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| author | Jamie Iles <jamie@jamieiles.com> | 2011-08-01 17:25:19 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-08-10 19:00:26 +0800 |
| commit | 30343ef1de348cd21cd7d0cebde3c0175b730e0b (patch) | |
| tree | f70c2ba846c1f664a7be2e1f2d9b39d4c83c6996 /drivers/crypto | |
| parent | 4efae8c9363e28892eaaf2a6463f2f5f255e6fb0 (diff) | |
| download | linux-30343ef1de348cd21cd7d0cebde3c0175b730e0b.tar.gz linux-30343ef1de348cd21cd7d0cebde3c0175b730e0b.tar.bz2 linux-30343ef1de348cd21cd7d0cebde3c0175b730e0b.zip | |
crypto: picoxcell - support for device tree matching
Allow the crypto engines to be matched from device tree bindings.
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/picoxcell_crypto.c | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c index d119e0e32f23..017340c3b715 100644 --- a/drivers/crypto/picoxcell_crypto.c +++ b/drivers/crypto/picoxcell_crypto.c @@ -34,6 +34,7 @@ #include <linux/io.h> #include <linux/list.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/rtnetlink.h> @@ -1657,27 +1658,49 @@ static struct spacc_alg l2_engine_algs[] = { }, }; +#ifdef CONFIG_OF +static const struct of_device_id spacc_of_id_table[] = { + { .compatible = "picochip,spacc-ipsec" }, + { .compatible = "picochip,spacc-l2" }, + {} +}; +#else /* CONFIG_OF */ +#define spacc_of_id_table NULL +#endif /* CONFIG_OF */ + +static bool spacc_is_compatible(struct platform_device *pdev, + const char *spacc_type) +{ + const struct platform_device_id *platid = platform_get_device_id(pdev); + + if (platid && !strcmp(platid->name, spacc_type)) + return true; + +#ifdef CONFIG_OF + if (of_device_is_compatible(pdev->dev.of_node, spacc_type)) + return true; +#endif /* CONFIG_OF */ + + return false; +} + static int __devinit spacc_probe(struct platform_device *pdev) { int i, err, ret = -EINVAL; struct resource *mem, *irq; - const struct platform_device_id *platid = platform_get_device_id(pdev); struct spacc_engine *engine = devm_kzalloc(&pdev->dev, sizeof(*engine), GFP_KERNEL); if (!engine) return -ENOMEM; - if (!platid) - return -EINVAL; - - if (!strcmp(platid->name, "picoxcell-ipsec")) { + if (spacc_is_compatible(pdev, "picochip,spacc-ipsec")) { engine->max_ctxs = SPACC_CRYPTO_IPSEC_MAX_CTXS; engine->cipher_pg_sz = SPACC_CRYPTO_IPSEC_CIPHER_PG_SZ; engine->hash_pg_sz = SPACC_CRYPTO_IPSEC_HASH_PG_SZ; engine->fifo_sz = SPACC_CRYPTO_IPSEC_FIFO_SZ; engine->algs = ipsec_engine_algs; engine->num_algs = ARRAY_SIZE(ipsec_engine_algs); - } else if (!strcmp(platid->name, "picoxcell-l2")) { + } else if (spacc_is_compatible(pdev, "picochip,spacc-l2")) { engine->max_ctxs = SPACC_CRYPTO_L2_MAX_CTXS; engine->cipher_pg_sz = SPACC_CRYPTO_L2_CIPHER_PG_SZ; engine->hash_pg_sz = SPACC_CRYPTO_L2_HASH_PG_SZ; @@ -1826,6 +1849,7 @@ static struct platform_driver spacc_driver = { #ifdef CONFIG_PM .pm = &spacc_pm_ops, #endif /* CONFIG_PM */ + .of_match_table = spacc_of_id_table, }, .id_table = spacc_id_table, }; |