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SubjectRe: [PATCH v3 0/4] Add support for tsens controller reinit via trustzone
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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 <amitk@kernel.org>
> Cc: Thara Gopinath <thara.gopinath@gmail.com>
> 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

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