Merge branch 'sh-latest' of git://github.com/pmundt/linux-sh
[pandora-kernel.git] / arch / arm / mach-omap2 / pm.c
index 472bf22..2ab7a9e 100644 (file)
 
 static struct omap_device_pm_latency *pm_lats;
 
-static struct device *mpu_dev;
-static struct device *iva_dev;
-static struct device *l3_dev;
-static struct device *dsp_dev;
-
-struct device *omap2_get_mpuss_device(void)
-{
-       WARN_ON_ONCE(!mpu_dev);
-       return mpu_dev;
-}
-
-struct device *omap2_get_iva_device(void)
-{
-       WARN_ON_ONCE(!iva_dev);
-       return iva_dev;
-}
-
-struct device *omap2_get_l3_device(void)
-{
-       WARN_ON_ONCE(!l3_dev);
-       return l3_dev;
-}
-
-struct device *omap4_get_dsp_device(void)
-{
-       WARN_ON_ONCE(!dsp_dev);
-       return dsp_dev;
-}
-EXPORT_SYMBOL(omap4_get_dsp_device);
-
-/* static int _init_omap_device(struct omap_hwmod *oh, void *user) */
-static int _init_omap_device(char *name, struct device **new_dev)
+static int _init_omap_device(char *name)
 {
        struct omap_hwmod *oh;
-       struct omap_device *od;
+       struct platform_device *pdev;
 
        oh = omap_hwmod_lookup(name);
        if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
                 __func__, name))
                return -ENODEV;
 
-       od = omap_device_build(oh->name, 0, oh, NULL, 0, pm_lats, 0, false);
-       if (WARN(IS_ERR(od), "%s: could not build omap_device for %s\n",
+       pdev = omap_device_build(oh->name, 0, oh, NULL, 0, pm_lats, 0, false);
+       if (WARN(IS_ERR(pdev), "%s: could not build omap_device for %s\n",
                 __func__, name))
                return -ENODEV;
 
-       *new_dev = &od->pdev.dev;
-
        return 0;
 }
 
@@ -82,16 +49,16 @@ static int _init_omap_device(char *name, struct device **new_dev)
  */
 static void omap2_init_processor_devices(void)
 {
-       _init_omap_device("mpu", &mpu_dev);
+       _init_omap_device("mpu");
        if (omap3_has_iva())
-               _init_omap_device("iva", &iva_dev);
+               _init_omap_device("iva");
 
        if (cpu_is_omap44xx()) {
-               _init_omap_device("l3_main_1", &l3_dev);
-               _init_omap_device("dsp", &dsp_dev);
-               _init_omap_device("iva", &iva_dev);
+               _init_omap_device("l3_main_1");
+               _init_omap_device("dsp");
+               _init_omap_device("iva");
        } else {
-               _init_omap_device("l3_main", &l3_dev);
+               _init_omap_device("l3_main");
        }
 }
 
@@ -136,8 +103,8 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
 
        ret = pwrdm_set_next_pwrst(pwrdm, state);
        if (ret) {
-               printk(KERN_ERR "Unable to set state of powerdomain: %s\n",
-                      pwrdm->name);
+               pr_err("%s: unable to set state of powerdomain: %s\n",
+                      __func__, pwrdm->name);
                goto err;
        }
 
@@ -161,37 +128,44 @@ err:
 }
 
 /*
- * This API is to be called during init to put the various voltage
+ * This API is to be called during init to set the various voltage
  * domains to the voltage as per the opp table. Typically we boot up
  * at the nominal voltage. So this function finds out the rate of
  * the clock associated with the voltage domain, finds out the correct
- * opp entry and puts the voltage domain to the voltage specifies
+ * opp entry and sets the voltage domain to the voltage specified
  * in the opp entry
  */
 static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
-                                               struct device *dev)
+                                        const char *oh_name)
 {
        struct voltagedomain *voltdm;
        struct clk *clk;
        struct opp *opp;
        unsigned long freq, bootup_volt;
+       struct device *dev;
+
+       if (!vdd_name || !clk_name || !oh_name) {
+               pr_err("%s: invalid parameters\n", __func__);
+               goto exit;
+       }
 
-       if (!vdd_name || !clk_name || !dev) {
-               printk(KERN_ERR "%s: Invalid parameters!\n", __func__);
+       dev = omap_device_get_by_hwmod_name(oh_name);
+       if (IS_ERR(dev)) {
+               pr_err("%s: Unable to get dev pointer for hwmod %s\n",
+                       __func__, oh_name);
                goto exit;
        }
 
-       voltdm = omap_voltage_domain_lookup(vdd_name);
+       voltdm = voltdm_lookup(vdd_name);
        if (IS_ERR(voltdm)) {
-               printk(KERN_ERR "%s: Unable to get vdd pointer for vdd_%s\n",
+               pr_err("%s: unable to get vdd pointer for vdd_%s\n",
                        __func__, vdd_name);
                goto exit;
        }
 
        clk =  clk_get(NULL, clk_name);
        if (IS_ERR(clk)) {
-               printk(KERN_ERR "%s: unable to get clk %s\n",
-                       __func__, clk_name);
+               pr_err("%s: unable to get clk %s\n", __func__, clk_name);
                goto exit;
        }
 
@@ -200,24 +174,23 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
 
        opp = opp_find_freq_ceil(dev, &freq);
        if (IS_ERR(opp)) {
-               printk(KERN_ERR "%s: unable to find boot up OPP for vdd_%s\n",
+               pr_err("%s: unable to find boot up OPP for vdd_%s\n",
                        __func__, vdd_name);
                goto exit;
        }
 
        bootup_volt = opp_get_voltage(opp);
        if (!bootup_volt) {
-               printk(KERN_ERR "%s: unable to find voltage corresponding"
+               pr_err("%s: unable to find voltage corresponding "
                        "to the bootup OPP for vdd_%s\n", __func__, vdd_name);
                goto exit;
        }
 
-       omap_voltage_scale_vdd(voltdm, bootup_volt);
+       voltdm_scale(voltdm, bootup_volt);
        return 0;
 
 exit:
-       printk(KERN_ERR "%s: Unable to put vdd_%s to its init voltage\n\n",
-               __func__, vdd_name);
+       pr_err("%s: unable to set vdd_%s\n", __func__, vdd_name);
        return -EINVAL;
 }
 
@@ -226,8 +199,8 @@ static void __init omap3_init_voltages(void)
        if (!cpu_is_omap34xx())
                return;
 
-       omap2_set_init_voltage("mpu", "dpll1_ck", mpu_dev);
-       omap2_set_init_voltage("core", "l3_ick", l3_dev);
+       omap2_set_init_voltage("mpu_iva", "dpll1_ck", "mpu");
+       omap2_set_init_voltage("core", "l3_ick", "l3_main");
 }
 
 static void __init omap4_init_voltages(void)
@@ -235,14 +208,15 @@ static void __init omap4_init_voltages(void)
        if (!cpu_is_omap44xx())
                return;
 
-       omap2_set_init_voltage("mpu", "dpll_mpu_ck", mpu_dev);
-       omap2_set_init_voltage("core", "l3_div_ck", l3_dev);
-       omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", iva_dev);
+       omap2_set_init_voltage("mpu", "dpll_mpu_ck", "mpu");
+       omap2_set_init_voltage("core", "l3_div_ck", "l3_main_1");
+       omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", "iva");
 }
 
 static int __init omap2_common_pm_init(void)
 {
-       omap2_init_processor_devices();
+       if (!of_have_populated_dt())
+               omap2_init_processor_devices();
        omap_pm_if_init();
 
        return 0;