Merge branch 'renesas-soc-core' into renesas-r8a7740
* renesas-soc-core: ARM: shmobile: soc-core: add R-mobile PM domain common APIs ARM: mach-shmobile: Convert sh_clk_mstp32_register to sh_clk_mstp_register Conflicts: arch/arm/mach-shmobile/clock-r8a7740.c
This commit is contained in:
Rafael J. Wysocki
Коммит
2f7d41217b
|
|
@ -39,6 +39,7 @@ obj-$(CONFIG_ARCH_R8A7740) += entry-intc.o
|
|||
# PM objects
|
||||
obj-$(CONFIG_SUSPEND) += suspend.o
|
||||
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
|
||||
obj-$(CONFIG_ARCH_SHMOBILE) += pm-rmobile.o
|
||||
obj-$(CONFIG_ARCH_SH7372) += pm-sh7372.o sleep-sh7372.o
|
||||
obj-$(CONFIG_ARCH_R8A7779) += pm-r8a7779.o
|
||||
|
||||
|
|
|
|||
|
|
@ -636,7 +636,7 @@ void __init r8a7740_clock_init(u8 md_ck)
|
|||
DIV6_REPARENT_NR);
|
||||
|
||||
if (!ret)
|
||||
ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
|
||||
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
|
||||
|
||||
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
|
||||
ret = clk_register(late_main_clks[k]);
|
||||
|
|
|
|||
|
|
@ -162,7 +162,7 @@ void __init r8a7779_clock_init(void)
|
|||
ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
|
||||
|
||||
if (!ret)
|
||||
ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
|
||||
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
|
||||
|
||||
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
|
||||
ret = clk_register(late_main_clks[k]);
|
||||
|
|
|
|||
|
|
@ -344,7 +344,7 @@ void __init sh7367_clock_init(void)
|
|||
ret = sh_clk_div6_register(div6_clks, DIV6_NR);
|
||||
|
||||
if (!ret)
|
||||
ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
|
||||
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
|
||||
|
||||
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
|
||||
|
||||
|
|
|
|||
|
|
@ -704,7 +704,7 @@ void __init sh7372_clock_init(void)
|
|||
ret = sh_clk_div6_reparent_register(div6_reparent_clks, DIV6_REPARENT_NR);
|
||||
|
||||
if (!ret)
|
||||
ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
|
||||
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
|
||||
|
||||
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
|
||||
ret = clk_register(late_main_clks[k]);
|
||||
|
|
|
|||
|
|
@ -355,7 +355,7 @@ void __init sh7377_clock_init(void)
|
|||
ret = sh_clk_div6_register(div6_clks, DIV6_NR);
|
||||
|
||||
if (!ret)
|
||||
ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
|
||||
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
|
||||
|
||||
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
|
||||
|
||||
|
|
|
|||
|
|
@ -612,7 +612,7 @@ void __init sh73a0_clock_init(void)
|
|||
ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR);
|
||||
|
||||
if (!ret)
|
||||
ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
|
||||
ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
|
||||
|
||||
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
|
||||
ret = clk_register(late_main_clks[k]);
|
||||
|
|
|
|||
|
|
@ -0,0 +1,44 @@
|
|||
/*
|
||||
* Copyright (C) 2012 Renesas Solutions Corp.
|
||||
*
|
||||
* Kuninori Morimoto <morimoto.kuninori@renesas.com>
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file "COPYING" in the main directory of this archive
|
||||
* for more details.
|
||||
*/
|
||||
#ifndef PM_RMOBILE_H
|
||||
#define PM_RMOBILE_H
|
||||
|
||||
#include <linux/pm_domain.h>
|
||||
|
||||
struct platform_device;
|
||||
|
||||
struct rmobile_pm_domain {
|
||||
struct generic_pm_domain genpd;
|
||||
struct dev_power_governor *gov;
|
||||
int (*suspend)(void);
|
||||
void (*resume)(void);
|
||||
unsigned int bit_shift;
|
||||
bool no_debug;
|
||||
};
|
||||
|
||||
static inline
|
||||
struct rmobile_pm_domain *to_rmobile_pd(struct generic_pm_domain *d)
|
||||
{
|
||||
return container_of(d, struct rmobile_pm_domain, genpd);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
extern void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd);
|
||||
extern void rmobile_add_device_to_domain(struct rmobile_pm_domain *rmobile_pd,
|
||||
struct platform_device *pdev);
|
||||
extern void rmobile_pm_add_subdomain(struct rmobile_pm_domain *rmobile_pd,
|
||||
struct rmobile_pm_domain *rmobile_sd);
|
||||
#else
|
||||
#define rmobile_init_pm_domain(pd) do { } while (0)
|
||||
#define rmobile_add_device_to_domain(pd, pdev) do { } while (0)
|
||||
#define rmobile_pm_add_subdomain(pd, sd) do { } while (0)
|
||||
#endif /* CONFIG_PM */
|
||||
|
||||
#endif /* PM_RMOBILE_H */
|
||||
|
|
@ -0,0 +1,167 @@
|
|||
/*
|
||||
* rmobile power management support
|
||||
*
|
||||
* Copyright (C) 2012 Renesas Solutions Corp.
|
||||
* Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
||||
*
|
||||
* based on pm-sh7372.c
|
||||
* Copyright (C) 2011 Magnus Damm
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file "COPYING" in the main directory of this archive
|
||||
* for more details.
