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2020-05-19Merge tag 'v4.9.220' into 4.9-2.3.x-imxMarcel Ziswiler
This is the 4.9.220 stable release Conflicts: arch/arm/Kconfig.debug arch/arm/boot/dts/imx7s.dtsi arch/arm/mach-imx/common.h arch/arm/mach-imx/cpuidle-imx6q.c arch/arm/mach-imx/cpuidle-imx6sx.c arch/arm/mach-imx/suspend-imx6.S block/blk-core.c drivers/crypto/caam/caamalg.c drivers/crypto/mxs-dcp.c drivers/dma/imx-sdma.c drivers/gpu/drm/bridge/adv7511/adv7511_drv.c drivers/input/keyboard/imx_keypad.c drivers/input/keyboard/snvs_pwrkey.c drivers/mmc/host/sdhci.c drivers/net/can/flexcan.c drivers/net/ethernet/freescale/fec_main.c drivers/net/phy/phy_device.c drivers/net/wireless/ath/ath10k/pci.c drivers/tty/serial/imx.c drivers/usb/dwc3/gadget.c drivers/usb/host/xhci.c include/linux/blkdev.h include/linux/cpu.h include/linux/platform_data/dma-imx-sdma.h kernel/cpu.c net/wireless/util.c sound/soc/fsl/Kconfig sound/soc/fsl/fsl_esai.c sound/soc/fsl/fsl_sai.c sound/soc/fsl/imx-sgtl5000.c
2020-01-04hwrng: omap3-rom - Call clk_disable_unprepare() on exit only if not idledTony Lindgren
[ Upstream commit eaecce12f5f0d2c35d278e41e1bc4522393861ab ] When unloading omap3-rom-rng, we'll get the following: WARNING: CPU: 0 PID: 100 at drivers/clk/clk.c:948 clk_core_disable This is because the clock may be already disabled by omap3_rom_rng_idle(). Let's fix the issue by checking for rng_idle on exit. Cc: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: Adam Ford <aford173@gmail.com> Cc: Pali Rohár <pali.rohar@gmail.com> Cc: Sebastian Reichel <sre@kernel.org> Cc: Tero Kristo <t-kristo@ti.com> Fixes: 1c6b7c2108bd ("hwrng: OMAP3 ROM Random Number Generator support") Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-05hwrng: stm32 - fix unbalanced pm_runtime_enableLionel Debieve
commit af0d4442dd6813de6e77309063beb064fa8e89ae upstream. No remove function implemented yet in the driver. Without remove function, the pm_runtime implementation complains when removing and probing again the driver. Signed-off-by: Lionel Debieve <lionel.debieve@st.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-05hwrng: core - don't wait on add_early_randomness()Laurent Vivier
commit 78887832e76541f77169a24ac238fccb51059b63 upstream. add_early_randomness() is called by hwrng_register() when the hardware is added. If this hardware and its module are present at boot, and if there is no data available the boot hangs until data are available and can't be interrupted. For instance, in the case of virtio-rng, in some cases the host can be not able to provide enough entropy for all the guests. We can have two easy ways to reproduce the problem but they rely on misconfiguration of the hypervisor or the egd daemon: - if virtio-rng device is configured to connect to the egd daemon of the host but when the virtio-rng driver asks for data the daemon is not connected, - if virtio-rng device is configured to connect to the egd daemon of the host but the egd daemon doesn't provide data. The guest kernel will hang at boot until the virtio-rng driver provides enough data. To avoid that, call rng_get_data() in non-blocking mode (wait=0) from add_early_randomness(). Signed-off-by: Laurent Vivier <lvivier@redhat.com> Fixes: d9e797261933 ("hwrng: add randomness to system from rng...") Cc: <stable@vger.kernel.org> Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-05hwrng: virtio - Avoid repeated init of completionDavid Tolnay
[ Upstream commit aef027db48da56b6f25d0e54c07c8401ada6ce21 ] The virtio-rng driver uses a completion called have_data to wait for a virtio read to be fulfilled by the hypervisor. The completion is reset before placing a buffer on the virtio queue and completed by the virtio callback once data has been written into the buffer. Prior to this commit, the driver called init_completion on this completion both during probe as well as when registering virtio buffers as part of a hwrng read operation. The second of these init_completion calls should instead be reinit_completion because the have_data completion has already been inited by probe. As described in Documentation/scheduler/completion.txt, "Calling init_completion() twice on the same completion object is most likely a bug". This bug was present in the initial implementation of virtio-rng in f7f510ec1957 ("virtio: An entropy device, as suggested by hpa"). Back then the have_data completion was a single static completion rather than a member of one of potentially multiple virtrng_info structs as implemented later by 08e53fbdb85c ("virtio-rng: support multiple virtio-rng devices"). The original driver incorrectly used init_completion rather than INIT_COMPLETION to reset have_data during read. Tested by running `head -c48 /dev/random | hexdump` within crosvm, the Chrome OS virtual machine monitor, and confirming that the virtio-rng driver successfully produces random bytes from the host. Signed-off-by: David Tolnay <dtolnay@gmail.com> Tested-by: David Tolnay <dtolnay@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
2018-08-24MLK-12343 MX6SL-EVK missing hardware random number generator.Dan Douglass
ENGR00292341 imx6sl hwrng Add hwrng support for i.MX6SL. 1. Add RNG driver. This driver originated as fsl-rngc.c. It has been modified to support device tree. The name has been changed since it supports both b and c variants of RNG. 2. Added clock and compatible info to the device tree data. 3. Added the entry in the options in the Kconfig for hwrng. (cherry picked from commit 1f3f2c0647b7319c4e23293a61512e4191593513) [<vicki.milhoan@freescale.com>: Edited to apply to 3.14] Signed-off-by: Dan Douglass <dan.douglass@freescale.com> Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com>
2018-05-30hwrng: stm32 - add reset during probelionel.debieve@st.com
[ Upstream commit 326ed382256475aa4b8b7eae8a2f60689fd25e78 ] Avoid issue when probing the RNG without reset if bad status has been detected previously Signed-off-by: Lionel Debieve <lionel.debieve@st.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-22x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_steppingJia Zhang
commit b399151cb48db30ad1e0e93dd40d68c6d007b637 upstream. x86_mask is a confusing name which is hard to associate with the processor's stepping. Additionally, correct an indent issue in lib/cpu.c. Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com> [ Updated it to more recent kernels. ] Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: bp@alien8.de Cc: tony.luck@intel.com Link: http://lkml.kernel.org/r/1514771530-70829-1-git-send-email-qianyue.zj@alibaba-inc.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-30hwrng: geode - Revert managed API changesPrarit Bhargava
commit 8c75704ebcac2ffa31ee7bcc359baf701b52bf00 upstream. After commit e9afc746299d ("hwrng: geode - Use linux/io.h instead of asm/io.h") the geode-rng driver uses devres with pci_dev->dev to keep track of resources, but does not actually register a PCI driver. This results in the following issues: 1. The driver leaks memory because the driver does not attach to a device. The driver only uses the PCI device as a reference. devm_*() functions will release resources on driver detach, which the geode-rng driver will never do. As a result, 2. The driver cannot be reloaded because there is always a use of the ioport and region after the first load of the driver. Revert the changes made by e9afc746299d ("hwrng: geode - Use linux/io.h instead of asm/io.h"). Signed-off-by: Prarit Bhargava <prarit@redhat.com> Fixes: 6e9b5e76882c ("hwrng: geode - Migrate to managed API") Cc: Matt Mackall <mpm@selenic.com> Cc: Corentin LABBE <clabbe.montjoie@gmail.com> Cc: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Cc: Wei Yongjun <weiyongjun1@huawei.com> Cc: linux-crypto@vger.kernel.org Cc: linux-geode@lists.infradead.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-30hwrng: amd - Revert managed API changesPrarit Bhargava
commit 69db7009318758769d625b023402161c750f7876 upstream. After commit 31b2a73c9c5f ("hwrng: amd - Migrate to managed API"), the amd-rng driver uses devres with pci_dev->dev to keep track of resources, but does not actually register a PCI driver. This results in the following issues: 1. The message WARNING: CPU: 2 PID: 621 at drivers/base/dd.c:349 driver_probe_device+0x38c is output when the i2c_amd756 driver loads and attempts to register a PCI driver. The PCI & device subsystems assume that no resources have been registered for the device, and the WARN_ON() triggers since amd-rng has already do so. 2. The driver leaks memory because the driver does not attach to a device. The driver only uses the