From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 E2F8644B687 for ; Wed, 27 May 2026 17:09:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779901780; cv=none; b=rMxaJjiUeGDSOSYbIpHhN2gBqeiqYd29uiCF/PSzowSY9/2XpZLCm6g1AU3u2NJ6vGU4GTYX49i6Fu/EgzvrYfQ4VkD8zaJ3A1Za0ugIYETgMAzU/eKOpuNGLJ/LhrAnpXfxce5G0bN8UqdypUYCgIc2IuwtvClKbFWDuhI8vho= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779901780; c=relaxed/simple; bh=Y+dcXZL4sDmeH6/gm5Jck71THZDYdbyDB0TgIc6C7bc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sDmuJbba+2MrokmlolvM4oX10sPjWy8a8SoIrLyInAeAF3plwqFjvWmjjg5zPjYWNfAE8shSnhWXbEIha9Qt6gWJkmIwpCfIEzjKf6Qta0464Bmf/fimz96bPTBpDkAYddudfdpvxdtI2hB0k1s3N/UgxYcKVg0OFnump/YnI+o= 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=hz7o91xL; arc=none smtp.client-ip=192.198.163.9 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="hz7o91xL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1779901779; x=1811437779; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Y+dcXZL4sDmeH6/gm5Jck71THZDYdbyDB0TgIc6C7bc=; b=hz7o91xL9d7IEBco+qPwIX1NO0zQFhWbDxvvXHTyBHiJyiz0+zjWgFjU 42SvyVu28rCfruRxbzHZeVkk7JAjV3zGCTWcTGHVdBo8GSi8ynBWKTZ9a FNJhcNjbBp4rbT8DYv/R6sD5FTQPWeIFH4gO+FUN128Kmzla5PIBbWaaj swDOL8USQc+BiziywgXvODhS7DKLBqHVtpnIdgnM9iTpNO2VTiTStTTQR V0W/j+BBlL/JehOfj34shlzo1XQGS7RiHHI8tBcRi8f6f7uHyNEaJncAt e1xJOnnzEMJLSvvx+e+kBw97PfreYJHnVOBz33iWeqozknxNDtfzvH1Vf w==; X-CSE-ConnectionGUID: IgxqFQRqSk6I4tfLWrKDXA== X-CSE-MsgGUID: 3+Tvke4SQdWkPTfxtuhw0w== X-IronPort-AV: E=McAfee;i="6800,10657,11799"; a="91428429" X-IronPort-AV: E=Sophos;i="6.24,171,1774335600"; d="scan'208";a="91428429" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 May 2026 10:09:38 -0700 X-CSE-ConnectionGUID: dQ2B8vrQQlGuDL5wXBGGgg== X-CSE-MsgGUID: 2mVkInspQH2Ka6vQS67nuQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,171,1774335600"; d="scan'208";a="244122879" Received: from ubuntu.jf.intel.com ([10.54.60.90]) by fmviesa004.fm.intel.com with ESMTP; 27 May 2026 10:09:37 -0700 From: Miguel Vadillo To: linux-media@vger.kernel.org Cc: wei.a.xu@intel.com, atul.raut@intel.com, sakari.ailus@linux.intel.com, antti.laakso@linux.intel.com, mehdi.djait@linux.intel.com, kieran.bingham@ideasonboard.com, miguel.vadillo@intel.com Subject: [PATCH v5 3/3] ACPI: scan: Honor _DEP for Intel CVS devices Date: Wed, 27 May 2026 10:05:31 -0700 Message-ID: <20260527170531.383871-4-miguel.vadillo@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260527170531.383871-1-miguel.vadillo@intel.com> References: <20260527170531.383871-1-miguel.vadillo@intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit CVS (Computer Vision Sensing) is an ACPI-enumerated device that sits inline in the CSI-2 path between the camera sensor and Intel IPU. On platforms where CVS is present, the camera sensor's ACPI node declares a _DEP dependency on the CVS device. The CVS driver must be fully initialized before camera sensor drivers probe, because CVS controls the CSI-2 link ownership handshake (via GPIO REQ/RESP), the MIPI/CSI-2 lane configuration, and the camera power domain. Without CVS ready, the sensor driver can bind but the CSI-2 stream will not function correctly. The CVS driver calls acpi_dev_clear_dependencies() at the end of its probe() to unblock waiting consumers once it is ready. Move the CVS HIDs from acpi_ignore_dep_ids[] to acpi_honor_dep_ids[] so that camera sensor enumeration is deferred until the CVS driver has finished probing, matching the behavior already in place for IVSC. Signed-off-by: Miguel Vadillo --- drivers/acpi/scan.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index e8cdbdb46fdb..c09232253046 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -848,8 +848,6 @@ static bool acpi_info_matches_ids(struct acpi_device_info *info, static const char * const acpi_ignore_dep_ids[] = { "PNP0D80", /* Windows-compatible System Power Management Controller */ "INT33BD", /* Intel Baytrail Mailbox Device */ - "INTC10DE", /* Intel CVS LNL */ - "INTC10E0", /* Intel CVS ARL */ "LATT2021", /* Lattice FW Update Client Driver */ NULL }; @@ -861,6 +859,9 @@ static const char * const acpi_honor_dep_ids[] = { "INTC1095", /* IVSC (ADL) driver must be loaded to allow i2c access to camera sensors */ "INTC100A", /* IVSC (RPL) driver must be loaded to allow i2c access to camera sensors */ "INTC10CF", /* IVSC (MTL) driver must be loaded to allow i2c access to camera sensors */ + "INTC10DE", /* CVS (LNL) driver must be loaded to allow camera streaming */ + "INTC10E0", /* CVS (ARL) driver must be loaded to allow camera streaming */ + "INTC10E1", /* CVS (PTL) driver must be loaded to allow camera streaming */ "RSCV0001", /* RISC-V PLIC */ "RSCV0002", /* RISC-V APLIC */ "RSCV0005", /* RISC-V SBI MPXY MBOX */ -- 2.43.0