Re: [PATCH v3 02/31] clk: mediatek: gate: Consolidate gate type clk related code

[Chun-Jie Chen <chun-jie.chen@mediatek.com>]

On Tue, 2022-02-08 at 20:40 +0800, Chen-Yu Tsai wrote:
> Right now some bits of the gate type clk code are in clk-gate.[ch],
> but
> other bits are in clk-mtk.[ch]. This is different from the cpumux and
> mux type clks, for which all of the code are found in the same files.
> 
> Move the functions that register multiple clks from a given list,
> mtk_clk_register_gates_with_dev() and mtk_clk_register_gates(), to
> clk-gate.[ch] to consolidate all the code for the gate type clks.
> 
> This commit only moves code with minor whitespace fixups to correct
> the code style. Further improvements, such as internalizing various
> functions and structures will be done in later commits.
> 
> 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>
> 

Reviewed-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
> ---
>  drivers/clk/mediatek/clk-gate.c | 53
> ++++++++++++++++++++++++++++++++-
>  drivers/clk/mediatek/clk-gate.h | 25 ++++++++++++++++
>  drivers/clk/mediatek/clk-mtk.c  | 51 -------------------------------
>  drivers/clk/mediatek/clk-mtk.h  | 25 ----------------
>  4 files changed, 77 insertions(+), 77 deletions(-)
> 
> diff --git a/drivers/clk/mediatek/clk-gate.c
> b/drivers/clk/mediatek/clk-gate.c
> index 5d88b428565b..54921768bfba 100644
> --- a/drivers/clk/mediatek/clk-gate.c
> +++ b/drivers/clk/mediatek/clk-gate.c
> @@ -11,9 +11,9 @@
>  #include <linux/slab.h>
>  #include <linux/delay.h>
>  #include <linux/clkdev.h>
> +#include <linux/mfd/syscon.h>
>  #include <linux/module.h>
>  
> -#include "clk-mtk.h"
>  #include "clk-gate.h"
>  
>  static u32 mtk_get_clockgating(struct clk_hw *hw)
> @@ -182,4 +182,55 @@ struct clk *mtk_clk_register_gate(
>  }
>  EXPORT_SYMBOL_GPL(mtk_clk_register_gate);
>  
> +int mtk_clk_register_gates_with_dev(struct device_node *node,
> +				    const struct mtk_gate *clks, int
> num,
> +				    struct clk_onecell_data *clk_data,
> +				    struct device *dev)
> +{
> +	int i;
> +	struct clk *clk;
> +	struct regmap *regmap;
> +
> +	if (!clk_data)
> +		return -ENOMEM;
> +
> +	regmap = device_node_to_regmap(node);
> +	if (IS_ERR(regmap)) {
> +		pr_err("Cannot find regmap for %pOF: %pe\n", node,
> regmap);
> +		return PTR_ERR(regmap);
> +	}
> +
> +	for (i = 0; i < num; i++) {
> +		const struct mtk_gate *gate = &clks[i];
> +
> +		if (!IS_ERR_OR_NULL(clk_data->clks[gate->id]))
> +			continue;
> +
> +		clk = mtk_clk_register_gate(gate->name, gate-
> >parent_name,
> +					    regmap,
> +					    gate->regs->set_ofs,
> +					    gate->regs->clr_ofs,
> +					    gate->regs->sta_ofs,
> +					    gate->shift, gate->ops,
> +					    gate->flags, dev);
> +
> +		if (IS_ERR(clk)) {
> +			pr_err("Failed to register clk %s: %pe\n",
> gate->name, clk);
> +			continue;
> +		}
> +
> +		clk_data->clks[gate->id] = clk;
> +	}
> +
> +	return 0;
> +}
> +
> +int mtk_clk_register_gates(struct device_node *node,
> +			   const struct mtk_gate *clks, int num,
> +			   struct clk_onecell_data *clk_data)
> +{
> +	return mtk_clk_register_gates_with_dev(node, clks, num,
> clk_data, NULL);
> +}
> +EXPORT_SYMBOL_GPL(mtk_clk_register_gates);
> +
>  MODULE_LICENSE("GPL");
> diff --git a/drivers/clk/mediatek/clk-gate.h
> b/drivers/clk/mediatek/clk-gate.h
> index 3c3329ec54b7..432b571d23b3 100644
> --- a/drivers/clk/mediatek/clk-gate.h
> +++ b/drivers/clk/mediatek/clk-gate.h
> @@ -43,6 +43,22 @@ struct clk *mtk_clk_register_gate(
>  		unsigned long flags,
>  		struct device *dev);
>  
> +struct mtk_gate_regs {
> +	u32 sta_ofs;
> +	u32 clr_ofs;
> +	u32 set_ofs;
> +};
> +
> +struct mtk_gate {
> +	int id;
> +	const char *name;
