Message-Id: <1360148051-7560-24-git-send-email-lee.jones@linaro.org>
Date:	Wed,  6 Feb 2013 10:53:45 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-kernel@...r.kernel.org
Cc:	broonie@...nsource.wolfsonmicro.com, linus.walleij@...aro.org,
	Lee Jones <lee.jones@...aro.org>
Subject: [PATCH 23/49] regulator: ab8500: Add support for the ab9540

To obtain full AB9540 regulator support, the AB8500 regulator driver
first needs to know its register layout and their initialisation values
for each. That information is provided via a couple of large data
structures which we provide here.

Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/regulator/ab8500.c |  582 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 573 insertions(+), 9 deletions(-)

diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index aadaa9c..104a4c7 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -375,6 +375,7 @@ static struct regulator_ops ab8500_regulator_ops = {
 	.list_voltage		= regulator_list_voltage_table,
 };
 
+/* AB8500 regulator information */
 static struct ab8500_regulator_info
 		ab8500_regulator_info[AB8500_NUM_REGULATORS] = {
 	/*
@@ -576,8 +577,264 @@ static struct ab8500_regulator_info
 		.update_val_idle	= 0x0c,
 		.update_val_normal	= 0x04,
 	},
+};
+
+/* AB9540 regulator information */
+static struct ab8500_regulator_info
+		ab9540_regulator_info[AB9540_NUM_REGULATORS] = {
+	/*
+	 * Variable Voltage Regulators
+	 *   name, min mV, max mV,
+	 *   update bank, reg, mask, enable val
+	 *   volt bank, reg, mask, table, table length
+	 */
+	[AB9540_LDO_AUX1] = {
+		.desc = {
+			.name		= "LDO-AUX1",
+			.ops		= &ab8500_regulator_volt_mode_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_AUX1,
+			.owner		= THIS_MODULE,
+			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
+		},
+		.min_uV			= 1100000,
+		.max_uV			= 3300000,
+		.load_lp_uA		= 5000,
+		.update_bank		= 0x04,
+		.update_reg		= 0x09,
+		.update_mask		= 0x03,
+		.update_val		= 0x01,
+		.update_val_idle	= 0x03,
+		.update_val_normal	= 0x01,
+		.voltage_bank		= 0x04,
+		.voltage_reg		= 0x1f,
+		.voltage_mask		= 0x0f,
+		.voltages		= ldo_vauxn_voltages,
+		.voltages_len		= ARRAY_SIZE(ldo_vauxn_voltages),
+	},
+	[AB9540_LDO_AUX2] = {
+		.desc = {
+			.name		= "LDO-AUX2",
+			.ops		= &ab8500_regulator_volt_mode_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_AUX2,
+			.owner		= THIS_MODULE,
+			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
+		},
+		.min_uV			= 1100000,
+		.max_uV			= 3300000,
+		.load_lp_uA		= 5000,
+		.update_bank		= 0x04,
+		.update_reg		= 0x09,
+		.update_mask		= 0x0c,
+		.update_val		= 0x04,
+		.update_val_idle	= 0x0c,
+		.update_val_normal	= 0x04,
+		.voltage_bank		= 0x04,
+		.voltage_reg		= 0x20,
+		.voltage_mask		= 0x0f,
+		.voltages		= ldo_vauxn_voltages,
+		.voltages_len		= ARRAY_SIZE(ldo_vauxn_voltages),
+	},
+	[AB9540_LDO_AUX3] = {
+		.desc = {
+			.name		= "LDO-AUX3",
+			.ops		= &ab8500_regulator_volt_mode_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_AUX3,
+			.owner		= THIS_MODULE,
+			.n_voltages	= ARRAY_SIZE(ldo_vaux3_voltages),
+		},
+		.min_uV			= 1100000,
+		.max_uV			= 3300000,
+		.load_lp_uA		= 5000,
+		.update_bank		= 0x04,
+		.update_reg		= 0x0a,
+		.update_mask		= 0x03,
+		.update_val		= 0x01,
+		.update_val_idle	= 0x03,
+		.update_val_normal	= 0x01,
+		.voltage_bank		= 0x04,
+		.voltage_reg		= 0x21,
+		.voltage_mask		= 0x07,
+		.voltages		= ldo_vaux3_voltages,
+		.voltages_len		= ARRAY_SIZE(ldo_vaux3_voltages),
+	},
+	[AB9540_LDO_AUX4] = {
+		.desc = {
+			.name		= "LDO-AUX4",
+			.ops		= &ab8500_regulator_volt_mode_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB9540_LDO_AUX4,
+			.owner		= THIS_MODULE,
+			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
+		},
+		.min_uV			= 1100000,
+		.max_uV			= 3300000,
+		.load_lp_uA		= 5000,
+		/* values for Vaux4Regu register */
+		.update_bank		= 0x04,
+		.update_reg		= 0x2e,
+		.update_mask		= 0x03,
+		.update_val		= 0x01,
+		.update_val_idle	= 0x03,
+		.update_val_normal	= 0x01,
+		/* values for Vaux4SEL register */
+		.voltage_bank		= 0x04,
+		.voltage_reg		= 0x2f,
+		.voltage_mask		= 0x0f,
+		.voltages		= ldo_vauxn_voltages,
+		.voltages_len		= ARRAY_SIZE(ldo_vauxn_voltages),
+	},
+	[AB9540_LDO_INTCORE] = {
+		.desc = {
+			.name		= "LDO-INTCORE",
+			.ops		= &ab8500_regulator_volt_mode_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_INTCORE,
+			.owner		= THIS_MODULE,
+			.n_voltages	= ARRAY_SIZE(ldo_vintcore_voltages),
+		},
+		.min_uV			= 1100000,
+		.max_uV			= 3300000,
+		.load_lp_uA		= 5000,
+		.update_bank		= 0x03,
+		.update_reg		= 0x80,
+		.update_mask		= 0x44,
+		.update_val		= 0x44,
+		.update_val_idle	= 0x44,
+		.update_val_normal	= 0x04,
+		.voltage_bank		= 0x03,
+		.voltage_reg		= 0x80,
+		.voltage_mask		= 0x38,
+		.voltages		= ldo_vintcore_voltages,
+		.voltages_len		= ARRAY_SIZE(ldo_vintcore_voltages),
+	},
 
