From 2229875dc00f38b95d04fecfc67858ba2221a563 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 11 May 2015 13:58:02 +0100
Subject: [PATCH] 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>
---
drivers/mfd/arizona-core.c | 25 +++++++++++++++++--------
1 file 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);