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authorLinus Walleij <linus.walleij@linaro.org>2021-05-25 11:50:56 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2021-06-03 15:24:05 +0300
commit76f24b4f46b8ca380d6e2c91bd84e0e47a9f4bcd (patch)
treece0bab742d10c1d4042fac3fceaa83897a570061 /drivers/soc
parent937264905aa21655cb1142146997f211153e6e27 (diff)
downloadlinux-76f24b4f46b8ca380d6e2c91bd84e0e47a9f4bcd.tar.xz
crypto: ixp4xx - Add device tree support
This makes the IXP4xx driver probe from the device tree and retrieve the NPE and two queue manager handled used to process crypto from the device tree. As the crypto engine is topologically a part of the NPE hardware, we augment the NPE driver to spawn the crypto engine as a child. The platform data probe path is going away in due time, for now it is an isolated else clause. Cc: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/ixp4xx/ixp4xx-npe.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/soc/ixp4xx/ixp4xx-npe.c b/drivers/soc/ixp4xx/ixp4xx-npe.c
index ec90b44fa0cd..3c158251a58b 100644
--- a/drivers/soc/ixp4xx/ixp4xx-npe.c
+++ b/drivers/soc/ixp4xx/ixp4xx-npe.c
@@ -18,6 +18,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/soc/ixp4xx/npe.h>
@@ -679,6 +680,7 @@ static int ixp4xx_npe_probe(struct platform_device *pdev)
{
int i, found = 0;
struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
struct resource *res;
for (i = 0; i < NPE_COUNT; i++) {
@@ -711,6 +713,11 @@ static int ixp4xx_npe_probe(struct platform_device *pdev)
if (!found)
return -ENODEV;
+
+ /* Spawn crypto subdevice if using device tree */
+ if (IS_ENABLED(CONFIG_OF) && np)
+ devm_of_platform_populate(dev);
+
return 0;
}