> +	const char *parent_name;
> +	const struct mtk_gate_regs *regs;
> +	int shift;
> +	const struct clk_ops *ops;
> +	unsigned long flags;
> +};
> +
>  #define GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift,	\
>  			_ops, _flags) {				\
>  		.id = _id,					\
> @@ -57,4 +73,13 @@ struct clk *mtk_clk_register_gate(
>  #define GATE_MTK(_id, _name, _parent, _regs, _shift, _ops)		
> \
>  	GATE_MTK_FLAGS(_id, _name, _parent, _regs, _shift, _ops, 0)
>  
> +int mtk_clk_register_gates(struct device_node *node,
> +			   const struct mtk_gate *clks, int num,
> +			   struct clk_onecell_data *clk_data);
> +
> +int mtk_clk_register_gates_with_dev(struct device_node *node,
> +				    const struct mtk_gate *clks, int
> num,
> +				    struct clk_onecell_data *clk_data,
> +				    struct device *dev);
> +
>  #endif /* __DRV_CLK_GATE_H */
> diff --git a/drivers/clk/mediatek/clk-mtk.c
> b/drivers/clk/mediatek/clk-mtk.c
> index 519a461cbb6f..0c5db3c71fdd 100644
> --- a/drivers/clk/mediatek/clk-mtk.c
> +++ b/drivers/clk/mediatek/clk-mtk.c
> @@ -106,57 +106,6 @@ void mtk_clk_register_factors(const struct
> mtk_fixed_factor *clks,
>  }
>  EXPORT_SYMBOL_GPL(mtk_clk_register_factors);
>  
> -int mtk_clk_register_gates_with_dev(struct device_node *node,
> -		const struct mtk_gate *clks,
> -		int num, struct clk_onecell_data *clk_data,
> -		struct device *dev)
> -{
> -	int i;
> -	struct clk *clk;
> -	struct regmap *regmap;
> -
> -	if (!clk_data)
> -		return -ENOMEM;
> -
> -	regmap = device_node_to_regmap(node);
> -	if (IS_ERR(regmap)) {
> -		pr_err("Cannot find regmap for %pOF: %pe\n", node,
> regmap);
> -		return PTR_ERR(regmap);
> -	}
> -
> -	for (i = 0; i < num; i++) {
> -		const struct mtk_gate *gate = &clks[i];
> -
> -		if (!IS_ERR_OR_NULL(clk_data->clks[gate->id]))
> -			continue;
> -
> -		clk = mtk_clk_register_gate(gate->name, gate-
> >parent_name,
> -				regmap,
> -				gate->regs->set_ofs,
> -				gate->regs->clr_ofs,
> -				gate->regs->sta_ofs,
> -				gate->shift, gate->ops, gate->flags,
> dev);
> -
> -		if (IS_ERR(clk)) {
> -			pr_err("Failed to register clk %s: %pe\n",
> gate->name, clk);
> -			continue;
> -		}
> -
> -		clk_data->clks[gate->id] = clk;
> -	}
> -
> -	return 0;
> -}
> -
> -int mtk_clk_register_gates(struct device_node *node,
> -		const struct mtk_gate *clks,
> -		int num, struct clk_onecell_data *clk_data)
> -{
> -	return mtk_clk_register_gates_with_dev(node,
> -		clks, num, clk_data, NULL);
> -}
> -EXPORT_SYMBOL_GPL(mtk_clk_register_gates);
> -
>  struct clk *mtk_clk_register_composite(const struct mtk_composite
> *mc,
>  		void __iomem *base, spinlock_t *lock)
>  {
> diff --git a/drivers/clk/mediatek/clk-mtk.h
> b/drivers/clk/mediatek/clk-mtk.h
> index 0ff289d93452..bdec7dc5e07a 100644
> --- a/drivers/clk/mediatek/clk-mtk.h
> +++ b/drivers/clk/mediatek/clk-mtk.h
> @@ -150,31 +150,6 @@ void mtk_clk_register_composites(const struct
> mtk_composite *mcs,
>  		int num, void __iomem *base, spinlock_t *lock,
>  		struct clk_onecell_data *clk_data);
>  
> -struct mtk_gate_regs {
> -	u32 sta_ofs;
> -	u32 clr_ofs;
> -	u32 set_ofs;
> -};
> -
> -struct mtk_gate {
> -	int id;
> -	const char *name;
> -	const char *parent_name;
> -	const struct mtk_gate_regs *regs;
> -	int shift;
> -	const struct clk_ops *ops;
> -	unsigned long flags;
> -};
> -
> -int mtk_clk_register_gates(struct device_node *node,
> -			const struct mtk_gate *clks, int num,
> -			struct clk_onecell_data *clk_data);
> -
> -int mtk_clk_register_gates_with_dev(struct device_node *node,
> -		const struct mtk_gate *clks,
> -		int num, struct clk_onecell_data *clk_data,
> -		struct device *dev);
> -
>  struct mtk_clk_divider {
>  	int id;
>  	const char *name;