_clk_data(CLK_VPP1_NR_CLK);
> > +       if (!clk_data)
> > +               return -ENOMEM;
> > +
> > +       r = mtk_clk_register_gates(node, vpp1_clks,
> > ARRAY_SIZE(vpp1_clks), clk_data);
> > +       if (r)
> > +               goto free_vpp1_data;
> > +
> > +       r = of_clk_add_provider(node, of_clk_src_onecell_get,
> > clk_data);
> > +       if (r)
> > +               goto unregister_gates;
> > +
> > +       platform_set_drvdata(pdev, clk_data);
> > +
> > +       return r;
> > +
> > +unregister_gates:
> > +       mtk_clk_unregister_gates(vpp1_clks, ARRAY_SIZE(vpp1_clks),
> > clk_data);
> > +free_vpp1_data:
> > +       mtk_free_clk_data(clk_data);
> > +       return r;
> > +}
> > +
> > +static int clk_mt8195_vpp1_remove(struct platform_device *pdev)
> > +{
> > +       struct device *dev = &pdev->dev;
> > +       struct device_node *node = dev->parent->of_node;
> > +       struct clk_hw_onecell_data *clk_data =
> > platform_get_drvdata(pdev);
> > +
> > +       of_clk_del_provider(node);
> > +       mtk_clk_unregister_gates(vpp1_clks, ARRAY_SIZE(vpp1_clks),
> > clk_data);
> > +       mtk_free_clk_data(clk_data);
> > +
> > +       return 0;
> > +}
> > 
> >  static struct platform_driver clk_mt8195_vpp1_drv = {
> > -       .probe = mtk_clk_simple_probe,
> > -       .remove = mtk_clk_simple_remove,
> > +       .probe = clk_mt8195_vpp1_probe,
> > +       .remove = clk_mt8195_vpp1_remove,
> >         .driver = {
> >                 .name = "clk-mt8195-vpp1",
> > -               .of_match_table = of_match_clk_mt8195_vpp1,
> >         },
> >  };
> >  builtin_platform_driver(clk_mt8195_vpp1_drv);
> > --
> > 2.18.0
> > 
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