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Merge branch 'pm-domains' into pm-for-linus

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* pm-domains:
  ARM: mach-shmobile: sh7372 A4R support (v4)
  ARM: mach-shmobile: sh7372 A3SP support (v4)
  PM / Sleep: Mark devices involved in wakeup signaling during suspend
This commit is contained in:
Rafael J. Wysocki 2011-10-22 00:21:52 +02:00
commit d033e07856
9 changed files with 159 additions and 9 deletions
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5
arch/arm/mach-shmobile/board-ap4evb.c
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@ -1409,6 +1409,11 @@ static void __init ap4evb_init(void)
sh7372_add_device_to_domain(&sh7372_a4lc, &lcdc_device);
sh7372_add_device_to_domain(&sh7372_a4mp, &fsi_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &sh_mmcif_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi0_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi1_device);
sh7372_add_device_to_domain(&sh7372_a4r, &ceu_device);
hdmi_init_pm_clock();
fsi_init_pm_clock();
sh7372_pm_init();

9
arch/arm/mach-shmobile/board-mackerel.c
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@ -1588,6 +1588,15 @@ static void __init mackerel_init(void)
sh7372_add_device_to_domain(&sh7372_a4lc, &lcdc_device);
sh7372_add_device_to_domain(&sh7372_a4lc, &hdmi_lcdc_device);
sh7372_add_device_to_domain(&sh7372_a4mp, &fsi_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &usbhs0_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &usbhs1_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &sh_mmcif_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi0_device);
#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi1_device);
#endif
sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi2_device);
sh7372_add_device_to_domain(&sh7372_a4r, &ceu_device);
hdmi_init_pm_clock();
sh7372_pm_init();

10
arch/arm/mach-shmobile/include/mach/sh7372.h
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@ -479,7 +479,12 @@ struct platform_device;
struct sh7372_pm_domain {
struct generic_pm_domain genpd;
struct dev_power_governor *gov;
void (*suspend)(void);
void (*resume)(void);
unsigned int bit_shift;
bool no_debug;
bool stay_on;
};
static inline struct sh7372_pm_domain *to_sh7372_pd(struct generic_pm_domain *d)
@ -491,8 +496,10 @@ static inline struct sh7372_pm_domain *to_sh7372_pd(struct generic_pm_domain *d)
extern struct sh7372_pm_domain sh7372_a4lc;
extern struct sh7372_pm_domain sh7372_a4mp;
extern struct sh7372_pm_domain sh7372_d4;
extern struct sh7372_pm_domain sh7372_a4r;
extern struct sh7372_pm_domain sh7372_a3rv;
extern struct sh7372_pm_domain sh7372_a3ri;
extern struct sh7372_pm_domain sh7372_a3sp;
extern struct sh7372_pm_domain sh7372_a3sg;
extern void sh7372_init_pm_domain(struct sh7372_pm_domain *sh7372_pd);
@ -506,4 +513,7 @@ extern void sh7372_pm_add_subdomain(struct sh7372_pm_domain *sh7372_pd,
#define sh7372_pm_add_subdomain(pd, sd) do { } while(0)
#endif /* CONFIG_PM */
extern void sh7372_intcs_suspend(void);
extern void sh7372_intcs_resume(void);
#endif /* __ASM_SH7372_H__ */

52
arch/arm/mach-shmobile/intc-sh7372.c
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@ -606,9 +606,16 @@ static void intcs_demux(unsigned int irq, struct irq_desc *desc)
generic_handle_irq(intcs_evt2irq(evtcodeas));
}
static void __iomem *intcs_ffd2;
static void __iomem *intcs_ffd5;
void __init sh7372_init_irq(void)
{
void __iomem *intevtsa = ioremap_nocache(0xffd20100, PAGE_SIZE);
void __iomem *intevtsa;
intcs_ffd2 = ioremap_nocache(0xffd20000, PAGE_SIZE);
intevtsa = intcs_ffd2 + 0x100;
intcs_ffd5 = ioremap_nocache(0xffd50000, PAGE_SIZE);
register_intc_controller(&intca_desc);
register_intc_controller(&intcs_desc);
@ -617,3 +624,46 @@ void __init sh7372_init_irq(void)
irq_set_handler_data(evt2irq(0xf80), (void *)intevtsa);
irq_set_chained_handler(evt2irq(0xf80), intcs_demux);
}
static unsigned short ffd2[0x200];
static unsigned short ffd5[0x100];
void sh7372_intcs_suspend(void)
{
int k;
for (k = 0x00; k <= 0x30; k += 4)
ffd2[k] = __raw_readw(intcs_ffd2 + k);
for (k = 0x80; k <= 0xb0; k += 4)
ffd2[k] = __raw_readb(intcs_ffd2 + k);
for (k = 0x180; k <= 0x188; k += 4)
ffd2[k] = __raw_readb(intcs_ffd2 + k);
for (k = 0x00; k <= 0x3c; k += 4)
ffd5[k] = __raw_readw(intcs_ffd5 + k);
for (k = 0x80; k <= 0x9c; k += 4)
ffd5[k] = __raw_readb(intcs_ffd5 + k);
}
void sh7372_intcs_resume(void)
{
int k;
for (k = 0x00; k <= 0x30; k += 4)
__raw_writew(ffd2[k], intcs_ffd2 + k);
for (k = 0x80; k <= 0xb0; k += 4)
__raw_writeb(ffd2[k], intcs_ffd2 + k);
for (k = 0x180; k <= 0x188; k += 4)
__raw_writeb(ffd2[k], intcs_ffd2 + k);
for (k = 0x00; k <= 0x3c; k += 4)
__raw_writew(ffd5[k], intcs_ffd5 + k);
for (k = 0x80; k <= 0x9c; k += 4)
__raw_writeb(ffd5[k], intcs_ffd5 + k);
}

