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2021-02-24Merge tag 'char-misc-5.12-rc1' of ↵Linus Torvalds3-0/+218
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc/whatever driver subsystem updates for 5.12-rc1. Over time it seems like this tree is collecting more and more tiny driver subsystems in one place, making it easier for those maintainers, which is why this is getting larger. Included in here are: - coresight driver updates - habannalabs driver updates - virtual acrn driver addition (proper acks from the x86 maintainers) - broadcom misc driver addition - speakup driver updates - soundwire driver updates - fpga driver updates - amba driver updates - mei driver updates - vfio driver updates - greybus driver updates - nvmeem driver updates - phy driver updates - mhi driver updates - interconnect driver udpates - fsl-mc bus driver updates - random driver fix - some small misc driver updates (rtsx, pvpanic, etc.) All of these have been in linux-next for a while, with the only reported issue being a merge conflict due to the dfl_device_id addition from the fpga subsystem in here" * tag 'char-misc-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (311 commits) spmi: spmi-pmic-arb: Fix hw_irq overflow Documentation: coresight: Add PID tracing description coresight: etm-perf: Support PID tracing for kernel at EL2 coresight: etm-perf: Clarify comment on perf options ACRN: update MAINTAINERS: mailing list is subscribers-only regmap: sdw-mbq: use MODULE_LICENSE("GPL") regmap: sdw: use no_pm routines for SoundWire 1.2 MBQ regmap: sdw: use _no_pm functions in regmap_read/write soundwire: intel: fix possible crash when no device is detected MAINTAINERS: replace my with email with replacements mhi: Fix double dma free uapi: map_to_7segment: Update example in documentation uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue firewire: replace tricky statement by two simple ones vme: make remove callback return void firmware: google: make coreboot driver's remove callback return void firmware: xilinx: Use explicit values for all enum values sample/acrn: Introduce a sample of HSM ioctl interface usage virt: acrn: Introduce an interface for Service VM to control vCPU ...
2021-02-23Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2-6/+2
Pull ARM updates from Russell King: - Generalise byte swapping assembly - Update debug addresses for STI - Validate start of physical memory with DTB - Do not clear SCTLR.nTLSMD in decompressor - amba/locomo/sa1111 devices remove method return type is void - address markers for KASAN in page table dump * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 9065/1: OABI compat: fix build when EPOLL is not enabled ARM: 9055/1: mailbox: arm_mhuv2: make remove callback return void amba: Make use of bus_type functions amba: Make the remove callback return void vfio: platform: simplify device removal amba: reorder functions amba: Fix resource leak for drivers without .remove ARM: 9054/1: arch/arm/mm/mmu.c: Remove duplicate header ARM: 9053/1: arm/mm/ptdump:Add address markers for KASAN regions ARM: 9051/1: vdso: remove unneded extra-y addition ARM: 9050/1: Kconfig: Select ARCH_HAVE_NMI_SAFE_CMPXCHG where possible ARM: 9049/1: locomo: make locomo bus's remove callback return void ARM: 9048/1: sa1111: make sa1111 bus's remove callback return void ARM: 9047/1: smp: remove unused variable ARM: 9046/1: decompressor: Do not clear SCTLR.nTLSMD for ARMv7+ cores ARM: 9045/1: uncompress: Validate start of physical memory against passed DTB ARM: 9042/1: debug: no uncompress debugging while semihosting ARM: 9041/1: sti LL_UART: add STiH418 SBC UART0 support ARM: 9040/1: use DEBUG_UART_PHYS and DEBUG_UART_VIRT for sti LL_UART ARM: 9039/1: assembler: generalize byte swapping macro into rev_l
