From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 8E4704EE85B; Wed, 23 Sep 2026 14:05:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790172345; cv=none; b=j1GaZ/WuoBW1YaJ1w6OeTTJMCEMnIQfq0jG57p01b/HMK/R0VFFx4iLo84nGKw+/1swFPUq7oAkNRpBQbHNEwRHWmGG8XclA/ClCaKYovaK7X/TQgzjlvLpoBas/afSmVhWxOoXQ4Gji47h/bUV50+bor2FcK/dGF+C2URBHiwk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790172345; c=relaxed/simple; bh=TnL8zpo4Nvloq0l1vjUbEbdK+1hVErxauspUW3SM6yo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sloRrr2Sls/gP5h3/H/dHvfCW5YLJshR60esk46y+diZS4aNhEdW3fkFW4uMUx7kkKerBfh8yLXrY4pK6akMamJDOYiX+AtyAOyNCwhFG7yoC1+37QPOAmRq5x+0itL29KUJT4XJgtp3r7eswOINqN91VF5m7fka+V8OzLaKheo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HR6Q90vP; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HR6Q90vP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 696381F00898; Wed, 23 Sep 2026 14:05:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790172335; bh=woi6xHIfPsARY6TAraovKfAogTZcwZGDkQDkJXYsi7M=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=HR6Q90vPfYQYUBbKLL/si7wucgPhWMcqErv9Tj3pv1VgVq1cTUokE+larAwdj46xE M2SWCuUcSFSRSK6e3PubTLFkrnkfI7DXa+Orr2/9WquTJODWOcY6kBJ1i9gNllRvKV NNHsR0nE07Nj1fSQd6zFvRl3CJH1bVsNwi1rpkA4W40iGVMerxL8i597mi+45zbvke uzCl9hSYGcQZjznFowvizfS+Pm8bW+xP4wfinbpGFyTVCjJnhrT7v96Pn/9cLyj6gv tZ3yzy++kqdrhbORi3EhyAXJEDznOaTQ62UYR265+65YrG/Xhq11tcxVkoIAlCO8/K Si0QUVv7nnkAA== From: "Aneesh Kumar K.V (Arm)" To: linux-coco@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: "Aneesh Kumar K.V (Arm)" , Jason Gunthorpe , Catalin Marinas , Greg KH , Jeremy Linton , Jonathan Cameron , Lorenzo Pieralisi , Mark Rutland , Sudeep Holla , Sudeep Holla , Will Deacon , Steven Price , Suzuki K Poulose , Andre Przywara , Herbert Xu , Nathan Chancellor , Nicolas Schier , Olivia Mackall , Russell King , Jonathan Cameron Subject: [PATCH v13 8/8] coco: guest: arm64: Remove dummy CCA platform device Date: Wed, 23 Sep 2026 19:34:05 +0530 Message-ID: <20260923140405.1111554-9-aneesh.kumar@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260923140405.1111554-1-aneesh.kumar@kernel.org> References: <20260923140405.1111554-1-aneesh.kumar@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The SMCCC firmware driver now creates the arm_smccc bus and instantiates the CCA RSI device once the RSI ABI is discovered. The arm64-specific arm-cca-dev platform device stub is therefore no longer needed. Userspace now has /sys/firmware/cca/realm_guest as a dedicated CCA Realm guest indicator. Remove the dummy arm-cca-dev registration. Link: https://lore.kernel.org/all/4a7d84b2-2ec4-4773-a2d5-7b63d5c683cf@arm.com Reviewed-by: Jonathan Cameron Reviewed-by: Catalin Marinas Reviewed-by: Jason Gunthorpe Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Rutland Signed-off-by: Aneesh Kumar K.V (Arm) --- drivers/firmware/arm_rmm/rsi.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/firmware/arm_rmm/rsi.c b/drivers/firmware/arm_rmm/rsi.c index 29eeb90ffc6b..0fcc4e33bd92 100644 --- a/drivers/firmware/arm_rmm/rsi.c +++ b/drivers/firmware/arm_rmm/rsi.c @@ -7,7 +7,6 @@ #include #include #include -#include #include #include #include @@ -216,18 +215,3 @@ static int __init realm_sysfs_init(void) return ret; } device_initcall(realm_sysfs_init); - -static struct platform_device rsi_dev = { - .name = "arm-cca-dev", - .id = PLATFORM_DEVID_NONE -}; - -static int __init arm64_create_dummy_rsi_dev(void) -{ - if (is_realm_world() && - platform_device_register(&rsi_dev)) - pr_err("failed to register rsi platform device\n"); - return 0; -} - -arch_initcall(arm64_create_dummy_rsi_dev) -- 2.43.0