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([27.4.62.72]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82f8ec05391sm3549074b3a.56.2026.04.17.20.46.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Apr 2026 20:46:31 -0700 (PDT) From: Tabrez Ahmed To: linux@roeck-us.net Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, shuah@kernel.org, me@brighamcampbell.com, Tabrez Ahmed Subject: [PATCH v3 0/3] hwmon: (ads7871) Modernize and fix DMA safety Date: Sat, 18 Apr 2026 09:15:58 +0530 Message-ID: <20260418034601.90226-1-tabreztalks@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This series modernizes the ads7871 driver by migrating it to the hwmon_device_register_with_info() API and moving the SPI transfer buffer into the driver's private data structure to ensure it is DMA-safe. Changes in v3: - Added Patch 1 to fix a pre-existing Endianness bug in the 16-bit register read logic, flagged by Sashiko AI during v2 review. - Fixed multiple formatting and alignment issues caught by checkpatch --strict, as requested by Guenter. - Added "While at it, fix checkpatch violations" to Patch 2 commit message. Changes in v2: - Dropped custom mutex in favor of native hwmon core serialization. - Split API migration and DMA fix into separate, logical patches. - Corrected output scaling and sign extension to meet hwmon ABI. Tabrez Ahmed (3): hwmon: (ads7871) Fix endianness bug in 16-bit register reads hwmon: (ads7871) Convert to hwmon_device_register_with_info hwmon: (ads7871) Use DMA-safe buffer for SPI writes Tabrez Ahmed (3): hwmon: (ads7871) Fix endianness bug in 16-bit register reads hwmon: (ads7871) Convert to hwmon_device_register_with_info hwmon: (ads7871) Use DMA-safe buffer for SPI writes drivers/hwmon/ads7871.c | 118 +++++++++++++++++++++++----------------- 1 file changed, 68 insertions(+), 50 deletions(-) -- 2.43.0