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path: root/drivers/crypto
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2022-10-28crypto: hisilicon/qm - add pci bdf number checkKai Ye1-25/+12
The pci bdf number check is added for qos written by using the pci api. Directly get the devfn by pci_dev, so delete some redundant code. And use the kstrtoul instead of sscanf to simplify code. Signed-off-by: Kai Ye <yekai13@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: hisilicon/qm - increase the memory of local variablesKai Ye1-2/+1
Increase the buffer to prevent stack overflow by fuzz test. The maximum length of the qos configuration buffer is 256 bytes. Currently, the value of the 'val buffer' is only 32 bytes. The sscanf does not check the dest memory length. So the 'val buffer' may stack overflow. Signed-off-by: Kai Ye <yekai13@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - Add support for RK3399Corentin Labbe4-68/+123
The RK3399 has 2 rk3288 compatible crypto device named crypto0 and crypto1. The only difference is lack of RSA in crypto1. We need to add driver support for 2 parallel instance as only one need to register crypto algorithms. Then the driver will round robin each request on each device. For avoiding complexity (device bringup after a TFM is created), PM is modified to be handled per request. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - permit to have more than one resetCorentin Labbe1-1/+1
The RK3399 has 3 resets, so the driver to handle multiple resets. This is done by using devm_reset_control_array_get_exclusive(). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - rk_ahash_reg_init use crypto_info from parameterCorentin Labbe1-5/+3
rk_ahash_reg_init() use crypto_info from TFM context, since we will remove it, let's take if from parameters. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - Check for clocks numbers and their frequenciesCorentin Labbe2-12/+79
Add the number of clocks needed for each compatible. Rockchip's datasheet give maximum frequencies for some clocks, so add checks for verifying they are within limits. Let's start with rk3288 for clock frequency check, other will came later. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - store crypto_info in request contextCorentin Labbe3-10/+12
The crypto_info to use must be stored in the request context. This will help when 2 crypto_info will be available on rk3399. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - use the rk_crypto_info given as parameterCorentin Labbe1-2/+2
Instead of using the crypto_info from TFM ctx, use the one given as parameter. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - use a rk_crypto_info variable instead of lot of indirectionCorentin Labbe2-28/+32
Instead of using lot of ctx->dev->xx indirections, use an intermediate variable for rk_crypto_info. This will help later, when 2 different rk_crypto_info would be used. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - rework rk_handle_req functionCorentin Labbe1-51/+17
This patch rework the rk_handle_req(), simply removing the rk_crypto_info parameter. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - rename ablk functions to cipherCorentin Labbe1-16/+16
Some functions have still ablk in their name even if there are not handling ablk_cipher anymore. So let's rename them. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - add support for rk3328Corentin Labbe1-0/+1
The rk3328 could be used as-is by the rockchip driver. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - fix style issueCorentin Labbe1-6/+6
This patch fixes some warning reported by checkpatch Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - use read_poll_timeoutCorentin Labbe1-12/+12
Use read_poll_timeout instead of open coding it. In the same time, fix indentation of related comment. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - use clk_bulk to simplify clock managementCorentin Labbe2-61/+11
rk3328 does not have the same clock names than rk3288, instead of using a complex clock management, let's use clk_bulk to simplify their handling. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - handle reset also in PMCorentin Labbe1-12/+10
reset could be handled by PM functions. We keep the initial reset pulse to be sure the hw is a know device state after probe. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - introduce PMCorentin Labbe4-2/+69
Add runtime PM support for rockchip crypto. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - add debugfsCorentin Labbe5-0/+91
This patch enable to access usage stats for each algorithm. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - rewrite typeCorentin Labbe4-23/+28
Instead of using a custom type for classify algorithms, let's just use already defined ones. And let's made a bit more verbose about what is registered. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - rework by using crypto_engineCorentin Labbe5-365/+221
Instead of doing manual queue management, let's use the crypto/engine for that. In the same time, rework the requests handling to be easier to understand (and fix all bugs related to them). Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - remove non-aligned handlingCorentin Labbe4-103/+31
Now driver have fallback for un-aligned cases, remove all code handling those cases. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - better handle cipher keyCorentin Labbe2-3/+8
The key should not be set in hardware too much in advance, this will fail it 2 TFM with different keys generate alternative requests. The key should be stored and used just before doing cipher operations. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - add fallback for ahashCorentin Labbe1-0/+38
Adds a fallback for all case hardware cannot handle. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - add fallback for cipherCorentin Labbe3-13/+90
