Audiomix block control can be a reset controller for
Enhanced Audio Return Channel (EARC), which is one of
modules in this audiomix subsystem.

The reset controller is supported by the auxiliary device
framework.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
 drivers/clk/imx/Kconfig               |  1 +
 drivers/clk/imx/clk-imx8mp-audiomix.c | 61 +++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)

diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
index 6da0fba68225..9edfb030bea9 100644
--- a/drivers/clk/imx/Kconfig
+++ b/drivers/clk/imx/Kconfig
@@ -81,6 +81,7 @@ config CLK_IMX8MP
 	tristate "IMX8MP CCM Clock Driver"
 	depends on ARCH_MXC || COMPILE_TEST
 	select MXC_CLK
+	select AUXILIARY_BUS
 	help
 	    Build the driver for i.MX8MP CCM Clock Driver
 
diff --git a/drivers/clk/imx/clk-imx8mp-audiomix.c b/drivers/clk/imx/clk-imx8mp-audiomix.c
index b381d6f784c8..d2eaabe431cd 100644
--- a/drivers/clk/imx/clk-imx8mp-audiomix.c
+++ b/drivers/clk/imx/clk-imx8mp-audiomix.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2022 Marek Vasut <marex@denx.de>
  */
 
+#include <linux/auxiliary_bus.h>
 #include <linux/clk-provider.h>
 #include <linux/device.h>
 #include <linux/io.h>
@@ -217,6 +218,62 @@ struct clk_imx8mp_audiomix_priv {
 	struct clk_hw_onecell_data clk_data;
 };
 
+#if IS_ENABLED(CONFIG_RESET_CONTROLLER)
+
+static void clk_imx8mp_audiomix_reset_unregister_adev(void *_adev)
+{
+	struct auxiliary_device *adev = _adev;
+
+	auxiliary_device_delete(adev);
+	auxiliary_device_uninit(adev);
+}
+
+static void clk_imx8mp_audiomix_reset_adev_release(struct device *dev)
+{
+	struct auxiliary_device *adev = to_auxiliary_dev(dev);
+
+	kfree(adev);
+}
+
+static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
+							 struct clk_imx8mp_audiomix_priv *priv)
+{
+	struct auxiliary_device *adev;
+	int ret;
+
+	adev = kzalloc(sizeof(*adev), GFP_KERNEL);
+	if (!adev)
+		return -ENOMEM;
+
+	adev->name = "reset";
+	adev->dev.parent = dev;
+	adev->dev.release = clk_imx8mp_audiomix_reset_adev_release;
+
+	ret = auxiliary_device_init(adev);
+	if (ret) {
+		kfree(adev);
+		return ret;
+	}
+
+	ret = auxiliary_device_add(adev);
+	if (ret) {
+		auxiliary_device_uninit(adev);
+		kfree(adev);
+		return ret;
+	}
+
+	return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, adev);
+}
+
+#else /* !CONFIG_RESET_CONTROLLER */
+
+static int clk_imx8mp_audiomix_reset_controller_register(struct clk_imx8mp_audiomix_priv *priv)
+{
+	return 0;
+}
+
+#endif /* !CONFIG_RESET_CONTROLLER */
+
 static void clk_imx8mp_audiomix_save_restore(struct device *dev, bool save)
 {
 	struct clk_imx8mp_audiomix_priv *priv = dev_get_drvdata(dev);
@@ -337,6 +394,10 @@ static int clk_imx8mp_audiomix_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_clk_register;
 
+	ret = clk_imx8mp_audiomix_reset_controller_register(dev, priv);
+	if (ret)
+		goto err_clk_register;
+
 	pm_runtime_put_sync(dev);
 	return 0;
 
-- 
2.34.1

Hi Shengjiu,

kernel test robot noticed the following build errors:

