OMAP3+: VC: cleanup PMIC register address configuration

- support both voltage register address and command register address
  for each VC channel
- add fields for voltage register address (volra) and command register
  address (cmdra) to struct omap_vc_channel
- use VC/VP register access read/modify/write helper
- remove volra_shift field (use __ffs(mask) for shift value)
- I2C addresses 10-bit, change size to u16

Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/arch/arm/mach-omap2/vc3xxx_data.c b/arch/arm/mach-omap2/vc3xxx_data.c
index 86be50c..df8bd5e 100644
--- a/arch/arm/mach-omap2/vc3xxx_data.c
+++ b/arch/arm/mach-omap2/vc3xxx_data.c
@@ -32,6 +32,7 @@
 static struct omap_vc_common omap3_vc_common = {
 	.smps_sa_reg	 = OMAP3_PRM_VC_SMPS_SA_OFFSET,
 	.smps_volra_reg	 = OMAP3_PRM_VC_SMPS_VOL_RA_OFFSET,
+	.smps_cmdra_reg	 = OMAP3_PRM_VC_SMPS_CMD_RA_OFFSET,
 	.bypass_val_reg	 = OMAP3_PRM_VC_BYPASS_VAL_OFFSET,
 	.data_shift	 = OMAP3430_DATA_SHIFT,
 	.slaveaddr_shift = OMAP3430_SLAVEADDR_SHIFT,
@@ -48,14 +49,14 @@
 	.common = &omap3_vc_common,
 	.cmdval_reg = OMAP3_PRM_VC_CMD_VAL_0_OFFSET,
 	.smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA0_MASK,
-	.smps_volra_shift = OMAP3430_VOLRA0_SHIFT,
 	.smps_volra_mask = OMAP3430_VOLRA0_MASK,
+	.smps_cmdra_mask = OMAP3430_CMDRA0_MASK,
 };
 
 struct omap_vc_channel omap3_vc_core = {
 	.common = &omap3_vc_common,
 	.cmdval_reg = OMAP3_PRM_VC_CMD_VAL_1_OFFSET,
 	.smps_sa_mask = OMAP3430_PRM_VC_SMPS_SA_SA1_MASK,
-	.smps_volra_shift = OMAP3430_VOLRA1_SHIFT,
 	.smps_volra_mask = OMAP3430_VOLRA1_MASK,
+	.smps_cmdra_mask = OMAP3430_CMDRA1_MASK,
 };