57
arch/arm/mach-shmobile/pm-sh7372.c
View File

@ -44,6 +44,7 @@
#define SPDCR 0xe6180008
#define SWUCR 0xe6180014
#define SBAR 0xe6180020
#define WUPRMSK 0xe6180028
#define WUPSMSK 0xe618002c
#define WUPSMSK2 0xe6180048
#define PSTR 0xe6180080
@ -80,6 +81,12 @@ static int pd_power_down(struct generic_pm_domain *genpd)
struct sh7372_pm_domain *sh7372_pd = to_sh7372_pd(genpd);
unsigned int mask = 1 << sh7372_pd->bit_shift;
if (sh7372_pd->suspend)
sh7372_pd->suspend();
if (sh7372_pd->stay_on)
return 0;
if (__raw_readl(PSTR) & mask) {
unsigned int retry_count;
@ -92,8 +99,9 @@ static int pd_power_down(struct generic_pm_domain *genpd)
}
}
pr_debug("sh7372 power domain down 0x%08x -> PSTR = 0x%08x\n",
mask, __raw_readl(PSTR));
if (!sh7372_pd->no_debug)
pr_debug("sh7372 power domain down 0x%08x -> PSTR = 0x%08x\n",
mask, __raw_readl(PSTR));
return 0;
}
@ -105,6 +113,9 @@ static int pd_power_up(struct generic_pm_domain *genpd)
unsigned int retry_count;
int ret = 0;
if (sh7372_pd->stay_on)
goto out;
if (__raw_readl(PSTR) & mask)
goto out;
@ -121,23 +132,42 @@ static int pd_power_up(struct generic_pm_domain *genpd)
if (__raw_readl(SWUCR) & mask)
ret = -EIO;
if (!sh7372_pd->no_debug)
pr_debug("sh7372 power domain up 0x%08x -> PSTR = 0x%08x\n",
mask, __raw_readl(PSTR));
out:
pr_debug("sh7372 power domain up 0x%08x -> PSTR = 0x%08x\n",
mask, __raw_readl(PSTR));
if (ret == 0 && sh7372_pd->resume)
sh7372_pd->resume();
return ret;
}
static void sh7372_a4r_suspend(void)
{
sh7372_intcs_suspend();
__raw_writel(0x300fffff, WUPRMSK); /* avoid wakeup */
}
static bool pd_active_wakeup(struct device *dev)
{
return true;
}
static bool sh7372_power_down_forbidden(struct dev_pm_domain *domain)
{
return false;
}
struct dev_power_governor sh7372_always_on_gov = {
.power_down_ok = sh7372_power_down_forbidden,
};
void sh7372_init_pm_domain(struct sh7372_pm_domain *sh7372_pd)
{
struct generic_pm_domain *genpd = &sh7372_pd->genpd;
pm_genpd_init(genpd, NULL, false);
pm_genpd_init(genpd, sh7372_pd->gov, false);
genpd->stop_device = pm_clk_suspend;
genpd->start_device = pm_clk_resume;
genpd->dev_irq_safe = true;
@ -175,6 +205,14 @@ struct sh7372_pm_domain sh7372_d4 = {
.bit_shift = 3,
};
struct sh7372_pm_domain sh7372_a4r = {
.bit_shift = 5,
.gov = &sh7372_always_on_gov,
.suspend = sh7372_a4r_suspend,
.resume = sh7372_intcs_resume,
.stay_on = true,
};
struct sh7372_pm_domain sh7372_a3rv = {
.bit_shift = 6,
};
@ -183,6 +221,12 @@ struct sh7372_pm_domain sh7372_a3ri = {
.bit_shift = 8,
};
struct sh7372_pm_domain sh7372_a3sp = {
.bit_shift = 11,
.gov = &sh7372_always_on_gov,
.no_debug = true,
};
struct sh7372_pm_domain sh7372_a3sg = {
.bit_shift = 13,
};
@ -422,6 +466,9 @@ void __init sh7372_pm_init(void)
__raw_writel(0x0000a501, DBGREG9);
__raw_writel(0x00000000, DBGREG1);
/* do not convert A3SM, A3SP, A3SG, A4R power down into A4S */
__raw_writel(0, PDNSEL);
sh7372_suspend_init();
sh7372_cpuidle_init();
}

