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Commit 6dbde947 authored by Tero Kristo's avatar Tero Kristo
Browse files

clk: ti: divider: convert TI divider clock to use its own data representation 



Instead of using the generic clock driver data struct, use one internal
for the TI clock driver itself. This allows modifying the register access
parts in subsequent patch.

Signed-off-by: default avatarTero Kristo <t-kristo@ti.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
parent d83bc5b6

drivers/clk/ti/clock.h

+11 −0
Original line number Diff line number Diff line
@@ -16,6 +16,17 @@ 
#ifndef __DRIVERS_CLK_TI_CLOCK__

#define __DRIVERS_CLK_TI_CLOCK__



struct clk_omap_divider {

	struct clk_hw		hw;

	void __iomem		*reg;

	u8			shift;

	u8			width;

	u8			flags;

	const struct clk_div_table	*table;

};



#define to_clk_omap_divider(_hw) container_of(_hw, struct clk_omap_divider, hw)



struct clk_omap_mux {

	struct clk_hw		hw;

	void __iomem		*reg;

drivers/clk/ti/divider.c

+11 −11
Original line number Diff line number Diff line
@@ -39,7 +39,7 @@ static unsigned int _get_table_maxdiv(const struct clk_div_table *table) 
	return maxdiv;

}



static unsigned int _get_maxdiv(struct clk_divider *divider)

static unsigned int _get_maxdiv(struct clk_omap_divider *divider)

{

	if (divider->flags & CLK_DIVIDER_ONE_BASED)

		return div_mask(divider);
@@ -61,7 +61,7 @@ static unsigned int _get_table_div(const struct clk_div_table *table, 
	return 0;

}



static unsigned int _get_div(struct clk_divider *divider, unsigned int val)

static unsigned int _get_div(struct clk_omap_divider *divider, unsigned int val)

{

	if (divider->flags & CLK_DIVIDER_ONE_BASED)

		return val;
@@ -83,7 +83,7 @@ static unsigned int _get_table_val(const struct clk_div_table *table, 
	return 0;

}



static unsigned int _get_val(struct clk_divider *divider, u8 div)

static unsigned int _get_val(struct clk_omap_divider *divider, u8 div)

{

	if (divider->flags & CLK_DIVIDER_ONE_BASED)

		return div;
@@ -97,7 +97,7 @@ static unsigned int _get_val(struct clk_divider *divider, u8 div) 
static unsigned long ti_clk_divider_recalc_rate(struct clk_hw *hw,

						unsigned long parent_rate)

{

	struct clk_divider *divider = to_clk_divider(hw);

	struct clk_omap_divider *divider = to_clk_omap_divider(hw);

	unsigned int div, val;



	val = ti_clk_ll_ops->clk_readl(divider->reg) >> divider->shift;
@@ -131,7 +131,7 @@ static bool _is_valid_table_div(const struct clk_div_table *table, 
	return false;

}



static bool _is_valid_div(struct clk_divider *divider, unsigned int div)

static bool _is_valid_div(struct clk_omap_divider *divider, unsigned int div)

{

	if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)

		return is_power_of_2(div);
@@ -172,7 +172,7 @@ static int _div_round(const struct clk_div_table *table, 
static int ti_clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,

				  unsigned long *best_parent_rate)

{

	struct clk_divider *divider = to_clk_divider(hw);

	struct clk_omap_divider *divider = to_clk_omap_divider(hw);

	int i, bestdiv = 0;

	unsigned long parent_rate, best = 0, now, maxdiv;

	unsigned long parent_rate_saved = *best_parent_rate;
@@ -239,14 +239,14 @@ static long ti_clk_divider_round_rate(struct clk_hw *hw, unsigned long rate, 
static int ti_clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,

				   unsigned long parent_rate)

{

	struct clk_divider *divider;

	struct clk_omap_divider *divider;

	unsigned int div, value;

	u32 val;



	if (!hw || !rate)

		return -EINVAL;



	divider = to_clk_divider(hw);

	divider = to_clk_omap_divider(hw);



	div = DIV_ROUND_UP(parent_rate, rate);

	value = _get_val(divider, div);
@@ -278,7 +278,7 @@ static struct clk *_register_divider(struct device *dev, const char *name, 
				     u8 shift, u8 width, u8 clk_divider_flags,

				     const struct clk_div_table *table)

{

	struct clk_divider *div;

	struct clk_omap_divider *div;

	struct clk *clk;

	struct clk_init_data init;
@@ -379,7 +379,7 @@ _get_div_table_from_setup(struct ti_clk_divider *setup, u8 *width) 


struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup)

{

	struct clk_divider *div;

	struct clk_omap_divider *div;

	struct clk_omap_reg *reg;



	if (!setup)
@@ -617,7 +617,7 @@ CLK_OF_DECLARE(divider_clk, "ti,divider-clock", of_ti_divider_clk_setup); 


static void __init of_ti_composite_divider_clk_setup(struct device_node *node)

{

	struct clk_divider *div;

	struct clk_omap_divider *div;

	u32 val;



	div = kzalloc(sizeof(*div), GFP_KERNEL);

drivers/clk/ti/gate.c

+2 −2
Original line number Diff line number Diff line
@@ -62,7 +62,7 @@ static const struct clk_ops omap_gate_clk_hsdiv_restore_ops = { 
 */

static int omap36xx_gate_clk_enable_with_hsdiv_restore(struct clk_hw *hw)

{

	struct clk_divider *parent;

	struct clk_omap_divider *parent;

	struct clk_hw *parent_hw;

	u32 dummy_v, orig_v;

	int ret;
@@ -72,7 +72,7 @@ static int omap36xx_gate_clk_enable_with_hsdiv_restore(struct clk_hw *hw) 


	/* Parent is the x2 node, get parent of parent for the m2 div */

	parent_hw = clk_hw_get_parent(clk_hw_get_parent(hw));

	parent = to_clk_divider(parent_hw);

	parent = to_clk_omap_divider(parent_hw);



	/* Restore the dividers */

	if (!ret) {