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Message-Id: <1431349090-24173-3-git-send-email-ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 11 May 2015 13:58:02 +0100
From: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To: lee.jones@...aro.org
Cc: broonie@...nel.org, lgirdwood@...il.com, sameo@...ux.intel.com,
patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org
Subject: [RESEND PATCH v3 02/10] 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@...nsource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@...aro.org>
---
drivers/mfd/arizona-core.c | 25 +++++++++++++++++--------
1 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 915cc28..f30d925 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);
--
1.7.2.5
--
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