From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 98D68287263; Wed, 18 Feb 2026 08:12:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771402333; cv=none; b=tm3amNbQXLDRA57iciC3Cxma06eJ0Ujdvb5GoFCKj2laSQRBgn+hokANuCJu5S4n9ql8H3HGvxji7obmY0X8bP8u8A9BUhbwGUMFjfmc98G3JDSU8EqpqfvVBi2d/6Rb7fNlMemcfj2loXmW9ByWkjq5foO5NrLpxYWHRgxTn1c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771402333; c=relaxed/simple; bh=tncM6eitUJUN0H6rXBJ9YikrPEEHKB8O2kAIgl1CwKQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UamfxZORcxkDo2Vn+xQGEkZQxhvKI1j+G2XJfxWi/eB+fm7EC6RC1f2FQvXJckb1nE9ssFpU2CI+yqmpnYWkfWiV8jYj0tG5aJye7eM2rS7JzKRHy0E97P+w53JOXmggPxAYGP/54MUVf6LESOxJHMyeteFFQ08b+0zKg+jHWm0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cWwSAhWd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="cWwSAhWd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4527FC19421; Wed, 18 Feb 2026 08:12:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771402333; bh=tncM6eitUJUN0H6rXBJ9YikrPEEHKB8O2kAIgl1CwKQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=cWwSAhWdBONnGX2KJrC3wmO4D5V2UcU6r1esgTl8Xec2rVcZvmUXzKI/4O6DI5BmJ P7nR2gcRNkAdoZb0hYAN3aDb8Jiw9zoSs0wDzdeBMR2WrFUme0fNuJJlhROvE8J04S E6J3nObpJ7RrXaEob3JzAVn3jLlzZpD1BcV6sPJSvkjZRrSGKa9GvhvBLjhhmTSYlA s/9XPXKxv7tvhi8xlNVeAoGxK2H7fCFwaMdt735X3abHVXt/14BKX08+iKZ9NQEMSo N/kn1zsQTa5E8Z3goI52EfgJImi4kjaVP6ZA0NixxI6WHCDBzLq86ijEePn+Exq52R cb2Cm7rkbZ7Jg== Message-ID: <0cc339f8-5f53-410e-b798-92b0fe46dc9e@kernel.org> Date: Wed, 18 Feb 2026 09:12:08 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/4] clk: qcom: dispcc-sdm845: set GENPD_FLAG_NO_STAY_ON flag for MDSS domain To: Dmitry Baryshkov , Bjorn Andersson , Michael Turquette , Stephen Boyd , Ulf Hansson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, stable@vger.kernel.org References: <20260217-sdm845-hdk-v1-0-866f1965fef7@oss.qualcomm.com> <20260217-sdm845-hdk-v1-1-866f1965fef7@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 17/02/2026 22:20, Dmitry Baryshkov wrote: > Since the commit 13a4b7fb6260 ("pmdomain: core: Leave powered-on genpds > on until late_initcall_sync") setting of the display clocks is partially > broken. For example, when on SDM845-HDK the bootloader leaves display > enabled, later the kernel can't set up DSI clocks, ending up with the > broken display, blinking blue. > > ------------[ cut here ]------------ > disp_cc_mdss_pclk0_clk_src: rcg didn't update its configuration. > WARNING: CPU: 7 PID: 81 at drivers/clk/qcom/clk-rcg2.c:136 update_config+0xd4/0xf0 > Modules linked in: > CPU: 7 UID: 0 PID: 81 Comm: kworker/u32:3 Not tainted 6.16.0-rc2-00040-ga3f36de2f3ba #4236 PREEMPT > Hardware name: Qualcomm Technologies, Inc. SDM845 HDK (DT) > Workqueue: events_unbound deferred_probe_work_func > pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) > pc : update_config+0xd4/0xf0 > lr : update_config+0xd4/0xf0 > sp : ffff800080992a30 > x29: ffff800080992a40 x28: 0000000000000001 x27: ffff00008db49080 > x26: ffff00008db49220 x25: 0000000000000000 x24: 0000000008d9ee20 > x23: ffffd6f1bf1f6cd8 x22: 0000000008d9ee20 x21: ffffd6f1becadfa8 > x20: ffffd6f1bf1f6cc0 x19: 0000000000000000 x18: fffffffffffef3f0 > x17: 0000000000000004 x16: 0000000000000024 x15: 