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Commit 67098119 authored by Russell King's avatar Russell King Committed by Gregory CLEMENT
Browse files

soc: dove: add legacy support to PMU driver 



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: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
parent 63cddd25

drivers/soc/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -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/

drivers/soc/dove/pmu.c

+43 −0
Original line number Diff line number Diff line
@@ -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";

include/linux/soc/dove/pmu.h

+19 −0
Original line number Diff line number Diff line 
#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