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| author | Richard Fitzgerald <rf@opensource.wolfsonmicro.com> | 2015-10-02 15:29:14 +0300 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2015-10-30 20:20:29 +0300 |
| commit | b61c1ec058dabdcbddad7436bb4c009a8fa65b02 (patch) | |
| tree | b5e851f1a183bc840fc18cec18321d967d0ad81b /drivers/mfd/arizona-i2c.c | |
| parent | ae05ea36d1c9bdc76a4539277d96f5bdf3d39f02 (diff) | |
| download | linux-b61c1ec058dabdcbddad7436bb4c009a8fa65b02.tar.xz | |
mfd: arizona: Remove use of codec build config #ifdefs
Remove the use of #ifdefs around each case statement of the chip ID
and type validation switches.
We must ensure that the contained code still compiles to nothing if
support for that codec was not built into the kernel, to prevent
creation of link references to missing functions. So the ifdefs are
replaced with a use of the IS_ENABLED() macro.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/arizona-i2c.c')
| -rw-r--r-- | drivers/mfd/arizona-i2c.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c index cea1b409fa27..914bdce58bdf 100644 --- a/drivers/mfd/arizona-i2c.c +++ b/drivers/mfd/arizona-i2c.c @@ -27,7 +27,7 @@ static int arizona_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct arizona *arizona; - const struct regmap_config *regmap_config; + const struct regmap_config *regmap_config = NULL; unsigned long type; int ret; @@ -37,34 +37,36 @@ static int arizona_i2c_probe(struct i2c_client *i2c, type = id->driver_data; switch (type) { -#ifdef CONFIG_MFD_WM5102 case WM5102: - regmap_config = &wm5102_i2c_regmap; + if (IS_ENABLED(CONFIG_MFD_WM5102)) + regmap_config = &wm5102_i2c_regmap; break; -#endif -#ifdef CONFIG_MFD_WM5110 case WM5110: case WM8280: - regmap_config = &wm5110_i2c_regmap; + if (IS_ENABLED(CONFIG_MFD_WM5110)) + regmap_config = &wm5110_i2c_regmap; break; -#endif -#ifdef CONFIG_MFD_WM8997 case WM8997: - regmap_config = &wm8997_i2c_regmap; + if (IS_ENABLED(CONFIG_MFD_WM8997)) + regmap_config = &wm8997_i2c_regmap; break; -#endif -#ifdef CONFIG_MFD_WM8998 case WM8998: case WM1814: - regmap_config = &wm8998_i2c_regmap; + if (IS_ENABLED(CONFIG_MFD_WM8998)) + regmap_config = &wm8998_i2c_regmap; break; -#endif default: dev_err(&i2c->dev, "Unknown device type %ld\n", id->driver_data); return -EINVAL; } + if (!regmap_config) { + dev_err(&i2c->dev, + "No kernel support for device type %ld\n", type); + return -EINVAL; + } + arizona = devm_kzalloc(&i2c->dev, sizeof(*arizona), GFP_KERNEL); if (arizona == NULL) return -ENOMEM; |