Merge branch 'next/soc-exynos5250-arch' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6.git] / arch / arm / mach-tegra / board-harmony-power.c
1 /*
2  * Copyright (C) 2010 NVIDIA, Inc.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, write to the Free Software
15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
16  * 02111-1307, USA
17  */
18 #include <linux/i2c.h>
19 #include <linux/platform_device.h>
20 #include <linux/gpio.h>
21 #include <linux/io.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/mfd/tps6586x.h>
24
25 #include <mach/iomap.h>
26 #include <mach/irqs.h>
27
28 #include "board-harmony.h"
29
30 #define PMC_CTRL                0x0
31 #define PMC_CTRL_INTR_LOW       (1 << 17)
32
33 static struct regulator_consumer_supply tps658621_ldo0_supply[] = {
34         REGULATOR_SUPPLY("pex_clk", NULL),
35 };
36
37 static struct regulator_init_data ldo0_data = {
38         .constraints = {
39                 .min_uV = 1250 * 1000,
40                 .max_uV = 3300 * 1000,
41                 .valid_modes_mask = (REGULATOR_MODE_NORMAL |
42                                      REGULATOR_MODE_STANDBY),
43                 .valid_ops_mask = (REGULATOR_CHANGE_MODE |
44                                    REGULATOR_CHANGE_STATUS |
45                                    REGULATOR_CHANGE_VOLTAGE),
46         },
47         .num_consumer_supplies = ARRAY_SIZE(tps658621_ldo0_supply),
48         .consumer_supplies = tps658621_ldo0_supply,
49 };
50
51 #define HARMONY_REGULATOR_INIT(_id, _minmv, _maxmv)                     \
52         static struct regulator_init_data _id##_data = {                \
53                 .constraints = {                                        \
54                         .min_uV = (_minmv)*1000,                        \
55                         .max_uV = (_maxmv)*1000,                        \
56                         .valid_modes_mask = (REGULATOR_MODE_NORMAL |    \
57                                              REGULATOR_MODE_STANDBY),   \
58                         .valid_ops_mask = (REGULATOR_CHANGE_MODE |      \
59                                            REGULATOR_CHANGE_STATUS |    \
60                                            REGULATOR_CHANGE_VOLTAGE),   \
61                 },                                                      \
62         }
63
64 HARMONY_REGULATOR_INIT(sm0, 725, 1500);
65 HARMONY_REGULATOR_INIT(sm1, 725, 1500);
66 HARMONY_REGULATOR_INIT(sm2, 3000, 4550);
67 HARMONY_REGULATOR_INIT(ldo1, 725, 1500);
68 HARMONY_REGULATOR_INIT(ldo2, 725, 1500);
69 HARMONY_REGULATOR_INIT(ldo3, 1250, 3300);
70 HARMONY_REGULATOR_INIT(ldo4, 1700, 2475);
71 HARMONY_REGULATOR_INIT(ldo5, 1250, 3300);
72 HARMONY_REGULATOR_INIT(ldo6, 1250, 3300);
73 HARMONY_REGULATOR_INIT(ldo7, 1250, 3300);
74 HARMONY_REGULATOR_INIT(ldo8, 1250, 3300);
75 HARMONY_REGULATOR_INIT(ldo9, 1250, 3300);
76
77 #define TPS_REG(_id, _data)                     \
78         {                                       \
79                 .id = TPS6586X_ID_##_id,        \
80                 .name = "tps6586x-regulator",   \
81                 .platform_data = _data,         \
82         }
83
84 static struct tps6586x_subdev_info tps_devs[] = {
85         TPS_REG(SM_0, &sm0_data),
86         TPS_REG(SM_1, &sm1_data),
87         TPS_REG(SM_2, &sm2_data),
88         TPS_REG(LDO_0, &ldo0_data),
89         TPS_REG(LDO_1, &ldo1_data),
90         TPS_REG(LDO_2, &ldo2_data),
91         TPS_REG(LDO_3, &ldo3_data),
92         TPS_REG(LDO_4, &ldo4_data),
93         TPS_REG(LDO_5, &ldo5_data),
94         TPS_REG(LDO_6, &ldo6_data),
95         TPS_REG(LDO_7, &ldo7_data),
96         TPS_REG(LDO_8, &ldo8_data),
97         TPS_REG(LDO_9, &ldo9_data),
98 };
99
100 static struct tps6586x_platform_data tps_platform = {
101         .irq_base       = TEGRA_NR_IRQS,
102         .num_subdevs    = ARRAY_SIZE(tps_devs),
103         .subdevs        = tps_devs,
104         .gpio_base      = HARMONY_GPIO_TPS6586X(0),
105 };
106
107 static struct i2c_board_info __initdata harmony_regulators[] = {
108         {
109                 I2C_BOARD_INFO("tps6586x", 0x34),
110                 .irq            = INT_EXTERNAL_PMU,
111                 .platform_data  = &tps_platform,
112         },
113 };
114
115 int __init harmony_regulator_init(void)
116 {
117         void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
118         u32 pmc_ctrl;
119
120         /*
121          * Configure the power management controller to trigger PMU
122          * interrupts when low
123          */
124         pmc_ctrl = readl(pmc + PMC_CTRL);
125         writel(pmc_ctrl | PMC_CTRL_INTR_LOW, pmc + PMC_CTRL);
126
127         i2c_register_board_info(3, harmony_regulators, 1);
128
129         return 0;
130 }