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Sat, 31 Jan 2026 07:58:54 -0800 (PST) Message-ID: Date: Sat, 31 Jan 2026 17:58:53 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 10/19] nvmem: microchip-otpc: Avoid reading a write-only register To: Alexander Dahl Cc: Nicolas Ferre , Alexandre Belloni , Ryan Wanner , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, stable@vger.kernel.org, Srinivas Kandagatla , Greg Kroah-Hartman References: <20260120143759.904013-1-ada@thorsis.com> <20260120154502.1280938-1-ada@thorsis.com> <20260120154502.1280938-4-ada@thorsis.com> Content-Language: en-US From: Claudiu Beznea In-Reply-To: <20260120154502.1280938-4-ada@thorsis.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/20/26 17:44, Alexander Dahl wrote: > The OTPC Control Register (OTPC_CR) has just write-only members. > Reading from that register leads to a warning in OTPC Write Protection > Status Register (OTPC_WPSR) in field Software Error Type (SWETYP) of > type READ_WO (A write-only register has been read (warning).) > > Just create the register write content from scratch is sufficient here. > > Fixes: 98830350d3fc ("nvmem: microchip-otpc: add support") > Cc:stable@vger.kernel.org > Signed-off-by: Alexander Dahl Reviewed-by: Claudiu Beznea