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Kernel for Galaxy S24, rebased on CLO sources (WIP)
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Mario Tesi 181903fb9f drivers:iio:stm:imu:st_lsm6dsrx: manage multiple device id 
Preparing the st_lsm6dsrx driver to extend support to devices of the
same family group.
The device ID managed through the compatible string has been introduced
in order to define which device to support through the device tree.
At the moment only lsm6dsrx which supports MLC is available.

Signed-off-by: Mario Tesi <mario.tesi@st.com>
Change-Id: Ib290fc4ffafab0a89fc171b26c6bddb5cab8ce95
Reviewed-on: https://gerrit.st.com/c/linuxandroidopen/stm-ldd-iio/+/264561
Tested-by: CITOOLS <MDG-smet-aci-reviews@list.st.com>
Reviewed-by: Denis CIOCCA <denis.ciocca@st.com>
2022-09-02 18:22:31 +02:00
Documentation/devicetree/bindings/iio/stm drivers:iio:stm:imu:st_asm330lhhx: Add support to MLC/FSM 2022-08-30 19:33:25 +02:00
drivers/iio/stm drivers:iio:stm:imu:st_lsm6dsrx: manage multiple device id 2022-09-02 18:22:31 +02:00
include/linux/platform_data/stm include:linux:p_d:stm: add missing platform data file for ism303dac driver 2022-05-17 10:26:14 -07:00
stm_iio_configs drivers:iio:stm:imu:st_asm330lhhx: Add support to MLC/FSM 2022-08-30 19:33:25 +02:00
stm_iio_patches stm: add pathes for building kernel 5.15.y as WIP 2022-08-27 02:36:21 +02:00
README.md stm: README.md fix typo 2022-07-20 18:11:20 +02:00

README.md

Introduction

This repository contains STMicroelectronics MEMS IIO drivers for Linux/Android kernels.

Source code integration

From your kernel source code directory add the git remote (i.e. stmems_iio_github) for this repository:

git remote add stmems_iio_github \
               https://github.com/STMicroelectronics/st-mems-android-linux-drivers-iio.git

Fetch the just added remote:

git fetch stmems_iio_github

There are now two ways to integrate the drivers code into the kernel target branch:

  • merge (suggested strategy)
  • rebase

merge

Merge the stmems_iio_github/master with your target kernel source branch (i.e branch linux-5.4.y):

git merge --no-fork-point \
          linux-5.4.y \
          stmems_iio_github/master

rebase

Rebase the stmems_iio_github/master on top of your target kernel source branch (i.e branch linux-5.4.y):

git rebase -Xno-renames \
           --no-fork-point \
           linux-5.4.y \
           stmems_iio_github/master

Apply patches

Now that drivers code has been added to the target kernel branch, few patches needs to be added in order to:

  • add STM drivers into Kconfig & Makefile systems
  • patch IIO framework with custom events with custom events, channels and devices

Apply the patches available in the just added repository (i.e branch linux-5.4.y):

git am stm_iio_patches/5.4.y/*-stm-*.patch

Configuration

A folder named stm_iio_configs should now be available with the default configs for the supported drivers.

Modify target defconfig

Sensors defconfig can be appended to the board defconfig (i.e. if your current configuration file is arch/arm/configs/stm32_defconfig):

cat stm_iio_configs/lsm6dsm_defconfig >> arch/arm/configs/stm32_defconfig

Alternatively, it can be done at build time without altering the board config file, as follow.

Merge configuration

Driver config can be merged into current target pre-configured kernel using a script available in the kernel itself:

export ARCH=arm
export CROSS_COMPILE=arm-linux-gnu-
scripts/kconfig/merge_config.sh -n .config stm_iio_configs/lsm6dsm_defconfig