[RFC v1 PATCH 2/3] caam: add defer probe when the caam driver cannot identify SoC
From: Alice Guo (OSS) <hidden>
Date: 2021-04-19 04:28:39
Also in:
dmaengine, dri-devel, linux-amlogic, linux-clk, linux-crypto, linux-gpio, linux-iommu, linux-media, linux-mediatek, linux-mmc, linux-omap, linux-phy, linux-pm, linux-renesas-soc, linux-staging, linux-usb, linux-watchdog, linuxppc-dev, lkml
Subsystem:
crypto api, freescale caam (cryptographic acceleration and assurance module) driver, the rest · Maintainers:
Herbert Xu, "David S. Miller", Horia Geantă, Pankaj Gupta, Gaurav Jain, Linus Torvalds
From: Alice Guo <redacted> 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 <redacted> --- 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