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Thu, 29 Apr 2021 14:02:28 +0000 From: "Alice Guo (OSS)" To: shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, horia.geanta@nxp.com, aymen.sghaier@nxp.com, herbert@gondor.apana.org.au, davem@davemloft.net, dominique.martinet@atmark-techno.com Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org Subject: [PATCH v1 1/2] caam: imx8m: fix the built-in caam driver cannot match soc_id Date: Thu, 29 Apr 2021 22:02:49 +0800 Message-Id: <20210429140250.2321-1-alice.guo@oss.nxp.com> X-Mailer: git-send-email 2.17.1 X-Originating-IP: [119.31.174.71] X-ClientProxiedBy: AM0PR02CA0206.eurprd02.prod.outlook.com (2603:10a6:20b:28f::13) To AM6PR04MB6053.eurprd04.prod.outlook.com (2603:10a6:20b:b9::10) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from nxf55104-OptiPlex-7060.ap.freescale.net (119.31.174.71) by AM0PR02CA0206.eurprd02.prod.outlook.com (2603:10a6:20b:28f::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4087.27 via Frontend Transport; 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For i.MX8M, soc_device_match returning NULL can be considered that the SoC device has not been probed yet, so it returns -EPROBE_DEFER directly. Fixes: 7d981405d0fd ("soc: imx8m: change to use platform driver") Signed-off-by: Alice Guo Tested-by: Dominique Martinet Tested-by: Frieder Schrempf --- drivers/crypto/caam/ctrl.c | 10 ++++++++++ 1 file changed, 10 insertions(+) -- 2.17.1 diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index ca0361b2dbb0..9bba3b93cf35 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -79,6 +79,14 @@ static void build_deinstantiation_desc(u32 *desc, int handle) append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT); } +static const struct of_device_id imx8m_machine_match[] = { + { .compatible = "fsl,imx8mm", }, + { .compatible = "fsl,imx8mn", }, + { .compatible = "fsl,imx8mp", }, + { .compatible = "fsl,imx8mq", }, + { } +}; + /* * run_descriptor_deco0 - runs a descriptor on DECO0, under direct control of * the software (no JR/QI used). @@ -635,6 +643,8 @@ static int caam_probe(struct platform_device *pdev) nprop = pdev->dev.of_node; imx_soc_match = soc_device_match(caam_imx_soc_table); + if (!imx_soc_match && of_match_node(imx8m_machine_match, of_root)) + return -EPROBE_DEFER; caam_imx = (bool)imx_soc_match; if (imx_soc_match) {