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Merge branch '2_6_32rc4_fixes' of git://git.pwsan.com/linux-2.6 into omap-fixes-for-linus

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This commit is contained in:
Tony Lindgren 2009-10-14 15:46:15 -07:00
commit 1560523674
2 changed files with 45 additions and 30 deletions
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1
arch/arm/mach-omap2/clock24xx.c
View File

@ -769,6 +769,7 @@ int __init omap2_clk_init(void)
if (c->cpu & cpu_mask) {
clkdev_add(&c->lk);
clk_register(c->lk.clk);
omap2_init_clk_clkdm(c->lk.clk);
}
/* Check the MPU rate set by bootloader */

74
arch/arm/mach-omap2/clockdomain.c
View File

@ -137,6 +137,36 @@ static void _clkdm_del_autodeps(struct clockdomain *clkdm)
}
}
/*
* _omap2_clkdm_set_hwsup - set the hwsup idle transition bit
* @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.
*/
static void _omap2_clkdm_set_hwsup(struct clockdomain *clkdm, int enable)
{
u32 v;
if (cpu_is_omap24xx()) {
if (enable)
v = OMAP24XX_CLKSTCTRL_ENABLE_AUTO;
else
v = OMAP24XX_CLKSTCTRL_DISABLE_AUTO;
} else if (cpu_is_omap34xx()) {
if (enable)
v = OMAP34XX_CLKSTCTRL_ENABLE_AUTO;
else
v = OMAP34XX_CLKSTCTRL_DISABLE_AUTO;
} else {
BUG();
}
cm_rmw_mod_reg_bits(clkdm->clktrctrl_mask,
v << __ffs(clkdm->clktrctrl_mask),
clkdm->pwrdm.ptr->prcm_offs, CM_CLKSTCTRL);
}
static struct clockdomain *_clkdm_lookup(const char *name)
{
@ -456,8 +486,6 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm)
*/
void omap2_clkdm_allow_idle(struct clockdomain *clkdm)
{
u32 v;
if (!clkdm)
return;
@ -473,18 +501,7 @@ void omap2_clkdm_allow_idle(struct clockdomain *clkdm)
if (atomic_read(&clkdm->usecount) > 0)
_clkdm_add_autodeps(clkdm);
if (cpu_is_omap24xx())
v = OMAP24XX_CLKSTCTRL_ENABLE_AUTO;
else if (cpu_is_omap34xx())
v = OMAP34XX_CLKSTCTRL_ENABLE_AUTO;
else
BUG();
cm_rmw_mod_reg_bits(clkdm->clktrctrl_mask,
v << __ffs(clkdm->clktrctrl_mask),
clkdm->pwrdm.ptr->prcm_offs,
CM_CLKSTCTRL);
_omap2_clkdm_set_hwsup(clkdm, 1);
pwrdm_clkdm_state_switch(clkdm);
}
@ -500,8 +517,6 @@ void omap2_clkdm_allow_idle(struct clockdomain *clkdm)
*/
void omap2_clkdm_deny_idle(struct clockdomain *clkdm)
{
u32 v;
if (!clkdm)
return;
@ -514,16 +529,7 @@ void omap2_clkdm_deny_idle(struct clockdomain *clkdm)
pr_debug("clockdomain: disabling automatic idle transitions for %s\n",
clkdm->name);
if (cpu_is_omap24xx())
v = OMAP24XX_CLKSTCTRL_DISABLE_AUTO;
else if (cpu_is_omap34xx())
v = OMAP34XX_CLKSTCTRL_DISABLE_AUTO;
else
BUG();
cm_rmw_mod_reg_bits(clkdm->clktrctrl_mask,
v << __ffs(clkdm->clktrctrl_mask),
clkdm->pwrdm.ptr->prcm_offs, CM_CLKSTCTRL);
_omap2_clkdm_set_hwsup(clkdm, 0);
if (atomic_read(&clkdm->usecount) > 0)
_clkdm_del_autodeps(clkdm);
@ -569,10 +575,14 @@ int omap2_clkdm_clk_enable(struct clockdomain *clkdm, struct clk *clk)
v = omap2_clkdm_clktrctrl_read(clkdm);
if ((cpu_is_omap34xx() && v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ||
(cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO))
(cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO)) {
/* Disable HW transitions when we are changing deps */
_omap2_clkdm_set_hwsup(clkdm, 0);
_clkdm_add_autodeps(clkdm);
else
_omap2_clkdm_set_hwsup(clkdm, 1);
} else {
omap2_clkdm_wakeup(clkdm);
}
pwrdm_wait_transition(clkdm->pwrdm.ptr);
pwrdm_clkdm_state_switch(clkdm);
@ -623,10 +633,14 @@ int omap2_clkdm_clk_disable(struct clockdomain *clkdm, struct clk *clk)
v = omap2_clkdm_clktrctrl_read(clkdm);
if ((cpu_is_omap34xx() && v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ||
(cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO))
(cpu_is_omap24xx() && v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO)) {
/* Disable HW transitions when we are changing deps */
_omap2_clkdm_set_hwsup(clkdm, 0);
_clkdm_del_autodeps(clkdm);
else
_omap2_clkdm_set_hwsup(clkdm, 1);
} else {
omap2_clkdm_sleep(clkdm);
}
pwrdm_clkdm_state_switch(clkdm);