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OMAP: clockdomain: Infrastructure to put arch specific code 

Put infrastructure in place, so arch specific func pointers
can be hooked up to the platform-independent part of the
framework.
This is in preparation of splitting the clockdomain framework into
platform-independent part (for all omaps) and platform-specific
parts.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
This commit is contained in:
Rajendra Nayak 2011-02-25 16:06:47 -07:00 committed by Paul Walmsley
parent 3673d1ef5d
commit 32d4034eea
4 changed files with 47 additions and 4 deletions
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10
arch/arm/mach-omap2/clockdomain.c
View File

@ -44,6 +44,7 @@ static LIST_HEAD(clkdm_list);
/* array of clockdomain deps to be added/removed when clkdm in hwsup mode */
static struct clkdm_autodep *autodeps;
static struct clkdm_ops *arch_clkdm;
/* Private functions */
@ -292,6 +293,7 @@ static void _disable_hwsup(struct clockdomain *clkdm)
* clkdm_init - set up the clockdomain layer
* @clkdms: optional pointer to an array of clockdomains to register
* @init_autodeps: optional pointer to an array of autodeps to register
* @custom_funcs: func pointers for arch specfic implementations
*
* Set up internal state. If a pointer to an array of clockdomains
* @clkdms was supplied, loop through the list of clockdomains,
@ -300,12 +302,18 @@ static void _disable_hwsup(struct clockdomain *clkdm)
* @init_autodeps was provided, register those. No return value.
*/
void clkdm_init(struct clockdomain **clkdms,
struct clkdm_autodep *init_autodeps)
struct clkdm_autodep *init_autodeps,
struct clkdm_ops *custom_funcs)
{
struct clockdomain **c = NULL;
struct clockdomain *clkdm;
struct clkdm_autodep *autodep = NULL;
if (!custom_funcs)
WARN(1, "No custom clkdm functions registered\n");
else
arch_clkdm = custom_funcs;
if (clkdms)
for (c = clkdms; *c; c++)
_clkdm_register(*c);

37
arch/arm/mach-omap2/clockdomain.h
View File

@ -116,7 +116,42 @@ struct clockdomain {
struct list_head node;
};
void clkdm_init(struct clockdomain **clkdms, struct clkdm_autodep *autodeps);
/**
* struct clkdm_ops - Arch specfic function implementations
* @clkdm_add_wkdep: Add a wakeup dependency between clk domains
* @clkdm_del_wkdep: Delete a wakeup dependency between clk domains
* @clkdm_read_wkdep: Read wakeup dependency state between clk domains
* @clkdm_clear_all_wkdeps: Remove all wakeup dependencies from the clk domain
* @clkdm_add_sleepdep: Add a sleep dependency between clk domains
* @clkdm_del_sleepdep: Delete a sleep dependency between clk domains
* @clkdm_read_sleepdep: Read sleep dependency state between clk domains
* @clkdm_clear_all_sleepdeps: Remove all sleep dependencies from the clk domain
* @clkdm_sleep: Force a clockdomain to sleep
* @clkdm_wakeup: Force a clockdomain to wakeup
* @clkdm_allow_idle: Enable hw supervised idle transitions for clock domain
* @clkdm_deny_idle: Disable hw supervised idle transitions for clock domain
* @clkdm_clk_enable: Put the clkdm in right state for a clock enable
* @clkdm_clk_disable: Put the clkdm in right state for a clock disable
*/
struct clkdm_ops {
int (*clkdm_add_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
int (*clkdm_del_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
int (*clkdm_read_wkdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
int (*clkdm_clear_all_wkdeps)(struct clockdomain *clkdm);
int (*clkdm_add_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
int (*clkdm_del_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
int (*clkdm_read_sleepdep)(struct clockdomain *clkdm1, struct clockdomain *clkdm2);
int (*clkdm_clear_all_sleepdeps)(struct clockdomain *clkdm);
int (*clkdm_sleep)(struct clockdomain *clkdm);
int (*clkdm_wakeup)(struct clockdomain *clkdm);
void (*clkdm_allow_idle)(struct clockdomain *clkdm);
void (*clkdm_deny_idle)(struct clockdomain *clkdm);
int (*clkdm_clk_enable)(struct clockdomain *clkdm);
int (*clkdm_clk_disable)(struct clockdomain *clkdm);
};
void clkdm_init(struct clockdomain **clkdms, struct clkdm_autodep *autodeps,
struct clkdm_ops *custom_funcs);
struct clockdomain *clkdm_lookup(const char *name);
int clkdm_for_each(int (*fn)(struct clockdomain *clkdm, void *user),

2
arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
View File

@ -856,5 +856,5 @@ static struct clockdomain *clockdomains_omap2[] __initdata = {
void __init omap2_clockdomains_init(void)
{
clkdm_init(clockdomains_omap2, clkdm_autodeps);
clkdm_init(clockdomains_omap2, clkdm_autodeps, NULL);
}

2
arch/arm/mach-omap2/clockdomains44xx_data.c
View File

@ -305,5 +305,5 @@ static struct clockdomain *clockdomains_omap44xx[] __initdata = {
void __init omap44xx_clockdomains_init(void)
{
clkdm_init(clockdomains_omap44xx, NULL);
clkdm_init(clockdomains_omap44xx, NULL, NULL);
}