kernel/linux.git/drivers/memory, branch v5.10.28

memory: ti-aemif: Drop child node when jumping out loop

2021-03-04T10:37:25+00:00

[ Upstream commit 94e9dd43cf327366388c8f146bccdc6322c0d999 ] Call of_node_put() to decrement the reference count of the child node child_np when jumping out of the loop body of for_each_available_child_of_node(), which is a macro that increments and decrements the reference count of child node. If the loop is broken, the reference of the child node should be dropped manually. Fixes: 5a7c81547c1d ("memory: ti-aemif: introduce AEMIF driver") Signed-off-by: Pan Bian Link: https://lore.kernel.org/r/20210121090359.61763-1-bianpan2016@163.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Sasha Levin

memory: mtk-smi: Fix PM usage counter unbalance in mtk_smi ops

2021-03-04T10:37:22+00:00

[ Upstream commit a2d522ff0f5cc26915c4ccee9457fd4b4e1edc48 ] pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. We fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: 4f0a1a1ae3519 ("memory: mtk-smi: Invoke pm runtime_callback to enable clocks") Signed-off-by: Zhang Qilong Link: https://lore.kernel.org/r/20201123102118.3866195-1-zhangqilong3@huawei.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Sasha Levin

memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm

2020-12-30T10:54:27+00:00

commit 61a6d854b9555b420fbfae62ef26baa8b9493b32 upstream. rpcif_enable_rpm calls pm_runtime_enable, so rpcif_disable_rpm needs to call pm_runtime_disable and not pm_runtime_put_sync. Fixes: ca7d8b980b67f ("memory: add Renesas RPC-IF driver") Reported-by: Geert Uytterhoeven Signed-off-by: Lad Prabhakar Reviewed-by: Sergei Shtylyov Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201126191146.8753-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman

memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer()

2020-12-30T10:54:27+00:00

commit a0453f4ed066cae651b3119ed11f52d31dae1eca upstream. In the error path of rpcif_manual_xfer() the value of ret is overwritten by value returned by reset_control_reset() function and thus returning incorrect value to the caller. This patch makes sure the correct value is returned to the caller of rpcif_manual_xfer() by dropping the overwrite of ret in error path. Also now we ignore the value returned by reset_control_reset() in the error path and instead print a error message when it fails. Fixes: ca7d8b980b67f ("memory: add Renesas RPC-IF driver") Reported-by: Pavel Machek Signed-off-by: Lad Prabhakar Reviewed-by: Sergei Shtylyov Reviewed-by: Geert Uytterhoeven Reviewed-by: Pavel Machek (CIP) Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201126191146.8753-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman

memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()

2020-12-30T10:54:27+00:00

commit 4e6b86b409f9fc63fedb39d6e3a0202c4b0244ce upstream. Release the node reference by calling of_node_put(flash) in the probe. Fixes: ca7d8b980b67f ("memory: add Renesas RPC-IF driver") Reported-by: Pavel Machek Signed-off-by: Lad Prabhakar Reviewed-by: Sergei Shtylyov Reviewed-by: Geert Uytterhoeven Reviewed-by: Pavel Machek (CIP) Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201126191146.8753-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman

memory: jz4780_nemc: Fix an error pointer vs NULL check in probe()

2020-12-30T10:54:27+00:00

commit 96999c797ec1ef41259f00b4ddf9cf33b342cb78 upstream. The devm_ioremap() function returns NULL on error, it doesn't return error pointers. This bug could lead to an Oops during probe. Fixes: f046e4a3f0b9 ("memory: jz4780_nemc: Only request IO memory the driver will use") Cc: Signed-off-by: Dan Carpenter Reviewed-by: Paul Cercueil Link: https://lore.kernel.org/r/20200803143607.GC346925@mwanda Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman

memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()

