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clk: mediatek: Implement mtk_clk_unregister_divider_clks() API

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mtk_clk_register_divider_clks(), as the name suggests, is used to register
a given list of divider clks. However it is lacking a counterpart
unregister API.

Implement said unregister API so that the various clock platform drivers
can utilize it to do proper unregistration, cleanup and removal.

In the header file, the register function's declaration is also
reformatted to fit code style guidelines.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220208124034.414635-18-wenst@chromium.org
Reviewed-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Chen-Yu Tsai 2022-02-08 20:40:20 +08:00 committed by Stephen Boyd
parent 1c6d6b69ba
commit b87385eb5a
2 changed files with 24 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/clk/mediatek/clk-mtk.c
View File

@ -286,6 +286,25 @@ void mtk_clk_register_dividers(const struct mtk_clk_divider *mcds,
}
}
void mtk_clk_unregister_dividers(const struct mtk_clk_divider *mcds, int num,
struct clk_onecell_data *clk_data)
{
int i;
if (!clk_data)
return;
for (i = num; i > 0; i--) {
const struct mtk_clk_divider *mcd = &mcds[i - 1];
if (IS_ERR_OR_NULL(clk_data->clks[mcd->id]))
continue;
clk_unregister_divider(clk_data->clks[mcd->id]);
clk_data->clks[mcd->id] = ERR_PTR(-ENOENT);
}
}
int mtk_clk_simple_probe(struct platform_device *pdev)
{
const struct mtk_clk_desc *mcd;

8
drivers/clk/mediatek/clk-mtk.h
View File

@ -176,9 +176,11 @@ struct mtk_clk_divider {
.div_width = _width, \
}
void mtk_clk_register_dividers(const struct mtk_clk_divider *mcds,
int num, void __iomem *base, spinlock_t *lock,
struct clk_onecell_data *clk_data);
void mtk_clk_register_dividers(const struct mtk_clk_divider *mcds, int num,
void __iomem *base, spinlock_t *lock,
struct clk_onecell_data *clk_data);
void mtk_clk_unregister_dividers(const struct mtk_clk_divider *mcds, int num,
struct clk_onecell_data *clk_data);
struct clk_onecell_data *mtk_alloc_clk_data(unsigned int clk_num);
void mtk_free_clk_data(struct clk_onecell_data *clk_data);