This patch adds device tree support to the s5p-sss.c crypto driver.
Also, Documentation under devicetree/bindings added.
Signed-off-by: Naveen Krishna Ch <ch.naveen@xxxxxxxxxxx>
CC: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
CC: David S. Miller <davem@xxxxxxxxxxxxx>
CC: Vladimir Zapolskiy <vzapolskiy@xxxxxxxxx>
TO: <linux-crypto@xxxxxxxxxxxxxxx>
CC: <linux-samsung-soc@xxxxxxxxxxxxxxx>
---
Changes since v2:
1. Moved the variant struct part to the Exynos support patch
2. Changed the compatible strings to s5pv210-secss
.../devicetree/bindings/crypto/samsung-sss.txt | 20 ++++++++++++++++++++
drivers/crypto/s5p-sss.c | 10 +++++++++-
2 files changed, 29 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/crypto/samsung-sss.txt
diff --git a/Documentation/devicetree/bindings/crypto/samsung-sss.txt b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
new file mode 100644
index 0000000..2f9d7e4
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/samsung-sss.txt
@@ -0,0 +1,20 @@
+Samsung SoC SSS (Security SubSystem) module
+
+The SSS module in S5PV210 SoC supports the following:
+-- Feeder (FeedCtrl)
+-- Advanced Encryption Standard (AES)
+-- Data Encryption Standard (DES)/3DES
+-- Public Key Accelerator (PKA)
+-- SHA-1/SHA-256/MD5/HMAC (SHA-1/SHA-256/MD5)/PRNG
+-- PRNG: Pseudo Random Number Generator
+
+Required properties:
+
+- compatible : Should contain entries for this and backward compatible
+ SSS versions:
+ - "samsung,s5pv210-secss" for S5PV210 SoC.
+- reg : Offset and length of the register set for the module
+- interrupts : the interrupt-specifier for the SSS module.
+ Two interrupts "feed control and hash" in case of S5PV210
+- clocks : the required gating clock for the SSS module.
+- clock-names : the gating clock name to be requested in the SSS driver.
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 93cddeb..2da5617 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -22,6 +22,7 @@
#include <linux/scatterlist.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
+#include <linux/of.h>
#include <linux/crypto.h>
#include <linux/interrupt.h>
@@ -177,6 +178,12 @@ struct s5p_aes_dev {
static struct s5p_aes_dev *s5p_dev;
+static const struct of_device_id s5p_sss_dt_match[] = {
+ { .compatible = "samsung,s5pv210-secss", },
+ { },
+};
+MODULE_DEVICE_TABLE(of, s5p_sss_dt_match);
+
static void s5p_set_dma_indata(struct s5p_aes_dev *dev, struct scatterlist *sg)
{
SSS_WRITE(dev, FCBRDMAS, sg_dma_address(sg));
@@ -676,7 +683,8 @@ static struct platform_driver s5p_aes_crypto = {
.remove = s5p_aes_remove,
.driver = {
.owner = THIS_MODULE,
- .name = "s5p-secss",
+ .name = "s5pv210-secss",
+ .of_match_table = s5p_sss_dt_match,
},
};
--
1.7.9.5
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