*/
#undef DEBUG
-#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/list.h>
#include <linux/bitops.h>
-#include "prm.h"
+#include "prm2xxx_3xxx.h"
#include "prm-regbits-24xx.h"
-#include "cm.h"
+#include "cm2xxx_3xxx.h"
+#include "cm-regbits-24xx.h"
+#include "cminst44xx.h"
+#include "prcm44xx.h"
#include <plat/clock.h>
-#include <plat/powerdomain.h>
-#include <plat/clockdomain.h>
+#include "powerdomain.h"
+#include "clockdomain.h"
#include <plat/prcm.h>
/* clkdm_list contains all registered struct clockdomains */
* clockdomain is in hardware-supervised mode. Meant to be called
* once at clockdomain layer initialization, since these should remain
* fixed for a particular architecture. No return value.
+ *
+ * XXX autodeps are deprecated and should be removed at the earliest
+ * opportunity
*/
static void _autodep_lookup(struct clkdm_autodep *autodep)
{
* Add the "autodep" sleep & wakeup dependencies to clockdomain 'clkdm'
* in hardware-supervised mode. Meant to be called from clock framework
* when a clock inside clockdomain 'clkdm' is enabled. No return value.
+ *
+ * XXX autodeps are deprecated and should be removed at the earliest
+ * opportunity
*/
static void _clkdm_add_autodeps(struct clockdomain *clkdm)
{
* Remove the "autodep" sleep & wakeup dependencies from clockdomain 'clkdm'
* in hardware-supervised mode. Meant to be called from clock framework
* when a clock inside clockdomain 'clkdm' is disabled. No return value.
+ *
+ * XXX autodeps are deprecated and should be removed at the earliest
+ * opportunity
*/
static void _clkdm_del_autodeps(struct clockdomain *clkdm)
{
}
}
-/*
- * _omap2_clkdm_set_hwsup - set the hwsup idle transition bit
+/**
+ * _enable_hwsup - place a clockdomain into hardware-supervised idle
* @clkdm: struct clockdomain *
- * @enable: int 0 to disable, 1 to enable
*
- * Internal helper for actually switching the bit that controls hwsup
- * idle transitions for clkdm.
+ * 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 _omap2_clkdm_set_hwsup(struct clockdomain *clkdm, int enable)
+static void _enable_hwsup(struct clockdomain *clkdm)
{
- u32 bits, v;
-
- if (cpu_is_omap24xx()) {
- if (enable)
- bits = OMAP24XX_CLKSTCTRL_ENABLE_AUTO;
- else
- bits = OMAP24XX_CLKSTCTRL_DISABLE_AUTO;
- } else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
- if (enable)
- bits = OMAP34XX_CLKSTCTRL_ENABLE_AUTO;
- else
- bits = OMAP34XX_CLKSTCTRL_DISABLE_AUTO;
- } else {
+ 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();
- }
-
- bits = bits << __ffs(clkdm->clktrctrl_mask);
-
- v = __raw_readl(clkdm->clkstctrl_reg);
- v &= ~(clkdm->clktrctrl_mask);
- v |= bits;
- __raw_writel(v, clkdm->clkstctrl_reg);
+}
+/**
+ * _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();
}
/* Public functions */
pr_debug("clockdomain: hardware will wake up %s when %s wakes "
"up\n", clkdm1->name, clkdm2->name);
- prm_set_mod_reg_bits((1 << clkdm2->dep_bit),
+ omap2_prm_set_mod_reg_bits((1 << clkdm2->dep_bit),
clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
}
pr_debug("clockdomain: hardware will no longer wake up %s "
"after %s wakes up\n", clkdm1->name, clkdm2->name);
- prm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
+ omap2_prm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP);
}
}
/* XXX It's faster to return the atomic wkdep_usecount */
- return prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP,
+ return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs, PM_WKDEP,
(1 << clkdm2->dep_bit));
}
atomic_set(&cd->wkdep_usecount, 0);
}
- prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, PM_WKDEP);
+ omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs, PM_WKDEP);
return 0;
}
pr_debug("clockdomain: will prevent %s from sleeping if %s "
"is active\n", clkdm1->name, clkdm2->name);
- cm_set_mod_reg_bits((1 << clkdm2->dep_bit),
+ omap2_cm_set_mod_reg_bits((1 << clkdm2->dep_bit),
clkdm1->pwrdm.ptr->prcm_offs,
OMAP3430_CM_SLEEPDEP);
}
"sleeping if %s is active\n", clkdm1->name,
clkdm2->name);
- cm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
+ omap2_cm_clear_mod_reg_bits((1 << clkdm2->dep_bit),
clkdm1->pwrdm.ptr->prcm_offs,
OMAP3430_CM_SLEEPDEP);
}
}
/* XXX It's faster to return the atomic sleepdep_usecount */
- return prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs,
+ return omap2_prm_read_mod_bits_shift(clkdm1->pwrdm.ptr->prcm_offs,
OMAP3430_CM_SLEEPDEP,
(1 << clkdm2->dep_bit));
}
atomic_set(&cd->sleepdep_usecount, 0);
}
- prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs,
+ omap2_prm_clear_mod_reg_bits(mask, clkdm->pwrdm.ptr->prcm_offs,
OMAP3430_CM_SLEEPDEP);
return 0;
}
-/**
- * omap2_clkdm_clktrctrl_read - read the clkdm's current state transition mode
- * @clkdm: struct clkdm * of a clockdomain
- *
- * Return the clockdomain @clkdm current state transition mode from the
- * corresponding domain CM_CLKSTCTRL register. Returns -EINVAL if @clkdm
- * is NULL or the current mode upon success.
