Commit bf22bae7 authored by Tero Kristo's avatar Tero Kristo
Browse files

clk: ti: autoidle: move generic autoidle handling code to clock driver 



This is no longer needed in platform directory, as the legacy clock data
is gone, so move it under TI clock driver. Some static functions are
renamed also.

Signed-off-by: default avatarTero Kristo <t-kristo@ti.com>
parent 5100349b

arch/arm/mach-omap2/clock.c

+0 −104
Original line number Diff line number Diff line
@@ -69,8 +69,6 @@ u16 cpu_mask; 
 */

static bool clkdm_control = true;



static LIST_HEAD(clk_hw_omap_clocks);



struct clk_iomap {

	struct regmap *regmap;

	void __iomem *mem;
@@ -578,108 +576,6 @@ static int __init omap_clk_setup(char *str) 
}

__setup("mpurate=", omap_clk_setup);



/**

 * omap2_init_clk_hw_omap_clocks - initialize an OMAP clock

 * @clk: struct clk * to initialize

 *

 * Add an OMAP clock @clk to the internal list of OMAP clocks.  Used

 * temporarily for autoidle handling, until this support can be

 * integrated into the common clock framework code in some way.  No

 * return value.

 */

void omap2_init_clk_hw_omap_clocks(struct clk *clk)

{

	struct clk_hw_omap *c;



	if (__clk_get_flags(clk) & CLK_IS_BASIC)

		return;



	c = to_clk_hw_omap(__clk_get_hw(clk));

	list_add(&c->node, &clk_hw_omap_clocks);

}



/**

 * omap2_clk_enable_autoidle_all - enable autoidle on all OMAP clocks that

 * support it

 *

 * Enable clock autoidle on all OMAP clocks that have allow_idle

 * function pointers associated with them.  This function is intended

 * to be temporary until support for this is added to the common clock

 * code.  Returns 0.

 */

int omap2_clk_enable_autoidle_all(void)

{

	struct clk_hw_omap *c;



	list_for_each_entry(c, &clk_hw_omap_clocks, node)

		if (c->ops && c->ops->allow_idle)

			c->ops->allow_idle(c);



	of_ti_clk_allow_autoidle_all();



	return 0;

}



/**

 * omap2_clk_disable_autoidle_all - disable autoidle on all OMAP clocks that

 * support it

 *

 * Disable clock autoidle on all OMAP clocks that have allow_idle

 * function pointers associated with them.  This function is intended

 * to be temporary until support for this is added to the common clock

 * code.  Returns 0.

 */

int omap2_clk_disable_autoidle_all(void)

{

	struct clk_hw_omap *c;



	list_for_each_entry(c, &clk_hw_omap_clocks, node)

		if (c->ops && c->ops->deny_idle)

			c->ops->deny_idle(c);



	of_ti_clk_deny_autoidle_all();



	return 0;

}



/**

 * omap2_clk_deny_idle - disable autoidle on an OMAP clock

 * @clk: struct clk * to disable autoidle for

 *

 * Disable autoidle on an OMAP clock.

 */

int omap2_clk_deny_idle(struct clk *clk)

{

	struct clk_hw_omap *c;



	if (__clk_get_flags(clk) & CLK_IS_BASIC)

		return -EINVAL;



	c = to_clk_hw_omap(__clk_get_hw(clk));

	if (c->ops && c->ops->deny_idle)

		c->ops->deny_idle(c);

	return 0;

}



/**

 * omap2_clk_allow_idle - enable autoidle on an OMAP clock

 * @clk: struct clk * to enable autoidle for

 *

 * Enable autoidle on an OMAP clock.

 */

int omap2_clk_allow_idle(struct clk *clk)

{

	struct clk_hw_omap *c;



	if (__clk_get_flags(clk) & CLK_IS_BASIC)

		return -EINVAL;



	c = to_clk_hw_omap(__clk_get_hw(clk));

	if (c->ops && c->ops->allow_idle)

		c->ops->allow_idle(c);

	return 0;

}



/**

 * omap2_clk_enable_init_clocks - prepare & enable a list of clocks

 * @clk_names: ptr to an array of strings of clock names to enable

arch/arm/mach-omap2/clock.h

+0 −3
Original line number Diff line number Diff line
@@ -186,9 +186,6 @@ void omap3_dpll_deny_idle(struct clk_hw_omap *clk); 


void __init omap2_clk_disable_clkdm_control(void);



int omap2_clk_enable_autoidle_all(void);

int omap2_clk_allow_idle(struct clk *clk);

int omap2_clk_deny_idle(struct clk *clk);

int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name);

void omap2_clk_print_new_rates(const char *hfclkin_ck_name,

			       const char *core_ck_name,

drivers/clk/ti/autoidle.c

+111 −8
Original line number Diff line number Diff line
@@ -33,8 +33,47 @@ struct clk_ti_autoidle { 
#define AUTOIDLE_LOW		0x1



static LIST_HEAD(autoidle_clks);

static LIST_HEAD(clk_hw_omap_clocks);



static void ti_allow_autoidle(struct clk_ti_autoidle *clk)

/**

 * omap2_clk_deny_idle - disable autoidle on an OMAP clock

 * @clk: struct clk * to disable autoidle for

 *

 * Disable autoidle on an OMAP clock.

