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path: root/drivers/crypto/s5p-sss.c
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2014-10-20crypto: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-05-13crypto: s5p-sss - fix multiplatform buildArnd Bergmann
As we are preparing to enable multiplatform support on EXYNOS, we can no longer include mach/*.h or plat/*.h headers from device drivers. The s5p-sss driver was just enabled for EXYNOS when it used to be used only on s5pv210, and it includes two samsung platform specific header files for historic reasons. Fortunately, it no longer actually needs them, so we can remove the #includes and avoid the problem Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Cc: Tomasz Figa <t.figa@samsung.com> Cc: <linux-samsung-soc@vger.kernel.org> Cc: Vladimir Zapolskiy <vz@mleia.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-05-08crypto: s5p-sss - Look for the next request in the queueNaveen Krishna Chatradhi
Currently, the driver enqueues a request only if the busy bit is false. And every request initiates a dequeue. If 2 requests arrive simultaneously, only one of them will be dequeued. To avoid this senario, we will enqueue the next request irrespective of the system condition (that is what queue is here for). Also schedule at a tasklet immediatly after the current request is done. The tasklet will dequeue the next request in the queue, giving continuous loop. tasklet will exit if there are no requests in the queue. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-05-08crypto: s5p-sss - Use clk_prepare/clk_unprepareNaveen Krishna Chatradhi
This patch set adds use of clk_prepare/clk_unprepare as required by generic clock framework. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-05-08crypto: s5p-sss - validate iv before memcpyNaveen Krishna Chatradhi
This patch adds code to validate "iv" buffer before trying to memcpy the contents Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-05-08crypto: s5p-sss - Add support for SSS module on ExynosNaveen Krishna Chatradhi
This patch adds new compatible and variant struct to support the SSS module on Exynos4 (Exynos4210), Exynos5 (Exynos5420 and Exynos5250) for which 1. AES register are at an offset of 0x200 and 2. hash interrupt is not available Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-05-08crypto: s5p-sss - Add device tree supportNaveen Krishna Chatradhi
This patch adds device tree support to the s5p-sss.c crypto driver. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-05-08crypto: s5p-sss - Use platform_get_irq() instead of _byname()Naveen Krishna Chatradhi
This patch uses the platform_get_irq() instead of the platform_get_irq_byname(). Making feeder control interrupt as resource "0" and hash interrupt as "1". reasons for this change. 1. Cannot find any Arch which is currently using this driver 2. Samsung Exynos4 and 5 SoCs only use the feeder control interrupt 3. Patches adding support for DT and H/W version are in pipeline Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> CC: David S. Miller <davem@davemloft.net> CC: <linux-samsung-soc@vger.kernel.org> Acked-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-02-27crypto: s5p-sss - Use devm_ioremap_resource()Jingoo Han
Use devm_ioremap_resource() in order to make the code simpler, and remove redundant return value check of platform_get_resource() because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-05-24crypto: s5p-sss: Remove redundant platform_set_drvdata()Sachin Kamat
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Vladimir Zapolskiy <vzapolskiy@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-01-20crypto: s5p-sss - Use devm_clk_get()Jingoo Han
Use devm_clk_get() rather than clk_get() to make cleanup paths more simple. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-11-09crypto: s5p-sss - Fix compilation errorSachin Kamat
struct s3c2410_dma_client gets defined multiple times as it is defined in more than one header file. Changing it at the header file level causes many more build breakages as they are interdependent in a complex way. Hence fixing this problem by using the mach version of the header file. Without this patch, following build error is observed: arch/arm/plat-samsung/include/plat/dma-pl330.h:106:27: error: redefinition of struct s3c2410_dma_client Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-08-01crypto: drivers - remove cra_list initializationJussi Kivilinna
Initialization of cra_list is currently mixed, most ciphers initialize this field and most shashes do not. Initialization however is not needed at all since cra_list is initialized/overwritten in __crypto_register_alg() with list_add(). Therefore perform cleanup to remove all unneeded initializations of this field in 'crypto/drivers/'. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linux-geode@lists.infradead.org Cc: Michal Ludvig <michal@logix.cz> Cc: Dmitry Kasatkin <dmitry.kasatkin@nokia.com> Cc: Varun Wadekar <vwadekar@nvidia.com> Cc: Eric BĂ©nard <eric@eukrea.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Acked-by: Kent Yoder <key@linux.vnet.ibm.com> Acked-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-13crypto: Add CRYPTO_ALG_KERN_DRIVER_ONLY flagNikos Mavrogiannopoulos
The added CRYPTO_ALG_KERN_DRIVER_ONLY indicates whether a cipher is only available via a kernel driver. If the cipher implementation might be available by using an instruction set or by porting the kernel code, then it must not be set. Signed-off-by: Nikos Mavrogiannopoulos <nmav@gnutls.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-11-30crypto: convert drivers/crypto/* to use module_platform_driver()Axel Lin
This patch converts the drivers in drivers/crypto/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Cc: James Hsiao <jhsiao@amcc.com> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Kim Phillips <kim.phillips@freescale.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Vladimir Zapolskiy <vzapolskiy@gmail.com> Acked-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2011-04-08crypto: s5p-sss - add S5PV210 advanced crypto engine supportVladimir Zapolskiy
This change adds support for AES encrypting and decrypting using advanced crypto engine found on Samsung S5PV210 and S5PC110 SoCs. Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>