2021-02-22Merge tag 'iommu-updates-v5.12' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu updates from Joerg Roedel: - ARM SMMU and Mediatek updates from Will Deacon: - Support for MT8192 IOMMU from Mediatek - Arm v7s io-pgtable extensions for MT8192 - Removal of TLBI_ON_MAP quirk - New Qualcomm compatible strings - Allow SVA without hardware broadcast TLB maintenance on SMMUv3 - Virtualization Host Extension support for SMMUv3 (SVA) - Allow SMMUv3 PMU perf driver to be built independently from IOMMU - Some tidy-up in IOVA and core code - Conversion of the AMD IOMMU code to use the generic IO-page-table framework - Intel VT-d updates from Lu Baolu: - Audit capability consistency among different IOMMUs - Add SATC reporting structure support - Add iotlb_sync_map callback support - SDHI support for Renesas IOMMU driver - Misc cleanups and other small improvments * tag 'iommu-updates-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (94 commits) iommu/amd: Fix performance counter initialization MAINTAINERS: repair file pattern in MEDIATEK IOMMU DRIVER iommu/mediatek: Fix error code in probe() iommu/mediatek: Fix unsigned domid comparison with less than zero iommu/vt-d: Parse SATC reporting structure iommu/vt-d: Add new enum value and structure for SATC iommu/vt-d: Add iotlb_sync_map callback iommu/vt-d: Move capability check code to cap_audit files iommu/vt-d: Audit IOMMU Capabilities and add helper functions iommu/vt-d: Fix 'physical' typos iommu: Properly pass gfp_t in _iommu_map() to avoid atomic sleeping iommu/vt-d: Fix compile error [-Werror=implicit-function-declaration] driver/perf: Remove ARM_SMMU_V3_PMU dependency on ARM_SMMU_V3 MAINTAINERS: Add entry for MediaTek IOMMU iommu/mediatek: Add mt8192 support iommu/mediatek: Remove unnecessary check in attach_device iommu/mediatek: Support master use iova over 32bit iommu/mediatek: Add iova reserved function iommu/mediatek: Support for multi domains iommu/mediatek: Add get_domain_id from dev->dma_range_map ...
2021-02-11Merge tag 'memory-controller-drv-5.12-2' of ↵Arnd Bergmann3-9/+9
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers Memory controller drivers for v5.12, part two Two minor cleanups and one fix for compile testing (when !CONFIG_OF). * tag 'memory-controller-drv-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE memory: samsung: exynos5422-dmc: Correct function names in kerneldoc memory: ti-emif-pm: Drop of_match_ptr from of_device_id table Link: https://lore.kernel.org/r/20210211081829.7317-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-08memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with ↵Jiapeng Chong1-6/+6
DEFINE_DEBUGFS_ATTRIBUTE Fix the following coccicheck warning: drivers/memory/tegra/tegra186-emc.c:158:0-23: WARNING: tegra186_emc_debug_max_rate_fops should be defined with DEFINE_DEBUGFS_ATTRIBUTE. Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/1612684970-125948-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-02-08memory: samsung: exynos5422-dmc: Correct function names in kerneldocKrzysztof Kozlowski1-2/+2
Correct kerneldoc to fix W=1 warnings: drivers/memory/samsung/exynos5422-dmc.c:290: warning: expecting prototype for find_target_freq_id(). Prototype was for find_target_freq_idx() instead drivers/memory/samsung/exynos5422-dmc.c:1015: warning: expecting prototype for exynos5_dmc_align_initial_frequency(). Prototype was for exynos5_dmc_align_init_freq() instead Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://lore.kernel.org/r/20210206111715.20774-1-krzk@kernel.org
2021-02-08memory: ti-emif-pm: Drop of_match_ptr from of_device_id tableKrzysztof Kozlowski1-1/+1
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it might be not relevant here). This fixes compile warning (!CONFIG_OF with clang): drivers/memory/ti-emif-pm.c:238:34: warning: unused variable 'ti_emif_of_match' [-Wunused-const-variable] Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20210206111343.19273-1-krzk@kernel.org
2021-02-05Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm into ↵Greg Kroah-Hartman2-6/+2
char-misc-next This merges from linux-arm at 860660fd829e ("ARM: 9055/1: mailbox: arm_mhuv2: make remove callback return void") into char-misc-next to get the amba fixes from Uwe. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-03Merge tag 'memory-controller-drv-tegra-5.12' of ↵Arnd Bergmann6-62/+425
