sound/soc//codecs/pcm1789.c:247:19: error: implicit declaration of function 'devm_gpiod_get_optional'

From: kbuild test robot
Date: Mon May 21 2018 - 20:04:11 EST


Hi Mylène,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c85061e6e0ee07e131b929e6a17bb2e20d19b321
commit: 4ae340d1be36378505498606e6c640dd0507ad61 ASoC: codecs: Add support for PCM1789
date: 9 weeks ago
config: x86_64-randconfig-s2-05220828 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
git checkout 4ae340d1be36378505498606e6c640dd0507ad61
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

sound/soc//codecs/pcm1789.c: In function 'pcm1789_common_init':
>> sound/soc//codecs/pcm1789.c:247:19: error: implicit declaration of function 'devm_gpiod_get_optional' [-Werror=implicit-function-declaration]
pcm1789->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
^~~~~~~~~~~~~~~~~~~~~~~
>> sound/soc//codecs/pcm1789.c:247:57: error: 'GPIOD_OUT_HIGH' undeclared (first use in this function)
pcm1789->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
^~~~~~~~~~~~~~
sound/soc//codecs/pcm1789.c:247:57: note: each undeclared identifier is reported only once for each function it appears in
>> sound/soc//codecs/pcm1789.c:251:2: error: implicit declaration of function 'gpiod_set_value_cansleep' [-Werror=implicit-function-declaration]
gpiod_set_value_cansleep(pcm1789->reset, 0);
^~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/devm_gpiod_get_optional +247 sound/soc//codecs/pcm1789.c

233
234 int pcm1789_common_init(struct device *dev, struct regmap *regmap)
235 {
236 struct pcm1789_private *pcm1789;
237
238 pcm1789 = devm_kzalloc(dev, sizeof(struct pcm1789_private),
239 GFP_KERNEL);
240 if (!pcm1789)
241 return -ENOMEM;
242
243 pcm1789->regmap = regmap;
244 pcm1789->dev = dev;
245 dev_set_drvdata(dev, pcm1789);
246
> 247 pcm1789->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
248 if (IS_ERR(pcm1789->reset))
249 return PTR_ERR(pcm1789->reset);
250
> 251 gpiod_set_value_cansleep(pcm1789->reset, 0);
252 msleep(300);
253
254 INIT_WORK(&pcm1789->work, pcm1789_work_queue);
255
256 return devm_snd_soc_register_component(dev, &soc_component_dev_pcm1789,
257 &pcm1789_dai, 1);
258 }
259 EXPORT_SYMBOL_GPL(pcm1789_common_init);
260

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