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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;
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