On Sat, 4 Dec 2021 at 23:50, Sam Protsenko <semen.protsenko@xxxxxxxxxx> wrote:
>
> Modern ARM64 Samsung Exynos SoCs (like Exynos Auto V9 and Exynos850) use
> pretty much the same High-Speed I2C controller supported in i2c-exynos5
> driver ("samsung,exynos7-hsi2c" variant), but with some differences:
> - timings are now calculated and configured a bit differently
> - two clocks are now provided to HSI2C controller (and must be
> asserted during I2C operation and register access)
>
> This patch series implements these changes, making it possible to use
> HSI2C driver on modern Exynos SoCs.
>
> Another change in mentioned SoCs is that HSI2C controller is now a part
> of USIv2 IP-core. But no USI modifications are needed in HSI2C driver,
> as all USI related configuration is done in USI driver independently.
> USI driver is added in [1] series (or its later revision, if available).
> To make HSI2C functional, both patch series (this one and [1]) have to
> be applied, but those can be applied independently.
>
> Changes in v2:
> - Added new patches renaming "hsi2c@*" nodes to "i2c@*" for Exynos
> dts's
> - Added R-b tags from v1 review
> - Fixed and improved i2c-exynos5 dt-bindings
>
> [1] https://patchwork.kernel.org/project/linux-samsung-soc/cover/20211204195757.8600-1-semen.protsenko@xxxxxxxxxx/
>
> Jaewon Kim (2):
> dt-bindings: i2c: exynos5: Add exynosautov9-hsi2c compatible
> i2c: exynos5: Add support for ExynosAutoV9 SoC
>
> Sam Protsenko (6):
> dt-bindings: i2c: exynos5: Convert to dtschema
> dt-bindings: i2c: exynos5: Add bus clock
> i2c: exynos5: Add bus clock support
> i2c: exynos5: Mention Exynos850 and ExynosAutoV9 in Kconfig
> arm: dts: exynos: Rename hsi2c nodes to i2c for Exynos5260
> arm64: dts: exynos: Rename hsi2c nodes to i2c for Exynos5433 and
> Exynos7
>
> .../devicetree/bindings/i2c/i2c-exynos5.txt | 53 -------
> .../devicetree/bindings/i2c/i2c-exynos5.yaml | 133 ++++++++++++++++++
> arch/arm/boot/dts/exynos5260.dtsi | 8 +-
> arch/arm64/boot/dts/exynos/exynos5433.dtsi | 24 ++--
> arch/arm64/boot/dts/exynos/exynos7.dtsi | 24 ++--
> drivers/i2c/busses/Kconfig | 2 +-
> drivers/i2c/busses/i2c-exynos5.c | 108 +++++++++++---
> 7 files changed, 253 insertions(+), 99 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
> create mode 100644 Documentation/devicetree/bindings/i2c/i2c-exynos5.yaml
>
> --
Please ignore this series, patch 0/8 was malformed for some reason.
I'll resend it soon, with [PATCH v2 RESEND] prefix.
> 2.30.2
>