PCI device as a reference. devm_*() functions will release resources on driver detach, which the amd-rng driver will never do. As a result, 3. The driver cannot be reloaded because there is always a use of the ioport and region after the first load of the driver. Revert the changes made by 31b2a73c9c5f ("hwrng: amd - Migrate to managed API"). Signed-off-by: Prarit Bhargava <prarit@redhat.com> Fixes: 31b2a73c9c5f ("hwrng: amd - Migrate to managed API"). Cc: Matt Mackall <mpm@selenic.com> Cc: Corentin LABBE <clabbe.montjoie@gmail.com> Cc: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Cc: Wei Yongjun <weiyongjun1@huawei.com> Cc: linux-crypto@vger.kernel.org Cc: linux-geode@lists.infradead.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-19hwrng: core - Don't use a stack buffer in add_early_randomness()Andrew Lutomirski
hw_random carefully avoids using a stack buffer except in add_early_randomness(). This causes a crash in virtio_rng if CONFIG_VMAP_STACK=y. Reported-by: Matt Mullins <mmullins@mmlx.us> Tested-by: Matt Mullins <mmullins@mmlx.us> Fixes: d3cc7996473a ("hwrng: fetch randomness only after device init") Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Herbert Xu
Merge the crypto tree to pull in vmx ghash fix.
2016-09-22hwrng: omap - Only fail if pm_runtime_get_sync returns < 0Dave Gerlach
Currently omap-rng checks the return value of pm_runtime_get_sync and reports failure if anything is returned, however it should be checking if ret < 0 as pm_runtime_get_sync return 0 on success but also can return 1 if the device was already active which is not a failure case. Only values < 0 are actual failures. Fixes: 61dc0a446e5d ("hwrng: omap - Fix assumption that runtime_get_sync will always succeed") Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-22hwrng: geode - fix return value check in mod_init()Wei Yongjun
In case of error, the function devm_ioremap() returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Fixes: 6e9b5e76882c ("hwrng: geode - Migrate to managed API") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-22hwrng: amd - Fix return value check in mod_init()Wei Yongjun
In case of error, the function devm_kzalloc() or devm_ioport_map() return NULL pointer not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Fixes: 31b2a73c9c5f ("hwrng: amd - Migrate to managed API") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-13hwrng: geode - Use linux/io.h instead of asm/io.hPrasannaKumar Muralidharan
Fix checkpatch.pl warning by changing from asm/io.h to linux/io.h. In the mean time arrange the includes in alphabetical order. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-13hwrng: geode - Migrate to managed APIPrasannaKumar Muralidharan
Use devm_ioremap and devm_hwrng_register instead of ioremap and hwrng_register. This removes error handling code. Also moved code around by removing goto statements. This improves code readability. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-13hwrng: st - Fix missing clk_disable_unprepare() on error in st_rng_probe()Wei Yongjun
Fix the missing clk_disable_unprepare() before return from st_rng_probe() in the error handling case. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-13hwrng: amd - Migrate to managed APIPrasannaKumar Muralidharan
Managed API eliminates error handling code, thus reduces several lines of code. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-13hwrng: core - Allocate memory during module initPrasannaKumar Muralidharan
In core rng_buffer and rng_fillbuf is allocated in hwrng_register only once and it is freed during module exit. This patch moves allocating rng_buffer and rng_fillbuf from hwrng_register to rng core's init. This avoids checking whether rng_buffer and rng_fillbuf was allocated from every hwrng_register call. Also moving them to module init makes it explicit that it is freed in module exit. Change in v2: Fix memory leak when register_miscdev fails. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-13hwrng: pasemi - Use linux/io.h instead of asm/io.hPrasannaKumar Muralidharan
Checkpatch.pl warns about usage of asm/io.h. Use linux/io.h instead. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-07hwrng: pasemi - Migrate to managed APIPrasannaKumar Muralidharan
