From: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Vinod Koul <vkoul@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Manivannan Sadhasivam <mani@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com>,
Shawn Guo <shengchao.guo@oss.qualcomm.com>,
Zhangfei Gao <zhangfei.gao@oss.qualcomm.com>
Subject: Re: [PATCH 1/3] dt-bindings: phy: qcom,sa8775p-dwmac-sgmii-phy: add Nord compatible
Date: Mon, 28 Sep 2026 16:26:59 +0530 [thread overview]
Message-ID: <arpH+9ytWKFntjiz@oss.qualcomm.com> (raw)
In-Reply-To: <20260928-gregarious-deft-boar-e776ae@quoll>
On Mon, Sep 28, 2026 at 12:16:45PM +0200, Krzysztof Kozlowski wrote:
> On Wed, Sep 23, 2026 at 05:34:17AM +0530, Mohd Ayaan Anwar wrote:
> > Add the qcom,nord-dwmac-sgmii-phy compatible to the Qualcomm DWMAC
> > SGMII PHY binding.
>
> Why random order? Why not enum with existing part?
You are right. I will group the stanalone compatibles into a single enum
and sort them alphabetically in v2.
> Why not even compatible with existing device?
Nord uses the QMP v7 SerDes register layout, whereas sa8775p uses the
v5 layout. The offsets differ, so Nord cannot use
qcom,sa8775p-dwmac-sgmii-phy as a fallback compatible.
>
> So many questions, yet commit msg copies subject.
>
Sorry about that. I mentioned the QMP v7 details in the cover letter
but forgot to include them in the commit message. I will expand the
commit message in v2 to describe the hardware differences and
explain why there is no fallback compatible.
Thank you for the review.
Ayaan
next prev parent reply other threads:[~2026-09-28 10:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-23 0:04 [PATCH 0/3] phy: qcom: sgmii-eth: add Nord USXGMII support Mohd Ayaan Anwar
2026-09-23 0:04 ` [PATCH 1/3] dt-bindings: phy: qcom,sa8775p-dwmac-sgmii-phy: add Nord compatible Mohd Ayaan Anwar
2026-09-25 13:35 ` Lorenzo Bianconi
2026-09-25 13:59 ` Bartosz Golaszewski
2026-09-28 10:16 ` Krzysztof Kozlowski
2026-09-28 10:26 ` Krzysztof Kozlowski
2026-09-28 10:56 ` Mohd Ayaan Anwar [this message]
2026-09-28 11:02 ` Krzysztof Kozlowski
2026-09-23 0:04 ` [PATCH 2/3] phy: qcom: sgmii-eth: prepare for additional PHY modes Mohd Ayaan Anwar
2026-09-25 13:49 ` Lorenzo Bianconi
2026-09-23 0:04 ` [PATCH 3/3] phy: qcom: sgmii-eth: add Nord USXGMII support Mohd Ayaan Anwar
2026-09-25 13:59 ` Lorenzo Bianconi
2026-09-23 8:58 ` [PATCH 0/3] " Zhangfei Gao
2026-09-28 10:19 ` Krzysztof Kozlowski
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