crypto: mxs - Remove the old DCP driver

Remove the old DCP driver as it had multiple severe issues. The driver
will be replaced by a more robust implementation. Here is a short list
of problems with this driver:

1) It only supports AES_CBC
2) The driver was apparently never ran behind anyone working with MXS. ie.:
   -> Restarting the DCP block is not done via mxs_reset_block()
   -> The DT name is not "fsl,dcp" or "fsl,mxs-dcp" as other MXS drivers
3) Introduces new ad-hoc IOCTLs
4) The IRQ handler can't use usual completion() in the driver because that'd
   trigger "scheduling while atomic" oops, yes?

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 0 insertions, 10 deletions

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 9dee00f257cb..9ef60dc84a79 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -289,16 +289,6 @@ config CRYPTO_DEV_SAHARA
           This option enables support for the SAHARA HW crypto accelerator
           found in some Freescale i.MX chips.
 
-config CRYPTO_DEV_DCP
-        tristate "Support for the DCP engine"
-        depends on ARCH_MXS && OF
-        select CRYPTO_BLKCIPHER
-        select CRYPTO_AES
-        select CRYPTO_CBC
-        help
-          This options enables support for the hardware crypto-acceleration
-          capabilities of the DCP co-processor
-
 config CRYPTO_DEV_S5P
         tristate "Support for Samsung S5PV210 crypto accelerator"
         depends on ARCH_S5PV210