diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/804-crypto-0031-crypto-caam-add-caam_dma-device-on-caam_probe.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/804-crypto-0031-crypto-caam-add-caam_dma-device-on-caam_probe.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/804-crypto-0031-crypto-caam-add-caam_dma-device-on-caam_probe.patch b/target/linux/layerscape/patches-5.4/804-crypto-0031-crypto-caam-add-caam_dma-device-on-caam_probe.patch new file mode 100644 index 0000000000..1dca71c064 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/804-crypto-0031-crypto-caam-add-caam_dma-device-on-caam_probe.patch @@ -0,0 +1,67 @@ +From 0547020c73ab7a457f3e1601ef822b61f0b963b9 Mon Sep 17 00:00:00 2001 +From: Radu Alexe <radu.alexe@nxp.com> +Date: Wed, 8 Nov 2017 17:22:12 +0200 +Subject: [PATCH] crypto: caam - add caam_dma device on caam_probe +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Dynamically create a platform device for the caam_dma driver +at caam_probe() time. + +Signed-off-by: Radu Alexe <radu.alexe@nxp.com> +Signed-off-by: Horia Geantă <horia.geanta@nxp.com> + +Use devres for caam_dma platform device unregistering. + +Signed-off-by: Horia Geantă <horia.geanta@nxp.com> +--- + drivers/crypto/caam/ctrl.c | 24 ++++++++++++++++++++++++ + 1 file changed, 24 insertions(+) + +--- a/drivers/crypto/caam/ctrl.c ++++ b/drivers/crypto/caam/ctrl.c +@@ -566,12 +566,22 @@ static void caam_remove_debugfs(void *ro + } + #endif + ++static void caam_dma_dev_unregister(void *data) ++{ ++ platform_device_unregister(data); ++} ++ + /* Probe routine for CAAM top (controller) level */ + static int caam_probe(struct platform_device *pdev) + { + int ret, ring, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN; + u64 caam_id; + const struct soc_device_attribute *imx_soc_match; ++ static struct platform_device_info caam_dma_pdev_info = { ++ .name = "caam-dma", ++ .id = PLATFORM_DEVID_NONE ++ }; ++ static struct platform_device *caam_dma_dev; + struct device *dev; + struct device_node *nprop, *np; + struct resource res_regs; +@@ -849,6 +859,20 @@ set_dma_mask: + return -ENOMEM; + } + ++ caam_dma_pdev_info.parent = dev; ++ caam_dma_pdev_info.dma_mask = dma_get_mask(dev); ++ caam_dma_dev = platform_device_register_full(&caam_dma_pdev_info); ++ if (IS_ERR(caam_dma_dev)) { ++ dev_err(dev, "Unable to create and register caam-dma dev\n"); ++ return PTR_ERR(caam_dma_dev); ++ } else { ++ set_dma_ops(&caam_dma_dev->dev, get_dma_ops(dev)); ++ ret = devm_add_action_or_reset(dev, caam_dma_dev_unregister, ++ caam_dma_dev); ++ if (ret) ++ return ret; ++ } ++ + if (!reg_access) + goto report_live; + |