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([2401:4900:1c60:5362:9d7f:2354:1d0a:78e3]) by smtp.gmail.com with ESMTPSA id s6-20020a17090a698600b001f04479017fsm2359523pjj.29.2022.08.24.22.00.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Aug 2022 22:00:45 -0700 (PDT) Message-ID: <67080ec0-9947-0521-63b1-bb6bee7aeea7@linaro.org> Date: Thu, 25 Aug 2022 10:30:39 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v3 0/4] Add support for tsens controller reinit via trustzone Content-Language: en-US To: linux-pm@vger.kernel.org Cc: bhupesh.linux@gmail.com, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, konrad.dybcio@somainline.org, linux-arm-msm@vger.kernel.org, daniel.lezcano@linaro.org, robh+dt@kernel.org, rafael@kernel.org, Amit Kucheria , Thara Gopinath References: <20220804054638.3197294-1-bhupesh.sharma@linaro.org> From: Bhupesh Sharma In-Reply-To: <20220804054638.3197294-1-bhupesh.sharma@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On 8/4/22 11:16 AM, Bhupesh Sharma wrote: > Changes since v2: > ----------------- > - v2 can be viewed here: https://lore.kernel.org/linux-arm-msm/20220724122424.2509021-1-bhupesh.sharma@linaro.org/ > - Dropped sm6375 specific patch from v3, as suggested by Konrad. > - Rebased on latest linux-next (master branch) tip. > > Changes since v1: > ----------------- > - v1 can be viewed here: https://lore.kernel.org/linux-arm-msm/20220701145815.2037993-1-bhupesh.sharma@linaro.org/ > - Addressed several comments from Bjorn regarding locking, serialization > etc received on v1. > - Addressed Konrad's concerns about the tsens controller found on sm6375 > SoC which seems to start in a bad state or is disabled when entering > the linux world. > - This series would depend on sm6375 tsens controller changes being > added by Konrad. It is based on linux-next (master branch) tip. > > Some versions of Qualcomm tsens controller might enter a > 'bad state' causing sensor temperatures/interrupts status > to be in an 'invalid' state. > > It is recommended to re-initialize the tsens controller > via trustzone (secure registers) using scm call(s) when that > happens. > > This patchset adds the support for the same. > > Cc: bjorn.andersson@linaro.org > Cc: Amit Kucheria > Cc: Thara Gopinath > Cc: linux-pm@vger.kernel.org > Cc: linux-arm-msm@vger.kernel.org > > Bhupesh Sharma (4): > firmware: qcom: scm: Add support for tsens reinit workaround > thermal: qcom: tsens: Add hooks for supplying platform specific reinit > quirks > thermal: qcom: tsens: Add driver support for re-initialization quirk > thermal: qcom: tsens: Add reinit quirk support for tsens v2 > controllers > > drivers/firmware/qcom_scm.c | 15 +++ > drivers/firmware/qcom_scm.h | 4 + > drivers/thermal/qcom/tsens-v2.c | 15 +++ > drivers/thermal/qcom/tsens.c | 200 ++++++++++++++++++++++++++++++++ > drivers/thermal/qcom/tsens.h | 18 ++- > include/linux/qcom_scm.h | 2 + > 6 files changed, 253 insertions(+), 1 deletion(-) > Gentle ping. Thanks, Bhupesh