OMAP3+: VP: move timing calculation/config into VP init

Move VP timing calcluation (based on sys clock) and register programming
into VP init.

Signed-off-by: Kevin Hilman <khilman@ti.com>

arch/arm/mach-omap2/voltage.c

@@ -46,31 +46,9 @@ static LIST_HEAD(voltdm_list);
 static int __init _config_common_vdd_data(struct voltagedomain *voltdm)
 {
 	struct omap_vdd_info *vdd = voltdm->vdd;
-	u32 sys_clk_rate, timeout_val, waittime;
-
-	/* Divide to avoid overflow */
-	sys_clk_rate = voltdm->sys_clk.rate / 1000;
-	WARN_ON(!sys_clk_rate);
 
 	/* Generic voltage parameters */
 	vdd->volt_scale = omap_vp_forceupdate_scale;
-	voltdm->vp->enabled = false;
-
-	vdd->vp_rt_data.vpconfig_erroroffset =
-		(voltdm->pmic->vp_erroroffset <<
-		 __ffs(voltdm->vp->common->vpconfig_erroroffset_mask));
-
-	timeout_val = (sys_clk_rate * voltdm->pmic->vp_timeout_us) / 1000;
-	vdd->vp_rt_data.vlimitto_timeout = timeout_val;
-	vdd->vp_rt_data.vlimitto_vddmin = voltdm->pmic->vp_vddmin;
-	vdd->vp_rt_data.vlimitto_vddmax = voltdm->pmic->vp_vddmax;
-
-	waittime = ((voltdm->pmic->step_size / voltdm->pmic->slew_rate) *
-		    sys_clk_rate) / 1000;
-	vdd->vp_rt_data.vstepmin_smpswaittimemin = waittime;
-	vdd->vp_rt_data.vstepmax_smpswaittimemax = waittime;
-	vdd->vp_rt_data.vstepmin_stepmin = voltdm->pmic->vp_vstepmin;
-	vdd->vp_rt_data.vstepmax_stepmax = voltdm->pmic->vp_vstepmax;
 
 	return 0;
 }

arch/arm/mach-omap2/vp.c

@@ -50,7 +50,7 @@ void __init omap_vp_init(struct voltagedomain *voltdm)
 {
 	struct omap_vp_instance *vp = voltdm->vp;
 	struct omap_vdd_info *vdd = voltdm->vdd;
-	u32 vp_val;
+	u32 vp_val, sys_clk_rate, timeout_val, waittime;
 
 	if (!voltdm->read || !voltdm->write) {
 		pr_err("%s: No read/write API for accessing vdd_%s regs\n",
@@ -58,6 +58,27 @@ void __init omap_vp_init(struct voltagedomain *voltdm)
 		return;
 	}
 
+	vp->enabled = false;
+
+	/* Divide to avoid overflow */
+	sys_clk_rate = voltdm->sys_clk.rate / 1000;
+
+	vdd->vp_rt_data.vpconfig_erroroffset =
+		(voltdm->pmic->vp_erroroffset <<
+		 __ffs(voltdm->vp->common->vpconfig_erroroffset_mask));
+
+	timeout_val = (sys_clk_rate * voltdm->pmic->vp_timeout_us) / 1000;
+	vdd->vp_rt_data.vlimitto_timeout = timeout_val;
+	vdd->vp_rt_data.vlimitto_vddmin = voltdm->pmic->vp_vddmin;
+	vdd->vp_rt_data.vlimitto_vddmax = voltdm->pmic->vp_vddmax;
+
+	waittime = ((voltdm->pmic->step_size / voltdm->pmic->slew_rate) *
+		    sys_clk_rate) / 1000;
+	vdd->vp_rt_data.vstepmin_smpswaittimemin = waittime;
+	vdd->vp_rt_data.vstepmax_smpswaittimemax = waittime;
+	vdd->vp_rt_data.vstepmin_stepmin = voltdm->pmic->vp_vstepmin;
+	vdd->vp_rt_data.vstepmax_stepmax = voltdm->pmic->vp_vstepmax;
+
 	vp_val = vdd->vp_rt_data.vpconfig_erroroffset |
 		(vdd->vp_rt_data.vpconfig_errorgain <<
 		 __ffs(vp->common->vpconfig_errorgain_mask)) |