linux-kernel - Re: [PATCH v2 00/14] HSI2, UFS & UFS phy support for Tensor GS101

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Date: Thu, 25 Apr 2024 11:31:00 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: mturquette@...libre.com, sboyd@...nel.org, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, vkoul@...nel.org, kishon@...nel.org, 
	alim.akhtar@...sung.com, avri.altman@....com, bvanassche@....org, 
	s.nawrocki@...sung.com, cw00.choi@...sung.com, jejb@...ux.ibm.com, 
	martin.petersen@...cle.com, James.Bottomley@...senpartnership.com, 
	ebiggers@...nel.org, linux-scsi@...r.kernel.org, 
	linux-phy@...ts.infradead.org, devicetree@...r.kernel.org, 
	linux-clk@...r.kernel.org, linux-samsung-soc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	tudor.ambarus@...aro.org, andre.draszik@...aro.org, saravanak@...gle.com, 
	willmcvicker@...gle.com
Subject: Re: [PATCH v2 00/14] HSI2, UFS & UFS phy support for Tensor GS101

Hi Krzysztof,

On Thu, 25 Apr 2024 at 08:08, Krzysztof Kozlowski <krzk@...nel.org> wrote:
>
> On 23/04/2024 22:49, Peter Griffin wrote:
> > Hi James, Martin, Alim, Bart, Krzysztof, Vinod, all
> >
> > Firstly, many thanks to everyone who reviewed and tested v1.
> >
> > This series adds support for the High Speed Interface (HSI) 2 clock
> > management unit, UFS controller and UFS phy calibration/tuning for GS101
> > found in Pixel 6.
> >
> > With this series applied, UFS is now functional on gs101. The SKhynix
> > HN8T05BZGKX015 can be enumerated, partitions mounted etc. This allows us to
> > move away from the initramfs rootfs we have been using for development so far.
> >
> > Merge Strategy
> > 1) UFS driver/bindings via UFS/SCSI tree (James / Martin / Alim)
> > 2) GS101 DTS/DTSI should go via Krzysztofs Exynos SoC tree
> > 3) Clock driver/bindings via Clock tree (Krzysztof / Stephen)
> > 4) PHY driver/bindings via PHY tree (Vinod)
> >
> > The v2 series has been rebased on next-20240422, as such all the phy parts
> > which were already queued by Vinod have been dropped. Two new phy patches
> > are added to address review feedback received after the patches were queued.
> >
> > The series is broadly split into the following parts:
> > 1) dt-bindings documentation updates
> > 2) gs101/oriole dts & dtsi updates
> > 3) Prepatory patches for ufs-exynos driver
> > 4) GS101 ufs-exynos support
> > 5) gs101 phy fixes
> >
>
> I asked to split, otherwise please explain why PHY and UFS depends on
> DTS and clk.

Seems I misunderstood your feedback. I thought you just want me to
make clear who was merging what from the series via which tree. But
you want separate series?

1) ufs host dt bindings & driver
2) minor phy fixes series (most patches got applied already for phy)

What do you want for cmu_hsi2 clocks and dts/dtsi? The device tree
depends on the clock bindings to compile

Thanks,

Peter.