ENGR00124788-2 MX53 ARD: Add Linear PMIC support

MX53 ARD: Add Linear PMIC support.

Signed-off-by: Nancy Chen <Nancy.Chen@freescale.com>

4 files changed, 234 insertions, 7 deletions

diff --git a/arch/arm/configs/imx5_defconfig b/arch/arm/configs/imx5_defconfig
index 1dcbff5ac691..0de460c46bae 100644
--- a/arch/arm/configs/imx5_defconfig
+++ b/arch/arm/configs/imx5_defconfig
@@ -1259,6 +1259,8 @@ CONFIG_MFD_SUPPORT=y
 # CONFIG_MFD_WM831X is not set
 # CONFIG_MFD_WM8350_I2C is not set
 # CONFIG_MFD_WM8994 is not set
+CONFIG_MFD_LTC3589=y
+CONFIG_MFD_LTC3589_I2C=y
 # CONFIG_MFD_PCF50633 is not set
 # CONFIG_MFD_MC13783 is not set
 # CONFIG_ABX500_CORE is not set
@@ -1279,6 +1281,7 @@ CONFIG_REGULATOR=y
 # CONFIG_REGULATOR_TPS65023 is not set
 # CONFIG_REGULATOR_TPS6507X is not set
 CONFIG_REGULATOR_MC13892=y
+CONFIG_REGULATOR_LTC3589=y
 CONFIG_REGULATOR_MAX17135=y
 CONFIG_MEDIA_SUPPORT=y
 
diff --git a/arch/arm/mach-mx5/Makefile b/arch/arm/mach-mx5/Makefile
index 44c6bf43764e..db0e2fe3dc60 100644
--- a/arch/arm/mach-mx5/Makefile
+++ b/arch/arm/mach-mx5/Makefile
@@ -13,7 +13,7 @@ obj-$(CONFIG_ARCH_MX50) += clock_mx50.o dmaengine.o dma-apbh.o mx50_suspend.o mx
 obj-$(CONFIG_MACH_MX51_3DS) += mx51_3stack.o mx51_3stack_gpio.o mx51_3stack_pmic_mc13892.o
 obj-$(CONFIG_MACH_MX51_BABBAGE) += mx51_babbage.o mx51_babbage_pmic_mc13892.o
 obj-$(CONFIG_MACH_MX53_EVK) += mx53_evk.o mx53_evk_pmic_mc13892.o
-obj-$(CONFIG_MACH_MX53_ARD) += mx53_ard.o
+obj-$(CONFIG_MACH_MX53_ARD) += mx53_ard.o mx53_ard_pmic_ltc3589.o
 obj-$(CONFIG_MACH_MX50_ARM2) += mx50_arm2.o mx50_arm2_pmic_mc13892.o
 obj-$(CONFIG_MACH_MX50_RDP) += mx50_rdp.o mx50_rdp_pmic_mc13892.o
 
diff --git a/arch/arm/mach-mx5/mx53_ard.c b/arch/arm/mach-mx5/mx53_ard.c
index d58015db3e66..6a38f2bb7ad2 100644
--- a/arch/arm/mach-mx5/mx53_ard.c
+++ b/arch/arm/mach-mx5/mx53_ard.c
@@ -712,7 +712,7 @@ static int __init mxc_init_fb(void)
 device_initcall(mxc_init_fb);
 
 static struct mxc_audio_codec_platform_data cs42888_data = {
-	.analog_regulator = "VSD",
+	.analog_regulator = NULL,
 };
 
 static int mx53_ard_max7310_setup(struct i2c_client *client,
@@ -751,10 +751,6 @@ static struct i2c_board_info mxc_i2c1_board_info[] __initdata = {
 	.platform_data = &cs42888_data,
 	},
 	{
-	.type = "ltc3589",
-	.addr = 0x34,
-	},
-	{
 	.type = "ipod",
 	.addr = 0x10,
 	},
@@ -1039,7 +1035,7 @@ static struct platform_device ard_smsc_lan9220_device = {
 };
 
 static struct mxc_mlb_platform_data mlb_data = {
-	.reg_nvcc = "VCAM",
+	.reg_nvcc = NULL,
 	.mlb_clk = "mlb_clk",
 };
 
