From patchwork Fri Apr 25 10:43:30 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongcheng Yan X-Patchwork-Id: 884671 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89E8D258CD0; Fri, 25 Apr 2025 10:43:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745577825; cv=none; b=dQCUdklkc8i7FXREC3xvIsA0rsh1EsvwPGhSTn9K8c6t2bjEHwEf68ssT0kjInYBqqZ1tW3REoNmB3L1iXTFRpIHMgN+RN4Rt5gd42Xx7axt9H59OyoSchli/KSzKV3xK8l1Pd+HaCUsYrOPsN1NJQdVK/R+yyS1LDFyygPyVfI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745577825; c=relaxed/simple; bh=9j/wZiHV5GzB0EfuonP75IoTOMcnn5LfyjX7W37NjdI=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=NuCPAS/5DqIHUXiX/qfAjhiz0yV7NnzL0a4PjOO1GrtrEOZKezc/u/8AysrMCRcPwvVUrGRnFV+fzWFnf1YDnupT5yk8u5OYkoZiVLlr1CIgD91Q3+TZ1ix3k1b5us8K4h9/pTHZu4jRCduLA/mrlsbedORRJzthGLsgK+74qM4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=XAnqGwdz; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="XAnqGwdz" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1745577823; x=1777113823; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=9j/wZiHV5GzB0EfuonP75IoTOMcnn5LfyjX7W37NjdI=; b=XAnqGwdzQU0RnPw/1DN90a5SxA+6zDLPUCC9+FK0yAOB/kk/2+PshS/+ HnhAyJQtYtNBEDjcPG7OBmxxCwrMv/7/DmAxoLFI5lrXDYuaPEs9yYlQ8 CBpdFHpMGwYZCE/wJZSN1yTma1XI/IG60muhigH4WXLBjVg0/MF4RpvG4 chBo6iYLdG6tI/LO2VsMBbNPLUOkCPOd5G1jWKErMj0RBk5Wd/2aAyL6C JNOfTM+8x3M9LDF6RCcSaOEXUND9PanYvuqSQzC3Sjeg0TxlnOpDq9bOn GXMyGaib0oZj+avzL8uktd318Y2wDsv5th2NdpBXF4j8FIHEGoye1l1TB Q==; X-CSE-ConnectionGUID: HLPZdsUzR8KSomo4xBZtJw== X-CSE-MsgGUID: m5n3ygvUR0G8Bz6dIhkwgg== X-IronPort-AV: E=McAfee;i="6700,10204,11413"; a="47147111" X-IronPort-AV: E=Sophos;i="6.15,238,1739865600"; d="scan'208";a="47147111" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2025 03:43:43 -0700 X-CSE-ConnectionGUID: UvTASx3WQpmTJjbrrS9Jdg== X-CSE-MsgGUID: a4PZVrw0SYaZakpCKUX1DA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,238,1739865600"; d="scan'208";a="132617973" Received: from bjledic266.bj.intel.com ([172.16.127.175]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2025 03:43:40 -0700 From: Dongcheng Yan To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, hverkuil@xs4all.nl, andriy.shevchenko@linux.intel.com, hdegoede@redhat.com, u.kleine-koenig@baylibre.com, ricardo.ribalda@gmail.com, bingbu.cao@linux.intel.com Cc: stable@vger.kernel.org, dongcheng.yan@linux.intel.com, hao.yao@intel.com Subject: [PATCH v3 1/2] platform/x86: int3472: add hpd pin support Date: Fri, 25 Apr 2025 18:43:30 +0800 Message-Id: <20250425104331.3165876-1-dongcheng.yan@intel.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Typically HDMI to MIPI CSI-2 bridges have a pin to signal image data is being received. On the host side this is wired to a GPIO for polling or interrupts. This includes the Lontium HDMI to MIPI CSI-2 bridges lt6911uxe and lt6911uxc. The GPIO "hpd" is used already by other HDMI to CSI-2 bridges, use it here as well. Signed-off-by: Dongcheng Yan --- drivers/platform/x86/intel/int3472/common.h | 1 + drivers/platform/x86/intel/int3472/discrete.c | 6 ++++++ 2 files changed, 7 insertions(+) base-commit: 4d1e8c8f11c611db5828e4bae7292bc295eea8ef diff --git a/drivers/platform/x86/intel/int3472/common.h b/drivers/platform/x86/intel/int3472/common.h index 51b818e62a25..4593d567caf4 100644 --- a/drivers/platform/x86/intel/int3472/common.h +++ b/drivers/platform/x86/intel/int3472/common.h @@ -23,6 +23,7 @@ #define INT3472_GPIO_TYPE_CLK_ENABLE 0x0c #define INT3472_GPIO_TYPE_PRIVACY_LED 0x0d #define INT3472_GPIO_TYPE_HANDSHAKE 0x12 +#define INT3472_GPIO_TYPE_HOTPLUG_DETECT 0x13 #define INT3472_PDEV_MAX_NAME_LEN 23 #define INT3472_MAX_SENSOR_GPIOS 3 diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index 394975f55d64..efa3bc7af193 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -191,6 +191,10 @@ static void