From: Miles Chen <miles.chen@mediatek.com>
To: <wenst@chromium.org>
Cc: <chun-jie.chen@mediatek.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-clk@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>, <matthias.bgg@gmail.com>,
<mturquette@baylibre.com>, <sboyd@kernel.org>
Subject: Re: [PATCH 06/31] clk: mediatek: cpumux: Implement unregister API
Date: Wed, 26 Jan 2022 01:11:48 +0800 [thread overview]
Message-ID: <20220125171148.31102-1-miles.chen@mediatek.com> (raw)
In-Reply-To: <20220122091731.283592-7-wenst@chromium.org>
> The cpumux clk type within the MediaTek clk driver library only has
> a register function, and no corresponding unregister function. This
> means there is no way for its users to properly implement cleanup
> and removal.
>
> Add a matching unregister function for the cpumux type clk.
>
> Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
> ---
> drivers/clk/mediatek/clk-cpumux.c | 31 +++++++++++++++++++++++++++++++
> drivers/clk/mediatek/clk-cpumux.h | 3 +++
> 2 files changed, 34 insertions(+)
>
> diff --git a/drivers/clk/mediatek/clk-cpumux.c b/drivers/clk/mediatek/clk-cpumux.c
> index cab5095416b6..99a819e3673f 100644
> --- a/drivers/clk/mediatek/clk-cpumux.c
> +++ b/drivers/clk/mediatek/clk-cpumux.c
> @@ -77,6 +77,21 @@ mtk_clk_register_cpumux(const struct mtk_composite *mux,
> return clk;
> }
>
> +static void mtk_clk_unregister_cpumux(struct clk *clk)
> +{
> + struct mtk_clk_cpumux *cpumux;
> + struct clk_hw *hw;
> +
> + hw = __clk_get_hw(clk);
> + if (!hw)
> + return;
> +
> + cpumux = to_mtk_clk_cpumux(hw);
> +
> + clk_unregister(clk);
> + kfree(cpumux);
> +}
> +
> int mtk_clk_register_cpumuxes(struct device_node *node,
> const struct mtk_composite *clks, int num,
> struct clk_onecell_data *clk_data)
> @@ -106,4 +121,20 @@ int mtk_clk_register_cpumuxes(struct device_node *node,
> return 0;
> }
>
> +void mtk_clk_unregister_cpumuxes(const struct mtk_composite *clks, int num,
> + struct clk_onecell_data *clk_data)
> +{
> + int i;
> +
> + for (i = num; i > 0; i--) {
> + const struct mtk_composite *mux = &clks[i - 1];
> +
> + if (IS_ERR_OR_NULL(clk_data->clks[mux->id]))
> + continue;
> +
> + mtk_clk_unregister_cpumux(clk_data->clks[mux->id]);
> + clk_data->clks[mux->id] = ERR_PTR(-ENOENT);
> + }
> +}
> +
> MODULE_LICENSE("GPL");
> diff --git a/drivers/clk/mediatek/clk-cpumux.h b/drivers/clk/mediatek/clk-cpumux.h
> index 2aaf1afd4e5f..fda7770fd803 100644
> --- a/drivers/clk/mediatek/clk-cpumux.h
> +++ b/drivers/clk/mediatek/clk-cpumux.h
> @@ -19,4 +19,7 @@ int mtk_clk_register_cpumuxes(struct device_node *node,
> const struct mtk_composite *clks, int num,
> struct clk_onecell_data *clk_data);
>
> +void mtk_clk_unregister_cpumuxes(const struct mtk_composite *clks, int num,
> + struct clk_onecell_data *clk_data);
> +
> #endif /* __DRV_CLK_CPUMUX_H */
> --
> 2.35.0.rc0.227.g00780c9af4-goog
next prev parent reply other threads:[~2022-01-25 17:14 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-22 9:17 [PATCH 00/31] clk: mediatek: Cleanups and Improvements - Part 1 Chen-Yu Tsai
2022-01-22 9:17 ` [PATCH 01/31] clk: mediatek: Use %pe to print errors Chen-Yu Tsai
2022-01-22 9:17 ` [PATCH 02/31] clk: mediatek: gate: Consolidate gate type clk related code Chen-Yu Tsai
2022-01-24 16:04 ` Miles Chen
2022-01-22 9:17 ` [PATCH 03/31] clk: mediatek: gate: Internalize clk implementation Chen-Yu Tsai
2022-01-24 16:09 ` Miles Chen
2022-01-22 9:17 ` [PATCH 04/31] clk: mediatek: gate: Implement unregister API Chen-Yu Tsai
2022-01-24 16:21 ` Miles Chen
2022-01-22 9:17 ` [PATCH 05/31] clk: mediatek: gate: Clean up included headers Chen-Yu Tsai
2022-01-24 16:29 ` Miles Chen