+	/*
+	 * Fixed Voltage Regulators
+	 *   name, fixed mV,
+	 *   update bank, reg, mask, enable val
+	 */
+	[AB9540_LDO_TVOUT] = {
+		.desc = {
+			.name		= "LDO-TVOUT",
+			.ops		= &ab8500_regulator_mode_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_TVOUT,
+			.owner		= THIS_MODULE,
+			.n_voltages	= 1,
+		},
+		.delay			= 10000,
+		.fixed_uV		= 2000000,
+		.load_lp_uA		= 1000,
+		.update_bank		= 0x03,
+		.update_reg		= 0x80,
+		.update_mask		= 0x82,
+		.update_val		= 0x02,
+		.update_val_idle	= 0x82,
+		.update_val_normal	= 0x02,
+	},
+	[AB9540_LDO_USB] = {
+		.desc = {
+			.name           = "LDO-USB",
+			.ops            = &ab8500_regulator_ops,
+			.type           = REGULATOR_VOLTAGE,
+			.id             = AB9540_LDO_USB,
+			.owner          = THIS_MODULE,
+			.n_voltages     = 1,
+		},
+		.fixed_uV               = 3300000,
+		.update_bank            = 0x03,
+		.update_reg             = 0x82,
+		.update_mask            = 0x03,
+		.update_val		= 0x01,
+		.update_val_idle	= 0x03,
+		.update_val_normal	= 0x01,
+	},
+	[AB9540_LDO_AUDIO] = {
+		.desc = {
+			.name		= "LDO-AUDIO",
+			.ops		= &ab8500_regulator_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_AUDIO,
+			.owner		= THIS_MODULE,
+			.n_voltages	= 1,
+		},
+		.fixed_uV		= 2000000,
+		.update_bank		= 0x03,
+		.update_reg		= 0x83,
+		.update_mask		= 0x02,
+		.update_val		= 0x02,
+	},
+	[AB9540_LDO_ANAMIC1] = {
+		.desc = {
+			.name		= "LDO-ANAMIC1",
+			.ops		= &ab8500_regulator_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_ANAMIC1,
+			.owner		= THIS_MODULE,
+			.n_voltages	= 1,
+		},
+		.fixed_uV		= 2050000,
+		.update_bank		= 0x03,
+		.update_reg		= 0x83,
+		.update_mask		= 0x08,
+		.update_val		= 0x08,
+	},
+	[AB9540_LDO_ANAMIC2] = {
+		.desc = {
+			.name		= "LDO-ANAMIC2",
+			.ops		= &ab8500_regulator_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_ANAMIC2,
+			.owner		= THIS_MODULE,
+			.n_voltages	= 1,
+		},
+		.fixed_uV		= 2050000,
+		.update_bank		= 0x03,
+		.update_reg		= 0x83,
+		.update_mask		= 0x10,
+		.update_val		= 0x10,
+	},
+	[AB9540_LDO_DMIC] = {
+		.desc = {
+			.name		= "LDO-DMIC",
+			.ops		= &ab8500_regulator_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_DMIC,
+			.owner		= THIS_MODULE,
+			.n_voltages	= 1,
+		},
+		.fixed_uV		= 1800000,
+		.update_bank		= 0x03,
+		.update_reg		= 0x83,
+		.update_mask		= 0x04,
+		.update_val		= 0x04,
+	},
 
