projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| d6d8b481 CY |
1 | /* linux/arch/arm/mach-s5pv310/dev-pd.c |
| 2 | * | |
| 3 | * Copyright (c) 2010 Samsung Electronics Co., Ltd. | |
| 4 | * http://www.samsung.com | |
| 5 | * | |
| 6 | * S5PV310 - Power Domain support | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | */ | |
| 12 | ||
| 13 | #include <linux/io.h> | |
| 14 | #include <linux/kernel.h> | |
| 15 | #include <linux/platform_device.h> | |
| 16 | #include <linux/delay.h> | |
| 17 | ||
| 18 | #include <mach/regs-pmu.h> | |
| 19 | ||
| 20 | #include <plat/pd.h> | |
| 21 | ||
| 22 | static int s5pv310_pd_enable(struct device *dev) | |
| 23 | { | |
| 24 | struct samsung_pd_info *pdata = dev->platform_data; | |
| 25 | u32 timeout; | |
| 26 | ||
| 27 | __raw_writel(S5P_INT_LOCAL_PWR_EN, pdata->base); | |
| 28 | ||
| 29 | /* Wait max 1ms */ | |
| 30 | timeout = 10; | |
| 31 | while ((__raw_readl(pdata->base + 0x4) & S5P_INT_LOCAL_PWR_EN) | |
| 32 | != S5P_INT_LOCAL_PWR_EN) { | |
| 33 | if (timeout == 0) { | |
| 34 | printk(KERN_ERR "Power domain %s enable failed.\n", | |
| 35 | dev_name(dev)); | |
| 36 | return -ETIMEDOUT; | |
| 37 | } | |
| 38 | timeout--; | |
| 39 | udelay(100); | |
| 40 | } | |
| 41 | ||
| 42 | return 0; | |
| 43 | } | |
| 44 | ||
| 45 | static int s5pv310_pd_disable(struct device *dev) | |
| 46 | { | |
| 47 | struct samsung_pd_info *pdata = dev->platform_data; | |
| 48 | u32 timeout; | |
| 49 | ||
| 50 | __raw_writel(0, pdata->base); | |
| 51 | ||
| 52 | /* Wait max 1ms */ | |
| 53 | timeout = 10; | |
| 54 | while (__raw_readl(pdata->base + 0x4) & S5P_INT_LOCAL_PWR_EN) { | |
| 55 | if (timeout == 0) { | |
| 56 | printk(KERN_ERR "Power domain %s disable failed.\n", | |
| 57 | dev_name(dev)); | |
| 58 | return -ETIMEDOUT; | |
| 59 | } | |
| 60 | timeout--; | |
| 61 | udelay(100); | |
| 62 | } | |
| 63 | ||
| 64 | return 0; | |
| 65 | } | |
| 66 | ||
| 67 | struct platform_device s5pv310_device_pd[] = { | |
| 68 | { | |
| 69 | .name = "samsung-pd", | |
| 70 | .id = 0, | |
| 71 | .dev = { | |
| 72 | .platform_data = &(struct samsung_pd_info) { | |
| 73 | .enable = s5pv310_pd_enable, | |
| 74 | .disable = s5pv310_pd_disable, | |
| 75 | .base = S5P_PMU_MFC_CONF, | |
| 76 | }, | |
| 77 | }, | |
| 78 | }, { | |
| 79 | .name = "samsung-pd", | |
| 80 | .id = 1, | |
| 81 | .dev = { | |
| 82 | .platform_data = &(struct samsung_pd_info) { | |
| 83 | .enable = s5pv310_pd_enable, | |
| 84 | .disable = s5pv310_pd_disable, | |
| 85 | .base = S5P_PMU_G3D_CONF, | |
| 86 | }, | |
| 87 | }, | |
| 88 | }, { | |
| 89 | .name = "samsung-pd", | |
| 90 | .id = 2, | |
| 91 | .dev = { | |
| 92 | .platform_data = &(struct samsung_pd_info) { | |
| 93 | .enable = s5pv310_pd_enable, | |
| 94 | .disable = s5pv310_pd_disable, | |
| 95 | .base = S5P_PMU_LCD0_CONF, | |
| 96 | }, | |
| 97 | }, | |
| 98 | }, { | |
| 99 | .name = "samsung-pd", | |
| 100 | .id = 3, | |
| 101 | .dev = { | |
| 102 | .platform_data = &(struct samsung_pd_info) { | |
| 103 | .enable = s5pv310_pd_enable, | |
| 104 | .disable = s5pv310_pd_disable, | |
| 105 | .base = S5P_PMU_LCD1_CONF, | |
| 106 | }, | |
| 107 | }, | |
| 108 | }, { | |
| 109 | .name = "samsung-pd", | |
| 110 | .id = 4, | |
| 111 | .dev = { | |
| 112 | .platform_data = &(struct samsung_pd_info) { | |
| 113 | .enable = s5pv310_pd_enable, | |
| 114 | .disable = s5pv310_pd_disable, | |
| 115 | .base = S5P_PMU_TV_CONF, | |
| 116 | }, | |
| 117 | }, | |
| 118 | }, { | |
| 119 | .name = "samsung-pd", | |
| 120 | .id = 5, | |
| 121 | .dev = { | |
| 122 | .platform_data = &(struct samsung_pd_info) { | |
| 123 | .enable = s5pv310_pd_enable, | |
| 124 | .disable = s5pv310_pd_disable, | |
| 125 | .base = S5P_PMU_CAM_CONF, | |
| 126 | }, | |
| 127 | }, | |
| 128 | }, { | |
| 129 | .name = "samsung-pd", | |
| 130 | .id = 6, | |
| 131 | .dev = { | |
| 132 | .platform_data = &(struct samsung_pd_info) { | |
| 133 | .enable = s5pv310_pd_enable, | |
| 134 | .disable = s5pv310_pd_disable, | |
| 135 | .base = S5P_PMU_GPS_CONF, | |
| 136 | }, | |
| 137 | }, | |
| 138 | }, | |
| 139 | }; |