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Message-ID: <CAGXv+5Gid0xT=Ru0G3d-z+ED_wKWpGYSbhwiFXRv5jqJL0vC_A@mail.gmail.com>
Date: Tue, 31 Jan 2023 17:50:05 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Moudy Ho <moudy.ho@...iatek.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-clk@...r.kernel.org,
Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v6 3/4] clk: mediatek: remove MT8195 vppsys/0/1 simple_probe
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
> + 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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