From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 A4E8A255F26; Wed, 2 Jul 2025 11:21:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751455299; cv=none; b=E3cyBHM+oVddEgVm0P6LBaafDjJi7j2SnsiFFofmuP8w0tPrckVPnnXqLyVEbhyCgHSMECyf4iSUQOoNQ5azc4CvBD0dRcxumpNge0mFd+otbd7ZrwdnelTGc3LWtF+rd6FLfdPRm6r+wAanITUgJI2zLAUB9Dn2yS8KAiyV9WU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751455299; c=relaxed/simple; bh=1TV0LRwm4tjjlJIBEk16join8sXrFYi5VmJg1VzfVVQ=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=gdXt0xxAq2VuUwPhlkR/QEUzILf1F9Yq1YvCRr7wKCtgnakhIAWQ7Fvj28+fq+DSLyjr23uaJxzkKIa2NBuuqRoX2mOJP0d7S9ll47JOCM8jqPzx1zGQUKNYjwWZvZuzbeVD9q5EMoVnaWsAHJ0eZxzvsKeDa5SgCLDkAwCiPW8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=hWhUFKOY; arc=none smtp.client-ip=198.175.65.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="hWhUFKOY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1751455298; x=1782991298; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=1TV0LRwm4tjjlJIBEk16join8sXrFYi5VmJg1VzfVVQ=; b=hWhUFKOYgQNmw4Dd4hc0cz+U8JQFMJ0eV0i3t/MZK9F1NamWvmEJPUIE EZXKdso/PbmtXDN95I8cKZjUdn4vR0+cXjHuKYXYUi8GQADPYVOQFYgj5 IU3O9BoX5tCRtyNKRqZO9ZTY+ozGwzX2jdE2zKCjlyAsiOkh+0PBJKtrb 0PbuioQOEL2dLYkWLumCvYewgaXXbyiY2ZJ3leu6VOad10o7GGm3CJA58 JBzvWmM0Lzg0/mTET8lDcqmIdMk+it/xujIw77fIGrAa9ihb4DvNVVvNR XbIz4U22iu++x7kiY2tHeh0ulzACBUI7bTzeivDBeVU5UmA3uoBWxWKeP A==; X-CSE-ConnectionGUID: 8l0ejVCIQrSFk7AgBk0G5g== X-CSE-MsgGUID: xPbuhVzzST+NUdjTqMZi+Q== X-IronPort-AV: E=McAfee;i="6800,10657,11481"; a="53460214" X-IronPort-AV: E=Sophos;i="6.16,281,1744095600"; d="scan'208";a="53460214" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2025 04:21:37 -0700 X-CSE-ConnectionGUID: FfBaxubCQK+4AXnrF7pytA== X-CSE-MsgGUID: klyEkbgvQ+mRV2N/VG0aXg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,281,1744095600"; d="scan'208";a="184995657" Received: from cpetruta-mobl1.ger.corp.intel.com (HELO svinhufvud.fi.intel.com) ([10.245.245.162]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Jul 2025 04:21:33 -0700 Received: from svinhufvud.intel.com (syyslaukka.retiisi.eu [IPv6:::1]) by svinhufvud.fi.intel.com (Postfix) with ESMTP id 8FB9344390; Wed, 2 Jul 2025 14:21:30 +0300 (EEST) Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, hans@jjverkuil.nl, andriy.shevchenko@linux.intel.com, hdegoede@redhat.com, u.kleine-koenig@baylibre.com, ricardo.ribalda@gmail.com, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , bingbu.cao@linux.intel.com, dongcheng.yan@linux.intel.com, hao.yao@intel.com Subject: [PATCH v4 1/1] platform/x86: int3472: add hpd pin support Date: Wed, 2 Jul 2025 14:21:30 +0300 Message-Id: <20250702112130.858536-1-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Dongcheng Yan 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 Reviewed-by: Sakari Ailus Acked-by: Ilpo Järvinen Reviewed-by: Hans de Goede Signed-off-by: Sakari Ailus --- since v3: - Rebase due to commit 53eddae9af0c0b46f9c77a02d23c21c1aa824739 ("platform/x86: int3472: Move common.h to public includes, symbols to INTEL_INT3472"), moving the new GPIO PIN definition from common.h to int3472.h. The intent is to merge this via the media tree, with Ilpo's ack. drivers/platform/x86/intel/int3472/discrete.c | 6 ++++++ include/linux/platform_data/x86/int3472.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index 4c0aed6e626f..bdfb8a800c54 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -193,6 +193,10 @@ 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; @@ -223,6 +227,7 @@ 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 @@ -292,6 +297,7 @@ 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"; diff --git a/include/linux/platform_data/x86/int3472.h b/include/linux/platform_data/x86/int3472.h index 78276a11c48d..1571e9157fa5 100644 --- a/include/linux/platform_data/x86/int3472.h +++ b/include/linux/platform_data/x86/int3472.h @@ -27,6 +27,7 @@ #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 -- 2.39.5