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Message-ID: <202601232059.fCMMbALw-lkp@intel.com>
Date: Fri, 23 Jan 2026 20:26:08 +0800
From: kernel test robot <lkp@...el.com>
To: Kyrie Wu <kyrie.wu@...iatek.com>, Hans Verkuil <hverkuil@...nel.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk@...nel.org>,
Nicolas Dufresne <nicolas.dufresne@...labora.com>,
Conor Dooley <conor+dt@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-media@...r.kernel.org
Subject: Re: [PATCH v12 05/12] media: mediatek: jpeg: Fix multi-core clk
suspend and resume setting
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@...el.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
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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