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| author | Kevin Hilman <khilman@deeprootsystems.com> | 2009-01-27 11:09:24 -0800 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-05-12 09:39:16 -0700 |
| commit | 43ffcd9a042858a9e9f9fe014bb073e55db34c67 (patch) | |
| tree | e6e2ecc3d9af3c398e97ecd8c3007d5db1228a79 /arch/arm/plat-omap/gpio.c | |
| parent | 699117a69f53efbdf8fddbd6d991575c0a22fd74 (diff) | |
| download | linux-3.10-43ffcd9a042858a9e9f9fe014bb073e55db34c67.tar.gz linux-3.10-43ffcd9a042858a9e9f9fe014bb073e55db34c67.tar.bz2 linux-3.10-43ffcd9a042858a9e9f9fe014bb073e55db34c67.zip | |
OMAP2/3: GPIO: generalize prepare for idle
Currently, the GPIO 'prepare' hook is only called when going to
off-mode, while the function is called 'prepare_for_retention.' This
patch renames the function to 'prepare_for_idle' and calls it for any
powersate != PWRDM_POWER_ON passing in the powerstate.
The hook itself is then responsible for doing various preparation
based on the powerstate.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/plat-omap/gpio.c')
| -rw-r--r-- | arch/arm/plat-omap/gpio.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 2f185ffaca4..1c81340ce65 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -27,6 +27,7 @@ #include <mach/irqs.h> #include <mach/gpio.h> #include <asm/mach/irq.h> +#include <plat/powerdomain.h> /* * OMAP1510 GPIO registers @@ -2041,19 +2042,24 @@ static struct sys_device omap_gpio_device = { static int workaround_enabled; -void omap2_gpio_prepare_for_retention(void) +void omap2_gpio_prepare_for_idle(int power_state) { int i, c = 0; int min = 0; if (cpu_is_omap34xx()) min = 1; - /* Remove triggering for all non-wakeup GPIOs. Otherwise spurious - * IRQs will be generated. See OMAP2420 Errata item 1.101. */ + for (i = min; i < gpio_bank_count; i++) { struct gpio_bank *bank = &gpio_bank[i]; u32 l1, l2; + if (power_state > PWRDM_POWER_OFF) + continue; + + /* If going to OFF, remove triggering for all + * non-wakeup GPIOs. Otherwise spurious IRQs will be + * generated. See OMAP2420 Errata item 1.101. */ if (!(bank->enabled_non_wakeup_gpios)) continue; @@ -2101,19 +2107,20 @@ void omap2_gpio_prepare_for_retention(void) workaround_enabled = 1; } -void omap2_gpio_resume_after_retention(void) +void omap2_gpio_resume_after_idle(void) { int i; int min = 0; - if (!workaround_enabled) - return; if (cpu_is_omap34xx()) min = 1; for (i = min; i < gpio_bank_count; i++) { struct gpio_bank *bank = &gpio_bank[i]; u32 l, gen, gen0, gen1; + if (!workaround_enabled) + continue; + if (!(bank->enabled_non_wakeup_gpios)) continue; |