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soc: zte: pm_domains: Add support for zx296718

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This patch introduces the power domain driver of zx296718
which belongs to zte's zx2967 family.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Reviewed-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Baoyou Xie 2017-01-06 17:16:04 +08:00 committed by Shawn Guo
parent 4c2c2e3971
commit 3755584a91
2 changed files with 183 additions and 0 deletions
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1
drivers/soc/zte/Makefile
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@ -2,3 +2,4 @@
# ZTE SOC drivers
#
obj-$(CONFIG_ZX2967_PM_DOMAINS) += zx2967_pm_domains.o
obj-$(CONFIG_ZX2967_PM_DOMAINS) += zx296718_pm_domains.o

182
drivers/soc/zte/zx296718_pm_domains.c Normal file
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@ -0,0 +1,182 @@
/*
* Copyright (C) 2017 ZTE Ltd.
*
* Author: Baoyou Xie <baoyou.xie@linaro.org>
* License terms: GNU General Public License (GPL) version 2
*/
#include <dt-bindings/soc/zte,pm_domains.h>
#include "zx2967_pm_domains.h"
static u16 zx296718_offsets[REG_ARRAY_SIZE] = {
[REG_CLKEN] = 0x18,
[REG_ISOEN] = 0x1c,
[REG_RSTEN] = 0x20,
[REG_PWREN] = 0x24,
[REG_ACK_SYNC] = 0x28,
};
enum {
PCU_DM_VOU = 0,
PCU_DM_SAPPU,
PCU_DM_VDE,
PCU_DM_VCE,
PCU_DM_HDE,
PCU_DM_VIU,
PCU_DM_USB20,
PCU_DM_USB21,
PCU_DM_USB30,
PCU_DM_HSIC,
PCU_DM_GMAC,
PCU_DM_TS,
};
static struct zx2967_pm_domain vou_domain = {
.dm = {
.name = "vou_domain",
},
.bit = PCU_DM_VOU,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain sappu_domain = {
.dm = {
.name = "sappu_domain",
},
.bit = PCU_DM_SAPPU,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain vde_domain = {
.dm = {
.name = "vde_domain",
},
.bit = PCU_DM_VDE,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain vce_domain = {
.dm = {
.name = "vce_domain",
},
.bit = PCU_DM_VCE,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain hde_domain = {
.dm = {
.name = "hde_domain",
},
.bit = PCU_DM_HDE,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain viu_domain = {
.dm = {
.name = "viu_domain",
},
.bit = PCU_DM_VIU,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain usb20_domain = {
.dm = {
.name = "usb20_domain",
},
.bit = PCU_DM_USB20,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain usb21_domain = {
.dm = {
.name = "usb21_domain",
},
.bit = PCU_DM_USB21,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain usb30_domain = {
.dm = {
.name = "usb30_domain",
},
.bit = PCU_DM_USB30,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain hsic_domain = {
.dm = {
.name = "hsic_domain",
},
.bit = PCU_DM_HSIC,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain gmac_domain = {
.dm = {
.name = "gmac_domain",
},
.bit = PCU_DM_GMAC,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct zx2967_pm_domain ts_domain = {
.dm = {
.name = "ts_domain",
},
.bit = PCU_DM_TS,
.polarity = PWREN,
.reg_offset = zx296718_offsets,
};
static struct generic_pm_domain *zx296718_pm_domains[] = {
[DM_ZX296718_VOU] = &vou_domain.dm,
[DM_ZX296718_SAPPU] = &sappu_domain.dm,
[DM_ZX296718_VDE] = &vde_domain.dm,
[DM_ZX296718_VCE] = &vce_domain.dm,
[DM_ZX296718_HDE] = &hde_domain.dm,
[DM_ZX296718_VIU] = &viu_domain.dm,
[DM_ZX296718_USB20] = &usb20_domain.dm,
[DM_ZX296718_USB21] = &usb21_domain.dm,
[DM_ZX296718_USB30] = &usb30_domain.dm,
[DM_ZX296718_HSIC] = &hsic_domain.dm,
[DM_ZX296718_GMAC] = &gmac_domain.dm,
[DM_ZX296718_TS] = &ts_domain.dm,
};
static int zx296718_pd_probe(struct platform_device *pdev)
{
return zx2967_pd_probe(pdev,
zx296718_pm_domains,
ARRAY_SIZE(zx296718_pm_domains));
}
static const struct of_device_id zx296718_pm_domain_matches[] = {
{ .compatible = "zte,zx296718-pcu", },
{ },
};
static struct platform_driver zx296718_pd_driver = {
.driver = {
.name = "zx296718-powerdomain",
.owner = THIS_MODULE,
.of_match_table = zx296718_pm_domain_matches,
},
.probe = zx296718_pd_probe,
};
static int __init zx296718_pd_init(void)
{
return platform_driver_register(&zx296718_pd_driver);
}
subsys_initcall(zx296718_pd_init);