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SubjectRe: [PATCH] phy: mapphone-mdm6600: Fix PM disable depth imbalance in phy_mdm6600_probe
Hi Miaoqian,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.16-rc8 next-20220105]
[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]

url: https://github.com/0day-ci/linux/commits/Miaoqian-Lin/phy-mapphone-mdm6600-Fix-PM-disable-depth-imbalance-in-phy_mdm6600_probe/20220105-204113
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git c9e6606c7fe92b50a02ce51dda82586ebdf99b48
config: hexagon-randconfig-r035-20220105 (https://download.01.org/0day-ci/archive/20220106/202201060211.yT7coTKI-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d5b6e30ed3acad794dd0aec400e617daffc6cc3d)
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/0day-ci/linux/commit/62cad5a4dd9feab731b40f99e6e0bf7a2429f1ed
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Miaoqian-Lin/phy-mapphone-mdm6600-Fix-PM-disable-depth-imbalance-in-phy_mdm6600_probe/20220105-204113
git checkout 62cad5a4dd9feab731b40f99e6e0bf7a2429f1ed
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/phy/motorola/

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

All warnings (new ones prefixed by >>):

>> drivers/phy/motorola/phy-mapphone-mdm6600.c:633:1: warning: unused label 'disable_pm' [-Wunused-label]
disable_pm:
^~~~~~~~~~~
1 warning generated.


vim +/disable_pm +633 drivers/phy/motorola/phy-mapphone-mdm6600.c

555
556 static int phy_mdm6600_probe(struct platform_device *pdev)
557 {
558 struct phy_mdm6600 *ddata;
559 int error;
560
561 ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
562 if (!ddata)
563 return -ENOMEM;
564
565 INIT_DELAYED_WORK(&ddata->bootup_work,
566 phy_mdm6600_deferred_power_on);
567 INIT_DELAYED_WORK(&ddata->status_work, phy_mdm6600_status);
568 INIT_DELAYED_WORK(&ddata->modem_wake_work, phy_mdm6600_modem_wake);
569 init_completion(&ddata->ack);
570
571 ddata->dev = &pdev->dev;
572 platform_set_drvdata(pdev, ddata);
573
574 /* Active state selected in phy_mdm6600_power_on() */
575 error = pinctrl_pm_select_sleep_state(ddata->dev);
576 if (error)
577 dev_warn(ddata->dev, "%s: error with sleep_state: %i\n",
578 __func__, error);
579
580 error = phy_mdm6600_init_lines(ddata);
581 if (error)
582 return error;
583
584 phy_mdm6600_init_irq(ddata);
585 schedule_delayed_work(&ddata->bootup_work, 0);
586
587 /*
588 * See phy_mdm6600_device_power_on(). We should be able
589 * to remove this eventually when ohci-platform can deal
590 * with -EPROBE_DEFER.
591 */
592 msleep(PHY_MDM6600_PHY_DELAY_MS + 500);
593
594 /*
595 * Enable PM runtime only after PHY has been powered up properly.
596 * It is currently only needed after USB suspends mdm6600 and n_gsm
597 * needs to access the device. We don't want to do this earlier as
598 * gpio mode0 pin doubles as mdm6600 wake-up gpio.
599 */
600 pm_runtime_use_autosuspend(ddata->dev);
601 pm_runtime_set_autosuspend_delay(ddata->dev,
602 MDM6600_MODEM_IDLE_DELAY_MS);
603 pm_runtime_enable(ddata->dev);
604 error = pm_runtime_get_sync(ddata->dev);
605 if (error < 0) {
606 dev_warn(ddata->dev, "failed to wake modem: %i\n", error);
607 pm_runtime_put_noidle(ddata->dev);
608 goto cleanup;
609 }
610
611 ddata->generic_phy = devm_phy_create(ddata->dev, NULL, &gpio_usb_ops);
612 if (IS_ERR(ddata->generic_phy)) {
613 error = PTR_ERR(ddata->generic_phy);
614 goto idle;
615 }
616
617 phy_set_drvdata(ddata->generic_phy, ddata);
618
619 ddata->phy_provider =
620 devm_of_phy_provider_register(ddata->dev,
621 of_phy_simple_xlate);
622 if (IS_ERR(ddata->phy_provider))
623 error = PTR_ERR(ddata->phy_provider);
624
625 idle:
626 pm_runtime_mark_last_busy(ddata->dev);
627 pm_runtime_put_autosuspend(ddata->dev);
628
629 cleanup:
630 if (error < 0)
631 phy_mdm6600_device_power_off(ddata);
632
> 633 disable_pm:
634 pm_runtime_disable(ddata->dev);
635
636 return error;
637 }
638

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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