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[98.183.112.25]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-5fced377d94sm1875193eaf.32.2025.02.20.13.30.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Feb 2025 13:30:39 -0800 (PST) Message-ID: <63e98010-860c-4d66-9cac-4f37d5e08f5c@baylibre.com> Date: Thu, 20 Feb 2025 15:30:37 -0600 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RESEND v3 07/17] iio: adc: ad7768-1: remove unnecessary locking To: Jonathan Santos , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: lars@metafoo.de, Michael.Hennerich@analog.com, marcelo.schmitt@analog.com, jic23@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, jonath4nns@gmail.com, marcelo.schmitt1@gmail.com References: Content-Language: en-US From: David Lechner In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2/12/25 12:17 PM, Jonathan Santos wrote: > The current locking is only preventing a triggered buffer Transfer and a > debugfs register access from happening at the same time. If a register > access happens during a buffered read, the action is doomed to fail anyway, > since we need to write a magic value to exit continuous read mode. > > Remove locking from the trigger handler and use > iio_device_claim_direct_mode() instead in the register access function. > > Signed-off-by: Jonathan Santos > --- Reviewed-by: David Lechner