[PATCH v12 05/12] media: mediatek: jpeg: Fix multi-core clk suspend and resume setting

[kernel test robot]

Hi Kyrie,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on linuxtv-media-pending/master media-tree/master linus/master v6.19-rc6 next-20260122]
[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/Kyrie-Wu/media-mediatek-jpeg-fix-jpeg-cores-amounts-setting/20260123-112425
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20260123031713.14621-6-kyrie.wu%40mediatek.com
patch subject: [PATCH v12 05/12] media: mediatek: jpeg: Fix multi-core clk suspend and resume setting
config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20260123/202601232059.fCMMbALw-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260123/202601232059.fCMMbALw-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601232059.fCMMbALw-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c:429:12: warning: 'mtk_jpegenc_resume' defined but not used [-Wunused-function]
     429 | static int mtk_jpegenc_resume(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c:420:12: warning: 'mtk_jpegenc_suspend' defined but not used [-Wunused-function]
     420 | static int mtk_jpegenc_suspend(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c:412:12: warning: 'mtk_jpegenc_pm_resume' defined but not used [-Wunused-function]
     412 | static int mtk_jpegenc_pm_resume(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c:402:12: warning: 'mtk_jpegenc_pm_suspend' defined but not used [-Wunused-function]
     402 | static int mtk_jpegenc_pm_suspend(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~~
--
   drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c: In function 'mtk_jpegdec_hw_irq_handler':
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c:549:30: warning: variable 'ctx' set but not used [-Wunused-but-set-variable]
     549 |         struct mtk_jpeg_ctx *ctx;
         |                              ^~~
   drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c: At top level:
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c:707:12: warning: 'mtk_jpegdec_resume' defined but not used [-Wunused-function]
     707 | static int mtk_jpegdec_resume(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c:698:12: warning: 'mtk_jpegdec_suspend' defined but not used [-Wunused-function]
     698 | static int mtk_jpegdec_suspend(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c:690:12: warning: 'mtk_jpegdec_pm_resume' defined but not used [-Wunused-function]
     690 | static int mtk_jpegdec_pm_resume(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~
>> drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c:680:12: warning: 'mtk_jpegdec_pm_suspend' defined but not used [-Wunused-function]
     680 | static int mtk_jpegdec_pm_suspend(struct device *dev)
         |            ^~~~~~~~~~~~~~~~~~~~~~


vim +/mtk_jpegenc_resume +429 drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c

   401	
 > 402	static int mtk_jpegenc_pm_suspend(struct device *dev)
   403	{
   404		struct mtk_jpegenc_comp_dev *jpeg = dev_get_drvdata(dev);
   405	
   406		clk_bulk_disable_unprepare(jpeg->venc_clk.clk_num,
   407					   jpeg->venc_clk.clks);
   408	
   409		return 0;
   410	}
   411	
 > 412	static int mtk_jpegenc_pm_resume(struct device *dev)
   413	{
   414		struct mtk_jpegenc_comp_dev *jpeg = dev_get_drvdata(dev);
   415	
   416		return clk_bulk_prepare_enable(jpeg->venc_clk.clk_num,
   417					       jpeg->venc_clk.clks);
   418	}
   419	
 > 420	static int mtk_jpegenc_suspend(struct device *dev)
   421	{
   422		struct mtk_jpegenc_comp_dev *jpeg = dev_get_drvdata(dev);
   423	
   424		v4l2_m2m_suspend(jpeg->master_dev->m2m_dev);
   425	
   426		return pm_runtime_force_suspend(dev);
   427	}
   428	
 > 429	static int mtk_jpegenc_resume(struct device *dev)
   430	{
   431		struct mtk_jpegenc_comp_dev *jpeg = dev_get_drvdata(dev);
   432		int ret;
   433	
   434		ret = pm_runtime_force_resume(dev);
   435		if (ret < 0)
   436			return ret;
   437	
   438		v4l2_m2m_resume(jpeg->master_dev->m2m_dev);
   439	
   440		return 0;
   441	}
   442	

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