diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mtk.h')
| -rw-r--r-- | drivers/clk/mediatek/clk-mtk.h | 75 |
1 files changed, 71 insertions, 4 deletions
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h index 63ae7941aa92..5417b9264e6d 100644 --- a/drivers/clk/mediatek/clk-mtk.h +++ b/drivers/clk/mediatek/clk-mtk.h @@ -20,8 +20,29 @@ #define MHZ (1000 * 1000) +#define MTK_WAIT_HWV_DONE_US 30 + struct platform_device; +/* + * We need the clock IDs to start from zero but to maintain devicetree + * backwards compatibility we can't change bindings to start from zero. + * Only a few platforms are affected, so we solve issues given by the + * commonized MTK clocks probe function(s) by adding a dummy clock at + * the beginning where needed. + */ +#define CLK_DUMMY 0 + +extern const struct clk_ops mtk_clk_dummy_ops; +extern const struct mtk_gate_regs cg_regs_dummy; + +#define GATE_DUMMY(_id, _name) { \ + .id = _id, \ + .name = _name, \ + .regs = &cg_regs_dummy, \ + .ops = &mtk_clk_dummy_ops, \ + } + struct mtk_fixed_clk { int id; const char *name; @@ -47,16 +68,21 @@ struct mtk_fixed_factor { const char *parent_name; int mult; int div; + unsigned long flags; }; -#define FACTOR(_id, _name, _parent, _mult, _div) { \ +#define FACTOR_FLAGS(_id, _name, _parent, _mult, _div, _fl) { \ .id = _id, \ .name = _name, \ .parent_name = _parent, \ .mult = _mult, \ .div = _div, \ + .flags = _fl, \ } +#define FACTOR(_id, _name, _parent, _mult, _div) \ + FACTOR_FLAGS(_id, _name, _parent, _mult, _div, CLK_SET_RATE_PARENT) + int mtk_clk_register_factors(const struct mtk_fixed_factor *clks, int num, struct clk_hw_onecell_data *clk_data); void mtk_clk_unregister_factors(const struct mtk_fixed_factor *clks, int num, @@ -149,7 +175,27 @@ struct mtk_composite { .flags = 0, \ } -int mtk_clk_register_composites(const struct mtk_composite *mcs, int num, +#define MUX_DIV_GATE(_id, _name, _parents, \ + _mux_reg, _mux_shift, _mux_width, \ + _div_reg, _div_shift, _div_width, \ + _gate_reg, _gate_shift) { \ + .id = _id, \ + .name = _name, \ + .parent_names = _parents, \ + .num_parents = ARRAY_SIZE(_parents), \ + .mux_reg = _mux_reg, \ + .mux_shift = _mux_shift, \ + .mux_width = _mux_width, \ + .divider_reg = _div_reg, \ + .divider_shift = _div_shift, \ + .divider_width = _div_width, \ + .gate_reg = _gate_reg, \ + .gate_shift = _gate_shift, \ + .flags = CLK_SET_RATE_PARENT, \ + } + +int mtk_clk_register_composites(struct device *dev, + const struct mtk_composite *mcs, int num, void __iomem *base, spinlock_t *lock, struct clk_hw_onecell_data *clk_data); void mtk_clk_unregister_composites(const struct mtk_composite *mcs, int num, @@ -177,7 +223,8 @@ struct mtk_clk_divider { .div_width = _width, \ } -int mtk_clk_register_dividers(const struct mtk_clk_divider *mcds, int num, +int mtk_clk_register_dividers(struct device *dev, + const struct mtk_clk_divider *mcds, int num, void __iomem *base, spinlock_t *lock, struct clk_hw_onecell_data *clk_data); void mtk_clk_unregister_dividers(const struct mtk_clk_divider *mcds, int num, @@ -195,10 +242,30 @@ void mtk_clk_unregister_ref2usb_tx(struct clk_hw *hw); struct mtk_clk_desc { const struct mtk_gate *clks; size_t num_clks; + const struct mtk_composite *composite_clks; + size_t num_composite_clks; + const struct mtk_clk_divider *divider_clks; + size_t num_divider_clks; + const struct mtk_fixed_clk *fixed_clks; + size_t num_fixed_clks; + const struct mtk_fixed_factor *factor_clks; + size_t num_factor_clks; + const struct mtk_mux *mux_clks; + size_t num_mux_clks; const struct mtk_clk_rst_desc *rst_desc; + spinlock_t *clk_lock; + bool shared_io; + + int (*clk_notifier_func)(struct device *dev, struct clk *clk); + unsigned int mfg_clk_idx; + + bool need_runtime_pm; }; +int mtk_clk_pdev_probe(struct platform_device *pdev); +void mtk_clk_pdev_remove(struct platform_device *pdev); int mtk_clk_simple_probe(struct platform_device *pdev); -int mtk_clk_simple_remove(struct platform_device *pdev); +void mtk_clk_simple_remove(struct platform_device *pdev); +struct regmap *mtk_clk_get_hwv_regmap(struct device_node *node); #endif /* __DRV_CLK_MTK_H */ |