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Sun, 09 Aug 2026 01:05:12 -0700 (PDT) Received: from DESKTOP-TIT0J8O.dm.ae ([49.47.198.15]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-14101b7b39bsm23315598c88.14.2026.08.09.01.05.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 09 Aug 2026 01:05:12 -0700 (PDT) From: Ahmed Naseef To: linux-gpio@vger.kernel.org Cc: Ahmed Naseef , Benjamin Larsson , Christian Marangi , Conor Dooley , Krzysztof Kozlowski , Linus Walleij , Lorenzo Bianconi , Mikhail Kshevetskiy , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org Subject: [PATCH 0/3] pinctrl: airoha: add EcoNet EN7528 pin controller support Date: Sun, 9 Aug 2026 12:04:57 +0400 Message-Id: X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The EcoNet EN7528 is a MIPS SoC that uses the same pin controller and GPIO IP as the Airoha SoCs, so it reuses the shared driver code introduced by the split into per-SoC drivers. Its register layout differs from every existing variant though: all IOMUX mode bits live in a single CHIP SCU register plus a few spill-over bits in IOMUX Control 3, EJTAG has its own enable register, and every pin configuration register is at a different offset than on EN7523. It also differs in a way the shared code did not model: only GPIO0-GPIO15 are wired to the interrupt controller, while the driver assumed all AIROHA_NUM_PINS GPIOs could raise an interrupt. Patch 1 adds a num_irq_pins field to the per-SoC match data to describe that, bounds the interrupt callbacks and handler with it, and feeds it to gpiolib through gpio_irq_chip::init_valid_mask so gpiod_to_irq() fails up front for a pin that can never be an interrupt source. All existing SoCs pass AIROHA_NUM_PINS and are unaffected. Patch 2 documents the binding, patch 3 adds the driver. The series is based on linux-pinctrl/for-next, as it depends on the per-SoC driver split and on the CHIP SCU lookup by "airoha,chip-scu" phandle that landed there. Tested on a DASAN H660GM-A (EN7528, Airtel), booting OpenWrt. Ahmed Naseef (2): pinctrl: airoha: limit GPIO interrupts to interrupt-capable pins dt-bindings: pinctrl: Add EcoNet EN7528 pin controller Benjamin Larsson (1): pinctrl: airoha: add support of en7528 SoC .../pinctrl/econet,en7528-pinctrl.yaml | 190 +++ drivers/pinctrl/airoha/Kconfig | 15 +- drivers/pinctrl/airoha/Makefile | 1 + drivers/pinctrl/airoha/airoha-common.h | 3 + drivers/pinctrl/airoha/pinctrl-airoha.c | 33 +- drivers/pinctrl/airoha/pinctrl-an7563.c | 1 + drivers/pinctrl/airoha/pinctrl-an7581.c | 1 + drivers/pinctrl/airoha/pinctrl-an7583.c | 1 + drivers/pinctrl/airoha/pinctrl-en7523.c | 1 + drivers/pinctrl/airoha/pinctrl-en7528.c | 1204 +++++++++++++++++ 10 files changed, 1443 insertions(+), 7 deletions(-) create mode 100644 Documentation/devicetree/bindings/pinctrl/econet,en7528-pinctrl.yaml create mode 100644 drivers/pinctrl/airoha/pinctrl-en7528.c base-commit: 87e787e591a82b9b324aa0968795b256f789d287 -- 2.34.1