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From: "Alice Guo (OSS)" <alice.guo@oss.nxp.com>
To: gregkh@linuxfoundation.org, rafael@kernel.org,
	horia.geanta@nxp.com, aymen.sghaier@nxp.com,
	herbert@gondor.apana.org.au, davem@davemloft.net,
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Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-omap@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	linux-clk@vger.kernel.org, dmaengine@vger.kernel.org,
	dri-devel@lists.freedesktop.org,
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	linux-arm-kernel@lists.infradead.org,
	iommu@lists.linux-foundation.org, linux-media@vger.kernel.org,
	linux-mmc@vger.kernel.org, netdev@vger.kernel.org,
	linux-phy@lists.infradead.org, linux-gpio@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-staging@lists.linux.dev,
	linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org,
	linux-usb@vger.kernel.org, linux-watchdog@vger.kernel.org
Subject: [RFC v1 PATCH 2/3] caam: add defer probe when the caam driver cannot identify SoC
Date: Mon, 19 Apr 2021 12:27:21 +0800
Message-ID: <20210419042722.27554-3-alice.guo@oss.nxp.com> (raw)
In-Reply-To: <20210419042722.27554-1-alice.guo@oss.nxp.com>

From: Alice Guo <alice.guo@nxp.com>

When imx8_soc_info_driver uses module_platform_driver() to regitser
itself, the caam driver cannot identify the SoC in the machine because
the SoC driver is probed later, so that add return -EPROBE_DEFER.

Signed-off-by: Alice Guo <alice.guo@nxp.com>
---
 drivers/crypto/caam/ctrl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index ca0361b2dbb0..d08f8cc4131f 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -635,6 +635,9 @@ static int caam_probe(struct platform_device *pdev)
 	nprop = pdev->dev.of_node;
 
 	imx_soc_match = soc_device_match(caam_imx_soc_table);
+	if (IS_ERR(imx_soc_match))
+		return PTR_ERR(imx_soc_match);
+
 	caam_imx = (bool)imx_soc_match;
 
 	if (imx_soc_match) {
-- 
2.17.1


  parent reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-19  4:27 [RFC v1 PATCH 0/3] support soc_device_match to return -EPROBE_DEFER Alice Guo (OSS)
2021-04-19  4:27 ` [RFC v1 PATCH 1/3] drivers: soc: add support for soc_device_match returning -EPROBE_DEFER Alice Guo (OSS)
2021-04-19  4:49   ` Dominique MARTINET
2021-04-19  6:40     ` Alice Guo (OSS)
2021-04-19  8:20   ` Geert Uytterhoeven
2021-04-20 11:21     ` Dan Carpenter
2021-04-19  4:27 ` Alice Guo (OSS) [this message]
2021-04-19  4:27 ` [RFC v1 PATCH 3/3] driver: update all the code that use soc_device_match Alice Guo (OSS)
2021-04-19  5:02   ` Leon Romanovsky
2021-04-19  6:46     ` Alice Guo (OSS)
2021-04-19  5:02   ` Dominique MARTINET
2021-04-19  7:09     ` Alice Guo (OSS)
2021-04-19  9:03     ` Geert Uytterhoeven
2021-04-19  9:33       ` Dominique MARTINET
2021-04-19 12:16         ` Arnd Bergmann
2021-04-19 23:42           ` Dominique MARTINET
2021-04-20  9:07             ` Arnd Bergmann
2021-04-20  9:10             ` Arnd Bergmann
2021-04-19 13:36   ` Guenter Roeck
2021-04-20  9:40   ` Péter Ujfalusi

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