diff options
| -rw-r--r-- | drivers/clk/mediatek/clk-mtk.c | 46 | ||||
| -rw-r--r-- | drivers/clk/mediatek/clk-mtk.h | 2 |
2 files changed, 48 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c index 3a6dfe445e63..869e6ae55c82 100644 --- a/drivers/clk/mediatek/clk-mtk.c +++ b/drivers/clk/mediatek/clk-mtk.c @@ -233,6 +233,32 @@ err_out: return ERR_PTR(ret); } +static void mtk_clk_unregister_composite(struct clk *clk) +{ + struct clk_hw *hw; + struct clk_composite *composite; + struct clk_mux *mux = NULL; + struct clk_gate *gate = NULL; + struct clk_divider *div = NULL; + + hw = __clk_get_hw(clk); + if (!hw) + return; + + composite = to_clk_composite(hw); + if (composite->mux_hw) + mux = to_clk_mux(composite->mux_hw); + if (composite->gate_hw) + gate = to_clk_gate(composite->gate_hw); + if (composite->rate_hw) + div = to_clk_divider(composite->rate_hw); + + clk_unregister_composite(clk); + kfree(div); + kfree(gate); + kfree(mux); +} + void mtk_clk_register_composites(const struct mtk_composite *mcs, int num, void __iomem *base, spinlock_t *lock, struct clk_onecell_data *clk_data) @@ -259,6 +285,26 @@ void mtk_clk_register_composites(const struct mtk_composite *mcs, } EXPORT_SYMBOL_GPL(mtk_clk_register_composites); +void mtk_clk_unregister_composites(const struct mtk_composite *mcs, int num, + struct clk_onecell_data *clk_data) +{ + int i; + + if (!clk_data) + return; + + for (i = num; i > 0; i--) { + const struct mtk_composite *mc = &mcs[i - 1]; + + if (IS_ERR_OR_NULL(clk_data->clks[mc->id])) + continue; + + mtk_clk_unregister_composite(clk_data->clks[mc->id]); + clk_data->clks[mc->id] = ERR_PTR(-ENOENT); + } +} +EXPORT_SYMBOL_GPL(mtk_clk_unregister_composites); + 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) diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h index e3ae22fb0334..3c3a934f53cd 100644 --- a/drivers/clk/mediatek/clk-mtk.h +++ b/drivers/clk/mediatek/clk-mtk.h @@ -153,6 +153,8 @@ struct clk *mtk_clk_register_composite(const struct mtk_composite *mc, void mtk_clk_register_composites(const struct mtk_composite *mcs, int num, void __iomem *base, spinlock_t *lock, struct clk_onecell_data *clk_data); +void mtk_clk_unregister_composites(const struct mtk_composite *mcs, int num, + struct clk_onecell_data *clk_data); struct mtk_clk_divider { int id; |