2020-12-30T10:53:37+00:00

[ Upstream commit 4bfa07300b9334b487ed4f3d4901c35ebb31b7ca ] platform_get_resource() may fail and return NULL, so we should better check it's return value to avoid a NULL pointer dereference a bit later in the code. This is detected by Coccinelle semantic patch. Fixes: 911a88829725 ("memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCs") Signed-off-by: Zhang Changzhong Acked-by: Paul Cercueil Link: https://lore.kernel.org/r/1607070717-32880-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Krzysztof Kozlowski Signed-off-by: Sasha Levin

memory: ti-emif-sram: only build for ARMv7

2020-12-30T10:53:37+00:00

[ Upstream commit d77d22d701b0471584abe1871570bb43deb6e3c4 ] The driver can be compile-tested on all ARM machines, but causes a failure when built for ARMv7-M: arm-linux-gnueabi-ld: error: drivers/memory/ti-emif-sram-pm.o: conflicting architecture profiles A/M Limit the target machines to configurations that have ARMv7 enabled. Fixes: ea0c0ad6b6eb ("memory: Enable compile testing for most of the drivers") Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20201203230832.1481767-1-arnd@kernel.org Signed-off-by: Krzysztof Kozlowski Signed-off-by: Sasha Levin

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2020-10-24T17:39:22+00:00

Pull ARM SoC-related driver updates from Olof Johansson: "Various driver updates for platforms. A bulk of this is smaller fixes or cleanups, but some of the new material this time around is: - Support for Nvidia Tegra234 SoC - Ring accelerator support for TI AM65x - PRUSS driver for TI platforms - Renesas support for R-Car V3U SoC - Reset support for Cortex-M4 processor on i.MX8MQ There are also new socinfo entries for a handful of different SoCs and platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits) drm/mediatek: reduce clear event soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api soc: mediatek: cmdq: add jump function soc: mediatek: cmdq: add write_s_mask value function soc: mediatek: cmdq: add write_s value function soc: mediatek: cmdq: add read_s function soc: mediatek: cmdq: add write_s_mask function soc: mediatek: cmdq: add write_s function soc: mediatek: cmdq: add address shift in jump soc: mediatek: mtk-infracfg: Fix kerneldoc soc: amlogic: pm-domains: use always-on flag reset: sti: reset-syscfg: fix struct description warnings reset: imx7: add the cm4 reset for i.MX8MQ dt-bindings: reset: imx8mq: add m4 reset reset: Fix and extend kerneldoc reset: reset-zynqmp: Added support for Versal platform dt-bindings: reset: Updated binding for Versal reset driver reset: imx7: Support module build soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk soc: fsl: qman: convert to use be32_add_cpu() ...

Merge tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

2020-10-14T19:08:34+00:00

Pull iommu updates from Joerg Roedel: - ARM-SMMU Updates from Will: - Continued SVM enablement, where page-table is shared with CPU - Groundwork to support integrated SMMU with Adreno GPU - Allow disabling of MSI-based polling on the kernel command-line - Minor driver fixes and cleanups (octal permissions, error messages, ...) - Secure Nested Paging Support for AMD IOMMU. The IOMMU will fault when a device tries DMA on memory owned by a guest. This needs new fault-types as well as a rewrite of the IOMMU memory semaphore for command completions. - Allow broken Intel IOMMUs (wrong address widths reported) to still be used for interrupt remapping. - IOMMU UAPI updates for supporting vSVA, where the IOMMU can access address spaces of processes running in a VM. - Support for the MT8167 IOMMU in the Mediatek IOMMU driver. - Device-tree updates for the Renesas driver to support r8a7742. - Several smaller fixes and cleanups all over the place. * tag 'iommu-updates-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (57 commits) iommu/vt-d: Gracefully handle DMAR units with no supported address widths iommu/vt-d: Check UAPI data processed by IOMMU core iommu/uapi: Handle data and argsz filled by users iommu/uapi: Rename uapi functions iommu/uapi: Use named union for user data iommu/uapi: Add argsz for user filled data docs: IOMMU user API iommu/qcom: add missing put_device() call in qcom_iommu_of_xlate() iommu/arm-smmu-v3: Add SVA device feature iommu/arm-smmu-v3: Check for SVA features iommu/arm-smmu-v3: Seize private ASID iommu/arm-smmu-v3: Share process page tables iommu/arm-smmu-v3: Move definitions to a header iommu/io-pgtable-arm: Move some definitions to a header iommu/arm-smmu-v3: Ensure queue is read after updating prod pointer iommu/amd: Re-purpose Exclusion range registers to support SNP CWWB iommu/amd: Add support for RMP_PAGE_FAULT and RMP_HW_ERR iommu/amd: Use 4K page for completion wait write-back semaphore iommu/tegra-smmu: Allow to group clients in same swgroup iommu/tegra-smmu: Fix iova->phys translation ...