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SubjectRe: [PATCH] ASoC: da7219: Allow pdata to specify a VDDIO
Hi Daniel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on asoc/for-next]
[also build test ERROR on v4.18-rc5 next-20180720]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Daniel-Kurtz/ASoC-da7219-Allow-pdata-to-specify-a-VDDIO/20180721-082411
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: x86_64-randconfig-x011-201828 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

sound/soc/codecs/da7219.c: In function 'da7219_fw_to_pdata':
>> sound/soc/codecs/da7219.c:1637:53: error: passing argument 3 of 'device_property_read_string' from incompatible pointer type [-Werror=incompatible-pointer-types]
if (!device_property_read_string(dev, "dlg,vddio", &of_val32))
^
In file included from include/linux/acpi.h:28:0,
from sound/soc/codecs/da7219.c:14:
include/linux/property.h:49:5: note: expected 'const char **' but argument is of type 'u32 * {aka unsigned int *}'
int device_property_read_string(struct device *dev, const char *propname,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/device_property_read_string +1637 sound/soc/codecs/da7219.c

1607
1608 static struct da7219_pdata *da7219_fw_to_pdata(struct snd_soc_component *component)
1609 {
1610 struct device *dev = component->dev;
1611 struct da7219_pdata *pdata;
1612 const char *of_str;
1613 u32 of_val32;
1614
1615 pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
1616 if (!pdata)
1617 return NULL;
1618
1619 pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source");
1620
1621 pdata->dai_clks_name = "da7219-dai-clks";
1622 if (device_property_read_string(dev, "clock-output-names",
1623 &pdata->dai_clks_name))
1624 dev_warn(dev, "Using default clk name: %s\n",
1625 pdata->dai_clks_name);
1626
1627 if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0)
1628 pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32);
1629 else
1630 pdata->micbias_lvl = DA7219_MICBIAS_2_2V;
1631
1632 if (!device_property_read_string(dev, "dlg,mic-amp-in-sel", &of_str))
1633 pdata->mic_amp_in_sel = da7219_fw_mic_amp_in_sel(dev, of_str);
1634 else
1635 pdata->mic_amp_in_sel = DA7219_MIC_AMP_IN_SEL_DIFF;
1636
> 1637 if (!device_property_read_string(dev, "dlg,vddio", &of_val32))
1638 pdata->vddio = of_val32;
1639
1640 return pdata;
1641 }
1642

---
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