linux-kernel - Re: [PATCH v3 0/4] arm64: dts: exynos2200: introduce serial busses, except spi

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Message-ID: <31435f98-5701-4ae0-b822-11a99d1b2eef@gmail.com>
Date: Fri, 29 Aug 2025 13:40:06 +0300
From: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/4] arm64: dts: exynos2200: introduce serial busses,
 except spi

On 8/15/25 10:04, Ivaylo Ivanov wrote:
> Hey, folks!
>
> This patchset adds serial busses, implemented in usi, for exynos2200.
> It's missing spi, due to me having troubles with reads when testing.
> Serial_0/1 have not been included in the patchset, as it seems like
> they're encapsulated in usi blocks, but are the only implemented
> protocol and/or do not have a dedicated register for setting other
> protocols in a sysreg. That'd at least require patches in the usi
> driver and bindings to add support for.
>
> About the naming convention for usi nodes, I've chosen to keep the
> downstream one instead of relabelling all to avoid confusion when
> cross-referencing the vendor DT and to keep consistency with clock
> names. They're labelled the same in the bootloader too.

BUMP - when is this going to get merged? I had a few other things
I wanted to upstream before merge cycle.

Best regards,
Ivaylo

>
> Best regards,
> Ivaylo
>
> Changes in v3:
> - drop the serial_0/1 patch
> - add r-b tags from Sam
> - increase the size of all syscon to 0x10000 and not 0x3000
> - change description of last patch to be more meaningful regarding the
> usiN and usiN_i2c mess
> - s/usi6_i2c_cmgp/usi_i2c_cmgp6, following the TRM naming convention
>
> Changes in v2:
> - add a patch that switches address and size cells to 1 in /soc
> - adjust all new nodes to define reg props with 2 cells in total instead of 4
>
> Ivaylo Ivanov (4):
>   arm64: dts: exynos2200: fix typo in hsi2c23 bus pins label
>   arm64: dts: exynos2200: use 32-bit address space for /soc
>   arm64: dts: exynos2200: increase the size of all syscons
>   arm64: dts: exynos2200: define all usi nodes
>
>  .../boot/dts/exynos/exynos2200-pinctrl.dtsi   |    2 +-
>  arch/arm64/boot/dts/exynos/exynos2200.dtsi    | 1433 ++++++++++++++++-
>  2 files changed, 1398 insertions(+), 37 deletions(-)
>