regulator: ab8500: Clean out SoC registers

Clean out initialisation that is handled by SoC. Regulator
settings for Vpll (partly), Vsmps1, Vsmps2, Vsmps3 (partly),
Vrf1, Varm, Vape, Vbb, Vmod are cleaned out. They should not
be touched by the kernel.

We also update many of the initialisation values to be more
in-line with the current development efforts of ST-Ericsson
internal engineers.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 28 insertions, 110 deletions

diff --git a/arch/arm/mach-ux500/board-mop500-regulators.c b/arch/arm/mach-ux500/board-mop500-regulators.c
index c962d1d..3d899c5 100644
--- a/arch/arm/mach-ux500/board-mop500-regulators.c
+++ b/arch/arm/mach-ux500/board-mop500-regulators.c
@@ -139,10 +139,9 @@ static struct regulator_consumer_supply ab8500_vana_consumers[] = {
 static struct ab8500_regulator_reg_init ab8500_reg_init[] = {
 	/*
 	 * VanaRequestCtrl          = HP/LP depending on VxRequest
-	 * VpllRequestCtrl          = HP/LP depending on VxRequest
 	 * VextSupply1RequestCtrl   = HP/LP depending on VxRequest
 	 */
-	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL2,       0xfc, 0x00),
+	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL2,       0xf0, 0x00),
 	/*
 	 * VextSupply2RequestCtrl   = HP/LP depending on VxRequest
 	 * VextSupply3RequestCtrl   = HP/LP depending on VxRequest
@@ -156,16 +155,12 @@ static struct ab8500_regulator_reg_init ab8500_reg_init[] = {
 	 */
 	INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL4,       0x07, 0x00),
 	/*
-	 * Vsmps1SysClkReq1HPValid  = enabled
-	 * Vsmps2SysClkReq1HPValid  = enabled
-	 * Vsmps3SysClkReq1HPValid  = enabled
 	 * VanaSysClkReq1HPValid    = disabled
-	 * VpllSysClkReq1HPValid    = enabled
 	 * Vaux1SysClkReq1HPValid   = disabled
 	 * Vaux2SysClkReq1HPValid   = disabled
 	 * Vaux3SysClkReq1HPValid   = disabled
 	 */
-	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID1, 0xff, 0x17),
+	INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID1, 0xe8, 0x00),
 	/*
 	 * VextSupply1SysClkReq1HPValid = disabled
 	 * VextSupply2SysClkReq1HPValid = disabled
@@ -252,17 +247,7 @@ static struct ab8500_regulator_reg_init ab8500_reg_init[] = {
 	 */
 	INIT_REGULATOR_REGISTER(AB8500_REGUCTRL1VAMIC,         0x03, 0x00),
 	/*
-	 * Vsmps1Regu               = HW control
-	 * Vsmps1SelCtrl            = Vsmps1 voltage defined by Vsmsp1Sel2
-	 */
-	INIT_REGULATOR_REGISTER(AB8500_VSMPS1REGU,             0x0f, 0x06),
-	/*
-	 * Vsmps2Regu               = HW control
-	 * Vsmps2SelCtrl            = Vsmps2 voltage defined by Vsmsp2Sel2
-	 */
-	INIT_REGULATOR_REGISTER(AB8500_VSMPS2REGU,             0x0f, 0x06),
-	/*
-	 * VPll                     = Hw controlled