0000000000000005 > x14: fffffffffffcf3ef x13: 2e6e6f6974617275 x12: 6769666e6f632073 > x11: 7469206574616470 x10: 752074276e646964 x9 : 72756769666e6f63 > x8 : ffff800080992790 x7 : ffff8000809928c0 x6 : ffff800080992850 > x5 : ffff8000809927d0 x4 : ffff800080994000 x3 : 0000000000000000 > x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0000808d1b00 Please trim the context/messages - most of above is not needed > Call trace: > update_config+0xd4/0xf0 (P) > clk_rcg2_configure+0xb8/0xc0 > clk_pixel_set_rate+0x138/0x180 > clk_change_rate+0x124/0x620 > clk_change_rate+0x1b4/0x620 > clk_change_rate+0x1b4/0x620 > clk_change_rate+0x1b4/0x620 > clk_change_rate+0x1b4/0x620 > clk_change_rate+0x1b4/0x620 > clk_change_rate+0x1b4/0x620 > clk_core_set_rate_nolock+0x230/0x2b0 > clk_set_rate+0x38/0x90 > _opp_config_clk_single+0x30/0x98 > _set_opp+0x11c/0x530 > dev_pm_opp_set_rate+0x18c/0x280 > dsi_link_clk_set_rate_6g+0x44/0x100 > msm_dsi_host_power_on+0xc4/0x988 > dsi_mgr_bridge_pre_enable+0x194/0x3e0 > drm_atomic_bridge_call_pre_enable+0x40/0x58 > drm_atomic_bridge_chain_pre_enable+0x50/0x130 > drm_atomic_helper_commit_modeset_enables+0x15c/0x26c > msm_atomic_commit_tail+0x214/0xb18 > commit_tail+0xa0/0x1a0 > drm_atomic_helper_commit+0x1a8/0x1d0 > drm_atomic_commit+0x8c/0xcc > drm_client_modeset_commit_atomic+0x258/0x2d0 > drm_client_modeset_commit_locked+0x60/0x1b8 > drm_client_modeset_commit+0x2c/0x58 > __drm_fb_helper_restore_fbdev_mode_unlocked+0xbc/0xe8 > drm_fb_helper_set_par+0x30/0x58 > fbcon_init+0x3cc/0x530 > visual_init+0x8c/0xe0 > do_bind_con_driver.isra.0+0x18c/0x320 > do_take_over_console+0x13c/0x1d4 > do_fbcon_takeover+0x6c/0xe0 > fbcon_fb_registered+0x1dc/0x1e0 > do_register_framebuffer+0x1bc/0x278 > register_framebuffer+0x30/0x5c > __drm_fb_helper_initial_config_and_unlock+0x2dc/0x5a8 > drm_fb_helper_initial_config+0x48/0x58 > drm_fbdev_client_hotplug+0x7c/0xe0 > drm_client_register+0x5c/0xa0 > drm_fbdev_client_setup+0xa4/0x1c0 > drm_client_setup+0x58/0xa0 > msm_drm_bind+0x3b4/0x460 > try_to_bring_up_aggregate_device+0x16c/0x1e0 > __component_add+0xa8/0x170 > component_add+0x14/0x20 > dsi_dev_attach+0x20/0x38 > dsi_host_attach+0x58/0x98 > devm_mipi_dsi_attach+0x34/0x90 > lt9611_attach_dsi+0x98/0x120 > lt9611_probe+0x3f8/0x4a0 > i2c_device_probe+0x154/0x340 > really_probe+0xbc/0x2c0 Nothing below makes sense either > __driver_probe_device+0x78/0x120 > driver_probe_device+0x3c/0x160 > __device_attach_driver+0xb8/0x140 > bus_for_each_drv+0x88/0xe8 > __device_attach+0xa0/0x198 > device_initial_probe+0x14/0x20 > bus_probe_device+0xb4/0xc0 > deferred_probe_work_func+0x90/0xcc > process_one_work+0x214/0x64c > worker_thread+0x1c0/0x364 > kthread+0x14c/0x220 > ret_from_fork+0x10/0x20 > irq event stamp: 110949 > hardirqs last enabled at (110949): [] _raw_spin_unlock_irqrestore+0x6c/0x74 > hardirqs last disabled at (110948): [] _raw_spin_lock_irqsave+0x84/0x88 > softirqs last enabled at (109450): [] release_sock+0x90/0xa4 > softirqs last disabled at (109448): [] release_sock+0x28/0xa4 > ---[ end trace 0000000000000000 ]--- > ------------[ cut here ]------------ > disp_cc_mdss_pclk1_clk_src: rcg didn't update its configuration. And that's the same log. Best regards, Krzysztof