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i2c: mv64xxx: Fix some build warnings

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Some functions and variables are only used if the configuration selects
HAVE_CLK. Protect them with a corresponding #ifdef CONFIG_HAVE_CLK block
to avoid compiler warnings.

Signed-off-by: Thierry Reding <treding@nvidia.com>
[wsa: added marker to #endif]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Thierry Reding 2013-09-18 14:50:52 +02:00 committed by Wolfram Sang
parent 153369139a
commit c1a9946780
1 changed files with 7 additions and 5 deletions
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12
drivers/i2c/busses/i2c-mv64xxx.c
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@ -697,6 +697,7 @@ static const struct of_device_id mv64xxx_i2c_of_match_table[] = {
MODULE_DEVICE_TABLE(of, mv64xxx_i2c_of_match_table); MODULE_DEVICE_TABLE(of, mv64xxx_i2c_of_match_table);
#ifdef CONFIG_OF #ifdef CONFIG_OF
#ifdef CONFIG_HAVE_CLK
static int static int
mv64xxx_calc_freq(const int tclk, const int n, const int m) mv64xxx_calc_freq(const int tclk, const int n, const int m)
{ {
@ -726,16 +727,12 @@ mv64xxx_find_baud_factors(const u32 req_freq, const u32 tclk, u32 *best_n,
return false; return false;
return true; return true;
} }
#endif /* CONFIG_HAVE_CLK */
static int static int
mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data, mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
struct device *dev) struct device *dev)
{ {
const struct of_device_id *device;
struct device_node *np = dev->of_node;
u32 bus_freq, tclk;
int rc = 0;
/* CLK is mandatory when using DT to describe the i2c bus. We /* CLK is mandatory when using DT to describe the i2c bus. We
* need to know tclk in order to calculate bus clock * need to know tclk in order to calculate bus clock
* factors. * factors.
@ -744,6 +741,11 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
/* Have OF but no CLK */ /* Have OF but no CLK */
return -ENODEV; return -ENODEV;
#else #else
const struct of_device_id *device;
struct device_node *np = dev->of_node;
u32 bus_freq, tclk;
int rc = 0;
if (IS_ERR(drv_data->clk)) { if (IS_ERR(drv_data->clk)) {
rc = -ENODEV; rc = -ENODEV;
goto out; goto out;