ARM: OMAP4: vc: fix channel configuration

RACEN bit should only be set if the voltage and command register addresses
are the same.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>

arch/arm/mach-omap2/vc.c

@@ -592,9 +592,12 @@ void __init omap_vc_init_channel(struct voltagedomain *voltdm)
 		voltdm->rmw(vc->smps_cmdra_mask,
 			    vc->cmd_reg_addr << __ffs(vc->smps_cmdra_mask),
 			    vc->smps_cmdra_reg);
-		vc->cfg_channel |= vc_cfg_bits->rac | vc_cfg_bits->racen;
+		vc->cfg_channel |= vc_cfg_bits->rac;
 	}
 
+	if (vc->cmd_reg_addr == vc->volt_reg_addr)
+		vc->cfg_channel |= vc_cfg_bits->racen;
+
 	/* Set up the on, inactive, retention and off voltage */
 	on_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->on);
 	onlp_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->onlp);