The hardware does not handle 0 size length request, let's add a fallback. Furthermore fallback will be used for all unaligned case the hardware cannot handle. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - do not store mode globallyCorentin Labbe2-22/+41
Storing the mode globally does not work if 2 requests are handled in the same time. We should store it in a request context. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - fix privete/private typoCorentin Labbe1-1/+1
This fix a simple typo on private word. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - do not do custom power managementCorentin Labbe4-8/+6
The clock enable/disable at tfm init/exit is fragile, if 2 tfm are init in the same time and one is removed just after, it will leave the hardware uncloked even if a user remains. Instead simply enable clocks at probe time. We will do PM later. Fixes: ce0183cb6464b ("crypto: rockchip - switch to skcipher API") Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - do not use uninitialized variableCorentin Labbe1-1/+1
crypto_info->dev is not yet set, so use pdev->dev instead. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-28crypto: rockchip - use dev_err for error message about interruptCorentin Labbe1-2/+1
Interrupt is mandatory so the message should be printed as error. Reviewed-by: John Keeping <john@metanate.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: talitos - Use the defined variable to clean codejianchunfu1-3/+3
Use the defined variable "dev" to make the code cleaner. Signed-off-by: jianchunfu <jianchunfu@cmss.chinamobile.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: n2 - add missing hash statesizeCorentin Labbe1-0/+6
Add missing statesize to hash templates. This is mandatory otherwise no algorithms can be registered as the core requires statesize to be set. CC: stable@kernel.org # 4.3+ Reported-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Tested-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Fixes: 0a625fd2abaa ("crypto: n2 - Add Niagara2 crypto driver") Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: ixp4xx - Fix sparse warningsHerbert Xu1-5/+5
This fixes a number of trivial sparse warnings in ixp4xx. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: stm32 - Fix spelling mistake "wite" -> "write"Colin Ian King1-2/+2
There are a couple of spelling mistakes in dev_err messages. Fix them. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Acked-by: nicolas.toromanoff@foss.st.com Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: ccp - Add support for TEE for PCI ID 0x14CAMario Limonciello1-1/+10
SoCs containing 0x14CA are present both in datacenter parts that support SEV as well as client parts that support TEE. Cc: stable@vger.kernel.org # 5.15+ Tested-by: Rijo-john Thomas <Rijo-john.Thomas@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Acked-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: nitrox - avoid double free on error path in nitrox_sriov_init()Natalia Petrova1-0/+1
If alloc_workqueue() fails in nitrox_mbox_init() it deallocates ndev->iov.vfdev and returns error code, but then nitrox_sriov_init() calls nitrox_sriov_cleanup() where ndev->iov.vfdev is deallocated again. Fix this by nulling ndev->iov.vfdev after the first deallocation. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 9e5de3e06e54 ("crypto: cavium/nitrox - Add mailbox...") Signed-off-by: Natalia Petrova <n.petrova@fintech.ru> Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: ccp - Remove unused struct ccp_crypto_cpuYuan Can1-7/+0
After commit bc3854476f36("crypto: ccp - Use a single queue for proper ordering of tfm requests"), no one use struct ccp_crypto_cpu, so remove it. Signed-off-by: Yuan Can <yuancan@huawei.com> Acked-by: John Allen <john.allen@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: sun8i-ss - use dma_addr instead u32Corentin Labbe1-1/+1
The DMA address need to be stored in a dma_addr_t Fixes: 359e893e8af4 ("crypto: sun8i-ss - rework handling of IV") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: inside-secure - Add MaxLinear platformPeter Harliman Liem2-1/+13
This is to add MaxLinear platform into compatible id. Firmware endianness option is added since MaxLinear firmware is in little endian format. Signed-off-by: Peter Harliman Liem <pliem@maxlinear.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: inside-secure - Add fw_little_endian optionPeter Harliman Liem2-4/+11
This is to add fw_little_endian option, which can be used for platform which firmware is using little-endian (instead of big-endian). Signed-off-by: Peter Harliman Liem <pliem@maxlinear.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: inside-secure - Expand soc data structurePeter Harliman Liem2-15/+35
Currently platform data is assigned directly to version string(instead of struct). To make it more scalable, we move it to use data struct instead. This allows customization for individual platforms other than version string. Signed-off-by: Peter Harliman Liem <pliem@maxlinear.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: talitos - Replace zero-length arrays with DECLARE_FLEX_ARRAY() helperGustavo A. R. Silva1-2/+2
Zero-length arrays are deprecated and we are moving towards adopting C99 flexible-array members, instead. So, replace zero-length arrays declarations in anonymous union with the new DECLARE_FLEX_ARRAY() helper macro. This helper allows for flexible-array members in unions. Link: https://github.com/KSPP/linux/issues/193 Link: https://github.com/KSPP/linux/issues/216 Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: ccp - Add __init/__exit annotations to module init/exit funcsruanjinjie1-2/+2