[auto build test ERROR on abelvesa/clk/imx]
[also build test ERROR on linus/master next-20240520]
[cannot apply to pza/reset/next shawnguo/for-next robh/for-next pza/imx-drm/next v6.9]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Shengjiu-Wang/dt-bindings-clock-imx8mp-Add-reset-cells-property/20240520-153230
base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux.git clk/imx
patch link:    https://lore.kernel.org/r/1716188963-16175-3-git-send-email-shengjiu.wang%40nxp.com
patch subject: [PATCH v4 2/5] clk: imx: clk-audiomix: Add reset controller
config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240521/202405210036.hMLQ7OGl-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project fa9b1be45088dce1e4b602d451f118128b94237b)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240521/202405210036.hMLQ7OGl-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405210036.hMLQ7OGl-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from drivers/clk/imx/clk-imx8mp-audiomix.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     547 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     560 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from drivers/clk/imx/clk-imx8mp-audiomix.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     573 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from drivers/clk/imx/clk-imx8mp-audiomix.c:11:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     584 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     594 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     604 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
>> drivers/clk/imx/clk-imx8mp-audiomix.c:235:2: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     235 |         kfree(adev);
         |         ^
   drivers/clk/imx/clk-imx8mp-audiomix.c:235:2: note: did you mean 'vfree'?
   include/linux/vmalloc.h:162:13: note: 'vfree' declared here
     162 | extern void vfree(const void *addr);
         |             ^
>> drivers/clk/imx/clk-imx8mp-audiomix.c:244:9: error: call to undeclared function 'kzalloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     244 |         adev = kzalloc(sizeof(*adev), GFP_KERNEL);
         |                ^
   drivers/clk/imx/clk-imx8mp-audiomix.c:244:9: note: did you mean 'vzalloc'?
   include/linux/vmalloc.h:142:14: note: 'vzalloc' declared here
     142 | extern void *vzalloc(unsigned long size) __alloc_size(1);
         |              ^
>> drivers/clk/imx/clk-imx8mp-audiomix.c:244:7: error: incompatible integer to pointer conversion assigning to 'struct auxiliary_device *' from 'int' [-Wint-conversion]
     244 |         adev = kzalloc(sizeof(*adev), GFP_KERNEL);
         |              ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/clk/imx/clk-imx8mp-audiomix.c:254:3: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     254 |                 kfree(adev);
         |                 ^
   drivers/clk/imx/clk-imx8mp-audiomix.c:261:3: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     261 |                 kfree(adev);
         |                 ^
   6 warnings and 5 errors generated.


vim +/kfree +235 drivers/clk/imx/clk-imx8mp-audiomix.c

   230	
   231	static void clk_imx8mp_audiomix_reset_adev_release(struct device *dev)
   232	{
   233		struct auxiliary_device *adev = to_auxiliary_dev(dev);
   234	
 > 235		kfree(adev);
   236	}
   237	
   238	static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
   239								 struct clk_imx8mp_audiomix_priv *priv)
   240	{
   241		struct auxiliary_device *adev;
   242		int ret;
   243	
 > 244		adev = kzalloc(sizeof(*adev), GFP_KERNEL);
   245		if (!adev)
   246			return -ENOMEM;
   247	
   248		adev->name = "reset";
   249		adev->dev.parent = dev;
   250		adev->dev.release = clk_imx8mp_audiomix_reset_adev_release;
   251	
   252		ret = auxiliary_device_init(adev);
   253		if (ret) {
   254			kfree(adev);
   255			return ret;
   256		}
   257	
   258		ret = auxiliary_device_add(adev);
   259		if (ret) {
   260			auxiliary_device_uninit(adev);
   261			kfree(adev);
   262			return ret;
   263		}
   264	
   265		return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, adev);
   266	}
   267	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

