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([103.187.64.31]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7992d09ace5sm9030616b3a.53.2025.10.12.10.30.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 12 Oct 2025 10:30:50 -0700 (PDT) From: Shrikant Raskar To: jic23@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org, matt@ranostay.sg, skhan@linuxfoundation.org, david.hunter.linux@gmail.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kernel-mentees@lists.linux.dev, Shrikant Raskar Subject: [PATCH v3 0/2] iio: health: max30100: Add DT LED pulse-width support Date: Sun, 12 Oct 2025 23:00:33 +0530 Message-ID: <20251012173035.12536-1-raskar.shree97@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel-mentees@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add Device Tree support for configuring the LED pulse-width of the MAX30100 sensor, and updates the driver to read and apply this property. Testing: - Verify DT property read successfully in probe(). - Verify default fallback to 1600 us when DT property is omitted. - Confirm SPO2_CONFIG register programmed correctly using regmap_read(). - Validate different DT pulse-width values (200, 400, 800, 1600 us) are applied correctly. - Validate probe() failure for invalid LED pulse-width - Tested-on: Raspberry Pi 3B + MAX30100 breakout board Changelog: Changes from v2: - Fix DT binding schema errors - Add default value - Remove changelog from commit message - Add missing header file Shrikant Raskar (2): dt-bindings: iio: health: max30100: Add LED pulse-width property iio: health: max30100: Make LED pulse-width configurable via DT .../bindings/iio/health/maxim,max30100.yaml | 8 ++++ drivers/iio/health/max30100.c | 38 +++++++++++++++++-- 2 files changed, 43 insertions(+), 3 deletions(-) base-commit: 8bd9238e511d02831022ff0270865c54ccc482d6 -- 2.43.0