linux-kernel - Re: [PATCH v2 00/13] spi: cadence-qspi: Add Renesas RZ/N1 support

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Message-ID: <87sebzqmjq.fsf@bootlin.com>
Date: Wed, 21 Jan 2026 11:37:13 +0100
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Santhosh Kumar K <s-k6@...com>
Cc: "Mark Brown" <broonie@...nel.org>,  Rob Herring <robh@...nel.org>,
  "Krzysztof Kozlowski" <krzk+dt@...nel.org>,  Conor Dooley
 <conor+dt@...nel.org>,  "Geert Uytterhoeven" <geert+renesas@...der.be>,
  Magnus Damm <magnus.damm@...il.com>,  Vaishnav Achath
 <vaishnav.a@...com>,  Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
  Hervé Codina <herve.codina@...tlin.com>,  Wolfram Sang
 <wsa+renesas@...g-engineering.com>,  Vignesh Raghavendra
 <vigneshr@...com>,  Pratyush Yadav <pratyush@...nel.org>,  Pascal Eberhard
 <pascal.eberhard@...com>,  <linux-spi@...r.kernel.org>,
  <devicetree@...r.kernel.org>,  <linux-kernel@...r.kernel.org>,
  <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v2 00/13] spi: cadence-qspi: Add Renesas RZ/N1 support

Hello,

>> Thank you for the series! Tested it on TI's AM62A SK with
>> OSPI NAND (Winbond's W35N01JW).
>>
>> Controller fails to probe with the following message:
>>
>> [    1.868863] cadence-qspi fc40000.spi: Cannot claim mandatory QSPI ref
>> clock.
>
> Strange, I was nonetheless careful not to change the existing
> behaviour on other SoCs. I have that board, I will give it a try.

I made a mistake with the clk_bulk_* API data indeed. probe now succeeds
with both my custom board and the AM62a7 LP SK. v3 coming soon.

Thanks,
Miquèl