On Mon, May 20, 2024 at 03:09:20PM +0800, Shengjiu Wang wrote:
> Audiomix block control can be a reset controller for
> Enhanced Audio Return Channel (EARC), which is one of
> modules in this audiomix subsystem.
> 
> The reset controller is supported by the auxiliary device
> framework.
> 
> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
> ---
>  drivers/clk/imx/Kconfig               |  1 +
>  drivers/clk/imx/clk-imx8mp-audiomix.c | 61 +++++++++++++++++++++++++++
>  2 files changed, 62 insertions(+)
> 
> diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
> index 6da0fba68225..9edfb030bea9 100644
> --- a/drivers/clk/imx/Kconfig
> +++ b/drivers/clk/imx/Kconfig
> @@ -81,6 +81,7 @@ config CLK_IMX8MP
>  	tristate "IMX8MP CCM Clock Driver"
>  	depends on ARCH_MXC || COMPILE_TEST
>  	select MXC_CLK
> +	select AUXILIARY_BUS
>  	help
>  	    Build the driver for i.MX8MP CCM Clock Driver
>  
> diff --git a/drivers/clk/imx/clk-imx8mp-audiomix.c b/drivers/clk/imx/clk-imx8mp-audiomix.c
> index b381d6f784c8..d2eaabe431cd 100644
> --- a/drivers/clk/imx/clk-imx8mp-audiomix.c
> +++ b/drivers/clk/imx/clk-imx8mp-audiomix.c
> @@ -5,6 +5,7 @@
>   * Copyright (C) 2022 Marek Vasut <marex@denx.de>
>   */
>  
> +#include <linux/auxiliary_bus.h>
>  #include <linux/clk-provider.h>
>  #include <linux/device.h>
>  #include <linux/io.h>
> @@ -217,6 +218,62 @@ struct clk_imx8mp_audiomix_priv {
>  	struct clk_hw_onecell_data clk_data;
>  };
>  
> +#if IS_ENABLED(CONFIG_RESET_CONTROLLER)
> +
> +static void clk_imx8mp_audiomix_reset_unregister_adev(void *_adev)
> +{
> +	struct auxiliary_device *adev = _adev;
> +
> +	auxiliary_device_delete(adev);
> +	auxiliary_device_uninit(adev);
> +}
> +
> +static void clk_imx8mp_audiomix_reset_adev_release(struct device *dev)
> +{
> +	struct auxiliary_device *adev = to_auxiliary_dev(dev);
> +
> +	kfree(adev);
> +}
> +
> +static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
> +							 struct clk_imx8mp_audiomix_priv *priv)
> +{
> +	struct auxiliary_device *adev;
> +	int ret;
> +
> +	adev = kzalloc(sizeof(*adev), GFP_KERNEL);


You may use scoped free

	struct auxiliary_device *adev __free(kfree) = kzalloc(sizeof(*adev), GFP_KERNEL);

> +	if (!adev)
> +		return -ENOMEM;
> +
> +	adev->name = "reset";
> +	adev->dev.parent = dev;
> +	adev->dev.release = clk_imx8mp_audiomix_reset_adev_release;
> +
> +	ret = auxiliary_device_init(adev);
> +	if (ret) {
> +		kfree(adev);
> +		return ret;
> +	}

if use scoped free, 

	if (ret)
		return ret;

> +
> +	ret = auxiliary_device_add(adev);
> +	if (ret) {
> +		auxiliary_device_uninit(adev);
> +		kfree(adev);
> +		return ret;

the same here. 

> +	}
> +
> +	return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, adev);

if use scope free
	return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, no_free_ptr(adev));

> +}
> +
> +#else /* !CONFIG_RESET_CONTROLLER */
> +
> +static int clk_imx8mp_audiomix_reset_controller_register(struct clk_imx8mp_audiomix_priv *priv)
> +{
> +	return 0;
> +}
> +
> +#endif /* !CONFIG_RESET_CONTROLLER */
> +
>  static void clk_imx8mp_audiomix_save_restore(struct device *dev, bool save)
>  {
>  	struct clk_imx8mp_audiomix_priv *priv = dev_get_drvdata(dev);
> @@ -337,6 +394,10 @@ static int clk_imx8mp_audiomix_probe(struct platform_device *pdev)
>  	if (ret)
>  		goto err_clk_register;
>  
> +	ret = clk_imx8mp_audiomix_reset_controller_register(dev, priv);
> +	if (ret)
> +		goto err_clk_register;
> +
>  	pm_runtime_put_sync(dev);
>  	return 0;
>  
> -- 
> 2.34.1
>