- */
-static int omap2_clkdm_clktrctrl_read(struct clockdomain *clkdm)
-{
- u32 v;
-
- if (!clkdm)
- return -EINVAL;
-
- v = __raw_readl(clkdm->clkstctrl_reg);
- v &= clkdm->clktrctrl_mask;
- v >>= __ffs(clkdm->clktrctrl_mask);
-
- return v;
-}
-
/**
* omap2_clkdm_sleep - force clockdomain sleep transition
* @clkdm: struct clockdomain *
if (cpu_is_omap24xx()) {
- cm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
+ omap2_cm_set_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
- } else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
+ } else if (cpu_is_omap34xx()) {
+
+ omap3xxx_cm_clkdm_force_sleep(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
- u32 bits = (OMAP34XX_CLKSTCTRL_FORCE_SLEEP <<
- __ffs(clkdm->clktrctrl_mask));
+ } else if (cpu_is_omap44xx()) {
- u32 v = __raw_readl(clkdm->clkstctrl_reg);
- v &= ~(clkdm->clktrctrl_mask);
- v |= bits;
- __raw_writel(v, clkdm->clkstctrl_reg);
+ omap4_cminst_clkdm_force_sleep(clkdm->prcm_partition,
+ clkdm->cm_inst,
+ clkdm->clkdm_offs);
} else {
BUG();
if (cpu_is_omap24xx()) {
- cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
+ omap2_cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE_MASK,
clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
- } else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
+ } else if (cpu_is_omap34xx()) {
- u32 bits = (OMAP34XX_CLKSTCTRL_FORCE_WAKEUP <<
- __ffs(clkdm->clktrctrl_mask));
+ omap3xxx_cm_clkdm_force_wakeup(clkdm->pwrdm.ptr->prcm_offs,
+ clkdm->clktrctrl_mask);
- u32 v = __raw_readl(clkdm->clkstctrl_reg);
- v &= ~(clkdm->clktrctrl_mask);
- v |= bits;
- __raw_writel(v, clkdm->clkstctrl_reg);
+ } else if (cpu_is_omap44xx()) {
+
+ omap4_cminst_clkdm_force_wakeup(clkdm->prcm_partition,
+ clkdm->cm_inst,
+ clkdm->clkdm_offs);
} else {
BUG();
_clkdm_add_autodeps(clkdm);
}
- _omap2_clkdm_set_hwsup(clkdm, 1);
+ _enable_hwsup(clkdm);
pwrdm_clkdm_state_switch(clkdm);
}
pr_debug("clockdomain: disabling automatic idle transitions for %s\n",
clkdm->name);
- _omap2_clkdm_set_hwsup(clkdm, 0);
+ _disable_hwsup(clkdm);
/*
* XXX This should be removed once TI adds wakeup/sleep
*/
int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
{
- int v;
+ bool hwsup = false;
/*
* XXX Rewrite this code to maintain a list of enabled
pr_debug("clockdomain: clkdm %s: clk %s now enabled\n", clkdm->name,
clk->name);
- if (!clkdm->clkstctrl_reg)
- return 0;
+ if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
- v = omap2_clkdm_clktrctrl_read(clkdm);
+ if (!clkdm->clktrctrl_mask)
+ return 0;
- if ((cpu_is_omap34xx() && v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ||
- (cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO)) {
+ 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 */
- _omap2_clkdm_set_hwsup(clkdm, 0);
+ _disable_hwsup(clkdm);
_clkdm_add_autodeps(clkdm);
- _omap2_clkdm_set_hwsup(clkdm, 1);
+ _enable_hwsup(clkdm);
} else {
omap2_clkdm_wakeup(clkdm);
}
*/
int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
{
- int v;
+ bool hwsup = false;
/*
* XXX Rewrite this code to maintain a list of enabled
pr_debug("clockdomain: clkdm %s: clk %s now disabled\n", clkdm->name,
clk->name);
- if (!clkdm->clkstctrl_reg)
- return 0;
+ if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
- v = omap2_clkdm_clktrctrl_read(clkdm);
+ 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 ((cpu_is_omap34xx() && v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ||
- (cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO)) {
+ if (hwsup) {
/* Disable HW transitions when we are changing deps */
- _omap2_clkdm_set_hwsup(clkdm, 0);
+ _disable_hwsup(clkdm);
_clkdm_del_autodeps(clkdm);
- _omap2_clkdm_set_hwsup(clkdm, 1);
+ _enable_hwsup(clkdm);
} else {
omap2_clkdm_sleep(clkdm);
}
git.openpandora.org / pandora-kernel.git / blobdiff