int3472_get_con_id_and_polarity(struct int3472_discrete_device *int3 *con_id = "privacy-led"; *gpio_flags = GPIO_ACTIVE_HIGH; break; + case INT3472_GPIO_TYPE_HOTPLUG_DETECT: + *con_id = "hpd"; + *gpio_flags = GPIO_ACTIVE_HIGH; + break; case INT3472_GPIO_TYPE_POWER_ENABLE: *con_id = "avdd"; *gpio_flags = GPIO_ACTIVE_HIGH; @@ -221,6 +225,7 @@ static void int3472_get_con_id_and_polarity(struct int3472_discrete_device *int3 * 0x0b Power enable * 0x0c Clock enable * 0x0d Privacy LED + * 0x13 Hotplug detect * * There are some known platform specific quirks where that does not quite * hold up; for example where a pin with type 0x01 (Power down) is mapped to @@ -290,6 +295,7 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares, switch (type) { case INT3472_GPIO_TYPE_RESET: case INT3472_GPIO_TYPE_POWERDOWN: + case INT3472_GPIO_TYPE_HOTPLUG_DETECT: ret = skl_int3472_map_gpio_to_sensor(int3472, agpio, con_id, gpio_flags); if (ret) err_msg = "Failed to map GPIO pin to sensor\n"; From patchwork Fri Apr 25 10:43:31 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongcheng Yan X-Patchwork-Id: 885205 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D4BE1259C91; 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a="47147124" X-IronPort-AV: E=Sophos;i="6.15,238,1739865600"; d="scan'208";a="47147124" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2025 03:43:47 -0700 X-CSE-ConnectionGUID: eSFWTV22QW2n5CkDVYI6OA== X-CSE-MsgGUID: HbIiFnCrTsedU3vg8BTd0A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,238,1739865600"; d="scan'208";a="132617996" Received: from bjledic266.bj.intel.com ([172.16.127.175]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Apr 2025 03:43:44 -0700 From: Dongcheng Yan To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, hverkuil@xs4all.nl, andriy.shevchenko@linux.intel.com, hdegoede@redhat.com, u.kleine-koenig@baylibre.com, ricardo.ribalda@gmail.com, bingbu.cao@linux.intel.com Cc: stable@vger.kernel.org, dongcheng.yan@linux.intel.com, hao.yao@intel.com Subject: [PATCH v3 2/2] media: i2c: change lt6911uxe irq_gpio name to "hpd" Date: Fri, 25 Apr 2025 18:43:31 +0800 Message-Id: <20250425104331.3165876-2-dongcheng.yan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250425104331.3165876-1-dongcheng.yan@intel.com> References: <20250425104331.3165876-1-dongcheng.yan@intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Lt6911uxe is used in IPU6 / x86 platform, worked with an out-of-tree int3472 patch and upstream intel/ipu6 before. It is only used on ACPI platforms till now and there are no devicetree bindings for this driver. The upstream int3472 driver uses "hpd" instead of "readystat" now. this patch updates the irq_gpio name to "hpd" accordingly, so that mere users can now use the upstream version directly without relying on out-of-tree int3472 pin support. The new name "hpd" (Hotplug Detect) aligns with common naming conventions used in other drivers(like adv7604) and documentation. Fixes: e49563c3be09d4 ("media: i2c: add lt6911uxe hdmi bridge driver") Cc: stable@vger.kernel.org Signed-off-by: Dongcheng Yan --- drivers/media/i2c/lt6911uxe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/i2c/lt6911uxe.c b/drivers/media/i2c/lt6911uxe.c index c5b40bb58a37..24857d683fcf 100644 --- a/drivers/media/i2c/lt6911uxe.c +++ b/drivers/media/i2c/lt6911uxe.c @@ -605,10 +605,10 @@ static int lt6911uxe_probe(struct i2c_client *client) return dev_err_probe(dev, PTR_ERR(lt6911uxe->reset_gpio), "failed to get reset gpio\n"); - lt6911uxe->irq_gpio = devm_gpiod_get(dev, "readystat", GPIOD_IN); + lt6911uxe->irq_gpio = devm_gpiod_get(dev, "hpd", GPIOD_IN); if (IS_ERR(lt6911uxe->irq_gpio)) return dev_err_probe(dev, PTR_ERR(lt6911uxe->irq_gpio), - "failed to get ready_stat gpio\n"); + "failed to get hpd gpio\n"); ret = lt6911uxe_fwnode_parse(lt6911uxe, dev); if (ret)