[PATCH v3 09/17] crypto: talitos - Add a feature to tag SEC1
From: Christophe Leroy <hidden>
Date: 2015-04-17 14:32:15
Also in:
linux-crypto, lkml
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
We add a new feature in the features field, to mark compatible "fsl,sec1.0" We also define a helper function called has_ftr_sec1() to help functions quickly determine if they are running on SEC1 or SEC2+. When only SEC1 or SEC2 is compiled in, has_ftr_sec1() return trivial corresponding value. If both are compiled in, feature field is checked. Signed-off-by: Christophe Leroy <redacted> --- drivers/crypto/talitos.c | 3 +++ drivers/crypto/talitos.h | 17 +++++++++++++++++ 2 files changed, 20 insertions(+)
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index bca6ded..db95023 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c@@ -2709,6 +2709,9 @@ static int talitos_probe(struct platform_device *ofdev) TALITOS_FTR_SHA224_HWINIT | TALITOS_FTR_HMAC_OK; + if (of_device_is_compatible(np, "fsl,sec1.0")) + priv->features |= TALITOS_FTR_SEC1; + priv->chan = kzalloc(sizeof(struct talitos_channel) * priv->num_channels, GFP_KERNEL); if (!priv->chan) {
diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h
index f078da1..b0bdb4e 100644
--- a/drivers/crypto/talitos.h
+++ b/drivers/crypto/talitos.h@@ -156,6 +156,23 @@ extern int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc, #define TALITOS_FTR_HW_AUTH_CHECK 0x00000002 #define TALITOS_FTR_SHA224_HWINIT 0x00000004 #define TALITOS_FTR_HMAC_OK 0x00000008 +#define TALITOS_FTR_SEC1 0x00000010 + +/* + * If both CONFIG_CRYPTO_DEV_TALITOS1 and CONFIG_CRYPTO_DEV_TALITOS2 are + * defined, we check the features which are set according to the device tree. + * Otherwise, we answer true or false directly + */ +static inline bool has_ftr_sec1(struct talitos_private *priv) +{ +#if defined(CONFIG_CRYPTO_DEV_TALITOS1) && defined(CONFIG_CRYPTO_DEV_TALITOS2) + return priv->features & TALITOS_FTR_SEC1 ? true : false; +#elif defined(CONFIG_CRYPTO_DEV_TALITOS1) + return true; +#else + return false; +#endif +} /* * TALITOS_xxx_LO addresses point to the low data bits (32-63) of the register
--
2.1.0