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From: Can Guo <can.guo@oss.qualcomm.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: bvanassche@acm.org, beanhuo@micron.com, peter.wang@mediatek.com,
	martin.petersen@oracle.com, mani@kernel.org,
	linux-scsi@vger.kernel.org, Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Zhaoming Luo <zhml@posteo.com>,
	Ram Kumar Dwivedi <quic_rdwivedi@quicinc.com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>,
	"moderated list:ARM/Mediatek SoC support:Keyword:mediatek"
	<linux-arm-kernel@lists.infradead.org>,
	"moderated list:ARM/Mediatek SoC support:Keyword:mediatek"
	<linux-mediatek@lists.infradead.org>
Subject: Re: [PATCH v6 1/2] dt-bindings: ufs: Document static TX Equalization settings properties
Date: Tue, 9 Jun 2026 17:10:09 +0800	[thread overview]
Message-ID: <5f74ad99-87ee-4d21-ae26-80dd462d98f2@oss.qualcomm.com> (raw)
In-Reply-To: <87c9f8cf-1300-4dae-82cd-fe6427649cea@kernel.org>


On 6/9/2026 3:08 PM, Krzysztof Kozlowski wrote:
> On 31/05/2026 06:48, Can Guo wrote:
>>>>> is the minimal encoding that covers both.
>>>> Again, why do you need to encode '0'?
>>> The tuple is still needed because Precoding is configured per
>>> transmitter-receiver pair,
>>> so each lane has two independent states:
>>> - Host_TX -> Device_RX
>>> - Device_TX -> Host_RX
>>> A lane-only enabled list cannot represent directional combinations
>>> like lane0 =
>>> (on, off) vs (off, on).
>> How about we split into two properties, something like below?
>> tx-precode-enable-g6-host-lanes = <0 1>
>> tx-precode-enable-g6-device-lanes = <1>
>>
>> Only listed lanes are enabled; unlisted lanes are disabled by default.
>>
>> Are you OK with this approach?
> Yes, I do prefer this, because we don't have empty entries (<0, 0>, <0,
> 1> ....).
Thank you for coming back. Sure, I will use this format in next version.

Best Regards,
Can Guo.
>
> Best regards,
> Krzysztof



      reply	other threads:[~2026-06-09  9:10 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260529113338.984301-1-can.guo@oss.qualcomm.com>
2026-05-29 11:33 ` [PATCH v6 1/2] dt-bindings: ufs: Document static TX Equalization settings properties Can Guo
2026-05-29 16:58   ` Krzysztof Kozlowski
2026-05-30 12:45     ` Can Guo
2026-05-30 13:57       ` Can Guo
2026-05-30 17:33       ` Krzysztof Kozlowski
2026-05-31  1:41         ` Can Guo
2026-05-31  4:48           ` Can Guo
2026-06-09  7:08             ` Krzysztof Kozlowski
2026-06-09  9:10               ` Can Guo [this message]

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