OMAP3: PM: enable gptimer12 as a wakeup source

[linux-2.6-omap-h63xx.git] / arch / arm / mach-omap2 / pm34xx.c

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 01b637a8f1809c43f26e884818630f349c0dce2b..8e3c257f1235b422f770cb567cf360be50232028 100644 (file)
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -109,7 +109,7 @@ static irqreturn_t prcm_interrupt_handler (int irq, void *dev_id)
                cm_write_mod_reg(fclk, OMAP3430_PER_MOD, CM_FCLKEN);
        }
 
-       if (system_rev > OMAP3430_REV_ES1_0) {
+       if (omap_rev() > OMAP3430_REV_ES1_0) {
                /* USBHOST */
                wkst = prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, PM_WKST);
                if (wkst) {
@@ -194,7 +194,7 @@ static int omap3_fclks_active(void)
 
        fck_core1 = cm_read_mod_reg(CORE_MOD,
                                    CM_FCLKEN1);
-       if (system_rev > OMAP3430_REV_ES1_0) {
+       if (omap_rev() > OMAP3430_REV_ES1_0) {
                fck_core3 = cm_read_mod_reg(CORE_MOD,
                                            OMAP3430ES2_CM_FCLKEN3);
                fck_sgx = cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
@@ -227,39 +227,33 @@ static int omap3_can_sleep(void)
        return 1;
 }
 
-/* _clkdm_deny_idle - private callback function used by set_pwrdm_state() */
-static int _clkdm_deny_idle(struct powerdomain *pwrdm,
-                           struct clockdomain *clkdm)
-{
-       omap2_clkdm_deny_idle(clkdm);
-       return 0;
-}
-
-/* _clkdm_allow_idle - private callback function used by set_pwrdm_state() */
-static int _clkdm_allow_idle(struct powerdomain *pwrdm,
-                            struct clockdomain *clkdm)
-{
-       omap2_clkdm_allow_idle(clkdm);
-       return 0;
-}
-
 /* This sets pwrdm state (other than mpu & core. Currently only ON &
  * RET are supported. Function is assuming that clkdm doesn't have
  * hw_sup mode enabled. */
 static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 {
        u32 cur_state;
+       int sleep_switch = 0;
        int ret = 0;
 
        if (pwrdm == NULL || IS_ERR(pwrdm))
                return -EINVAL;
 
-       cur_state = pwrdm_read_next_pwrst(pwrdm);
+       while (!(pwrdm->pwrsts & (1 << state))) {
+               if (state == PWRDM_POWER_OFF)
+                       return ret;
+               state--;
+       }
 
+       cur_state = pwrdm_read_next_pwrst(pwrdm);
        if (cur_state == state)
                return ret;
 
-       pwrdm_for_each_clkdm(pwrdm, _clkdm_deny_idle);
+       if (pwrdm_read_pwrst(pwrdm) < PWRDM_POWER_ON) {
+               omap2_clkdm_wakeup(pwrdm->pwrdm_clkdms[0]);
+               sleep_switch = 1;
+               pwrdm_wait_transition(pwrdm);
+       }
 
        ret = pwrdm_set_next_pwrst(pwrdm, state);
        if (ret) {
@@ -268,7 +262,10 @@ static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
                goto err;
        }
 
-       pwrdm_for_each_clkdm(pwrdm, _clkdm_allow_idle);
+       if (sleep_switch) {
+               omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]);
+               pwrdm_wait_transition(pwrdm);
+       }
 
 err:
        return ret;
@@ -322,7 +319,7 @@ restore:
        list_for_each_entry(pwrst, &pwrst_list, node) {
                set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state);
                state = pwrdm_read_prev_pwrst(pwrst->pwrdm);
-               if (state != pwrst->next_state) {
+               if (state > pwrst->next_state) {
                        printk(KERN_INFO "Powerdomain (%s) didn't enter "
                               "target state %d\n",
                               pwrst->pwrdm->name, pwrst->next_state);
@@ -376,7 +373,7 @@ static void __init prcm_setup_regs(void)
        prm_write_mod_reg(0, OMAP3430_NEON_MOD, PM_WKDEP);
        prm_write_mod_reg(0, OMAP3430_CAM_MOD, PM_WKDEP);
        prm_write_mod_reg(0, OMAP3430_PER_MOD, PM_WKDEP);
-       if (system_rev > OMAP3430_REV_ES1_0) {
+       if (omap_rev() > OMAP3430_REV_ES1_0) {
                prm_write_mod_reg(0, OMAP3430ES2_SGX_MOD, PM_WKDEP);
                prm_write_mod_reg(0, OMAP3430ES2_USBHOST_MOD, PM_WKDEP);
        } else
@@ -426,7 +423,7 @@ static void __init prcm_setup_regs(void)
                OMAP3430_AUTO_DES1,
                CORE_MOD, CM_AUTOIDLE2);
 
