From patchwork Mon Feb 6 07:31:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kathiravan Thirumoorthy X-Patchwork-Id: 13129423 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 3B8BEC636D3 for ; Mon, 6 Feb 2023 07:31:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229754AbjBFHbn (ORCPT ); Mon, 6 Feb 2023 02:31:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46822 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229763AbjBFHbi (ORCPT ); Mon, 6 Feb 2023 02:31:38 -0500 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 749DF1D92B; Sun, 5 Feb 2023 23:31:23 -0800 (PST) Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3166Em6r002272; Mon, 6 Feb 2023 07:31:20 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=qcppdkim1; bh=WJ2PBCzCBe5jQknbYA/Frjaf7PliducbAMo3lx1yCwA=; b=Ve59Ldf3wWBaqtCGjEa9mg8y6c1+mYaR9jwd+38BQ3Q+GWzuD85C6XM7l2hBNQxyycmi VlZZ1+0cMo94/HD7YTVuQfbP3MlrWD8iBKTEqk9MXwu+nyCsL+vXcPCKGW51qVRchqoT zHf7LViIx58p+Uw8HVpNjZO3lVTwkarBTokyVmO3sE8molBx9YOAl08cM0FByqwEHnG/ zaob7X0XEuBH6P34EnWGHKWVi+qGFZTuBCTTOwKRh/apqkS1skweW2Kl56BUKVg0grpr O+1GqksR2Vd+11rLIv4gq/81C1z7RXv0B1weFVZATO7u7sfrUZZdSfwMTX1haKtwH4fN lw== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3nhcqxu8sf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Feb 2023 07:31:20 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 3167VJdG003541 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 6 Feb 2023 07:31:19 GMT Received: from kathirav-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Sun, 5 Feb 2023 23:31:15 -0800 From: Kathiravan T To: , , , , , , , CC: , , Kathiravan T Subject: [PATCH V2] clk: qcom: ipq5332: mark GPLL4 as critical temporarily Date: Mon, 6 Feb 2023 13:01:01 +0530 Message-ID: <20230206073101.14796-1-quic_kathirav@quicinc.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: sYETrLwmqa0Vm2Kd3Qdcp-GcUCeycAql X-Proofpoint-GUID: sYETrLwmqa0Vm2Kd3Qdcp-GcUCeycAql X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-06_03,2023-02-03_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 suspectscore=0 clxscore=1015 mlxscore=0 lowpriorityscore=0 bulkscore=0 spamscore=0 phishscore=0 impostorscore=0 mlxlogscore=815 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302060064 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Clock framework disables the GPLL4 source since there are no active users for this source currently. Some of the clocks initialized by the bootloaders uses the GPLL4 as the source. Due to this, when the GPLL4 is disabled by the clock framework, system is going for the reboot. To avoid this, mark the GPLL4 as CRITICAL so that clock framework doesn't disable it. Once the users of this source is enabled, we can get rid of this flag. Signed-off-by: Kathiravan T --- Changes in V2: - Added a comment in driver explaining the need of the flag drivers/clk/qcom/gcc-ipq5332.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/clk/qcom/gcc-ipq5332.c b/drivers/clk/qcom/gcc-ipq5332.c index c8a5fa1bafca..2e043d2d0598 100644 --- a/drivers/clk/qcom/gcc-ipq5332.c +++ b/drivers/clk/qcom/gcc-ipq5332.c @@ -127,6 +127,16 @@ static struct clk_alpha_pll gpll4_main = { .parent_data = &gcc_parent_data_xo, .num_parents = 1, .ops = &clk_alpha_pll_stromer_ops, + /* + * There are no consumers for this GPLL in kernel yet, + * (will be added soon), so the clock framework + * disables this source. But some of the clocks + * initialized by boot loaders uses this source. So we + * need to keep this clock ON. Add the CRITICAL flag + * so the clock will not be disabled. Once the consumer + * in kernel is added, we can get rid off this flag. + */ + .flags = CLK_IS_CRITICAL, }, }, };