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authorKrzysztof Kozlowski <krzk@kernel.org>2017-03-17 16:49:21 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2017-03-24 22:03:00 +0800
commit106d73340f46538d29547ac06271f55de0f4d14e (patch)
treedd850f8c7f590e67c669678e0164de5d37504701 /drivers/crypto
parentfb514b2d57eec3c9e1ddb7474f5faaf7fb71bf2e (diff)
crypto: s5p-sss - Document the struct s5p_aes_dev
Add kernel-doc to s5p_aes_dev structure. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/s5p-sss.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 35ea84b7d775..7ac657f46d15 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -170,6 +170,32 @@ struct s5p_aes_ctx {
int keylen;
};
+/**
+ * struct s5p_aes_dev - Crypto device state container
+ * @dev: Associated device
+ * @clk: Clock for accessing hardware
+ * @ioaddr: Mapped IO memory region
+ * @aes_ioaddr: Per-varian offset for AES block IO memory
+ * @irq_fc: Feed control interrupt line
+ * @req: Crypto request currently handled by the device
+ * @ctx: Configuration for currently handled crypto request
+ * @sg_src: Scatter list with source data for currently handled block
+ * in device. This is DMA-mapped into device.
+ * @sg_dst: Scatter list with destination data for currently handled block
+ * in device. This is DMA-mapped into device.
+ * @sg_src_cpy: In case of unaligned access, copied scatter list
+ * with source data.
+ * @sg_dst_cpy: In case of unaligned access, copied scatter list
+ * with destination data.
+ * @tasklet: New request scheduling jib
+ * @queue: Crypto queue
+ * @busy: Indicates whether the device is currently handling some request
+ * thus it uses some of the fields from this state, like:
+ * req, ctx, sg_src/dst (and copies). This essentially
+ * protects against concurrent access to these fields.
+ * @lock: Lock for protecting both access to device hardware registers
+ * and fields related to current request (including the busy field).
+ */
struct s5p_aes_dev {
struct device *dev;
struct clk *clk;
@@ -182,7 +208,6 @@ struct s5p_aes_dev {
struct scatterlist *sg_src;
struct scatterlist *sg_dst;
- /* In case of unaligned access: */
struct scatterlist *sg_src_cpy;
struct scatterlist *sg_dst_cpy;