diff --git a/arch/arm/mach-mx5/mx53_ard_pmic_ltc3589.c b/arch/arm/mach-mx5/mx53_ard_pmic_ltc3589.c
new file mode 100644
index 000000000000..fe3880eecde2
--- /dev/null
+++ b/arch/arm/mach-mx5/mx53_ard_pmic_ltc3589.c
@@ -0,0 +1,228 @@
+/*
+ * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * mx53_ard_pmic_ltc3589.c  --  i.MX53 ARD Driver for Linear LTC3589
+ * PMIC
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/regulator/ltc3589.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/ltc3589/core.h>
+#include <mach/iomux-mx53.h>
+#include <mach/irqs.h>
+
+#define ARD_PMIC_INT			(4*32 + 7)	/* GPIO_5_7 */
+
+/* CPU */
+static struct regulator_consumer_supply sw1_consumers[] = {
+	{
+		.supply = "cpu_vcc",
+	}
+};
+
+struct ltc3589;
+
+static struct regulator_init_data sw1_init = {
+	.constraints = {
+		.name = "SW1",
+		.min_uV = 564000,
+		.max_uV = 1167000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+		.valid_modes_mask = 0,
+		.always_on = 1,
+		.boot_on = 1,
+		.initial_state = PM_SUSPEND_MEM,
+		.state_mem = {
+			.uV = 950000,
+			.mode = REGULATOR_MODE_NORMAL,
+			.enabled = 1,
+		},
+	},
+	.num_consumer_supplies = ARRAY_SIZE(sw1_consumers),
+	.consumer_supplies = sw1_consumers,
+};
+
+static struct regulator_init_data sw2_init = {
+	.constraints = {
+		.name = "SW2",
+		.min_uV = 644000,
+		.max_uV = 1331000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+		.always_on = 1,
+		.boot_on = 1,
+		.initial_state = PM_SUSPEND_MEM,
+		.state_mem = {
+			.uV = 950000,
+			.mode = REGULATOR_MODE_NORMAL,
+			.enabled = 1,
+		},
+	},
+};
+
+static struct regulator_init_data sw3_init = {
+	.constraints = {
+		.name = "SW3",
+		.min_uV = 1342000,
+		.max_uV = 2775000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+		.always_on = 1,
+		.boot_on = 1,
+	},
+};
+
+static struct regulator_init_data sw4_init = {
+	.constraints = {
+		.name = "SW4",
+		.apply_uV = 1,
+		.boot_on = 1,
+	}
+};
+
+static struct regulator_init_data ldo1_init = {
+	.constraints = {
+		.name = "LDO1_STBY",
+		.apply_uV = 1,
+		.boot_on = 1,
+		},
+};
+
+static struct regulator_init_data ldo2_init = {
+	.constraints = {
+		.name = "LDO2",
+		.min_uV = 644000,
+		.max_uV = 1331000,
+		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+		.valid_modes_mask = REGULATOR_MODE_NORMAL,
+		.always_on = 1,
+		.boot_on = 1,
+	},
+};
+
+static struct regulator_init_data ldo3_init = {
+	.constraints = {
+			.name = "LDO3",
+			.apply_uV = 1,
+			.boot_on = 1,
+			},
+};
+
+static struct regulator_init_data ldo4_init = {
+	.constraints = {
+			.name = "LDO4",
+			.min_uV = 1800000,
+			.max_uV = 3300000,
+			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+			.valid_modes_mask = REGULATOR_MODE_NORMAL,
+			.always_on = 1,
+			.boot_on = 1,
+			},
+};
+
+static void ltc3589_nop_release(struct device *dev)
+{
+	/* Nothing */
+}
+
+static struct platform_device ltc3589_regulator_device[] = {
+	{
+	.name = "ltc3589-dev",
+	.id = 0,
+	.dev = {
+		.release = ltc3589_nop_release,
+		},
+			},
+};
+
+static int mx53_ltc3589_init(struct ltc3589 *ltc3589)
+{
+	int i;
+
+	printk(KERN_INFO "Initializing regulators for ARD\n");
+	for (i = 0; i < ARRAY_SIZE(ltc3589_regulator_device); i++) {
+		if (platform_device_register(&ltc3589_regulator_device[i]) < 0)
+			dev_err(&ltc3589_regulator_device[i].dev,
+				"Unable to register LTC3589 device\n");
+	}
+
+	ltc3589_register_regulator(ltc3589, LTC3589_SW1, &sw1_init);
+	ltc3589_register_regulator(ltc3589, LTC3589_SW2, &sw2_init);
+	ltc3589_register_regulator(ltc3589, LTC3589_SW3, &sw3_init);
+	ltc3589_register_regulator(ltc3589, LTC3589_SW4, &sw4_init);
+	ltc3589_register_regulator(ltc3589, LTC3589_LDO1, &ldo1_init);
+	ltc3589_register_regulator(ltc3589, LTC3589_LDO2, &ldo2_init);
+	ltc3589_register_regulator(ltc3589, LTC3589_LDO3, &ldo3_init);
+	ltc3589_register_regulator(ltc3589, LTC3589_LDO4, &ldo4_init);
+
+	return 0;
+}
+
+static struct ltc3589_platform_data __initdata ltc3589_plat = {
+	.init = mx53_ltc3589_init,
+};
+
+static struct i2c_board_info __initdata ltc3589_i2c_device = {
+	I2C_BOARD_INFO("ltc3589", 0x34),
+	.irq = IOMUX_TO_IRQ_V3(ARD_PMIC_INT),
+	.platform_data = &ltc3589_plat,
+};
+
+static __init int mx53_init_i2c(void)
+{
+	return i2c_register_board_info(1, &ltc3589_i2c_device, 1);
+}
+
+subsys_initcall(mx53_init_i2c);
+
+static __init int ltc3589_pmic_init(void)
+{
+	int i = 0;
+	int ret = 0;
+	struct regulator *regulator;
+
+	char *ltc3589_global_regulator[] = {
+		"SW1",
+		"SW2",
+		"SW3",
+		"SW4",
+		"LDO1_STBY",
+		"LDO2",
+		"LDO3",
+		"LDO4",
+	};
+
+	while ((i < ARRAY_SIZE(ltc3589_global_regulator)) &&
+		!IS_ERR_VALUE(
+			(unsigned long)(regulator =
+					regulator_get(NULL,
+						ltc3589_global_regulator
+						[i])))) {
+		regulator_enable(regulator);
+		i++;
+	}
+
+	return ret;
+}
+
+late_initcall(ltc3589_pmic_init);
+