2022-01-22 9:17 ` [PATCH 06/31] clk: mediatek: cpumux: Implement unregister API Chen-Yu Tsai
2022-01-25 17:11 ` Miles Chen [this message]
2022-01-22 9:17 ` [PATCH 07/31] clk: mediatek: cpumux: Internalize struct mtk_clk_cpumux Chen-Yu Tsai
2022-01-25 17:14 ` Miles Chen
2022-01-22 9:17 ` [PATCH 08/31] clk: mediatek: cpumux: Clean up included headers Chen-Yu Tsai
2022-01-25 17:16 ` Miles Chen
2022-01-22 9:17 ` [PATCH 09/31] clk: mediatek: mux: Implement unregister API Chen-Yu Tsai
2022-01-25 17:20 ` Miles Chen
2022-01-26 6:04 ` [PATCH 13/31] clk: mediatek: pll: " Miles Chen
2022-01-26 6:18 ` Chen-Yu Tsai
2022-01-22 9:17 ` [PATCH 10/31] clk: mediatek: mux: Internalize struct mtk_clk_mux Chen-Yu Tsai
2022-01-25 17:22 ` Miles Chen
2022-01-22 9:17 ` [PATCH 11/31] clk: mediatek: mux: Clean up included headers Chen-Yu Tsai
2022-01-25 17:38 ` Miles Chen
2022-01-26 6:32 ` Chen-Yu Tsai
2022-01-22 9:17 ` [PATCH 12/31] clk: mediatek: pll: Split definitions into separate header file Chen-Yu Tsai
2022-01-26 6:06 ` Miles Chen
2022-01-22 9:17 ` [PATCH 13/31] clk: mediatek: pll: Implement unregister API Chen-Yu Tsai
2022-01-22 9:17 ` [PATCH 14/31] clk: mediatek: pll: Clean up included headers Chen-Yu Tsai
2022-01-26 6:36 ` Miles Chen
2022-02-02 12:58 ` Chen-Yu Tsai
2022-01-22 9:17 ` [PATCH 15/31] clk: mediatek: Implement mtk_clk_unregister_fixed_clks() API Chen-Yu Tsai
2022-01-26 6:55 ` Miles Chen
2022-01-22 9:17 ` [PATCH 16/31] clk: mediatek: Implement mtk_clk_unregister_factors() API Chen-Yu Tsai
2022-01-26 6:56 ` Miles Chen
2022-01-22 9:17 ` [PATCH 17/31] clk: mediatek: Implement mtk_clk_unregister_divider_clks() API Chen-Yu Tsai
2022-01-26 6:58 ` Miles Chen
2022-01-22 9:17 ` [PATCH 18/31] clk: mediatek: Implement mtk_clk_unregister_composites() API Chen-Yu Tsai
2022-01-26 7:06 ` Miles Chen
2022-01-22 9:17 ` [PATCH 19/31] clk: mediatek: Add mtk_clk_simple_remove() Chen-Yu Tsai
2022-01-26 7:13 ` Miles Chen
2022-01-22 9:17 ` [PATCH 20/31] clk: mediatek: mtk: Clean up included headers Chen-Yu Tsai
2022-01-26 7:26 ` Miles Chen
2022-01-22 9:17 ` [PATCH 21/31] clk: mediatek: cpumux: Implement error handling in register API Chen-Yu Tsai
2022-01-26 7:29 ` Miles Chen
2022-01-22 9:17 ` [PATCH 22/31] clk: mediatek: gate: " Chen-Yu Tsai
2022-01-26 7:42 ` Miles Chen
2022-01-22 9:17 ` [PATCH 23/31] clk: mediatek: mux: Reverse check for existing clk to reduce nesting level Chen-Yu Tsai
2022-01-26 8:08 ` Miles Chen
2022-01-22 9:17 ` [PATCH 24/31] clk: mediatek: mux: Implement error handling in register API Chen-Yu Tsai
2022-01-26 8:09 ` Miles Chen
2022-01-22 9:17 ` [PATCH 25/31] clk: mediatek: pll: " Chen-Yu Tsai
2022-01-24 12:05 ` [PATCH] clk: mediatek: pll: fix semicolon.cocci warnings kernel test robot
2022-01-24 12:14 ` [PATCH 25/31] clk: mediatek: pll: Implement error handling in register API kernel test robot
2022-01-26 8:13 ` Miles Chen
2022-01-22 9:17 ` [PATCH 26/31] clk: mediatek: mtk: Implement error handling in register APIs Chen-Yu Tsai
2022-01-26 8:16 ` Miles Chen
2022-01-22 9:17 ` [PATCH 27/31] clk: mediatek: Unregister clks in mtk_clk_simple_probe() error path Chen-Yu Tsai
2022-01-26 8:19 ` Miles Chen
2022-01-22 9:17 ` [PATCH 28/31] clk: mediatek: mt8195: Hook up mtk_clk_simple_remove() Chen-Yu Tsai
2022-01-26 8:23 ` Miles Chen
2022-01-22 9:17 ` [PATCH 29/31] clk: mediatek: mt8195: Implement error handling in probe functions Chen-Yu Tsai
2022-01-26 8:37 ` Miles Chen
2022-01-22 9:17 ` [PATCH 30/31] clk: mediatek: mt8195: Implement remove functions Chen-Yu Tsai
2022-01-26 8:40 ` Miles Chen
2022-01-22 9:17 ` [PATCH 31/31] clk: mediatek: Warn if clk IDs are duplicated Chen-Yu Tsai
2022-01-26 8:59 ` Miles Chen
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