drivers/soc/zte/zx296718_pm_domains.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2017 ZTE Ltd.
   4  *
   5  * Author: Baoyou Xie <baoyou.xie@linaro.org>
   6  */
   7
   8 #include <dt-bindings/soc/zte,pm_domains.h>
   9 #include "zx2967_pm_domains.h"
  10
  11 static u16 zx296718_offsets[REG_ARRAY_SIZE] = {
  12         [REG_CLKEN] = 0x18,
  13         [REG_ISOEN] = 0x1c,
  14         [REG_RSTEN] = 0x20,
  15         [REG_PWREN] = 0x24,
  16         [REG_ACK_SYNC] = 0x28,
  17 };
  18
  19 enum {
  20         PCU_DM_VOU = 0,
  21         PCU_DM_SAPPU,
  22         PCU_DM_VDE,
  23         PCU_DM_VCE,
  24         PCU_DM_HDE,
  25         PCU_DM_VIU,
  26         PCU_DM_USB20,
  27         PCU_DM_USB21,
  28         PCU_DM_USB30,
  29         PCU_DM_HSIC,
  30         PCU_DM_GMAC,
  31         PCU_DM_TS,
  32 };
  33
  34 static struct zx2967_pm_domain vou_domain = {
  35         .dm = {
  36                 .name           = "vou_domain",
  37         },
  38         .bit = PCU_DM_VOU,
  39         .polarity = PWREN,
  40         .reg_offset = zx296718_offsets,
  41 };
  42
  43 static struct zx2967_pm_domain sappu_domain = {
  44         .dm = {
  45                 .name           = "sappu_domain",
  46         },
  47         .bit = PCU_DM_SAPPU,
  48         .polarity = PWREN,
  49         .reg_offset = zx296718_offsets,
  50 };
  51
  52 static struct zx2967_pm_domain vde_domain = {
  53         .dm = {
  54                 .name           = "vde_domain",
  55         },
  56         .bit = PCU_DM_VDE,
  57         .polarity = PWREN,
  58         .reg_offset = zx296718_offsets,
  59 };
  60
  61 static struct zx2967_pm_domain vce_domain = {
  62         .dm = {
  63                 .name           = "vce_domain",
  64         },
  65         .bit = PCU_DM_VCE,
  66         .polarity = PWREN,
  67         .reg_offset = zx296718_offsets,
  68 };
  69
  70 static struct zx2967_pm_domain hde_domain = {
  71         .dm = {
  72                 .name           = "hde_domain",
  73         },
  74         .bit = PCU_DM_HDE,
  75         .polarity = PWREN,
  76         .reg_offset = zx296718_offsets,
  77 };
  78
  79 static struct zx2967_pm_domain viu_domain = {
  80         .dm = {
  81                 .name           = "viu_domain",
  82         },
  83         .bit = PCU_DM_VIU,
  84         .polarity = PWREN,
  85         .reg_offset = zx296718_offsets,
  86 };
  87
  88 static struct zx2967_pm_domain usb20_domain = {
  89         .dm = {
  90                 .name           = "usb20_domain",
  91         },
  92         .bit = PCU_DM_USB20,
  93         .polarity = PWREN,
  94         .reg_offset = zx296718_offsets,
  95 };
  96
  97 static struct zx2967_pm_domain usb21_domain = {
  98         .dm = {
  99                 .name           = "usb21_domain",
 100         },
 101         .bit = PCU_DM_USB21,
 102         .polarity = PWREN,
 103         .reg_offset = zx296718_offsets,
 104 };
 105
 106 static struct zx2967_pm_domain usb30_domain = {
 107         .dm = {
 108                 .name           = "usb30_domain",
 109         },
 110         .bit = PCU_DM_USB30,
 111         .polarity = PWREN,
 112         .reg_offset = zx296718_offsets,
 113 };
 114
 115 static struct zx2967_pm_domain hsic_domain = {
 116         .dm = {
 117                 .name           = "hsic_domain",
 118         },
 119         .bit = PCU_DM_HSIC,
 120         .polarity = PWREN,
 121         .reg_offset = zx296718_offsets,
 122 };
 123
 124 static struct zx2967_pm_domain gmac_domain = {
 125         .dm = {
 126                 .name           = "gmac_domain",
 127         },
 128         .bit = PCU_DM_GMAC,
 129         .polarity = PWREN,
 130         .reg_offset = zx296718_offsets,
 131 };
 132
 133 static struct zx2967_pm_domain ts_domain = {
 134         .dm = {
 135                 .name           = "ts_domain",
 136         },
 137         .bit = PCU_DM_TS,
 138         .polarity = PWREN,
 139         .reg_offset = zx296718_offsets,
 140 };
 141
 142 static struct generic_pm_domain *zx296718_pm_domains[] = {
 143         [DM_ZX296718_VOU] = &vou_domain.dm,
 144         [DM_ZX296718_SAPPU] = &sappu_domain.dm,
 145         [DM_ZX296718_VDE] = &vde_domain.dm,
 146         [DM_ZX296718_VCE] = &vce_domain.dm,
 147         [DM_ZX296718_HDE] = &hde_domain.dm,
 148         [DM_ZX296718_VIU] = &viu_domain.dm,
 149         [DM_ZX296718_USB20] = &usb20_domain.dm,
 150         [DM_ZX296718_USB21] = &usb21_domain.dm,
 151         [DM_ZX296718_USB30] = &usb30_domain.dm,
 152         [DM_ZX296718_HSIC] = &hsic_domain.dm,
 153         [DM_ZX296718_GMAC] = &gmac_domain.dm,
 154         [DM_ZX296718_TS] = &ts_domain.dm,
 155 };
 156
 157 static int zx296718_pd_probe(struct platform_device *pdev)
 158 {
 159         return zx2967_pd_probe(pdev,
 160                           zx296718_pm_domains,
 161                           ARRAY_SIZE(zx296718_pm_domains));
 162 }
 163
 164 static const struct of_device_id zx296718_pm_domain_matches[] = {
 165         { .compatible = "zte,zx296718-pcu", },
 166         { },
 167 };
 168
 169 static struct platform_driver zx296718_pd_driver = {
 170         .driver = {
 171                 .name = "zx296718-powerdomain",
 172                 .of_match_table = zx296718_pm_domain_matches,
 173         },
 174         .probe = zx296718_pd_probe,
 175 };
 176
 177 static int __init zx296718_pd_init(void)
 178 {
 179         return platform_driver_register(&zx296718_pd_driver);
 180 }
 181 subsys_initcall(zx296718_pd_init);