From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E11CC28B2B for ; Sun, 14 Aug 2022 15:29:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240393AbiHNP3O (ORCPT ); Sun, 14 Aug 2022 11:29:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240182AbiHNP2q (ORCPT ); Sun, 14 Aug 2022 11:28:46 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74CC6B842; Sun, 14 Aug 2022 08:28:45 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id F2C0860C14; Sun, 14 Aug 2022 15:28:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 595E3C433B5; Sun, 14 Aug 2022 15:28:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1660490924; bh=/0+jimdYwUCJN42zHCwjCqChS2Ubs8v0UBsiMm24SKs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E/SXvsl0o0z3AB57In3ObvZyK5fZvM2FA3xXQuNl12hxoGfDMaENqF2zzeltr0Tsz sMwXvNIaDAMqQVCF7K01JIfC23LMxd/Ch2fb8w7FCz/GMJZQ0mP21EubgIPrKKTGVE nedd0UIhhF1S0YOh9J7wtkVtmg5GCa9ddtx8oHRJN+b+g1l5fP3iz12QdwREGqX36e gFkNHkNH4/cu/eP8hCs2H4IQQeE7FagLdXdewEIpogM9Q+8QsEXQwpv65raBeAXjCt 3OOzNbTYvR5NwWRpNUPjwua9Vhzxe0InoqTsVIPprzISte4tJCn2C+SL7TVd3KMkA/ IOMrvizMxZPBw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Robert Marko , Bjorn Andersson , Sasha Levin , agross@kernel.org, mturquette@baylibre.com, sboyd@kernel.org, linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH AUTOSEL 5.19 25/64] clk: qcom: ipq8074: dont disable gcc_sleep_clk_src Date: Sun, 14 Aug 2022 11:23:58 -0400 Message-Id: <20220814152437.2374207-25-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220814152437.2374207-1-sashal@kernel.org> References: <20220814152437.2374207-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Robert Marko [ Upstream commit 1bf7305e79aab095196131bdc87a97796e0e3fac ] Once the usb sleep clocks are disabled, clock framework is trying to disable the sleep clock source also. However, it seems that it cannot be disabled and trying to do so produces: [ 245.436390] ------------[ cut here ]------------ [ 245.441233] gcc_sleep_clk_src status stuck at 'on' [ 245.441254] WARNING: CPU: 2 PID: 223 at clk_branch_wait+0x130/0x140 [ 245.450435] Modules linked in: xhci_plat_hcd xhci_hcd dwc3 dwc3_qcom leds_gpio [ 245.456601] CPU: 2 PID: 223 Comm: sh Not tainted 5.18.0-rc4 #215 [ 245.463889] Hardware name: Xiaomi AX9000 (DT) [ 245.470050] pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 245.474307] pc : clk_branch_wait+0x130/0x140 [ 245.481073] lr : clk_branch_wait+0x130/0x140 [ 245.485588] sp : ffffffc009f2bad0 [ 245.489838] x29: ffffffc009f2bad0 x28: ffffff8003e6c800 x27: 0000000000000000 [ 245.493057] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800226ef20 [ 245.500175] x23: ffffffc0089ff550 x22: 0000000000000000 x21: ffffffc008476ad0 [ 245.507294] x20: 0000000000000000 x19: ffffffc00965ac70 x18: fffffffffffc51a7 [ 245.514413] x17: 68702e3030303837 x16: 3a6d726f6674616c x15: ffffffc089f2b777 [ 245.521531] x14: ffffffc0095c9d18 x13: 0000000000000129 x12: 0000000000000129 [ 245.528649] x11: 00000000ffffffea x10: ffffffc009621d18 x9 : 0000000000000001 [ 245.535767] x8 : 0000000000000001 x7 : 0000000000017fe8 x6 : 0000000000000001 [ 245.542885] x5 : ffffff803fdca6d8 x4 : 0000000000000000 x3 : 0000000000000027 [ 245.550002] x2 : 0000000000000027 x1 : 0000000000000023 x0 : 0000000000000026 [ 245.557122] Call trace: [ 245.564229] clk_branch_wait+0x130/0x140 [ 245.566490] clk_branch2_disable+0x2c/0x40 [ 245.570656] clk_core_disable+0x60/0xb0 [ 245.574561] clk_core_disable+0x68/0xb0 [ 245.578293] clk_disable+0x30/0x50 [ 245.582113] dwc3_qcom_remove+0x60/0xc0 [dwc3_qcom] [ 245.585588] platform_remove+0x28/0x60 [ 245.590361] device_remove+0x4c/0x80 [ 245.594179] device_release_driver_internal+0x1dc/0x230 [ 245.597914] device_driver_detach+0x18/0x30 [ 245.602861] unbind_store+0xec/0x110 [ 245.607027] drv_attr_store+0x24/0x40 [ 245.610847] sysfs_kf_write+0x44/0x60 [ 245.614405] kernfs_fop_write_iter+0x128/0x1c0 [ 245.618052] new_sync_write+0xc0/0x130 [ 245.622391] vfs_write+0x1d4/0x2a0 [ 245.626123] ksys_write+0x58/0xe0 [ 245.629508] __arm64_sys_write+0x1c/0x30 [ 245.632895] invoke_syscall.constprop.0+0x5c/0x110 [ 245.636890] do_el0_svc+0xa0/0x150 [ 245.641488] el0_svc+0x18/0x60 [ 245.644872] el0t_64_sync_handler+0xa4/0x130 [ 245.647914] el0t_64_sync+0x174/0x178 [ 245.652340] ---[ end trace 0000000000000000 ]--- So, add CLK_IS_CRITICAL flag to the clock so that the kernel won't try to disable the sleep clock. Signed-off-by: Robert Marko Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20220515210048.483898-10-robimarko@gmail.com Signed-off-by: Sasha Levin --- drivers/clk/qcom/gcc-ipq8074.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c index 541016db3c4b..6bdf65a6e33d 100644 --- a/drivers/clk/qcom/gcc-ipq8074.c +++ b/drivers/clk/qcom/gcc-ipq8074.c @@ -662,6 +662,7 @@ static struct clk_branch gcc_sleep_clk_src = { }, .num_parents = 1, .ops = &clk_branch2_ops, + .flags = CLK_IS_CRITICAL, }, }, }; -- 2.35.1