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Date: Tue, 7 Feb 2023 01:58:42 +0000
From: Moudy Ho (何宗原) <Moudy.Ho@...iatek.com>
To: "wenst@...omium.org" <wenst@...omium.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"mturquette@...libre.com" <mturquette@...libre.com>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"sboyd@...nel.org" <sboyd@...nel.org>,
"linux-mediatek@...ts.infradead.org"
<linux-mediatek@...ts.infradead.org>,
Project_Global_Chrome_Upstream_Group
<Project_Global_Chrome_Upstream_Group@...iatek.com>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"krzysztof.kozlowski+dt@...aro.org"
<krzysztof.kozlowski+dt@...aro.org>,
"matthias.bgg@...il.com" <matthias.bgg@...il.com>,
"linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>
Subject: Re: [PATCH v6 3/4] clk: mediatek: remove MT8195 vppsys/0/1
simple_probe
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@...iatek.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@...iatek.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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