+	 * VPll                     = Hw controlled (NOTE! PRCMU bits)
 	 * VanaRegu                 = force off
 	 */
 	INIT_REGULATOR_REGISTER(AB8500_VPLLVANAREGU,           0x0f, 0x02),
@@ -285,14 +270,9 @@ static struct ab8500_regulator_reg_init ab8500_reg_init[] = {
 	 */
 	INIT_REGULATOR_REGISTER(AB8500_VAUX12REGU,             0x0f, 0x01),
 	/*
-	 * Vrf1Regu                 = HW control
 	 * Vaux3Regu                = force off
 	 */
-	INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3REGU,          0x0f, 0x08),
-	/*
-	 * Vsmps1                   = 1.15V
-	 */
-	INIT_REGULATOR_REGISTER(AB8500_VSMPS1SEL1,             0x3f, 0x24),
+	INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3REGU,          0x03, 0x00),
 	/*
 	 * Vaux1Sel                 = 2.5 V
 	 */
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index f1453a6..919d9fa 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -613,19 +613,10 @@ struct ab8500_reg_init {
 
 static struct ab8500_reg_init ab8500_reg_init[] = {
 	/*
-	 * 0x03, VarmRequestCtrl
-	 * 0x0c, VapeRequestCtrl
-	 * 0x30, Vsmps1RequestCtrl
-	 * 0xc0, Vsmps2RequestCtrl
-	 */
-	REG_INIT(AB8500_REGUREQUESTCTRL1,	0x03, 0x03, 0xff),
-	/*
-	 * 0x03, Vsmps3RequestCtrl
-	 * 0x0c, VpllRequestCtrl
 	 * 0x30, VanaRequestCtrl
 	 * 0xc0, VextSupply1RequestCtrl
 	 */
-	REG_INIT(AB8500_REGUREQUESTCTRL2,	0x03, 0x04, 0xff),
+	REG_INIT(AB8500_REGUREQUESTCTRL2,	0x03, 0x04, 0xf0),
 	/*
 	 * 0x03, VextSupply2RequestCtrl
 	 * 0x0c, VextSupply3RequestCtrl
@@ -639,91 +630,74 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
 	 */
 	REG_INIT(AB8500_REGUREQUESTCTRL4,	0x03, 0x06, 0x07),
 	/*
-	 * 0x01, Vsmps1SysClkReq1HPValid
-	 * 0x02, Vsmps2SysClkReq1HPValid
-	 * 0x04, Vsmps3SysClkReq1HPValid
 	 * 0x08, VanaSysClkReq1HPValid
-	 * 0x10, VpllSysClkReq1HPValid
 	 * 0x20, Vaux1SysClkReq1HPValid
 	 * 0x40, Vaux2SysClkReq1HPValid
 	 * 0x80, Vaux3SysClkReq1HPValid
 	 */
-	REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1,	0x03, 0x07, 0xff),
+	REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1,	0x03, 0x07, 0xe8),
 	/*
-	 * 0x01, VapeSysClkReq1HPValid
-	 * 0x02, VarmSysClkReq1HPValid
-	 * 0x04, VbbSysClkReq1HPValid
-	 * 0x08, VmodSysClkReq1HPValid
 	 * 0x10, VextSupply1SysClkReq1HPValid
 	 * 0x20, VextSupply2SysClkReq1HPValid
 	 * 0x40, VextSupply3SysClkReq1HPValid
 	 */
-	REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2,	0x03, 0x08, 0x7f),
+	REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2,	0x03, 0x08, 0x70),
 	/*
-	 * 0x01, Vsmps1HwHPReq1Valid
-	 * 0x02, Vsmps2HwHPReq1Valid
-	 * 0x04, Vsmps3HwHPReq1Valid
 	 * 0x08, VanaHwHPReq1Valid
-	 * 0x10, VpllHwHPReq1Valid