Use devm_ioremap and devm_hwrng_register instead of ioremap and hwrng_register. This removes unregistering and error handling code. Changes in v2: Remove hardcoded resource size in ioremap, use resource struct obtained by calling platform_get_resource. Removing hardcoded resource size was suggested by LABBE Corentin. CC: Darren Stevens <darren@stevens-zone.net> Suggested-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-09-07hwrng: bcm2835 - handle of_iomap failuresArvind Yadav
Check return value of of_iomap and handle errors correctly. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: tx4939 - Use devm_hwrng_register instead of hwrng_registerPrasannaKumar Muralidharan
By using devm_hwrng_register instead of hwrng_register the .remove callback in platform_driver can be removed. This reduces a few lines in code. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: Remove check for max less than 4 bytesPrasannaKumar Muralidharan
HW RNG core never asks for data less than 4 bytes. The check whether max is less than 4 bytes is unnecessary. Remove the check. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - Convert to new hwrng read() APICorentin LABBE
This patch convert the hwrng interface used by amd768-rng to its new API by replacing data_read()/data_present() by read(). Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - Access hardware via ioread32/iowrite32Corentin LABBE
Instead of accessing hw directly via pmbase, it's better to access after ioport_map() via ioread32/iowrite32. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - Replace global variable with private structCorentin LABBE
Instead of having two global variable, it's better to use a private struct. This will permit to remove amd_pdev variable Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - release_region must be called after hwrng_unregisterCorentin LABBE
The driver release the memory region before being sure that nobody use it. This patch made hwrng_unregister ran before any release was done. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - Remove asm/io.hCorentin LABBE
checkpatch complains about <asm/io.h> used instead of linux/io.h. In fact it is not needed. This patch remove it, and in the process, alphabetize the other headers. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - Be consitent with the driver nameCorentin LABBE
The driver name is displayed each time differently. This patch make use of the same name everywhere. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - use the BIT macroCorentin LABBE
This patch add usage of the BIT() macro Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: amd - Fix style problem with blank lineCorentin LABBE
Some blank line are unncessary, and one is missing after declaration. This patch fix thoses style problems. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-31hwrng: cavium - Add Cavium HWRNG driver for ThunderX SoC.Omer Khaliq
The Cavium ThunderX SoC has a hardware random number generator. This driver provides support using the HWRNG framework. Signed-off-by: Omer Khaliq <okhaliq@caviumnetworks.com> Signed-off-by: Ananth Jasty <Ananth.Jasty@cavium.com> Acked-by: David Daney <david.daney@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-24hwrng: omap3-rom - Remove obsoleted functionsPrasannaKumar Muralidharan
Remove omap3_rom_rng_data_present method as it was returning 1 always. Use .read callback instead of .data_read callback. This avoids use of obsolete callbacks. This patch is not tested with hardware as I don't have access to it. Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-24hwrng: mxc-rnga - Fix Kconfig dependencyFabian Frederick
We can directly depend on SOC_IMX31 since commit c9ee94965dce ("ARM: imx: deconstruct mxc_rnga initialization") Since that commit, CONFIG_HW_RANDOM_MXC_RNGA could not be switched on with unknown symbol ARCH_HAS_RNGA and mxc-rnga.o can't be generated with ARCH=arm make M=drivers/char/hw_random Previously, HW_RANDOM_MXC_RNGA required ARCH_HAS_RNGA which was based on IMX_HAVE_PLATFORM_MXC_RNGA && ARCH_MXC. IMX_HAVE_PLATFORM_MXC_RNGA was based on SOC_IMX31. Fixes: c9ee94965dce ("ARM: imx: deconstruct mxc_rnga initialization") Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-08-16hwrng: pic32 - Delete unnecessary assignment for the field "owner"Markus Elfring
