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 B27374086A; Tue, 26 Aug 2025 13:40:05 +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=1756215605; cv=none; b=tF8g7XAz4QFuPcJP/czNAF2zBDGA1A2IiyMDaWnfBI44myo3QzPn4k5dpPs82u5zvWCHgoJLpZvWyMl/VT+p6TPFEBUrvKRT/kxEp8BS6WY5nXYVchvHqsOBi62Nq8eOT7baSt6hquJrwsRTgm7UHOwJuB3B+qKhrBv5EyDyPOk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756215605; c=relaxed/simple; bh=wtQtWgg2P/m/gSfMcGuO1nnPpHeEVekp9w4DafSRDkI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=g+DD+gpLYZw6QRwNRNwhncxkhARyCKf6mYbAw/iT9OSD0ppgseNOID37okzmUaxfKwnSHAxqsdd+BnIDU8M6UH6PmIRIZ4Jn1B90G1FsKZb/FpAuXlBMPZ/5YHH2GP5yrTQQgtl+EBBT481buotcB5sAxYWsQ4IzHA/HeEsaDOc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Fb+CV19W; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Fb+CV19W" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00A91C4CEF1; Tue, 26 Aug 2025 13:40:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756215605; bh=wtQtWgg2P/m/gSfMcGuO1nnPpHeEVekp9w4DafSRDkI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Fb+CV19Wje4nNlUN+jvB7DT7UFQEHVz4WrPA3o57ec4u9aIZSk82fB8c1HscHBPEY AoGsrd2Rd/KflgcQc2nshxsbZLDAllM3DfDbEab+3Jd9bwflauLxbJy5q+MWOsLY6o mn+rODgJNXV9OLPqrFef7qbr9nTfL67FXYiHPd94= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable , Thinh Nguyen , Konrad Dybcio , Krishna Kurapati , Sasha Levin Subject: [PATCH 5.15 066/644] usb: dwc3: qcom: Dont leave BCR asserted Date: Tue, 26 Aug 2025 13:02:37 +0200 Message-ID: <20250826110948.134310366@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110946.507083938@linuxfoundation.org> References: <20250826110946.507083938@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Krishna Kurapati commit ef8abc0ba49ce717e6bc4124e88e59982671f3b5 upstream. Leaving the USB BCR asserted prevents the associated GDSC to turn on. This blocks any subsequent attempts of probing the device, e.g. after a probe deferral, with the following showing in the log: [ 1.332226] usb30_prim_gdsc status stuck at 'off' Leave the BCR deasserted when exiting the driver to avoid this issue. Cc: stable Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Acked-by: Thinh Nguyen Reviewed-by: Konrad Dybcio Signed-off-by: Krishna Kurapati Link: https://lore.kernel.org/r/20250709132900.3408752-1-krishna.kurapati@oss.qualcomm.com [ adapted to individual clock management API instead of bulk clock operations ] Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-qcom.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -791,13 +791,13 @@ static int dwc3_qcom_probe(struct platfo ret = reset_control_deassert(qcom->resets); if (ret) { dev_err(&pdev->dev, "failed to deassert resets, err=%d\n", ret); - goto reset_assert; + return ret; } ret = dwc3_qcom_clk_init(qcom, of_clk_get_parent_count(np)); if (ret) { dev_err(dev, "failed to get clocks\n"); - goto reset_assert; + return ret; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -898,8 +898,6 @@ clk_disable: clk_disable_unprepare(qcom->clks[i]); clk_put(qcom->clks[i]); } -reset_assert: - reset_control_assert(qcom->resets); return ret; } @@ -929,7 +927,6 @@ static int dwc3_qcom_remove(struct platf qcom->num_clocks = 0; dwc3_qcom_interconnect_exit(qcom); - reset_control_assert(qcom->resets); pm_runtime_allow(dev); pm_runtime_disable(dev);