On Mon, May 20, 2024 at 11:44 PM Frank Li <Frank.li@nxp.com> wrote:
>
> On Mon, May 20, 2024 at 03:09:20PM +0800, Shengjiu Wang wrote:
> > Audiomix block control can be a reset controller for
> > Enhanced Audio Return Channel (EARC), which is one of
> > modules in this audiomix subsystem.
> >
> > The reset controller is supported by the auxiliary device
> > framework.
> >
> > Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
> > ---
> >  drivers/clk/imx/Kconfig               |  1 +
> >  drivers/clk/imx/clk-imx8mp-audiomix.c | 61 +++++++++++++++++++++++++++
> >  2 files changed, 62 insertions(+)
> >
> > diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
> > index 6da0fba68225..9edfb030bea9 100644
> > --- a/drivers/clk/imx/Kconfig
> > +++ b/drivers/clk/imx/Kconfig
> > @@ -81,6 +81,7 @@ config CLK_IMX8MP
> >       tristate "IMX8MP CCM Clock Driver"
> >       depends on ARCH_MXC || COMPILE_TEST
> >       select MXC_CLK
> > +     select AUXILIARY_BUS
> >       help
> >           Build the driver for i.MX8MP CCM Clock Driver
> >
> > diff --git a/drivers/clk/imx/clk-imx8mp-audiomix.c b/drivers/clk/imx/clk-imx8mp-audiomix.c
> > index b381d6f784c8..d2eaabe431cd 100644
> > --- a/drivers/clk/imx/clk-imx8mp-audiomix.c
> > +++ b/drivers/clk/imx/clk-imx8mp-audiomix.c
> > @@ -5,6 +5,7 @@
> >   * Copyright (C) 2022 Marek Vasut <marex@denx.de>
> >   */
> >
> > +#include <linux/auxiliary_bus.h>
> >  #include <linux/clk-provider.h>
> >  #include <linux/device.h>
> >  #include <linux/io.h>
> > @@ -217,6 +218,62 @@ struct clk_imx8mp_audiomix_priv {
> >       struct clk_hw_onecell_data clk_data;
> >  };
> >
> > +#if IS_ENABLED(CONFIG_RESET_CONTROLLER)
> > +
> > +static void clk_imx8mp_audiomix_reset_unregister_adev(void *_adev)
> > +{
> > +     struct auxiliary_device *adev = _adev;
> > +
> > +     auxiliary_device_delete(adev);
> > +     auxiliary_device_uninit(adev);
> > +}
> > +
> > +static void clk_imx8mp_audiomix_reset_adev_release(struct device *dev)
> > +{
> > +     struct auxiliary_device *adev = to_auxiliary_dev(dev);
> > +
> > +     kfree(adev);
> > +}
> > +
> > +static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
> > +                                                      struct clk_imx8mp_audiomix_priv *priv)
> > +{
> > +     struct auxiliary_device *adev;
> > +     int ret;
> > +
> > +     adev = kzalloc(sizeof(*adev), GFP_KERNEL);
>
>
> You may use scoped free
>
>         struct auxiliary_device *adev __free(kfree) = kzalloc(sizeof(*adev), GFP_KERNEL);