Add missing __init/__exit annotations to module init/exit funcs Signed-off-by: ruanjinjie <ruanjinjie@huawei.com> Acked-by: John Allen <john.allen@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: hisilicon/qm - re-enable communicate interrupt before notifying PFWeili Qian1-1/+1
After the device is reset, the VF needs to re-enable communication interrupt before the VF sends restart complete message to the PF. If the interrupt is re-enabled after the VF notifies the PF, the PF may fail to send messages to the VF after receiving VF's restart complete message. Fixes: 760fe22cf5e9 ("crypto: hisilicon/qm - update reset flow") Signed-off-by: Weili Qian <qianweili@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: hisilicon/sec - enabling clock gating of the address prefetch moduleWeili Qian1-1/+1
Change the value of clock gating register to 0x7fff to enable clock gating of the address prefetch module. When the device is idle, the clock is turned off to save power. Signed-off-by: Weili Qian <qianweili@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: hisilicon/qm - fix incorrect parameters usageWeili Qian1-2/+2
In qm_get_xqc_depth(), parameters low_bits and high_bits save the values of the corresponding bits. However, the values saved by the two parameters are opposite. As a result, the values returned to the callers are incorrect. Fixes: 129a9f340172 ("crypto: hisilicon/qm - get qp num and depth from hardware registers") Signed-off-by: Weili Qian <qianweili@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: hisilicon/qm - drop unnecessary IS_ENABLE(CONFIG_NUMA) checkYicong Yang1-6/+4
dev_to_node() can handle the case when CONFIG_NUMA is not set, so the check of CONFIG_NUMA is redundant and can be removed. Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Signed-off-by: Weili Qian <qianweili@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-21crypto: hisilicon/hpre - fix resource leak in remove processZhiqi Song1-8/+2
In hpre_remove(), when the disable operation of qm sriov failed, the following logic should continue to be executed to release the remaining resources that have been allocated, instead of returning directly, otherwise there will be resource leakage. Signed-off-by: Zhiqi Song <songzhiqi1@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-10-10Merge tag 'v6.1-p1' of ↵Linus Torvalds55-1044/+5094
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Feed untrusted RNGs into /dev/random - Allow HWRNG sleeping to be more interruptible - Create lib/utils module - Setting private keys no longer required for akcipher - Remove tcrypt mode=1000 - Reorganised Kconfig entries Algorithms: - Load x86/sha512 based on CPU features - Add AES-NI/AVX/x86_64/GFNI assembler implementation of aria cipher Drivers: - Add HACE crypto driver aspeed" * tag 'v6.1-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (124 commits) crypto: aspeed - Remove redundant dev_err call crypto: scatterwalk - Remove unused inline function scatterwalk_aligned() crypto: aead - Remove unused inline functions from aead crypto: bcm - Simplify obtain the name for cipher crypto: marvell/octeontx - use sysfs_emit() to instead of scnprintf() hwrng: core - start hwrng kthread also for untrusted sources crypto: zip - remove the unneeded result variable crypto: qat - add limit to linked list parsing crypto: octeontx2 - Remove the unneeded result variable crypto: ccp - Remove the unneeded result variable crypto: aspeed - Fix check for platform_get_irq() errors crypto: virtio - fix memory-leak crypto: cavium - prevent integer overflow loading firmware crypto: marvell/octeontx - prevent integer overflows crypto: aspeed - fix build error when only CRYPTO_DEV_ASPEED is enabled crypto: hisilicon/qm - fix the qos value initialization crypto: sun4i-ss - use DEFINE_SHOW_ATTRIBUTE to simplify sun4i_ss_debugfs crypto: tcrypt - add async speed test for aria cipher crypto: aria-avx - add AES-NI/AVX/x86_64/GFNI assembler implementation of aria cipher crypto: aria - prepare generic module for optimized implementations ...
2022-10-05Merge tag 'i2c-for-6.1-rc1' of ↵Linus Torvalds2-8/+4
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: - 'remove' callback converted to return void. Big change with trivial fixes all over the tree. Other subsystems depending on this change have been asked to pull an immutable topic branch for this. - new driver for Microchip PCI1xxxx switch - heavy refactoring of the Mellanox BlueField driver - we prefer async probe in the i801 driver now - the rest is usual driver updates (support for more SoCs, some refactoring, some feature additions) * tag 'i2c-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (37 commits) i2c: pci1xxxx: prevent signed integer overflow i2c: acpi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper i2c: i801: Prefer async probe i2c: designware-pci: Use standard pattern for memory allocation i2c: designware-pci: Group AMD NAVI quirk parts together i2c: microchip: pci1xxxx: Add driver for I2C host controller in multifunction endpoint of pci1xxxx switch docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED i2c: mlxbf: remove device tree support i2c: mlxbf: support BlueField-3 SoC i2c: cadence: Add standard bus recovery support i2c: mlxbf: add multi slave functionality i2c: mlxbf: support lock mechanism macintosh/ams: Adapt declaration of ams_i2c_remove() to earlier change i2c: riic: Use devm_platform_ioremap_resource() i2c: mlxbf: remove IRQF_ONESHOT dt-bindings: i2c: rockchip: add rockchip,rk3128-i2c dt-bindings: i2c: renesas,rcar-i2c: Add r8a779g0 support i2c: tegra: Add GPCDMA support i2c: scmi: Convert to be a platform driver i2c: rk3x: Add rv1126 support ...
2022-09-30crypto: aspeed - Remove redundant dev_err callShang XiaoJing1-3/+1
devm_ioremap_resource() prints error message in itself. Remove the dev_err call to avoid redundant error message. Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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