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[84.219.138.247]) by smtp.gmail.com with ESMTPSA id n2sm4593350ljj.30.2019.10.02.02.19.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Oct 2019 02:19:52 -0700 (PDT) Date: Wed, 2 Oct 2019 11:19:50 +0200 From: Niklas Cassel To: Jeffrey Hugo Cc: Amit Kucheria , lkml , MSM , Bjorn Andersson , Andy Gross , Marc Gonzalez , Sibi Sankar , daniel.lezcano@linaro.org, Andy Gross , David Brown , Li Yang , Shawn Guo , DTML Subject: Re: [PATCH v2 7/9] arm64: dts: qcom: msm8998: Add PSCI cpuidle low power states Message-ID: <20191002091950.GA9393@centauri> References: <49cf5d94beb9af9ef4e78d4c52f3b0ad20b7c63f.1558430617.git.amit.kucheria@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 30, 2019 at 04:20:15PM -0600, Jeffrey Hugo wrote: > Amit, the merged version of the below change causes a boot failure > (nasty hang, sometimes with RCU stalls) on the msm8998 laptops. Oddly > enough, it seems to be resolved if I remove the cpu-idle-states > property from one of the cpu nodes. > > I see no issues with the msm8998 MTP. Hello Jeffrey, Amit, If the PSCI idle states work properly on the msm8998 devboard (MTP), but causes crashes on msm8998 laptops, the only logical change is that the PSCI firmware is different between the two devices. Kind regards, Niklas