Ok, will update the code

best regards
Shengjiu Wang
>
> > +     if (!adev)
> > +             return -ENOMEM;
> > +
> > +     adev->name = "reset";
> > +     adev->dev.parent = dev;
> > +     adev->dev.release = clk_imx8mp_audiomix_reset_adev_release;
> > +
> > +     ret = auxiliary_device_init(adev);
> > +     if (ret) {
> > +             kfree(adev);
> > +             return ret;
> > +     }
>
> if use scoped free,
>
>         if (ret)
>                 return ret;
>
> > +
> > +     ret = auxiliary_device_add(adev);
> > +     if (ret) {
> > +             auxiliary_device_uninit(adev);
> > +             kfree(adev);
> > +             return ret;
>
> the same here.
>
> > +     }
> > +
> > +     return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, adev);
>
> if use scope free
>         return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, no_free_ptr(adev));
>
> > +}
> > +
> > +#else /* !CONFIG_RESET_CONTROLLER */
> > +
> > +static int clk_imx8mp_audiomix_reset_controller_register(struct clk_imx8mp_audiomix_priv *priv)
> > +{
> > +     return 0;
> > +}
> > +
> > +#endif /* !CONFIG_RESET_CONTROLLER */
> > +
> >  static void clk_imx8mp_audiomix_save_restore(struct device *dev, bool save)
> >  {
> >       struct clk_imx8mp_audiomix_priv *priv = dev_get_drvdata(dev);
> > @@ -337,6 +394,10 @@ static int clk_imx8mp_audiomix_probe(struct platform_device *pdev)
> >       if (ret)
> >               goto err_clk_register;
> >
> > +     ret = clk_imx8mp_audiomix_reset_controller_register(dev, priv);
> > +     if (ret)
> > +             goto err_clk_register;
> > +
> >       pm_runtime_put_sync(dev);
> >       return 0;
> >
> > --
> > 2.34.1
> >

Hi Shengjiu,

kernel test robot noticed the following build errors:

[auto build test ERROR on abelvesa/clk/imx]
[also build test ERROR on linus/master next-20240520]
[cannot apply to pza/reset/next shawnguo/for-next robh/for-next pza/imx-drm/next v6.9]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Shengjiu-Wang/dt-bindings-clock-imx8mp-Add-reset-cells-property/20240520-153230
base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux.git clk/imx
patch link:    https://lore.kernel.org/r/1716188963-16175-3-git-send-email-shengjiu.wang%40nxp.com
patch subject: [PATCH v4 2/5] clk: imx: clk-audiomix: Add reset controller
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20240520/202405202110.K51viYoO-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240520/202405202110.K51viYoO-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405202110.K51viYoO-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/clk/imx/clk-imx8mp-audiomix.c: In function 'clk_imx8mp_audiomix_reset_adev_release':
>> drivers/clk/imx/clk-imx8mp-audiomix.c:235:9: error: implicit declaration of function 'kfree'; did you mean 'vfree'? [-Werror=implicit-function-declaration]
     235 |         kfree(adev);
         |         ^~~~~
         |         vfree
   drivers/clk/imx/clk-imx8mp-audiomix.c: In function 'clk_imx8mp_audiomix_reset_controller_register':
>> drivers/clk/imx/clk-imx8mp-audiomix.c:244:16: error: implicit declaration of function 'kzalloc'; did you mean 'vzalloc'? [-Werror=implicit-function-declaration]
     244 |         adev = kzalloc(sizeof(*adev), GFP_KERNEL);
         |                ^~~~~~~
         |                vzalloc
   drivers/clk/imx/clk-imx8mp-audiomix.c:244:14: warning: assignment to 'struct auxiliary_device *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     244 |         adev = kzalloc(sizeof(*adev), GFP_KERNEL);
         |              ^
   cc1: some warnings being treated as errors


