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From: Vinod Koul <vkoul@kernel.org>
To: Iskren Chernev <iskren.chernev@gmail.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>,
	Andy Gross <agross@kernel.org>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Manu Gautam <mgautam@codeaurora.org>,
	Rob Herring <robh+dt@kernel.org>,
	devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org,
	phone-devel@vger.kernel.org,
	~postmarketos/upstreaming@lists.sr.ht
Subject: Re: [PATCH v1 2/2] phy: qcom-qmp: Add support for SM6115 UFS phy
Date: Mon, 9 Aug 2021 10:18:11 +0530	[thread overview]
Message-ID: <YRCzi9tXsUVi5kHS@matsya> (raw)
In-Reply-To: <86fcdc11-9f2c-0aa0-ebab-a26fa9ac2aca@gmail.com>

On 06-08-21, 19:09, Iskren Chernev wrote:
> On 8/6/21 3:57 PM, Vinod Koul wrote:
> > On 05-08-21, 12:17, Iskren Chernev wrote:

> > why are these registers 660 specific and not V3 like we have for
> > other generations..? Quick looks with V3 regs tells me that seem
> > similar....
> >
> 
> Well, I looked at them for a long time and the only thing that is similar
> are the first few QSERDES registers from COM_ATB_SEL1=0x000 to
> COM_BIAS_EN_CLKBUFLR_EN=0x034. Everything else is different. So I can re-use

Is the offset different? I thought all Vn registers across chips do have
same offsets..

> the V3 for the similar regs, but they are 10%, so I figured instead of combing
> through all of the sequences to save 10% of the constants and make it slightly
> less readable just use new constants.
> 
> Let me know if I should reuse the 14 regs from V3.

reuse yes, but would like to understand more why offsets are different,

Can you point me to downstream code reference for this?

-- 
~Vinod

  reply	other threads:[~2021-08-09  4:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-05  9:17 [PATCH v1 0/2] Add UFS PHY support for SM6115/4250 Iskren Chernev
2021-08-05  9:17 ` [PATCH v1 1/2] dt-bindings: phy: qcom,qmp: Add SM6115 UFS PHY bindings Iskren Chernev
2021-08-13 18:38   ` Rob Herring
2021-08-05  9:17 ` [PATCH v1 2/2] phy: qcom-qmp: Add support for SM6115 UFS phy Iskren Chernev
2021-08-06 12:57   ` Vinod Koul
2021-08-06 16:09     ` Iskren Chernev
2021-08-09  4:48       ` Vinod Koul [this message]
2021-08-09 14:20         ` Iskren Chernev

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