 */

int omap2_clk_deny_idle(struct clk *clk)

{

	struct clk_hw_omap *c;



	if (__clk_get_flags(clk) & CLK_IS_BASIC)

		return -EINVAL;



	c = to_clk_hw_omap(__clk_get_hw(clk));

	if (c->ops && c->ops->deny_idle)

		c->ops->deny_idle(c);

	return 0;

}



/**

 * omap2_clk_allow_idle - enable autoidle on an OMAP clock

 * @clk: struct clk * to enable autoidle for

 *

 * Enable autoidle on an OMAP clock.

 */

int omap2_clk_allow_idle(struct clk *clk)

{

	struct clk_hw_omap *c;



	if (__clk_get_flags(clk) & CLK_IS_BASIC)

		return -EINVAL;



	c = to_clk_hw_omap(__clk_get_hw(clk));

	if (c->ops && c->ops->allow_idle)

		c->ops->allow_idle(c);

	return 0;

}



static void _allow_autoidle(struct clk_ti_autoidle *clk)

{

	u32 val;
@@ -48,7 +87,7 @@ static void ti_allow_autoidle(struct clk_ti_autoidle *clk) 
	ti_clk_ll_ops->clk_writel(val, clk->reg);

}



static void ti_deny_autoidle(struct clk_ti_autoidle *clk)

static void _deny_autoidle(struct clk_ti_autoidle *clk)

{

	u32 val;
@@ -63,31 +102,31 @@ static void ti_deny_autoidle(struct clk_ti_autoidle *clk) 
}



/**

 * of_ti_clk_allow_autoidle_all - enable autoidle for all clocks

 * _clk_generic_allow_autoidle_all - enable autoidle for all clocks

 *

 * Enables hardware autoidle for all registered DT clocks, which have

 * the feature.

 */

void of_ti_clk_allow_autoidle_all(void)

static void _clk_generic_allow_autoidle_all(void)

{

	struct clk_ti_autoidle *c;



	list_for_each_entry(c, &autoidle_clks, node)

		ti_allow_autoidle(c);

		_allow_autoidle(c);

}



/**

 * of_ti_clk_deny_autoidle_all - disable autoidle for all clocks

 * _clk_generic_deny_autoidle_all - disable autoidle for all clocks

 *

 * Disables hardware autoidle for all registered DT clocks, which have

 * the feature.

 */

void of_ti_clk_deny_autoidle_all(void)

static void _clk_generic_deny_autoidle_all(void)

{

	struct clk_ti_autoidle *c;



	list_for_each_entry(c, &autoidle_clks, node)

		ti_deny_autoidle(c);

		_deny_autoidle(c);

}



/**
@@ -131,3 +170,67 @@ int __init of_ti_clk_autoidle_setup(struct device_node *node) 


	return 0;

}



/**

 * omap2_init_clk_hw_omap_clocks - initialize an OMAP clock

 * @clk: struct clk * to initialize

 *

 * Add an OMAP clock @clk to the internal list of OMAP clocks.  Used

 * temporarily for autoidle handling, until this support can be

 * integrated into the common clock framework code in some way.  No

 * return value.

 */

void omap2_init_clk_hw_omap_clocks(struct clk *clk)

{

	struct clk_hw_omap *c;



	if (__clk_get_flags(clk) & CLK_IS_BASIC)

		return;



	c = to_clk_hw_omap(__clk_get_hw(clk));

	list_add(&c->node, &clk_hw_omap_clocks);

}



/**

 * omap2_clk_enable_autoidle_all - enable autoidle on all OMAP clocks that

 * support it

 *

 * Enable clock autoidle on all OMAP clocks that have allow_idle

 * function pointers associated with them.  This function is intended

 * to be temporary until support for this is added to the common clock

 * code.  Returns 0.

 */

int omap2_clk_enable_autoidle_all(void)

{

	struct clk_hw_omap *c;



	list_for_each_entry(c, &clk_hw_omap_clocks, node)

		if (c->ops && c->ops->allow_idle)

			c->ops->allow_idle(c);



	_clk_generic_allow_autoidle_all();



	return 0;

}



/**

 * omap2_clk_disable_autoidle_all - disable autoidle on all OMAP clocks that

 * support it

 *

 * Disable clock autoidle on all OMAP clocks that have allow_idle

 * function pointers associated with them.  This function is intended

 * to be temporary until support for this is added to the common clock

 * code.  Returns 0.

 */

int omap2_clk_disable_autoidle_all(void)

{

	struct clk_hw_omap *c;



	list_for_each_entry(c, &clk_hw_omap_clocks, node)

		if (c->ops && c->ops->deny_idle)

			c->ops->deny_idle(c);



	_clk_generic_deny_autoidle_all();



	return 0;

}

drivers/clk/ti/clock.h

+3 −0
Original line number Diff line number Diff line
@@ -169,6 +169,9 @@ void ti_clk_patch_legacy_clks(struct ti_clk **patch); 
struct clk *ti_clk_register_clk(struct ti_clk *setup);

int ti_clk_register_legacy_clks(struct ti_clk_alias *clks);



void omap2_init_clk_hw_omap_clocks(struct clk *clk);

int of_ti_clk_autoidle_setup(struct device_node *node);



extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;

extern const struct clk_hw_omap_ops clkhwops_iclk;

extern const struct clk_hw_omap_ops clkhwops_iclk_wait;

drivers/clk/ti/fixed-factor.c

+2 −0
Original line number Diff line number Diff line
@@ -22,6 +22,8 @@ 
#include <linux/of_address.h>

#include <linux/clk/ti.h>



#include "clock.h"



#undef pr_fmt

#define pr_fmt(fmt) "%s: " fmt, __func__