linux-kernel - [PATCH v3 0/2] Add support for Xiaomi Poco F1 EBBG variant

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Message-Id: <20220806210220.31565-1-joelselvaraj.oss@gmail.com>
Date:   Sun,  7 Aug 2022 02:32:18 +0530
From:   Joel Selvaraj <joelselvaraj.oss@...il.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Joel Selvaraj <joelselvaraj.oss@...il.com>
Subject: [PATCH v3 0/2] Add support for Xiaomi Poco F1 EBBG variant

There are two variants of Xiaomi Poco F1.
- Tianma variant with NOVATEK NT36672A panel + touchscreen manufactured
  by Tianma
- EBBG variant with Focaltech FT8719 panel + touchscreen manufactured
  by EBBG

The current sdm845-xiaomi-beryllium.dts represents Tianma panel variant.

To add support for the EBBG variant, 

In the PATCH 1/2, let's
-----------------------
- Rename sdm845-xiaomi-beryllium.dts to sdm845-xiaomi-beryllium-common.dtsi
- Generalize the display panel node by assigning label, removing
compatible property and renaming the panel endpoints to be generic.
- Create a dts for the Tianma variant called
sdm845-xiaomi-beryllium-tianma.dts which will inherit the common dtsi and
set the compatible property for the respective display panel.
- Adjust the Makefile since the sdm845-xiaomi-beryllium.dts is now called
sdm845-xiaomi-beryllium-tianma.dts for the tianma variant.

In the PATCH 2/2, let's
-----------------------
- Create sdm845-xiaomi-beryllium-ebbg.dts for the EBBG variant which will
inherit the common dtsi and set the compatible property for the respective
display panel.

Changes in v3:
--------------
- Approach suggested by Marijn Suijten and Krzysztof Kozlowski to make
git handle renames more appropriately and to avoid moving large chunks of
code. Helps with reviewing the patch.
 
Changes in v2:
--------------
- Fix issue with builds breaking across multiple commits making git bisect
harder to find where the rename has happened.

Note:
-----
Both the panels are already upstreamed and the split is based on them.
There were patches earlier for both the touchscreens, but they are not
accepted in upstream yet. Once they are accepted, we will add them to
respective variants.

Joel Selvaraj (2):
  arm64: dts: qcom: split beryllium dts into common dtsi and tianma dts
  arm64: dts: qcom: sdm845-xiaomi-beryllium-ebbg: introduce Xiaomi Poco
    F1 EBBG variant

 arch/arm64/boot/dts/qcom/Makefile                      |  3 ++-
 ...ryllium.dts => sdm845-xiaomi-beryllium-common.dtsi} |  9 +++++----
 .../boot/dts/qcom/sdm845-xiaomi-beryllium-ebbg.dts     | 10 ++++++++++
 .../boot/dts/qcom/sdm845-xiaomi-beryllium-tianma.dts   | 10 ++++++++++
 4 files changed, 27 insertions(+), 5 deletions(-)
 rename arch/arm64/boot/dts/qcom/{sdm845-xiaomi-beryllium.dts => sdm845-xiaomi-beryllium-common.dtsi} (98%)
 create mode 100644 arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-ebbg.dts
 create mode 100644 arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-tianma.dts

-- 
2.37.1