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| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2015-09-30 01:58:40 +0200 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-02-17 17:53:02 +0100 |
| commit | fbc7edca5a7dd417013ef4900763ef931f325b3d (patch) | |
| tree | 39af724e49947af4476cc7277a2aa8bb3a8d824a /arch/arm/mach-at91/pm.c | |
| parent | 5737b73e193ba9d09286b621eecd9db3f3c6abd2 (diff) | |
| download | linux-fbc7edca5a7dd417013ef4900763ef931f325b3d.tar.bz2 | |
ARM: at91: pm: move idle functions to pm.c
Avoid using code from clk/at91 for PM.
This also has the bonus effect of setting arm_pm_idle for sama5 platforms.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Diffstat (limited to 'arch/arm/mach-at91/pm.c')
| -rw-r--r-- | arch/arm/mach-at91/pm.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 8923efbfa7fa..f06270198bf1 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -31,6 +31,7 @@ #include <asm/mach/irq.h> #include <asm/fncpy.h> #include <asm/cacheflush.h> +#include <asm/system_misc.h> #include "generic.h" #include "pm.h" @@ -354,6 +355,21 @@ static __init void at91_dt_ramc(void) at91_pm_set_standby(standby); } +void at91rm9200_idle(void) +{ + /* + * Disable the processor clock. The processor will be automatically + * re-enabled by an interrupt or by a reset. + */ + writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR); +} + +void at91sam9_idle(void) +{ + writel(AT91_PMC_PCK, pmc + AT91_PMC_SCDR); + cpu_do_idle(); +} + static void __init at91_pm_sram_init(void) { struct gen_pool *sram_pool; @@ -411,7 +427,7 @@ static const struct of_device_id atmel_pmc_ids[] __initconst = { { /* sentinel */ }, }; -static void __init at91_pm_init(void) +static void __init at91_pm_init(void (*pm_idle)(void)) { struct device_node *pmc_np; @@ -425,6 +441,9 @@ static void __init at91_pm_init(void) return; } + if (pm_idle) + arm_pm_idle = pm_idle; + at91_pm_sram_init(); if (at91_suspend_sram_fn) @@ -445,7 +464,7 @@ void __init at91rm9200_pm_init(void) at91_pm_data.uhp_udp_mask = AT91RM9200_PMC_UHP | AT91RM9200_PMC_UDP; at91_pm_data.memctrl = AT91_MEMCTRL_MC; - at91_pm_init(); + at91_pm_init(at91rm9200_idle); } void __init at91sam9260_pm_init(void) @@ -453,7 +472,7 @@ void __init at91sam9260_pm_init(void) at91_dt_ramc(); at91_pm_data.memctrl = AT91_MEMCTRL_SDRAMC; at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP; - at91_pm_init(); + at91_pm_init(at91sam9_idle); } void __init at91sam9g45_pm_init(void) @@ -461,7 +480,7 @@ void __init at91sam9g45_pm_init(void) at91_dt_ramc(); at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP; at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR; - at91_pm_init(); + at91_pm_init(at91sam9_idle); } void __init at91sam9x5_pm_init(void) @@ -469,5 +488,13 @@ void __init at91sam9x5_pm_init(void) at91_dt_ramc(); at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP; at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR; - at91_pm_init(); + at91_pm_init(at91sam9_idle); +} + +void __init sama5_pm_init(void) +{ + at91_dt_ramc(); + at91_pm_data.uhp_udp_mask = AT91SAM926x_PMC_UHP | AT91SAM926x_PMC_UDP; + at91_pm_data.memctrl = AT91_MEMCTRL_DDRSDR; + at91_pm_init(NULL); } |