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([2406:7400:98:ade4:a008:2f74:2272:2da9]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82cf9b261absm10968518b3a.7.2026.04.04.12.03.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Apr 2026 12:03:07 -0700 (PDT) From: Vasu To: platform-driver-x86@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, andriy.shevchenko@linux.intel.com, djrscally@gmail.com, mika.westerberg@linux.intel.com, Vasu Hansalia Subject: [PATCH 2/2] platform/x86: int3472: Handle GPIO types 0x02 and 0x12 for Lunar Lake Date: Sun, 5 Apr 2026 00:32:36 +0530 Message-ID: <20260404190236.5218-2-vasuhansalia05@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260404190236.5218-1-vasuhansalia05@gmail.com> References: <20260404190236.5218-1-vasuhansalia05@gmail.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Vasu Hansalia Intel Lunar Lake platforms (Core Ultra 200V series) use two GPIO types in their INT3472 ACPI tables that are not handled by the discrete driver: - Type 0x02: Strobe GPIO, used for IR LED/flash control. Map to sensor. - Type 0x12: AVDD/sensor-supply GPIO, used on Lunar Lake to control sensor power. Treat like RESET/POWERDOWN and map to sensor. Without these handlers the driver logs: int3472-discrete INT3472:00: GPIO type 0x02 unknown; the sensor may not work int3472-discrete INT3472:00: GPIO type 0x12 unknown; the sensor may not work Type 0x12 handling was confirmed by inspecting the OEM kernel module for Ubuntu 24.04 (6.11.0-1016-oem) which handles this type by mapping it directly to the sensor via skl_int3472_fill_gpiod_lookup(). Tested on: Dell Pro 14 Premium PA14250, Intel Core Ultra 7 266V (Lunar Lake), Ubuntu 24.04, kernel 6.11.0-1016-oem Camera confirmed working at 1280x720 30fps after fix. Signed-off-by: Vasu Hansalia --- --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -239,6 +239,7 @@ switch (type) { case INT3472_GPIO_TYPE_RESET: case INT3472_GPIO_TYPE_POWERDOWN: + case 0x12: /* Lunar Lake AVDD/sensor-supply GPIO */ ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, func, polarity); if (ret) err_msg = "Failed to map GPIO pin to sensor\n"; @@ -278,6 +279,12 @@ break; } break; + case 0x02: + /* Strobe GPIO - used for IR LED/flash, map to sensor */ + ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, func, polarity); + if (ret) + err_msg = "Failed to map strobe GPIO to sensor\n"; + break; default: dev_warn(int3472->dev, "GPIO type 0x%02x unknown; the sensor may not work\n",