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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2015-05-11 15:58:02 +0300
committerLee Jones <lee.jones@linaro.org>2015-06-22 14:25:09 +0300
commit2229875dc00f38b95d04fecfc67858ba2221a563 (patch)
tree8f6ecf7eb7e1c32f7296d21bd5930ed8bb60882e /drivers/mfd/arizona-core.c
parent5f056bf04201dc533f5d10acf028435ede0a1442 (diff)
downloadlinux-2229875dc00f38b95d04fecfc67858ba2221a563.tar.xz
mfd: arizona: Factor out hard reset into helper functions
This patch adds functions for enabling and disabling the physical reset line. This will be helpful in future refactoring. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/arizona-core.c')
-rw-r--r--drivers/mfd/arizona-core.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 915cc28585d2..f30d92538584 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -250,6 +250,20 @@ static int arizona_wait_for_boot(struct arizona *arizona)
return ret;
}
+static inline void arizona_enable_reset(struct arizona *arizona)
+{
+ if (arizona->pdata.reset)
+ gpio_set_value_cansleep(arizona->pdata.reset, 0);
+}
+
+static void arizona_disable_reset(struct arizona *arizona)
+{
+ if (arizona->pdata.reset) {
+ gpio_set_value_cansleep(arizona->pdata.reset, 1);
+ msleep(1);
+ }
+}
+
static int arizona_apply_hardware_patch(struct arizona* arizona)
{
unsigned int fll, sysclk;
@@ -751,10 +765,7 @@ int arizona_dev_init(struct arizona *arizona)
goto err_enable;
}
- if (arizona->pdata.reset) {
- gpio_set_value_cansleep(arizona->pdata.reset, 1);
- msleep(1);
- }
+ arizona_disable_reset(arizona);
regcache_cache_only(arizona->regmap, false);
@@ -1046,8 +1057,7 @@ int arizona_dev_init(struct arizona *arizona)
err_irq:
arizona_irq_exit(arizona);
err_reset:
- if (arizona->pdata.reset)
- gpio_set_value_cansleep(arizona->pdata.reset, 0);
+ arizona_enable_reset(arizona);
regulator_disable(arizona->dcvdd);
err_enable:
regulator_bulk_disable(arizona->num_core_supplies,
@@ -1072,8 +1082,7 @@ int arizona_dev_exit(struct arizona *arizona)
arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
arizona_irq_exit(arizona);
- if (arizona->pdata.reset)
- gpio_set_value_cansleep(arizona->pdata.reset, 0);
+ arizona_enable_reset(arizona);
regulator_bulk_disable(arizona->num_core_supplies,
arizona->core_supplies);