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SubjectRe: [PATCH v3 0/4] nvmem: qfprom: Avoid untouchable regions
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On 29/10/2020 00:28, Evan Green wrote:
> Certain fuses are protected by the XPU such that the AP cannot
> access them. Attempting to do so causes an SError. Introduce an
> SoC-specific compatible string, and introduce support into the
> nvmem core to avoid accessing specified regions. Then use those
> new elements in the qfprom driver to avoid SErrors when usermode
> accesses certain registers.
>
> Changes in v3:
> - Fixed example (Doug and rob-bot)
> - Use min()/max() macros instead of defining my own (Doug)
> - Comment changes to indicate sorting (Doug)
> - Add function to validate keepouts are proper (Doug)
>
> Changes in v2:
> - Add other soc compatible strings (Doug)
> - Fix compatible string definition (Doug)
> - Introduced keepout regions into the core (Srini)
> - Use new core support in qfprom (Srini)
>
> Evan Green (4):
> dt-bindings: nvmem: Add soc qfprom compatible strings
> arm64: dts: qcom: sc7180: Add soc-specific qfprom compat string
> nvmem: core: Add support for keepout regions
> nvmem: qfprom: Don't touch certain fuses

Except dts patch, I have applied all the patches, dts patch should go
via arm-soc tree!


--srini

>
> .../bindings/nvmem/qcom,qfprom.yaml | 17 +-
> arch/arm64/boot/dts/qcom/sc7180.dtsi | 2 +-
> drivers/nvmem/core.c | 153 +++++++++++++++++-
> drivers/nvmem/qfprom.c | 30 ++++
> include/linux/nvmem-provider.h | 17 ++
> 5 files changed, 211 insertions(+), 8 deletions(-)
>

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