-       if (system_rev > OMAP3430_REV_ES1_0) {
+       if (omap_rev() > OMAP3430_REV_ES1_0) {
                cm_write_mod_reg(
                        OMAP3430ES2_AUTO_USBTLL,
                        CORE_MOD, CM_AUTOIDLE3);
@@ -473,7 +470,7 @@ static void __init prcm_setup_regs(void)
                OMAP3430_PER_MOD,
                CM_AUTOIDLE);
 
-       if (system_rev > OMAP3430_REV_ES1_0) {
+       if (omap_rev() > OMAP3430_REV_ES1_0) {
                cm_write_mod_reg(
                        OMAP3430ES2_AUTO_USBHOST,
                        OMAP3430ES2_USBHOST_MOD,
@@ -484,9 +481,8 @@ static void __init prcm_setup_regs(void)
         * Set all plls to autoidle. This is needed until autoidle is
         * enabled by clockfw
         */
-       cm_write_mod_reg(1 << OMAP3430_CLKTRCTRL_IVA2_SHIFT,
-                        OMAP3430_IVA2_MOD,
-                        CM_AUTOIDLE2);
+       cm_write_mod_reg(1 << OMAP3430_AUTO_IVA2_DPLL_SHIFT,
+                        OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
        cm_write_mod_reg(1 << OMAP3430_AUTO_MPU_DPLL_SHIFT,
                         MPU_MOD,
                         CM_AUTOIDLE2);
@@ -509,10 +505,12 @@ static void __init prcm_setup_regs(void)
                             OMAP3_PRM_CLKSRC_CTRL_OFFSET);
 
        /* setup wakup source */
-       prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1,
+       prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 |
+                         OMAP3430_EN_GPT1 | OMAP3430_EN_GPT12,
                          WKUP_MOD, PM_WKEN);
        /* No need to write EN_IO, that is always enabled */
-       prm_write_mod_reg(OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1,
+       prm_write_mod_reg(OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1 |
+                         OMAP3430_EN_GPT12,
                          WKUP_MOD, OMAP3430_PM_MPUGRPSEL);
        /* For some reason IO doesn't generate wakeup event even if
         * it is selected to mpu wakeup goup */
@@ -540,9 +538,15 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm)
        return set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);
 }
 
+static int __init clkdms_setup(struct clockdomain *clkdm)
+{
+       omap2_clkdm_allow_idle(clkdm);
+       return 0;
+}
+
 int __init omap3_pm_init(void)
 {
-       struct power_state *pwrst;
+       struct power_state *pwrst, *tmp;
        int ret;
 
        printk(KERN_ERR "Power Management for TI OMAP3.\n");
@@ -566,6 +570,8 @@ int __init omap3_pm_init(void)
                goto err2;
        }
 
+       (void) clkdm_for_each(clkdms_setup);
+
        mpu_pwrdm = pwrdm_lookup("mpu_pwrdm");
        if (mpu_pwrdm == NULL) {
                printk(KERN_ERR "Failed to get mpu_pwrdm\n");
@@ -583,7 +589,7 @@ err1:
        return ret;
 err2:
        free_irq(INT_34XX_PRCM_MPU_IRQ, NULL);
-       list_for_each_entry(pwrst, &pwrst_list, node) {
+       list_for_each_entry_safe(pwrst, tmp, &pwrst_list, node) {
                list_del(&pwrst->node);
                kfree(pwrst);
        }
@@ -622,10 +628,7 @@ static void __init configure_vc(void)
                                OMAP3_PRM_VC_I2C_CFG_OFFSET);
 
        /* Setup voltctrl and other setup times */
-
-#ifdef CONFIG_OMAP_SYSOFFMODE
-       prm_write_mod_reg(OMAP3430_AUTO_OFF | OMAP3430_AUTO_RET |
-                       OMAP3430_SEL_OFF, OMAP3430_GR_MOD,
+       prm_write_mod_reg(OMAP3430_AUTO_RET, OMAP3430_GR_MOD,
                        OMAP3_PRM_VOLTCTRL_OFFSET);
 
        prm_write_mod_reg(OMAP3430_CLKSETUP_DURATION, OMAP3430_GR_MOD,
@@ -640,11 +643,6 @@ static void __init configure_vc(void)
                        OMAP3_PRM_VOLTOFFSET_OFFSET);
        prm_write_mod_reg(OMAP3430_VOLTSETUP2_DURATION, OMAP3430_GR_MOD,
                        OMAP3_PRM_VOLTSETUP2_OFFSET);
-#else
-       prm_set_mod_reg_bits(OMAP3430_AUTO_RET, OMAP3430_GR_MOD,
-                       OMAP3_PRM_VOLTCTRL_OFFSET);
-#endif
-
 }
 
 static int __init omap3_pm_early_init(void)