From patchwork Tue Oct 24 21:17:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= X-Patchwork-Id: 737769 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 1FD401D692; Tue, 24 Oct 2023 21:18:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="ka/ZKhFp" Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C23BD10CF; Tue, 24 Oct 2023 14:18:24 -0700 (PDT) Received: from notapiano.myfiosgateway.com (unknown [IPv6:2600:4041:5b1a:cd00:524d:e95d:1a9c:492a]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madras.collabora.co.uk (Postfix) with ESMTPSA id E8CF66607333; Tue, 24 Oct 2023 22:18:21 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1698182303; bh=YRq5099l8oQL4Fdgmj24/WWMHCqsGt/HPtK1ssRTRao=; h=From:To:Cc:Subject:Date:From; b=ka/ZKhFp5M0+/HZbpCsb/pNnyzTib5pwvFEwqEMBcLpZKQeZl3X5l65mXPgALnchS VNbg51Rugu1nhqbFGtYnMItn2Ejb7TtMvzMF2QflQezH3EN7NYYkYtsbBOY+8fSa9t 0nI1rqJNFcb3KDmnaBjK+3XaTkoHpOdKjlf3QguMmTba+Tnv8p+isVAZNP/kWI4n1V t6fYkZQTThb+ISVq44KhCtxSKW9v5UIMLtgAYRsk7xlS03QUdMOQQ929+W+yAY5/Te 7Wnn4TVona2qfx9AlnFmBPk+MXH9BnhPe0DCKIWV3znm5faqxttQ8Q62xOkO+AmUp0 2MGixT6kVYbjg== From: =?utf-8?b?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= To: Shuah Khan , Greg Kroah-Hartman , Bjorn Helgaas Cc: devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-usb@vger.kernel.org, Rob Herring , linux-kselftest@vger.kernel.org, kernel@collabora.com, =?utf-8?b?TsOtY29s?= =?utf-8?b?YXMgRi4gUi4gQS4gUHJhZG8=?= , linux-kernel@vger.kernel.org Subject: [RFC PATCH 0/2] Add test to verify probe of devices from discoverable busses on DT platforms Date: Tue, 24 Oct 2023 17:17:58 -0400 Message-ID: <20231024211818.365844-1-nfraprado@collabora.com> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This is part of an effort to improve detection of regressions impacting device probe on all platforms. The recently merged DT kselftest [1] detects probe issues for all devices described statically in the DT. That leaves out devices discovered at run-time from discoverable busses. This is where this test comes in. All of the devices that are connected through discoverable busses (ie USB and PCI), and which are internal and therefore always present, can be described in a per-platform file so they can be checked for. The test will check that the device has been instantiated and bound to a driver. Patch 1 introduces the test. Patch 2 adds the test definitions for the google,spherion machine (Acer Chromebook 514) as an example. This is the sample output from the test running on Spherion: TAP version 13 Using board file: boards/google,spherion 1..10 ok 1 usb.camera.0.device ok 2 usb.camera.0.driver ok 3 usb.camera.1.device ok 4 usb.camera.1.driver ok 5 usb.bluetooth.0.device ok 6 usb.bluetooth.0.driver ok 7 usb.bluetooth.1.device ok 8 usb.bluetooth.1.driver ok 9 pci.wifi.device ok 10 pci.wifi.driver Totals: pass:10 fail:0 xfail:0 xpass:0 skip:0 error:0 [1] https://lore.kernel.org/all/20230828211424.2964562-1-nfraprado@collabora.com/ Nícolas F. R. A. Prado (2): kselftest: Add test to verify probe of devices from discoverable busses kselftest: devices: Add board file for google,spherion tools/testing/selftests/Makefile | 1 + tools/testing/selftests/devices/.gitignore | 1 + tools/testing/selftests/devices/Makefile | 8 + .../selftests/devices/boards/google,spherion | 3 + .../devices/test_discoverable_devices.sh | 165 ++++++++++++++++++ 5 files changed, 178 insertions(+) create mode 100644 tools/testing/selftests/devices/.gitignore create mode 100644 tools/testing/selftests/devices/Makefile create mode 100644 tools/testing/selftests/devices/boards/google,spherion create mode 100755 tools/testing/selftests/devices/test_discoverable_devices.sh