diff mbox series

[PATCHv5,5/7] crypto: sa2ul: add device links to child devices

Message ID 20200701080553.22604-6-t-kristo@ti.com
State Superseded
Headers show
Series crypto: sa2ul driver support | expand

Commit Message

Tero Kristo July 1, 2020, 8:05 a.m. UTC 
The child devices for sa2ul (like the RNG) have hard dependency towards
the parent, they can't function without the parent enabled. Add device
link for this purpose so that the dependencies are taken care of properly.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

---
 drivers/crypto/sa2ul.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

-- 
2.17.1

--
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
diff mbox series

Patch

diff --git a/drivers/crypto/sa2ul.c b/drivers/crypto/sa2ul.c
index 6fc57d10e04a..aa080c65389e 100644
--- a/drivers/crypto/sa2ul.c
+++ b/drivers/crypto/sa2ul.c
@@ -2303,6 +2303,15 @@  static int sa_dma_init(struct sa_crypto_data *dd)
 	return ret;
 }
 
+static int sa_link_child(struct device *dev, void *data)
+{
+	struct device *parent = data;
+
+	device_link_add(dev, parent, DL_FLAG_AUTOPROBE_CONSUMER);
+
+	return 0;
+}
+
 static int sa_ul_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -2353,6 +2362,8 @@  static int sa_ul_probe(struct platform_device *pdev)
 	if (ret)
 		goto release_dma;
 
+	device_for_each_child(&pdev->dev, &pdev->dev, sa_link_child);
+
 	return 0;
 
 release_dma: