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i2c: designware-baytrail: fix sparse warnings 

There is no need to export functions that are used as the callbacks in the
struct dw_i2c_dev. Otherwise we get the following warnings:

drivers/i2c/busses/i2c-designware-baytrail.c:63:5: warning: symbol 'baytrail_i2c_acquire' was not declared. Should it be static?
drivers/i2c/busses/i2c-designware-baytrail.c:114:6: warning: symbol 'baytrail_i2c_release' was not declared. Should it be static?

While here, do few indentation fixes, remove i2c_dw_eval_lock_support() from
functions exported to the modules and redundant assignment of local sem
variable.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Andy Shevchenko 2015-02-10 19:06:08 +02:00 committed by Wolfram Sang
parent 259aada436
commit c8e043e6f7
1 changed files with 5 additions and 7 deletions
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12
drivers/i2c/busses/i2c-designware-baytrail.c
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@ -17,7 +17,9 @@
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <asm/iosf_mbi.h>
#include "i2c-designware-core.h"
#define SEMAPHORE_TIMEOUT 100
@ -60,9 +62,9 @@ static void reset_semaphore(struct device *dev)
dev_err(dev, "iosf failed to reset punit semaphore during write\n");
}
int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
{
u32 sem = 0;
u32 sem;
int ret;
unsigned long start, end;
@ -109,9 +111,8 @@ int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
return -ETIMEDOUT;
}
EXPORT_SYMBOL(baytrail_i2c_acquire);
void baytrail_i2c_release(struct dw_i2c_dev *dev)
static void baytrail_i2c_release(struct dw_i2c_dev *dev)
{
if (!dev || !dev->dev)
return;
@ -123,7 +124,6 @@ void baytrail_i2c_release(struct dw_i2c_dev *dev)
dev_dbg(dev->dev, "punit semaphore held for %ums\n",
jiffies_to_msecs(jiffies - acquired));
}
EXPORT_SYMBOL(baytrail_i2c_release);
int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
{
@ -139,7 +139,6 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
return 0;
status = acpi_evaluate_integer(handle, "_SEM", NULL, &shared_host);
if (ACPI_FAILURE(status))
return 0;
@ -155,7 +154,6 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev)
return 0;
}
EXPORT_SYMBOL(i2c_dw_eval_lock_support);
MODULE_AUTHOR("David E. Box <david.e.box@linux.intel.com>");
MODULE_DESCRIPTION("Baytrail I2C Semaphore driver");