|
||||
*/
|
||||
#include <linux/console.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/pm.h>
|
||||
#include <linux/pm_clock.h>
|
||||
#include <asm/io.h>
|
||||
#include <mach/pm-rmobile.h>
|
||||
|
||||
/* SYSC */
|
||||
#define SPDCR 0xe6180008
|
||||
#define SWUCR 0xe6180014
|
||||
#define PSTR 0xe6180080
|
||||
|
||||
#define PSTR_RETRIES 100
|
||||
#define PSTR_DELAY_US 10
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int rmobile_pd_power_down(struct generic_pm_domain *genpd)
|
||||
{
|
||||
struct rmobile_pm_domain *rmobile_pd = to_rmobile_pd(genpd);
|
||||
unsigned int mask = 1 << rmobile_pd->bit_shift;
|
||||
|
||||
if (rmobile_pd->suspend) {
|
||||
int ret = rmobile_pd->suspend();
|
||||
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (__raw_readl(PSTR) & mask) {
|
||||
unsigned int retry_count;
|
||||
__raw_writel(mask, SPDCR);
|
||||
|
||||
for (retry_count = PSTR_RETRIES; retry_count; retry_count--) {
|
||||
if (!(__raw_readl(SPDCR) & mask))
|
||||
break;
|
||||
cpu_relax();
|
||||
}
|
||||
}
|
||||
|
||||
if (!rmobile_pd->no_debug)
|
||||
pr_debug("%s: Power off, 0x%08x -> PSTR = 0x%08x\n",
|
||||
genpd->name, mask, __raw_readl(PSTR));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __rmobile_pd_power_up(struct rmobile_pm_domain *rmobile_pd,
|
||||
bool do_resume)
|
||||
{
|
||||
unsigned int mask = 1 << rmobile_pd->bit_shift;
|
||||
unsigned int retry_count;
|
||||
int ret = 0;
|
||||
|
||||
if (__raw_readl(PSTR) & mask)
|
||||
goto out;
|
||||
|
||||
__raw_writel(mask, SWUCR);
|
||||
|
||||
for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) {
|
||||
if (!(__raw_readl(SWUCR) & mask))
|
||||
break;
|
||||
if (retry_count > PSTR_RETRIES)
|
||||
udelay(PSTR_DELAY_US);
|
||||
else
|
||||
cpu_relax();
|
||||
}
|
||||
if (!retry_count)
|
||||
ret = -EIO;
|
||||
|
||||
if (!rmobile_pd->no_debug)
|
||||
pr_debug("%s: Power on, 0x%08x -> PSTR = 0x%08x\n",
|
||||
rmobile_pd->genpd.name, mask, __raw_readl(PSTR));
|
||||
|
||||
out:
|
||||
if (ret == 0 && rmobile_pd->resume && do_resume)
|
||||
rmobile_pd->resume();
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rmobile_pd_power_up(struct generic_pm_domain *genpd)
|
||||
{
|
||||
return __rmobile_pd_power_up(to_rmobile_pd(genpd), true);
|
||||
}
|
||||
|
||||
static bool rmobile_pd_active_wakeup(struct device *dev)
|
||||
{
|
||||
bool (*active_wakeup)(struct device *dev);
|
||||
|
||||
active_wakeup = dev_gpd_data(dev)->ops.active_wakeup;
|
||||
return active_wakeup ? active_wakeup(dev) : true;
|
||||
}
|
||||
|
||||
static int rmobile_pd_stop_dev(struct device *dev)
|
||||
{
|
||||
int (*stop)(struct device *dev);
|
||||
|
||||
stop = dev_gpd_data(dev)->ops.stop;
|
||||
if (stop) {
|
||||
int ret = stop(dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
return pm_clk_suspend(dev);
|
||||
}
|
||||
|
||||
static int rmobile_pd_start_dev(struct device *dev)
|
||||
{
|
||||
int (*start)(struct device *dev);
|
||||
int ret;
|
||||
|
||||
ret = pm_clk_resume(dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
start = dev_gpd_data(dev)->ops.start;
|
||||
if (start)
|
||||
ret = start(dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd)
|
||||
{
|
||||
struct generic_pm_domain *genpd = &rmobile_pd->genpd;
|
||||
struct dev_power_governor *gov = rmobile_pd->gov;
|
||||
|
||||
pm_genpd_init(genpd, gov ? : &simple_qos_governor, false);
|
||||
genpd->dev_ops.stop = rmobile_pd_stop_dev;
|
||||
genpd->dev_ops.start = rmobile_pd_start_dev;
|
||||
genpd->dev_ops.active_wakeup = rmobile_pd_active_wakeup;
|
||||
genpd->dev_irq_safe = true;
|
||||
genpd->power_off = rmobile_pd_power_down;
|
||||
genpd->power_on = rmobile_pd_power_up;
|
||||
__rmobile_pd_power_up(rmobile_pd, false);
|
||||
}
|
||||
|
||||
void rmobile_add_device_to_domain(struct rmobile_pm_domain *rmobile_pd,
|
||||
struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
|
||||
pm_genpd_add_device(&rmobile_pd->genpd, dev);
|
||||
if (pm_clk_no_clocks(dev))
|
||||
pm_clk_add(dev, NULL);
|
||||
}
|
||||
|
||||
void rmobile_pm_add_subdomain(struct rmobile_pm_domain *rmobile_pd,
|
||||
struct rmobile_pm_domain *rmobile_sd)
|
||||
{
|
||||
pm_genpd_add_subdomain(&rmobile_pd->genpd, &rmobile_sd->genpd);
|
||||
}
|
||||
#endif /* CONFIG_PM */
|
||||
Загрузка…
Ссылка в новой задаче