summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/arm/mach-omap2/clock.c6
-rw-r--r--arch/arm/mach-omap2/clockdomain.c131
-rw-r--r--arch/arm/mach-omap2/clockdomain.h4
-rw-r--r--arch/arm/mach-omap2/clockdomain2xxx_3xxx.c69
-rw-r--r--arch/arm/mach-omap2/clockdomain44xx.c28
5 files changed, 114 insertions, 124 deletions
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 2a2f15213add..e9625fcf6390 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -264,7 +264,7 @@ void omap2_clk_disable(struct clk *clk)
clk->ops->disable(clk);
if (clk->clkdm)
- omap2_clkdm_clk_disable(clk->clkdm, clk);
+ clkdm_clk_disable(clk->clkdm, clk);
if (clk->parent)
omap2_clk_disable(clk->parent);
@@ -304,7 +304,7 @@ int omap2_clk_enable(struct clk *clk)
}
if (clk->clkdm) {
- ret = omap2_clkdm_clk_enable(clk->clkdm, clk);
+ ret = clkdm_clk_enable(clk->clkdm, clk);
if (ret) {
WARN(1, "clock: %s: could not enable clockdomain %s: "
"%d\n", clk->name, clk->clkdm->name, ret);
@@ -322,7 +322,7 @@ int omap2_clk_enable(struct clk *clk)
oce_err3:
if (clk->clkdm)
- omap2_clkdm_clk_disable(clk->clkdm, clk);
+ clkdm_clk_disable(clk->clkdm, clk);
oce_err2:
if (clk->parent)
omap2_clk_disable(clk->parent);
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index 44664e7cc2a6..70d242007e0b 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -26,17 +26,8 @@
#include <linux/bitops.h>
-#include "prm2xxx_3xxx.h"
-#include "prm-regbits-24xx.h"
-#include "cm2xxx_3xxx.h"
-#include "cm-regbits-24xx.h"
-#include "cminst44xx.h"
-#include "prcm44xx.h"
-
#include <plat/clock.h>
-#include "powerdomain.h"
#include "clockdomain.h"
-#include <plat/prcm.h>
/* clkdm_list contains all registered struct clockdomains */
static LIST_HEAD(clkdm_list);
@@ -236,58 +227,6 @@ void _clkdm_del_autodeps(struct clockdomain *clkdm)
}
/**
- * _enable_hwsup - place a clockdomain into hardware-supervised idle
- * @clkdm: struct clockdomain *
- *
- * Place the clockdomain into hardware-supervised idle mode. No return
- * value.
- *
- * XXX Should this return an error if the clockdomain does not support
- * hardware-supervised idle mode?
- */
-static void _enable_hwsup(struct clockdomain *clkdm)
-{
- if (cpu_is_omap24xx())
- omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
- else if (cpu_is_omap34xx())
- omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
- else if (cpu_is_omap44xx())
- return omap4_cminst_clkdm_enable_hwsup(clkdm->prcm_partition,
- clkdm->cm_inst,
- clkdm->clkdm_offs);
- else
- BUG();
-}
-
-/**
- * _disable_hwsup - place a clockdomain into software-supervised idle
- * @clkdm: struct clockdomain *
- *
- * Place the clockdomain @clkdm into software-supervised idle mode.
- * No return value.
- *
- * XXX Should this return an error if the clockdomain does not support
- * software-supervised idle mode?
- */
-static void _disable_hwsup(struct clockdomain *clkdm)
-{
- if (cpu_is_omap24xx())
- omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
- else if (cpu_is_omap34xx())
- omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
- else if (cpu_is_omap44xx())
- return omap4_cminst_clkdm_disable_hwsup(clkdm->prcm_partition,
- clkdm->cm_inst,
- clkdm->clkdm_offs);
- else
- BUG();
-}
-
-/**
* _resolve_clkdm_deps() - resolve clkdm_names in @clkdm_deps to clkdms
* @clkdm: clockdomain that we are resolving dependencies for
* @clkdm_deps: ptr to array of struct clkdm_deps to resolve
@@ -884,7 +823,7 @@ void clkdm_deny_idle(struct clockdomain *clkdm)
/* Clockdomain-to-clock framework interface code */
/**
- * omap2_clkdm_clk_enable - add an enabled downstream clock to this clkdm
+ * clkdm_clk_enable - add an enabled downstream clock to this clkdm
* @clkdm: struct clockdomain *
* @clk: struct clk * of the enabled downstream clock
*
@@ -897,10 +836,8 @@ void clkdm_deny_idle(struct clockdomain *clkdm)
* by on-chip processors. Returns -EINVAL if passed null pointers;
* returns 0 upon success or if the clockdomain is in hwsup idle mode.
