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soc: dove: add legacy support to PMU driver

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Add support for legacy non-DT Dove to the PMU driver, so that we can
transition the legacy support over.

[gregory.clement@free-electrons.com: removed pm_genpd_poweroff_unused]
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
This commit is contained in:
Russell King 2015-12-08 10:43:28 +00:00 committed by Gregory CLEMENT
parent 63cddd25fa
commit 67098119ab
3 changed files with 63 additions and 0 deletions
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1
drivers/soc/Makefile
View file

@ -3,6 +3,7 @@
#
obj-$(CONFIG_SOC_BRCMSTB) += brcmstb/
obj-$(CONFIG_ARCH_DOVE) += dove/
obj-$(CONFIG_MACH_DOVE) += dove/
obj-$(CONFIG_ARCH_MEDIATEK) += mediatek/
obj-$(CONFIG_ARCH_QCOM) += qcom/

43
drivers/soc/dove/pmu.c
View file

@ -305,6 +305,49 @@ static int __init dove_init_pmu_irq(struct pmu_data *pmu, int irq)
return 0;
}
int __init dove_init_pmu_legacy(const struct dove_pmu_initdata *initdata)
{
const struct dove_pmu_domain_initdata *domain_initdata;
struct pmu_data *pmu;
int ret;
pmu = kzalloc(sizeof(*pmu), GFP_KERNEL);
if (!pmu)
return -ENOMEM;
spin_lock_init(&pmu->lock);
pmu->pmc_base = initdata->pmc_base;
pmu->pmu_base = initdata->pmu_base;
pmu_reset_init(pmu);
for (domain_initdata = initdata->domains; domain_initdata->name;
domain_initdata++) {
struct pmu_domain *domain;
domain = kzalloc(sizeof(*domain), GFP_KERNEL);
if (domain) {
domain->pmu = pmu;
domain->pwr_mask = domain_initdata->pwr_mask;
domain->rst_mask = domain_initdata->rst_mask;
domain->iso_mask = domain_initdata->iso_mask;
domain->base.name = domain_initdata->name;
__pmu_domain_register(domain, NULL);
}
}
ret = dove_init_pmu_irq(pmu, initdata->irq);
if (ret)
pr_err("dove_init_pmu_irq() failed: %d\n", ret);
if (pmu->irq_domain)
irq_domain_associate_many(pmu->irq_domain,
initdata->irq_domain_start,
0, NR_PMU_IRQS);
return 0;
}
/*
* pmu: power-manager@d0000 {
* compatible = "marvell,dove-pmu";

19
include/linux/soc/dove/pmu.h
View file

@ -1,6 +1,25 @@
#ifndef LINUX_SOC_DOVE_PMU_H
#define LINUX_SOC_DOVE_PMU_H
#include <linux/types.h>
struct dove_pmu_domain_initdata {
u32 pwr_mask;
u32 rst_mask;
u32 iso_mask;
const char *name;
};
struct dove_pmu_initdata {
void __iomem *pmc_base;
void __iomem *pmu_base;
int irq;
int irq_domain_start;
const struct dove_pmu_domain_initdata *domains;
};
int dove_init_pmu_legacy(const struct dove_pmu_initdata *);
int dove_init_pmu(void);
#endif