From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753266AbdJMEg5 (ORCPT ); Fri, 13 Oct 2017 00:36:57 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:36654 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750733AbdJMEg4 (ORCPT ); Fri, 13 Oct 2017 00:36:56 -0400 From: Shriya To: mpe@ellerman.id.au, mikey@neuling.org Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, ego@linux.vnet.ibm.com, shilpa.bhat@linux.vnet.ibm.com, Shriya , stable@vger.kernel.org Subject: [PATCH v2] cpufreq: powernv: Fix the frequency read by /proc/cpuinfo Date: Fri, 13 Oct 2017 10:06:41 +0530 X-Mailer: git-send-email 1.9.1 X-TM-AS-MML: disable x-cbid: 17101304-0040-0000-0000-000004025D7C X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17101304-0041-0000-0000-000020A4771C Message-Id: <1507869401-4715-1-git-send-email-shriyak@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-10-13_02:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1710130064 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The call to /proc/cpuinfo in turn calls cpufreq_quick_get() which returns the last frequency requested by the kernel, but may not reflect the actual frequency the processor is running at. This patch makes a call to cpufreq_get() instead which returns the current frequency reported by the hardware. Fixes : commit fb5153d05a7d ("powerpc: powernv: Implement ppc_md.get_proc_freq()") Cc: stable@vger.kernel.org Signed-off-by: Shriya --- arch/powerpc/platforms/powernv/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index cf52d53..58e7ae5 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -312,7 +312,7 @@ static unsigned long pnv_get_proc_freq(unsigned int cpu) { unsigned long ret_freq; - ret_freq = cpufreq_quick_get(cpu) * 1000ul; + ret_freq = cpufreq_get(cpu) * 1000ul; /* * If the backend cpufreq driver does not exist, -- 1.9.1