*/
-int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
+int clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
{
- bool hwsup = false;
-
/*
* XXX Rewrite this code to maintain a list of enabled
* downstream clocks for debugging purposes?
@@ -909,6 +846,9 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
if (!clkdm || !clk)
return -EINVAL;
+ if (!arch_clkdm || !arch_clkdm->clkdm_clk_enable)
+ return -EINVAL;
+
if (atomic_inc_return(&clkdm->usecount) > 1)
return 0;
@@ -917,31 +857,7 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
pr_debug("clockdomain: clkdm %s: clk %s now enabled\n", clkdm->name,
clk->name);
- if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
-
- if (!clkdm->clktrctrl_mask)
- return 0;
-
- hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
-
- } else if (cpu_is_omap44xx()) {
-
- hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition,
- clkdm->cm_inst,
- clkdm->clkdm_offs);
-
- }
-
- if (hwsup) {
- /* Disable HW transitions when we are changing deps */
- _disable_hwsup(clkdm);
- _clkdm_add_autodeps(clkdm);
- _enable_hwsup(clkdm);
- } else {
- clkdm_wakeup(clkdm);
- }
-
+ arch_clkdm->clkdm_clk_enable(clkdm);
pwrdm_wait_transition(clkdm->pwrdm.ptr);
pwrdm_clkdm_state_switch(clkdm);
@@ -949,7 +865,7 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
}
/**
- * omap2_clkdm_clk_disable - remove an enabled downstream clock from this clkdm
+ * clkdm_clk_disable - remove an enabled downstream clock from this clkdm
* @clkdm: struct clockdomain *
* @clk: struct clk * of the disabled downstream clock
*
@@ -962,10 +878,8 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
* is enabled; or returns 0 upon success or if the clockdomain is in
* hwsup idle mode.
*/
-int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
+int clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
{
- bool hwsup = false;
-
/*
* XXX Rewrite this code to maintain a list of enabled
* downstream clocks for debugging purposes?
@@ -974,6 +888,9 @@ int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
if (!clkdm || !clk)
return -EINVAL;
+ if (!arch_clkdm || !arch_clkdm->clkdm_clk_disable)
+ return -EINVAL;
+
#ifdef DEBUG
if (atomic_read(&clkdm->usecount) == 0) {
WARN_ON(1); /* underflow */
@@ -989,31 +906,7 @@ int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
pr_debug("clockdomain: clkdm %s: clk %s now disabled\n", clkdm->name,
clk->name);
- if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
-
- if (!clkdm->clktrctrl_mask)
- return 0;
-
- hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
- clkdm->clktrctrl_mask);
-
- } else if (cpu_is_omap44xx()) {
-
- hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition,
- clkdm->cm_inst,
- clkdm->clkdm_offs);
-
- }
-
- if (hwsup) {
- /* Disable HW transitions when we are changing deps */
- _disable_hwsup(clkdm);
- _clkdm_del_autodeps(clkdm);
- _enable_hwsup(clkdm);
- } else {
- clkdm_sleep(clkdm);
- }
-
+ arch_clkdm->clkdm_clk_disable(clkdm);
pwrdm_clkdm_state_switch(clkdm);
return 0;
diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 7126658d9ae1..de52f059f9e2 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -173,8 +173,8 @@ void clkdm_deny_idle(struct clockdomain *clkdm);
int clkdm_wakeup(struct clockdomain *clkdm);
int clkdm_sleep(struct clockdomain *clkdm);
-int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk);
-int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk);
+int clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk);
+int clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk);
extern void __init omap2xxx_clockdomains_init(void);
extern void __init omap3xxx_clockdomains_init(void);
