[PATCH v1 1/1] leds: mt6323: Get rid of custom led_init_default_state_get()

[PATCH v1 1/1] leds: mt6323: Get rid of custom led_init_default_state_get()

[Andy Shevchenko]

LED core provides a helper to parse default state from firmware node.
Use it instead of custom implementation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/leds/leds-mt6323.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c
index f59e0e8bda8b..17ee88043f52 100644
--- a/drivers/leds/leds-mt6323.c
+++ b/drivers/leds/leds-mt6323.c
@@ -339,23 +339,23 @@ static int mt6323_led_set_dt_default(struct led_classdev *cdev,
 				     struct device_node *np)
 {
 	struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
-	const char *state;
+	enum led_default_state state;
 	int ret = 0;
 
-	state = of_get_property(np, "default-state", NULL);
-	if (state) {
-		if (!strcmp(state, "keep")) {
-			ret = mt6323_get_led_hw_brightness(cdev);
-			if (ret < 0)
-				return ret;
-			led->current_brightness = ret;
-			ret = 0;
-		} else if (!strcmp(state, "on")) {
-			ret =
-			mt6323_led_set_brightness(cdev, cdev->max_brightness);
-		} else  {
-			ret = mt6323_led_set_brightness(cdev, LED_OFF);
-		}
+	state = led_init_default_state_get(of_fwnode_handle(np));
+	switch (state) {
+	case LEDS_DEFSTATE_ON:
+		ret = mt6323_led_set_brightness(cdev, cdev->max_brightness);
+		break;
+	case LEDS_DEFSTATE_KEEP:
+		ret = mt6323_get_led_hw_brightness(cdev);
+		if (ret < 0)
+			return ret;
+		led->current_brightness = ret;
+		ret = 0;
+		break;
+	default:
+		ret = mt6323_led_set_brightness(cdev, LED_OFF);
 	}
 
 	return ret;
-- 
2.35.1


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Re: [PATCH v1 1/1] leds: mt6323: Get rid of custom led_init_default_state_get()

[kernel test robot]

Hi Andy,

I love your patch! Yet something to improve:

[auto build test ERROR on pavel-leds/for-next]
[also build test ERROR on linus/master v5.19 next-20220728]
[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/Andy-Shevchenko/leds-mt6323-Get-rid-of-custom-led_init_default_state_get/20220803-052811
base:   git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git for-next
config: x86_64-randconfig-a005-20220801 (https://download.01.org/0day-ci/archive/20220803/202208030841.jfVsINQD-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 52cd00cabf479aa7eb6dbb063b7ba41ea57bce9e)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/30cc6458329b3d5a593e0d2173dc63d8dc6446f5
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Andy-Shevchenko/leds-mt6323-Get-rid-of-custom-led_init_default_state_get/20220803-052811
        git checkout 30cc6458329b3d5a593e0d2173dc63d8dc6446f5
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/leds/leds-mt6323.c:345:10: error: call to undeclared function 'led_init_default_state_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
           state = led_init_default_state_get(of_fwnode_handle(np));
                   ^
   1 error generated.


vim +/led_init_default_state_get +345 drivers/leds/leds-mt6323.c

   337	
   338	static int mt6323_led_set_dt_default(struct led_classdev *cdev,
   339					     struct device_node *np)
   340	{
   341		struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
   342		enum led_default_state state;
   343		int ret = 0;
   344	
 > 345		state = led_init_default_state_get(of_fwnode_handle(np));
   346		switch (state) {
   347		case LEDS_DEFSTATE_ON:
   348			ret = mt6323_led_set_brightness(cdev, cdev->max_brightness);
   349			break;
   350		case LEDS_DEFSTATE_KEEP:
   351			ret = mt6323_get_led_hw_brightness(cdev);
   352			if (ret < 0)
   353				return ret;
   354			led->current_brightness = ret;
   355			ret = 0;
   356			break;
   357		default:
   358			ret = mt6323_led_set_brightness(cdev, LED_OFF);
   359		}
   360	
   361		return ret;
   362	}
   363	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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Re: [PATCH v1 1/1] leds: mt6323: Get rid of custom led_init_default_state_get()

[kernel test robot]

Hi Andy,

I love your patch! Yet something to improve:

[auto build test ERROR on pavel-leds/for-next]
[also build test ERROR on linus/master v5.19 next-20220728]
[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/Andy-Shevchenko/leds-mt6323-Get-rid-of-custom-led_init_default_state_get/20220803-052811
base:   git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds.git for-next
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220803/202208031036.PJtAjxAm-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/30cc6458329b3d5a593e0d2173dc63d8dc6446f5
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Andy-Shevchenko/leds-mt6323-Get-rid-of-custom-led_init_default_state_get/20220803-052811
        git checkout 30cc6458329b3d5a593e0d2173dc63d8dc6446f5
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/leds/leds-mt6323.c: In function 'mt6323_led_set_dt_default':
>> drivers/leds/leds-mt6323.c:345:17: error: implicit declaration of function 'led_init_default_state_get'; did you mean 'led_get_default_pattern'? [-Werror=implicit-function-declaration]
     345 |         state = led_init_default_state_get(of_fwnode_handle(np));
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~
         |                 led_get_default_pattern
   cc1: some warnings being treated as errors


vim +345 drivers/leds/leds-mt6323.c

   337	
   338	static int mt6323_led_set_dt_default(struct led_classdev *cdev,
   339					     struct device_node *np)
   340	{
   341		struct mt6323_led *led = container_of(cdev, struct mt6323_led, cdev);
   342		enum led_default_state state;
   343		int ret = 0;
   344	
 > 345		state = led_init_default_state_get(of_fwnode_handle(np));
   346		switch (state) {
   347		case LEDS_DEFSTATE_ON:
   348			ret = mt6323_led_set_brightness(cdev, cdev->max_brightness);
   349			break;
   350		case LEDS_DEFSTATE_KEEP:
   351			ret = mt6323_get_led_hw_brightness(cdev);
   352			if (ret < 0)
   353				return ret;
   354			led->current_brightness = ret;
   355			ret = 0;
   356			break;
   357		default:
   358			ret = mt6323_led_set_brightness(cdev, LED_OFF);
   359		}
   360	
   361		return ret;
   362	}
   363	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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