linux-kernel - Re: [PATCH v4 0/6] soc: qcom: llcc: Add support for QDU1000/QRU1000

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Date:   Fri, 30 Jun 2023 13:45:14 -0700
From:   Bjorn Andersson <quic_bjorande@...cinc.com>
To:     Komal Bajaj <quic_kbajaj@...cinc.com>
CC:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v4 0/6] soc: qcom: llcc: Add support for QDU1000/QRU1000

On Fri, Jun 23, 2023 at 07:48:00PM +0530, Komal Bajaj wrote:
> From: Komal-Bajaj <quic_kbajaj@...cinc.com>
> 

The patches in this series are going to be merged by two different
maintainers, the interface between them is an existing, clean API, so it
will be possible to merge the two halfs independently.

So please split this into one series for the addition of the nvmem
driver and one for the llcc pieces (with the nvmem interface/stub update
in the llcc one).

Thanks,
Bjorn

> This patch series does the following -
>  * Add secure qfprom driver for reading secure fuse region in qfprom driver
>  * Add dt-bindings for secure qfprom
>  * Refactor LLCC driver to support multiple configuration
>  * Add support for multi channel DDR configuration in LLCC
>  * Add LLCC support for the Qualcomm QDU1000 and QRU1000 SoCs
> 
> Changes in v4 -
>  - Created a separate driver for reading from secure fuse region as suggested.
>  - Added patch for dt-bindings of secure qfprom driver accordingly.
>  - Added new properties in the dt-bindings for LLCC. 
>  - Implemented new logic to read the nvmem cell as suggested by Bjorn.
>  - Separating the DT patches from this series as per suggestion.
> 
> Changes in v3-
>  - Addressed comments from Krzysztof and Mani.
>  - Using qfprom to read DDR configuration from feature register.
> 
> Changes in v2:
>   - Addressing comments from Konrad.
> 
> Komal Bajaj (6):
>   dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom
>   dt-bindings: cache: qcom,llcc: Add LLCC compatible for QDU1000/QRU1000
>   nvmem: sec-qfprom: Add Qualcomm secure QFPROM support.
>   soc: qcom: llcc: Refactor llcc driver to support multiple
>     configuration
>   soc: qcom: Add LLCC support for multi channel DDR
>   soc: qcom: llcc: Add QDU1000 and QRU1000 LLCC support
> 
>  .../devicetree/bindings/cache/qcom,llcc.yaml  |  10 +
>  .../bindings/nvmem/qcom,sec-qfprom.yaml       |  58 ++++
>  drivers/nvmem/Kconfig                         |  12 +
>  drivers/nvmem/Makefile                        |   2 +
>  drivers/nvmem/sec-qfprom.c                    | 116 +++++++
>  drivers/soc/qcom/Kconfig                      |   2 +
>  drivers/soc/qcom/llcc-qcom.c                  | 304 +++++++++++++-----
>  include/linux/soc/qcom/llcc-qcom.h            |   2 +-
>  8 files changed, 416 insertions(+), 90 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/nvmem/qcom,sec-qfprom.yaml
>  create mode 100644 drivers/nvmem/sec-qfprom.c
> 
> -- 
> 2.40.1
>