vim +235 drivers/clk/imx/clk-imx8mp-audiomix.c

   230	
   231	static void clk_imx8mp_audiomix_reset_adev_release(struct device *dev)
   232	{
   233		struct auxiliary_device *adev = to_auxiliary_dev(dev);
   234	
 > 235		kfree(adev);
   236	}
   237	
   238	static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
   239								 struct clk_imx8mp_audiomix_priv *priv)
   240	{
   241		struct auxiliary_device *adev;
   242		int ret;
   243	
 > 244		adev = kzalloc(sizeof(*adev), GFP_KERNEL);
   245		if (!adev)
   246			return -ENOMEM;
   247	
   248		adev->name = "reset";
   249		adev->dev.parent = dev;
   250		adev->dev.release = clk_imx8mp_audiomix_reset_adev_release;
   251	
   252		ret = auxiliary_device_init(adev);
   253		if (ret) {
   254			kfree(adev);
   255			return ret;
   256		}
   257	
   258		ret = auxiliary_device_add(adev);
   259		if (ret) {
   260			auxiliary_device_uninit(adev);
   261			kfree(adev);
   262			return ret;
   263		}
   264	
   265		return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, adev);
   266	}
   267	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Hi Shengjiu,

kernel test robot noticed the following build warnings:

[auto build test WARNING on abelvesa/clk/imx]
[also build test WARNING on linus/master next-20240520]
[cannot apply to pza/reset/next shawnguo/for-next robh/for-next pza/imx-drm/next v6.9]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Shengjiu-Wang/dt-bindings-clock-imx8mp-Add-reset-cells-property/20240520-153230
base:   https://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux.git clk/imx
patch link:    https://lore.kernel.org/r/1716188963-16175-3-git-send-email-shengjiu.wang%40nxp.com
patch subject: [PATCH v4 2/5] clk: imx: clk-audiomix: Add reset controller
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20240520/202405201844.zf7UkDmq-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240520/202405201844.zf7UkDmq-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405201844.zf7UkDmq-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/clk/imx/clk-imx8mp-audiomix.c: In function 'clk_imx8mp_audiomix_reset_adev_release':
   drivers/clk/imx/clk-imx8mp-audiomix.c:235:9: error: implicit declaration of function 'kfree'; did you mean 'vfree'? [-Werror=implicit-function-declaration]
     235 |         kfree(adev);
         |         ^~~~~
         |         vfree
   drivers/clk/imx/clk-imx8mp-audiomix.c: In function 'clk_imx8mp_audiomix_reset_controller_register':
   drivers/clk/imx/clk-imx8mp-audiomix.c:244:16: error: implicit declaration of function 'kzalloc'; did you mean 'vzalloc'? [-Werror=implicit-function-declaration]
     244 |         adev = kzalloc(sizeof(*adev), GFP_KERNEL);
         |                ^~~~~~~
         |                vzalloc
>> drivers/clk/imx/clk-imx8mp-audiomix.c:244:14: warning: assignment to 'struct auxiliary_device *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     244 |         adev = kzalloc(sizeof(*adev), GFP_KERNEL);
         |              ^
   cc1: some warnings being treated as errors


vim +244 drivers/clk/imx/clk-imx8mp-audiomix.c

   237	
   238	static int clk_imx8mp_audiomix_reset_controller_register(struct device *dev,
   239								 struct clk_imx8mp_audiomix_priv *priv)
   240	{
   241		struct auxiliary_device *adev;
   242		int ret;
   243	
 > 244		adev = kzalloc(sizeof(*adev), GFP_KERNEL);
   245		if (!adev)
   246			return -ENOMEM;
   247	
   248		adev->name = "reset";
   249		adev->dev.parent = dev;
   250		adev->dev.release = clk_imx8mp_audiomix_reset_adev_release;
   251	
   252		ret = auxiliary_device_init(adev);
   253		if (ret) {
   254			kfree(adev);
   255			return ret;
   256		}
   257	
   258		ret = auxiliary_device_add(adev);
   259		if (ret) {
   260			auxiliary_device_uninit(adev);
   261			kfree(adev);
   262			return ret;
   263		}
   264	
   265		return devm_add_action_or_reset(dev, clk_imx8mp_audiomix_reset_unregister_adev, adev);
   266	}
   267	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki