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Thu, 05 Nov 2020 20:14:46 -0800 (PST) Date: Fri, 6 Nov 2020 09:44:41 +0530 From: Viresh Kumar To: Andreas Kemnade Cc: stephan@gerhold.net, rjw@rjwysocki.net, khilman@kernel.org, ulf.hansson@linaro.org, vireshk@kernel.org, nm@ti.com, sboyd@kernel.org, linux-pm@vger.kernel.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, letux-kernel@openphoenux.org Subject: Re: [REGRESSION] opp: Allow dev_pm_opp_get_opp_table() to return -EPROBE_DEFER Message-ID: <20201106041441.uuz5vrtqeyn6ijdv@vireshk-i7> References: <20201106001018.02200778@aktux> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201106001018.02200778@aktux> User-Agent: NeoMutt/20180716-391-311a52 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06-11-20, 00:10, Andreas Kemnade wrote: > Hi, > > On the GTA04 (DM3730, devicetree omap3-gta04*) I get my console flooded > up with the following: > [ 24.517211] cpu cpu0: multiple regulators are not supported > [ 24.523040] cpufreq: __target_index: Failed to change cpu frequency: -22 > [ 24.537231] ------------[ cut here ]------------ > [ 24.542083] WARNING: CPU: 0 PID: 5 at drivers/opp/core.c:678 dev_pm_opp_set_rate+0x23c/0x494 > [ 24.551086] Modules linked in: usb_f_ecm g_ether usb_f_rndis u_ether libcomposite configfs phy_twl4030_usb omap2430 musb_hdrc overlay > [ 24.563842] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G W 5.9.0-rc1-00008-g629238068eb9 #14 > [ 24.573852] Hardware name: Generic OMAP36xx (Flattened Device Tree) > [ 24.580413] Workqueue: events dbs_work_handler > [ 24.585083] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) > [ 24.593200] [] (show_stack) from [] (dump_stack+0x8c/0xac) > [ 24.600769] [] (dump_stack) from [] (__warn+0xcc/0xe4) > [ 24.608001] [] (__warn) from [] (warn_slowpath_fmt+0x74/0xa0) > [ 24.615844] [] (warn_slowpath_fmt) from [] (dev_pm_opp_set_rate+0x23c/0x494) > [ 24.625061] [] (dev_pm_opp_set_rate) from [] (set_target+0x2c/0x4c) > [ 24.633453] [] (set_target) from [] (__cpufreq_driver_target+0x190/0x22c) > [ 24.642395] [] (__cpufreq_driver_target) from [] (od_dbs_update+0xcc/0x158) > [ 24.651489] [] (od_dbs_update) from [] (dbs_work_handler+0x2c/0x54) > [ 24.659881] [] (dbs_work_handler) from [] (process_one_work+0x210/0x358) > [ 24.668731] [] (process_one_work) from [] (worker_thread+0x22c/0x2d0) > [ 24.677307] [] (worker_thread) from [] (kthread+0x140/0x14c) > [ 24.685058] [] (kthread) from [] (ret_from_fork+0x14/0x2c) > [ 24.692626] Exception stack(0xde4b7fb0 to 0xde4b7ff8) > [ 24.697906] 7fa0: 00000000 00000000 00000000 00000000 > [ 24.706481] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 24.715057] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 24.722198] ---[ end trace 038b3f231fae6f81 ]--- > > endlessly after the $subject commit. Any hints? The fix for this has been in linux-next for a couple of days and it made it to linus/master yesterday. 47efcbcb340c opp: Fix early exit from dev_pm_opp_register_set_opp_helper() -- viresh