+	/*
+	 * Regulators with fixed voltage and normal/idle modes
+	 */
+	[AB9540_LDO_ANA] = {
+		.desc = {
+			.name		= "LDO-ANA",
+			.ops		= &ab8500_regulator_mode_ops,
+			.type		= REGULATOR_VOLTAGE,
+			.id		= AB8500_LDO_ANA,
+			.owner		= THIS_MODULE,
+			.n_voltages	= 1,
+		},
+		.fixed_uV		= 1200000,
+		.load_lp_uA		= 1000,
+		.load_lp_uA		= 1000,
+		.update_bank		= 0x04,
+		.update_reg		= 0x06,
+		.update_mask		= 0x0c,
+		.update_val		= 0x08,
+		.update_val_idle	= 0x0c,
+		.update_val_normal	= 0x08,
+	},
 };
 
 struct ab8500_reg_init {
@@ -593,6 +850,7 @@ struct ab8500_reg_init {
 		.mask = _mask,			\
 	}
 
+/* AB8500 register init */
 static struct ab8500_reg_init ab8500_reg_init[] = {
 	/*
 	 * 0x30, VanaRequestCtrl
@@ -763,6 +1021,281 @@ static struct ab8500_reg_init ab8500_reg_init[] = {
 	REG_INIT(AB8500_REGUCTRLDISCH2,		0x04, 0x44, 0x16),
 };
 
+/* AB9540 register init */
+static struct ab8500_reg_init ab9540_reg_init[] = {
+	/*
+	 * 0x03, VarmRequestCtrl
+	 * 0x0c, VapeRequestCtrl
+	 * 0x30, Vsmps1RequestCtrl
+	 * 0xc0, Vsmps2RequestCtrl
+	 */
+	REG_INIT(AB9540_REGUREQUESTCTRL1,	0x03, 0x03, 0xff),
+	/*
+	 * 0x03, Vsmps3RequestCtrl
+	 * 0x0c, VpllRequestCtrl
+	 * 0x30, VanaRequestCtrl
+	 * 0xc0, VextSupply1RequestCtrl
+	 */
+	REG_INIT(AB9540_REGUREQUESTCTRL2,	0x03, 0x04, 0xff),
+	/*
+	 * 0x03, VextSupply2RequestCtrl
+	 * 0x0c, VextSupply3RequestCtrl
+	 * 0x30, Vaux1RequestCtrl
+	 * 0xc0, Vaux2RequestCtrl
+	 */
+	REG_INIT(AB9540_REGUREQUESTCTRL3,	0x03, 0x05, 0xff),
+	/*
+	 * 0x03, Vaux3RequestCtrl
+	 * 0x04, SwHPReq
+	 */
+	REG_INIT(AB9540_REGUREQUESTCTRL4,	0x03, 0x06, 0x07),
+	/*
+	 * 0x01, Vsmps1SysClkReq1HPValid
+	 * 0x02, Vsmps2SysClkReq1HPValid
+	 * 0x04, Vsmps3SysClkReq1HPValid
+	 * 0x08, VanaSysClkReq1HPValid
+	 * 0x10, VpllSysClkReq1HPValid
+	 * 0x20, Vaux1SysClkReq1HPValid
+	 * 0x40, Vaux2SysClkReq1HPValid
+	 * 0x80, Vaux3SysClkReq1HPValid
+	 */
+	REG_INIT(AB9540_REGUSYSCLKREQ1HPVALID1,	0x03, 0x07, 0xff),
+	/*
+	 * 0x01, VapeSysClkReq1HPValid
+	 * 0x02, VarmSysClkReq1HPValid
+	 * 0x04, VbbSysClkReq1HPValid
+	 * 0x08, VmodSysClkReq1HPValid
+	 * 0x10, VextSupply1SysClkReq1HPValid
+	 * 0x20, VextSupply2SysClkReq1HPValid
+	 * 0x40, VextSupply3SysClkReq1HPValid
+	 */
+	REG_INIT(AB9540_REGUSYSCLKREQ1HPVALID2,	0x03, 0x08, 0x7f),
+	/*
+	 * 0x01, Vsmps1HwHPReq1Valid
+	 * 0x02, Vsmps2HwHPReq1Valid
+	 * 0x04, Vsmps3HwHPReq1Valid
+	 * 0x08, VanaHwHPReq1Valid
+	 * 0x10, VpllHwHPReq1Valid
+	 * 0x20, Vaux1HwHPReq1Valid
+	 * 0x40, Vaux2HwHPReq1Valid
+	 * 0x80, Vaux3HwHPReq1Valid
+	 */
+	REG_INIT(AB9540_REGUHWHPREQ1VALID1,	0x03, 0x09, 0xff),
+	/*
+	 * 0x01, VextSupply1HwHPReq1Valid
+	 * 0x02, VextSupply2HwHPReq1Valid
+	 * 0x04, VextSupply3HwHPReq1Valid
+	 * 0x08, VmodHwHPReq1Valid
+	 */
+	REG_INIT(AB9540_REGUHWHPREQ1VALID2,	0x03, 0x0a, 0x0f),
+	/*
+	 * 0x01, Vsmps1HwHPReq2Valid
+	 * 0x02, Vsmps2HwHPReq2Valid
+	 * 0x03, Vsmps3HwHPReq2Valid
+	 * 0x08, VanaHwHPReq2Valid
+	 * 0x10, VpllHwHPReq2Valid
+	 * 0x20, Vaux1HwHPReq2Valid
+	 * 0x40, Vaux2HwHPReq2Valid
+	 * 0x80, Vaux3HwHPReq2Valid
+	 */
+	REG_INIT(AB9540_REGUHWHPREQ2VALID1,	0x03, 0x0b, 0xff),
+	/*
+	 * 0x01, VextSupply1HwHPReq2Valid
+	 * 0x02, VextSupply2HwHPReq2Valid
+	 * 0x04, VextSupply3HwHPReq2Valid
+	 * 0x08, VmodHwHPReq2Valid
+	 */
+	REG_INIT(AB9540_REGUHWHPREQ2VALID2,	0x03, 0x0c, 0x0f),
+	/*
+	 * 0x01, VapeSwHPReqValid
+	 * 0x02, VarmSwHPReqValid
+	 * 0x04, Vsmps1SwHPReqValid
+	 * 0x08, Vsmps2SwHPReqValid
+	 * 0x10, Vsmps3SwHPReqValid
+	 * 0x20, VanaSwHPReqValid
+	 * 0x40, VpllSwHPReqValid
+	 * 0x80, Vaux1SwHPReqValid
+	 */
+	REG_INIT(AB9540_REGUSWHPREQVALID1,	0x03, 0x0d, 0xff),
+	/*
+	 * 0x01, Vaux2SwHPReqValid
+	 * 0x02, Vaux3SwHPReqValid
+	 * 0x04, VextSupply1SwHPReqValid
+	 * 0x08, VextSupply2SwHPReqValid
+	 * 0x10, VextSupply3SwHPReqValid
+	 * 0x20, VmodSwHPReqValid
+	 */
+	REG_INIT(AB9540_REGUSWHPREQVALID2,	0x03, 0x0e, 0x3f),
+	/*
+	 * 0x02, SysClkReq2Valid1
+	 * ...
+	 * 0x80, SysClkReq8Valid1
+	 */
+	REG_INIT(AB9540_REGUSYSCLKREQVALID1,	0x03, 0x0f, 0xfe),
+	/*
+	 * 0x02, SysClkReq2Valid2
+	 * ...
+	 * 0x80, SysClkReq8Valid2
+	 */
+	REG_INIT(AB9540_REGUSYSCLKREQVALID2,	0x03, 0x10, 0xfe),
+	/*
+	 * 0x01, Vaux4SwHPReqValid
+	 * 0x02, Vaux4HwHPReq2Valid
+	 * 0x04, Vaux4HwHPReq1Valid
+	 * 0x08, Vaux4SysClkReq1HPValid
+	 */
+	REG_INIT(AB9540_REGUVAUX4REQVALID,	0x03, 0x11, 0x0f),
+	/*
+	 * 0x02, VTVoutEna
+	 * 0x04, Vintcore12Ena
+	 * 0x38, Vintcore12Sel
+	 * 0x40, Vintcore12LP
+	 * 0x80, VTVoutLP
+	 */
+	REG_INIT(AB9540_REGUMISC1,		0x03, 0x80, 0xfe),
+	/*
+	 * 0x02, VaudioEna
+	 * 0x04, VdmicEna
+	 * 0x08, Vamic1Ena
+	 * 0x10, Vamic2Ena
+	 */
+	REG_INIT(AB9540_VAUDIOSUPPLY,		0x03, 0x83, 0x1e),
+	/*
+	 * 0x01, Vamic1_dzout
+	 * 0x02, Vamic2_dzout
+	 */
+	REG_INIT(AB9540_REGUCTRL1VAMIC,		0x03, 0x84, 0x03),
+	/*
+	 * 0x03, Vsmps1Regu
+	 * 0x0c, Vsmps1SelCtrl
+	 * 0x10, Vsmps1AutoMode
+	 * 0x20, Vsmps1PWMMode
+	 */
+	REG_INIT(AB9540_VSMPS1REGU,		0x04, 0x03, 0x3f),
+	/*
+	 * 0x03, Vsmps2Regu
+	 * 0x0c, Vsmps2SelCtrl
+	 * 0x10, Vsmps2AutoMode
+	 * 0x20, Vsmps2PWMMode
+	 */
+	REG_INIT(AB9540_VSMPS2REGU,		0x04, 0x04, 0x3f),
+	/*
+	 * 0x03, Vsmps3Regu
+	 * 0x0c, Vsmps3SelCtrl
+	 * NOTE! PRCMU register
+	 */
+	REG_INIT(AB9540_VSMPS3REGU,		0x04, 0x05, 0x0f),
+	/*
+	 * 0x03, VpllRegu
+	 * 0x0c, VanaRegu
+	 */
+	REG_INIT(AB9540_VPLLVANAREGU,		0x04, 0x06, 0x0f),
+	/*
+	 * 0x03, VextSupply1Regu
+	 * 0x0c, VextSupply2Regu
+	 * 0x30, VextSupply3Regu
+	 * 0x40, ExtSupply2Bypass
+	 * 0x80, ExtSupply3Bypass
+	 */
+	REG_INIT(AB9540_EXTSUPPLYREGU,		0x04, 0x08, 0xff),
+	/*
+	 * 0x03, Vaux1Regu
+	 * 0x0c, Vaux2Regu
+	 */
+	REG_INIT(AB9540_VAUX12REGU,		0x04, 0x09, 0x0f),
+	/*
+	 * 0x0c, Vrf1Regu
+	 * 0x03, Vaux3Regu
+	 */
+	REG_INIT(AB9540_VRF1VAUX3REGU,		0x04, 0x0a, 0x0f),
+	/*
+	 * 0x3f, Vsmps1Sel1
+	 */
+	REG_INIT(AB9540_VSMPS1SEL1,		0x04, 0x13, 0x3f),
+	/*
+	 * 0x3f, Vsmps1Sel2
+	 */
+	REG_INIT(AB9540_VSMPS1SEL2,		0x04, 0x14, 0x3f),
+	/*
+	 * 0x3f, Vsmps1Sel3
+	 */
+	REG_INIT(AB9540_VSMPS1SEL3,		0x04, 0x15, 0x3f),
+	/*
+	 * 0x3f, Vsmps2Sel1
+	 */
+	REG_INIT(AB9540_VSMPS2SEL1,		0x04, 0x17, 0x3f),
+	/*
+	 * 0x3f, Vsmps2Sel2
+	 */
+	REG_INIT(AB9540_VSMPS2SEL2,		0x04, 0x18, 0x3f),
+	/*
+	 * 0x3f, Vsmps2Sel3
+	 */
+	REG_INIT(AB9540_VSMPS2SEL3,		0x04, 0x19, 0x3f),
+	/*
+	 * 0x7f, Vsmps3Sel1
+	 * NOTE! PRCMU register
+	 */
+	REG_INIT(AB9540_VSMPS3SEL1,             0x04, 0x1b, 0x7f),
+	/*
+	 * 0x7f, Vsmps3Sel2
+	 * NOTE! PRCMU register
+	 */
+	REG_INIT(AB9540_VSMPS3SEL2,             0x04, 0x1c, 0x7f),
+	/*
+	 * 0x0f, Vaux1Sel
+	 */
+	REG_INIT(AB9540_VAUX1SEL,		0x04, 0x1f, 0x0f),
+	/*
+	 * 0x0f, Vaux2Sel
+	 */
+	REG_INIT(AB9540_VAUX2SEL,		0x04, 0x20, 0x0f),
+	/*
+	 * 0x07, Vaux3Sel
+	 * 0x30, Vrf1Sel
+	 */
+	REG_INIT(AB9540_VRF1VAUX3SEL,		0x04, 0x21, 0x37),
+	/*
+	 * 0x01, VextSupply12LP
+	 */
+	REG_INIT(AB9540_REGUCTRL2SPARE,		0x04, 0x22, 0x01),
+	/*
+	 * 0x03, Vaux4RequestCtrl
+	 */
+	REG_INIT(AB9540_VAUX4REQCTRL,		0x04, 0x2d, 0x03),
+	/*
+	 * 0x03, Vaux4Regu
+	 */
+	REG_INIT(AB9540_VAUX4REGU,		0x04, 0x2e, 0x03),
+	/*
+	 * 0x08, Vaux4Sel
+	 */
+	REG_INIT(AB9540_VAUX4SEL,		0x04, 0x2f, 0x0f),
+	/*
+	 * 0x01, VpllDisch
+	 * 0x02, Vrf1Disch
+	 * 0x04, Vaux1Disch
+	 * 0x08, Vaux2Disch
+	 * 0x10, Vaux3Disch
+	 * 0x20, Vintcore12Disch
+	 * 0x40, VTVoutDisch
+	 * 0x80, VaudioDisch
+	 */
+	REG_INIT(AB9540_REGUCTRLDISCH,		0x04, 0x43, 0xff),
+	/*
+	 * 0x01, VsimDisch
+	 * 0x02, VanaDisch
+	 * 0x04, VdmicPullDownEna
+	 * 0x08, VpllPullDownEna
+	 * 0x10, VdmicDisch
+	 */
+	REG_INIT(AB9540_REGUCTRLDISCH2,		0x04, 0x44, 0x1f),
+	/*
+	 * 0x01, Vaux4Disch
+	 */
+	REG_INIT(AB9540_REGUCTRLDISCH3,		0x04, 0x48, 0x01),
+};
+
 static int ab8500_regulator_init_registers(struct platform_device *pdev,
 					   struct ab8500_reg_init *reg_init,
 					   int id, int mask, int value)
@@ -799,6 +1332,7 @@ static int ab8500_regulator_register(struct platform_device *pdev,
 				     struct ab8500_regulator_info *regulator_info,
 				     int id, struct device_node *np)
 {
+	struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
 	struct ab8500_regulator_info *info = NULL;
 	struct regulator_config config = { };
 	int err;
@@ -813,7 +1347,7 @@ static int ab8500_regulator_register(struct platform_device *pdev,
 	config.of_node = np;
 
 	/* fix for hardware before ab8500v2.0 */
-	if (abx500_get_chip_id(info->dev) < 0x20) {
+	if (is_ab8500_1p1_or_earlier(ab8500)) {
 		if (info->desc.id == AB8500_LDO_AUX3) {
 			info->desc.n_voltages =
 				ARRAY_SIZE(ldo_vauxn_voltages);
@@ -852,6 +1386,20 @@ static struct of_regulator_match ab8500_regulator_match[] = {
 	{ .name	= "ab8500_ldo_ana",     .driver_data = (void *) AB8500_LDO_ANA, },
 };
 
+static struct of_regulator_match ab9540_regulator_match[] = {
+	{ .name = "ab9540_ldo_aux1",    .driver_data = (void *) AB9540_LDO_AUX1, },
+	{ .name = "ab9540_ldo_aux2",    .driver_data = (void *) AB9540_LDO_AUX2, },
+	{ .name = "ab9540_ldo_aux3",    .driver_data = (void *) AB9540_LDO_AUX3, },
+	{ .name = "ab9540_ldo_intcore", .driver_data = (void *) AB9540_LDO_INTCORE, },
+	{ .name = "ab9540_ldo_tvout",   .driver_data = (void *) AB9540_LDO_TVOUT, },
+	{ .name = "ab9540_ldo_usb",     .driver_data = (void *) AB9540_LDO_USB, },
+	{ .name = "ab9540_ldo_audio",   .driver_data = (void *) AB9540_LDO_AUDIO, },
+	{ .name = "ab9540_ldo_anamic1", .driver_data = (void *) AB9540_LDO_ANAMIC1, },
+	{ .name = "ab9540_ldo_amamic2", .driver_data = (void *) AB9540_LDO_ANAMIC2, },
+	{ .name = "ab9540_ldo_dmic",    .driver_data = (void *) AB9540_LDO_DMIC, },
+	{ .name = "ab9540_ldo_ana",     .driver_data = (void *) AB9540_LDO_ANA, },
+};
+
 static int
 ab8500_regulator_of_probe(struct platform_device *pdev,
 			  struct ab8500_regulator_info *regulator_info,
@@ -885,12 +1433,21 @@ static int ab8500_regulator_probe(struct platform_device *pdev)
 	struct ab8500_reg_init *reg_init;
 	int reg_init_size;
 
-	regulator_info = ab8500_regulator_info;
-	regulator_info_size = ARRAY_SIZE(ab8500_regulator_info);
-	reg_init = ab8500_reg_init;
-	reg_init_size = AB8500_NUM_REGULATOR_REGISTERS;
-	match = ab8500_regulator_match;
-	match_size = ARRAY_SIZE(ab8500_regulator_match)
+	if (is_ab9540(ab8500)) {
+		regulator_info = ab9540_regulator_info;
+		regulator_info_size = ARRAY_SIZE(ab9540_regulator_info);
+		reg_init = ab9540_reg_init;
+		reg_init_size = AB9540_NUM_REGULATOR_REGISTERS;
+		match = ab9540_regulator_match;
+		match_size = ARRAY_SIZE(ab9540_regulator_match)
+	} else {
+		regulator_info = ab8500_regulator_info;
+		regulator_info_size = ARRAY_SIZE(ab8500_regulator_info);
+		reg_init = ab8500_reg_init;
+		reg_init_size = AB8500_NUM_REGULATOR_REGISTERS;
+		match = ab8500_regulator_match;
+		match_size = ARRAY_SIZE(ab8500_regulator_match)
+	}
 
 	if (np) {
 		err = of_regulator_match(&pdev->dev, np, match, match_size);
@@ -968,11 +1525,18 @@ static int ab8500_regulator_probe(struct platform_device *pdev)
 static int ab8500_regulator_remove(struct platform_device *pdev)
 {
 	int i, err;
+	struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
 	struct ab8500_regulator_info *regulator_info;
 	int regulator_info_size;
 
-	regulator_info = ab8500_regulator_info;
-	regulator_info_size = ARRAY_SIZE(ab8500_regulator_info);
+
+	if (is_ab9540(ab8500)) {
+		regulator_info = ab9540_regulator_info;
+		regulator_info_size = ARRAY_SIZE(ab9540_regulator_info);
+	} else {
+		regulator_info = ab8500_regulator_info;
+		regulator_info_size = ARRAY_SIZE(ab8500_regulator_info);
+	}
 
 	for (i = 0; i < regulator_info_size; i++) {
 		struct ab8500_regulator_info *info = NULL;
-- 
1.7.9.5

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