linux-kernel - Re: [PATCH] ASoC: da7219: Allow pdata to specify a VDDIO

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Message-ID: <201807211100.l98KU1Qw%fengguang.wu@intel.com>
Date:   Sat, 21 Jul 2018 11:18:25 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Daniel Kurtz <djkurtz@...omium.org>
Cc:     kbuild-all@...org, Dylan Reid <dgreid@...omium.org>,
        Jimmy Cheng-Yi Chiang <cychiang@...gle.com>,
        Akshu Agrawal <akshu.agrawal@....com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        Support Opensource <support.opensource@...semi.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        "moderated list:SOUND" <alsa-devel@...a-project.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: da7219: Allow pdata to specify a VDDIO

Hi Daniel,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on asoc/for-next]
[also build test WARNING 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: i386-randconfig-sb0-07210849 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   sound/soc//codecs/da7219.c: In function 'da7219_fw_to_pdata':
>> sound/soc//codecs/da7219.c:1637:53: warning: passing argument 3 of 'device_property_read_string' from incompatible pointer type
     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 *'
    int device_property_read_string(struct device *dev, const char *propname,
        ^

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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