 	 * 0x20, Vaux1HwHPReq1Valid
 	 * 0x40, Vaux2HwHPReq1Valid
 	 * 0x80, Vaux3HwHPReq1Valid
 	 */
-	REG_INIT(AB8500_REGUHWHPREQ1VALID1,	0x03, 0x09, 0xff),
+	REG_INIT(AB8500_REGUHWHPREQ1VALID1,	0x03, 0x09, 0xe8),
 	/*
 	 * 0x01, VextSupply1HwHPReq1Valid
 	 * 0x02, VextSupply2HwHPReq1Valid
 	 * 0x04, VextSupply3HwHPReq1Valid
-	 * 0x08, VmodHwHPReq1Valid
 	 */
-	REG_INIT(AB8500_REGUHWHPREQ1VALID2,	0x03, 0x0a, 0x0f),
+	REG_INIT(AB8500_REGUHWHPREQ1VALID2,	0x03, 0x0a, 0x07),
 	/*
-	 * 0x01, Vsmps1HwHPReq2Valid
-	 * 0x02, Vsmps2HwHPReq2Valid
-	 * 0x03, Vsmps3HwHPReq2Valid
 	 * 0x08, VanaHwHPReq2Valid
-	 * 0x10, VpllHwHPReq2Valid
 	 * 0x20, Vaux1HwHPReq2Valid
 	 * 0x40, Vaux2HwHPReq2Valid
 	 * 0x80, Vaux3HwHPReq2Valid
 	 */
-	REG_INIT(AB8500_REGUHWHPREQ2VALID1,	0x03, 0x0b, 0xff),
+	REG_INIT(AB8500_REGUHWHPREQ2VALID1,	0x03, 0x0b, 0xe8),
 	/*
 	 * 0x01, VextSupply1HwHPReq2Valid
 	 * 0x02, VextSupply2HwHPReq2Valid
 	 * 0x04, VextSupply3HwHPReq2Valid
-	 * 0x08, VmodHwHPReq2Valid
 	 */
-	REG_INIT(AB8500_REGUHWHPREQ2VALID2,	0x03, 0x0c, 0x0f),
+	REG_INIT(AB8500_REGUHWHPREQ2VALID2,	0x03, 0x0c, 0x07),
 	/*
-	 * 0x01, VapeSwHPReqValid
-	 * 0x02, VarmSwHPReqValid
-	 * 0x04, Vsmps1SwHPReqValid
-	 * 0x08, Vsmps2SwHPReqValid
-	 * 0x10, Vsmps3SwHPReqValid
 	 * 0x20, VanaSwHPReqValid
-	 * 0x40, VpllSwHPReqValid
 	 * 0x80, Vaux1SwHPReqValid
 	 */
-	REG_INIT(AB8500_REGUSWHPREQVALID1,	0x03, 0x0d, 0xff),
+	REG_INIT(AB8500_REGUSWHPREQVALID1,	0x03, 0x0d, 0xa0),
 	/*
 	 * 0x01, Vaux2SwHPReqValid
 	 * 0x02, Vaux3SwHPReqValid
 	 * 0x04, VextSupply1SwHPReqValid
 	 * 0x08, VextSupply2SwHPReqValid
 	 * 0x10, VextSupply3SwHPReqValid
-	 * 0x20, VmodSwHPReqValid
 	 */
-	REG_INIT(AB8500_REGUSWHPREQVALID2,	0x03, 0x0e, 0x3f),
+	REG_INIT(AB8500_REGUSWHPREQVALID2,	0x03, 0x0e, 0x1f),
 	/*
 	 * 0x02, SysClkReq2Valid1
-	 * ...
+	 * 0x04, SysClkReq3Valid1
+	 * 0x08, SysClkReq4Valid1
+	 * 0x10, SysClkReq5Valid1
+	 * 0x20, SysClkReq6Valid1
+	 * 0x40, SysClkReq7Valid1
 	 * 0x80, SysClkReq8Valid1
 	 */
 	REG_INIT(AB8500_REGUSYSCLKREQVALID1,	0x03, 0x0f, 0xfe),
 	/*
 	 * 0x02, SysClkReq2Valid2
-	 * ...
+	 * 0x04, SysClkReq3Valid2
+	 * 0x08, SysClkReq4Valid2
+	 * 0x10, SysClkReq5Valid2
+	 * 0x20, SysClkReq6Valid2
+	 * 0x40, SysClkReq7Valid2
 	 * 0x80, SysClkReq8Valid2
 	 */
 	REG_INIT(AB8500_REGUSYSCLKREQVALID2,	0x03, 0x10, 0xfe),
@@ -748,21 +722,7 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
 	 */
 	REG_INIT(AB8500_REGUCTRL1VAMIC,		0x03, 0x84, 0x03),
 	/*
-	 * 0x03, Vsmps1Regu
-	 * 0x0c, Vsmps1SelCtrl
-	 * 0x10, Vsmps1AutoMode
-	 * 0x20, Vsmps1PWMMode
-	 */
-	REG_INIT(AB8500_VSMPS1REGU,		0x04, 0x03, 0x3f),
-	/*
-	 * 0x03, Vsmps2Regu
-	 * 0x0c, Vsmps2SelCtrl
-	 * 0x10, Vsmps2AutoMode