diff --git a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
index 25c27a5c722f..48d0db7e6069 100644
--- a/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
+++ b/arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
@@ -146,6 +146,71 @@ static void omap2_clkdm_deny_idle(struct clockdomain *clkdm)
_clkdm_del_autodeps(clkdm);
}
+static void _enable_hwsup(struct clockdomain *clkdm)
+{
+ if (cpu_is_omap24xx())
+ omap2xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+ else if (cpu_is_omap34xx())
+ omap3xxx_cm_clkdm_enable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+}
+
+static void _disable_hwsup(struct clockdomain *clkdm)
+{
+ if (cpu_is_omap24xx())
+ omap2xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+ else if (cpu_is_omap34xx())
+ omap3xxx_cm_clkdm_disable_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+}
+
+
+static int omap2_clkdm_clk_enable(struct clockdomain *clkdm)
+{
+ bool hwsup = false;
+
+ if (!clkdm->clktrctrl_mask)
+ return 0;
+
+ hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+
+ if (hwsup) {
+ /* Disable HW transitions when we are changing deps */
+ _disable_hwsup(clkdm);
+ _clkdm_add_autodeps(clkdm);
+ _enable_hwsup(clkdm);
+ } else {
+ clkdm_wakeup(clkdm);
+ }
+
+ return 0;
+}
+
+static int omap2_clkdm_clk_disable(struct clockdomain *clkdm)
+{
+ bool hwsup = false;
+
+ if (!clkdm->clktrctrl_mask)
+ return 0;
+
+ hwsup = omap2_cm_is_clkdm_in_hwsup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
+
+ if (hwsup) {
+ /* Disable HW transitions when we are changing deps */
+ _disable_hwsup(clkdm);
+ _clkdm_del_autodeps(clkdm);
+ _enable_hwsup(clkdm);
+ } else {
+ clkdm_sleep(clkdm);
+ }
+
+ return 0;
+}
+
static int omap3_clkdm_sleep(struct clockdomain *clkdm)
{
omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs,
@@ -187,6 +252,8 @@ struct clkdm_ops omap2_clkdm_operations = {
.clkdm_wakeup = omap2_clkdm_wakeup,
.clkdm_allow_idle = omap2_clkdm_allow_idle,
.clkdm_deny_idle = omap2_clkdm_deny_idle,
+ .clkdm_clk_enable = omap2_clkdm_clk_enable,
+ .clkdm_clk_disable = omap2_clkdm_clk_disable,
};
struct clkdm_ops omap3_clkdm_operations = {
@@ -202,4 +269,6 @@ struct clkdm_ops omap3_clkdm_operations = {
.clkdm_wakeup = omap3_clkdm_wakeup,
.clkdm_allow_idle = omap3_clkdm_allow_idle,
.clkdm_deny_idle = omap3_clkdm_deny_idle,
+ .clkdm_clk_enable = omap2_clkdm_clk_enable,
+ .clkdm_clk_disable = omap2_clkdm_clk_disable,
};
diff --git a/arch/arm/mach-omap2/clockdomain44xx.c b/arch/arm/mach-omap2/clockdomain44xx.c
index a46125f15454..c0ccc4701646 100644
--- a/arch/arm/mach-omap2/clockdomain44xx.c
+++ b/arch/arm/mach-omap2/clockdomain44xx.c
@@ -41,9 +41,37 @@ static void omap4_clkdm_deny_idle(struct clockdomain *clkdm)
clkdm->cm_inst, clkdm->clkdm_offs);
}
+static int omap4_clkdm_clk_enable(struct clockdomain *clkdm)
+{
+ bool hwsup = false;
+
+ hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition,
+ clkdm->cm_inst, clkdm->clkdm_offs);
+
+ if (!hwsup)
+ clkdm_wakeup(clkdm);
+
+ return 0;
+}
+
+static int omap4_clkdm_clk_disable(struct clockdomain *clkdm)
+{
+ bool hwsup = false;
+
+ hwsup = omap4_cminst_is_clkdm_in_hwsup(clkdm->prcm_partition,
+ clkdm->cm_inst, clkdm->clkdm_offs);
+
+ if (!hwsup)
+ clkdm_sleep(clkdm);
+
+ return 0;
+}
+
struct clkdm_ops omap4_clkdm_operations = {
.clkdm_sleep = omap4_clkdm_sleep,
.clkdm_wakeup = omap4_clkdm_wakeup,
.clkdm_allow_idle = omap4_clkdm_allow_idle,
.clkdm_deny_idle = omap4_clkdm_deny_idle,
+ .clkdm_clk_enable = omap4_clkdm_clk_enable,
+ .clkdm_clk_disable = omap4_clkdm_clk_disable,
};
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-25 21:08:24 +0300