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[0/3] Add support for tsens controller reinit via trustzone

Message ID 20220701145815.2037993-1-bhupesh.sharma@linaro.org (mailing list archive)
Headers show
Series Add support for tsens controller reinit via trustzone | expand

Message

Bhupesh Sharma July 1, 2022, 2:58 p.m. UTC 
Some versions of QCoM 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: 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 (3):
  firmware: qcom_scm: Add support for tsens reinit workaround
  thermal: qcom: tsens: Add support for 'needs_reinit_wa' for sm8150
  thermal: qcom: tsens: Implement re-initialization workaround quirk

 drivers/firmware/qcom_scm.c     |  17 +++
 drivers/firmware/qcom_scm.h     |   4 +
 drivers/thermal/qcom/tsens-v2.c |  14 ++
 drivers/thermal/qcom/tsens.c    | 241 +++++++++++++++++++++++++++++++-
 drivers/thermal/qcom/tsens.h    |  12 +-
 include/linux/qcom_scm.h        |   2 +
 6 files changed, 282 insertions(+), 8 deletions(-)