Re: [PATCH 2/8 v4] crypto:s5p-sss: Add device tree support

Naveen Krishna Ch
2014-01-23T10:20:32Z

Hello All,

On 15 January 2014 14:44, Naveen Krishna Chatradhi
<ch.naveen@samsung.com> wrote:
> 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@samsung.com>
> CC: Herbert Xu <herbert@gondor.apana.org.au>
> CC: David S. Miller <davem@davemloft.net>
> CC: Vladimir Zapolskiy <vzapolskiy@gmail.com>
> TO: <linux-crypto@vger.kernel.org>
> CC: <linux-samsung-soc@vger.kernel.org>
> ---
> Changes since v3:
> None
>
> .../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
Any update on this patch, Please
>

--
Shine bright,
(: Nav :)