The field "owner" is set by the core. Thus delete an unneeded initialisation. Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-27hwrng: omap - Fix assumption that runtime_get_sync will always succeedNishanth Menon
pm_runtime_get_sync does return a error value that must be checked for error conditions, else, due to various reasons, the device maynot be enabled and the system will crash due to lack of clock to the hardware module. Before: 12.562784] [00000000] *pgd=fe193835 12.562792] Internal error: : 1406 [#1] SMP ARM [...] 12.562864] CPU: 1 PID: 241 Comm: modprobe Not tainted 4.7.0-rc4-next-20160624 #2 12.562867] Hardware name: Generic DRA74X (Flattened Device Tree) 12.562872] task: ed51f140 ti: ed44c000 task.ti: ed44c000 12.562886] PC is at omap4_rng_init+0x20/0x84 [omap_rng] 12.562899] LR is at set_current_rng+0xc0/0x154 [rng_core] [...] After the proper checks: [ 94.366705] omap_rng 48090000.rng: _od_fail_runtime_resume: FIXME: missing hwmod/omap_dev info [ 94.375767] omap_rng 48090000.rng: Failed to runtime_get device -19 [ 94.382351] omap_rng 48090000.rng: initialization failed. Fixes: 665d92fa85b5 ("hwrng: OMAP: convert to use runtime PM") Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-24hwrng: bcm2835 - Add support for Broadcom BCM5301xFlorian Fainelli
The Broadcom BCM5301x SoCs (Northstar) utilize the same random number generator peripheral as Northstar Plus and BCM2835, but just like the NSP SoC, we need to enable the interrupt. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-13hwrng: meson - Add Amlogic Meson Hardware Random GeneratorNeil Armstrong
Add support for the Amlogic Meson SoCs hardware random generator. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-13hwrng: exynos - fixup IO accesorsBen Dooks
The __raw IO functions are not endian safe, so use the readl_relaxed and writel_relaxed versions of these. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-31hwrng: bcm2835 - Read as much data as availableYendapally Reddy Dhananjaya Reddy
Read the requested number of data from the fifo Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-31hwrng: bcm2835 - Support Broadcom NSP SoC rngYendapally Reddy Dhananjaya Reddy
This supports the random number generator available in NSP SoC. Masks the rng interrupt for NSP. Signed-off-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-31hwrng: stm32 - fix maybe uninitialized variable warningMaxime Coquelin
This patch fixes the following warning: drivers/char/hw_random/stm32-rng.c: In function 'stm32_rng_read': drivers/char/hw_random/stm32-rng.c:82:19: warning: 'sr' may be used uninitialized in this function Reported-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Suggested-by: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-20crypto4xx: integrate ppc4xx-rng into crypto4xxChristian Lamparter
This patch integrates the ppc4xx-rng driver into the existing crypto4xx. This is because the true random number generator is controlled and part of the security core. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-15hwrng: hisi - Add support for Hisilicon SoC RNGKefeng Wang
This adds the Hisilicon Random Number Generator(RNG) support, which is found in Hip04 and Hip05 soc. Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-05hwrng: exynos - Fix misspelled Samsung addressKrzysztof Kozlowski
Correct smasung.com into samsung.com. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-05hwrng: exynos - Enable COMPILE_TESTKrzysztof Kozlowski
Get some build coverage of Exynos H/W random number generator driver. Driver uses devm_ioremap_resource() so add IOMEM dependency for the compile testing. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-05hwrng: exynos - Disable runtime PM on driver unbindKrzysztof Kozlowski
Driver enabled runtime PM but did not revert this on removal. Re-binding of a device triggered warning: exynos-rng 10830400.rng: Unbalanced pm_runtime_enable! Fixes: b329669ea0b5 ("hwrng: exynos - Add support for Exynos random number generator") Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-04-05hwrng: exynos - Disable runtime PM on probe failureKrzysztof Kozlowski
Add proper error path (for disabling runtime PM) when registering of hwrng fails. Fixes: b329669ea0b5 ("hwrng: exynos - Add support for Exynos random number generator") Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-25 09:27:32 +0000