22
arch/arm/mach-shmobile/setup-sh7372.c
View File

@ -991,11 +991,14 @@ void __init sh7372_add_standard_devices(void)
sh7372_init_pm_domain(&sh7372_a4lc);
sh7372_init_pm_domain(&sh7372_a4mp);
sh7372_init_pm_domain(&sh7372_d4);
sh7372_init_pm_domain(&sh7372_a4r);
sh7372_init_pm_domain(&sh7372_a3rv);
sh7372_init_pm_domain(&sh7372_a3ri);
sh7372_init_pm_domain(&sh7372_a3sg);
sh7372_init_pm_domain(&sh7372_a3sp);
sh7372_pm_add_subdomain(&sh7372_a4lc, &sh7372_a3rv);
sh7372_pm_add_subdomain(&sh7372_a4r, &sh7372_a4lc);
platform_add_devices(sh7372_early_devices,
ARRAY_SIZE(sh7372_early_devices));
@ -1006,6 +1009,25 @@ void __init sh7372_add_standard_devices(void)
sh7372_add_device_to_domain(&sh7372_a3rv, &vpu_device);
sh7372_add_device_to_domain(&sh7372_a4mp, &spu0_device);
sh7372_add_device_to_domain(&sh7372_a4mp, &spu1_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &scif0_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &scif1_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &scif2_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &scif3_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &scif4_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &scif5_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &scif6_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &iic1_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &dma0_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &dma1_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &dma2_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &usb_dma0_device);
sh7372_add_device_to_domain(&sh7372_a3sp, &usb_dma1_device);
sh7372_add_device_to_domain(&sh7372_a4r, &iic0_device);
sh7372_add_device_to_domain(&sh7372_a4r, &veu0_device);
sh7372_add_device_to_domain(&sh7372_a4r, &veu1_device);
sh7372_add_device_to_domain(&sh7372_a4r, &veu2_device);
sh7372_add_device_to_domain(&sh7372_a4r, &veu3_device);
sh7372_add_device_to_domain(&sh7372_a4r, &jpu_device);
}
void __init sh7372_add_early_devices(void)

4
drivers/base/power/domain.c
View File

@ -714,7 +714,7 @@ static int pm_genpd_suspend_noirq(struct device *dev)
if (ret)
return ret;
if (device_may_wakeup(dev)
if (dev->power.wakeup_path
&& genpd->active_wakeup && genpd->active_wakeup(dev))
return 0;
@ -938,7 +938,7 @@ static int pm_genpd_dev_poweroff_noirq(struct device *dev)
if (ret)
return ret;
if (device_may_wakeup(dev)
if (dev->power.wakeup_path
&& genpd->active_wakeup && genpd->active_wakeup(dev))
return 0;

8
drivers/base/power/main.c
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@ -917,7 +917,11 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
}
End:
dev->power.is_suspended = !error;
if (!error) {
dev->power.is_suspended = true;
if (dev->power.wakeup_path && dev->parent)
dev->parent->power.wakeup_path = true;
}
device_unlock(dev);
complete_all(&dev->power.completion);
@ -1020,6 +1024,8 @@ static int device_prepare(struct device *dev, pm_message_t state)
device_lock(dev);
dev->power.wakeup_path = device_may_wakeup(dev);
if (dev->pm_domain) {
pm_dev_dbg(dev, state, "preparing power domain ");
if (dev->pm_domain->ops.prepare)

1
include/linux/pm.h
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@ -452,6 +452,7 @@ struct dev_pm_info {
struct list_head entry;
struct completion completion;
struct wakeup_source *wakeup;
bool wakeup_path:1;
#else
unsigned int should_wakeup:1;
#endif