-	 * 0x20, Vsmps2PWMMode
-	 */
-	REG_INIT(AB8500_VSMPS2REGU,		0x04, 0x04, 0x3f),
-	/*
-	 * 0x03, VpllRegu
+	 * 0x03, VpllRegu (NOTE! PRCMU register bits)
 	 * 0x0c, VanaRegu
 	 */
 	REG_INIT(AB8500_VPLLVANAREGU,		0x04, 0x06, 0x0f),
@@ -785,14 +745,9 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
 	 */
 	REG_INIT(AB8500_VAUX12REGU,		0x04, 0x09, 0x0f),
 	/*
-	 * 0x0c, Vrf1Regu
 	 * 0x03, Vaux3Regu
 	 */
-	REG_INIT(AB8500_VRF1VAUX3REGU,		0x04, 0x0a, 0x0f),
-	/*
-	 * 0x3f, Vsmps1Sel1
-	 */
-	REG_INIT(AB8500_VSMPS1SEL1,		0x04, 0x13, 0x3f),
+	REG_INIT(AB8500_VRF1VAUX3REGU,		0x04, 0x0a, 0x03),
 	/*
 	 * 0x0f, Vaux1Sel
 	 */
@@ -803,16 +758,13 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
 	REG_INIT(AB8500_VAUX2SEL,		0x04, 0x20, 0x0f),
 	/*
 	 * 0x07, Vaux3Sel
-	 * 0x30, Vrf1Sel
 	 */
-	REG_INIT(AB8500_VRF1VAUX3SEL,		0x04, 0x21, 0x37),
+	REG_INIT(AB8500_VRF1VAUX3SEL,		0x04, 0x21, 0x07),
 	/*
 	 * 0x01, VextSupply12LP
 	 */
 	REG_INIT(AB8500_REGUCTRL2SPARE,		0x04, 0x22, 0x01),
 	/*
-	 * 0x01, VpllDisch
-	 * 0x02, Vrf1Disch
 	 * 0x04, Vaux1Disch
 	 * 0x08, Vaux2Disch
 	 * 0x10, Vaux3Disch
@@ -820,15 +772,13 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
 	 * 0x40, VTVoutDisch
 	 * 0x80, VaudioDisch
 	 */
-	REG_INIT(AB8500_REGUCTRLDISCH,		0x04, 0x43, 0xff),
+	REG_INIT(AB8500_REGUCTRLDISCH,		0x04, 0x43, 0xfc),
 	/*
-	 * 0x01, VsimDisch
 	 * 0x02, VanaDisch
 	 * 0x04, VdmicPullDownEna
-	 * 0x08, VpllPullDownEna
 	 * 0x10, VdmicDisch
 	 */
-	REG_INIT(AB8500_REGUCTRLDISCH2,		0x04, 0x44, 0x1f),
+	REG_INIT(AB8500_REGUCTRLDISCH2,		0x04, 0x44, 0x16),
 };
 
 static int ab8500_regulator_init_registers(struct platform_device *pdev,
diff --git a/include/linux/regulator/ab8500.h b/include/linux/regulator/ab8500.h
index 3a8e026..26792ff 100644
--- a/include/linux/regulator/ab8500.h
+++ b/include/linux/regulator/ab8500.h
@@ -61,7 +61,6 @@ struct ab8500_regulator_reg_init {
 
 /* AB8500 registers */
 enum ab8500_regulator_reg {
-	AB8500_REGUREQUESTCTRL1,
 	AB8500_REGUREQUESTCTRL2,
 	AB8500_REGUREQUESTCTRL3,
 	AB8500_REGUREQUESTCTRL4,
@@ -78,22 +77,11 @@ enum ab8500_regulator_reg {
 	AB8500_REGUMISC1,
 	AB8500_VAUDIOSUPPLY,
 	AB8500_REGUCTRL1VAMIC,
-	AB8500_VSMPS1REGU,
-	AB8500_VSMPS2REGU,
-	AB8500_VSMPS3REGU, /* NOTE! PRCMU register */
 	AB8500_VPLLVANAREGU,
 	AB8500_VREFDDR,
 	AB8500_EXTSUPPLYREGU,
 	AB8500_VAUX12REGU,
 	AB8500_VRF1VAUX3REGU,
-	AB8500_VSMPS1SEL1,
-	AB8500_VSMPS1SEL2,
-	AB8500_VSMPS1SEL3,
-	AB8500_VSMPS2SEL1,
-	AB8500_VSMPS2SEL2,
-	AB8500_VSMPS2SEL3,
-	AB8500_VSMPS3SEL1, /* NOTE! PRCMU register */
-	AB8500_VSMPS3SEL2, /* NOTE! PRCMU register */
 	AB8500_VAUX1SEL,
 	AB8500_VAUX2SEL,
 	AB8500_VRF1VAUX3SEL,