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers Memory controller drivers for v5.12 - Tegra SoC 1. Make the tegra124-emc driver modular. 2. Add interconnect support to Tegra124 memory controller drivers. 3. Minor fixes. * tag 'memory-controller-drv-tegra-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: tegra: Remove calls to dev_pm_opp_set_clkname() memory: tegra: Check whether reset is already asserted memory: tegra124: Support interconnect framework memory: tegra124-emc: Continue probing if timings are missing in device-tree memory: tegra124-emc: Make driver modular Link: https://lore.kernel.org/r/20210131180109.11510-2-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-02-02amba: Make the remove callback return voidUwe Kleine-König2-6/+2
All amba drivers return 0 in their remove callback. Together with the driver core ignoring the return value anyhow, it doesn't make sense to return a value here. Change the remove prototype to return void, which makes it explicit that returning an error value doesn't work as expected. This simplifies changing the core remove callback to return void, too. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> # for drivers/memory Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> # for hwtracing/coresight Acked-By: Vinod Koul <vkoul@kernel.org> # for dmaengine Acked-by: Guenter Roeck <linux@roeck-us.net> # for watchdog Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C Acked-by: Takashi Iwai <tiwai@suse.de> # for sound Acked-by: Vladimir Zapolskiy <vz@mleia.com> # for memory/pl172 Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20210126165835.687514-5-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2021-02-01iommu/mediatek: Support master use iova over 32bitYong Wu1-0/+7
After extending v7s, our pagetable already support iova reach 16GB(34bit). the master got the iova via dma_alloc_attrs may reach 34bits, but its HW register still is 32bit. then how to set the bit32/bit33 iova? this depend on a SMI larb setting(bank_sel). we separate whole 16GB iova to four banks: bank: 0: 0~4G; 1: 4~8G; 2: 8-12G; 3: 12-16G; The bank number is (iova >> 32). We will preassign which bank the larbs belong to. currently we don't have a interface for master to adjust its bank number. Each a bank is a iova_region which is a independent iommu-domain. the iova range for each iommu-domain can't cross 4G. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> #for memory part Reviewed-by: Tomasz Figa <tfiga@chromium.org> Link: https://lore.kernel.org/r/20210111111914.22211-31-yong.wu@mediatek.com Signed-off-by: Will Deacon <will@kernel.org>
2021-02-01iommu/mediatek: Use the common mtk-memory-port.hYong Wu1-0/+1
Use the common memory header(larb-port) in the source code. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Link: https://lore.kernel.org/r/20210111111914.22211-9-yong.wu@mediatek.com Signed-off-by: Will Deacon <will@kernel.org>
2021-01-29memory: tegra: Remove calls to dev_pm_opp_set_clkname()Viresh Kumar3-33/+6
There is no point calling dev_pm_opp_set_clkname() with the "name" parameter set to NULL, this is already done by the OPP core at setup time and should work as it is. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/0f22cc1791d8b88c50a9790c2dc19455b34ec7b0.1611742564.git.viresh.kumar@linaro.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-26memory: mtk-smi: Allow building as moduleYong Wu2-1/+10
Add support for building the SMI driver as module. Switch MTK_SMI to tristate, and add module_exit/module_license. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Link: https://lore.kernel.org/r/20210126060055.11050-1-yong.wu@mediatek.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-25memory: ti-aemif: Drop child node when jumping out loopPan Bian1-2/+6
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 <bianpan2016@163.com> Link: https://lore.kernel.org/r/20210121090359.61763-1-bianpan2016@163.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-23memory: tegra: Check whether reset is already assertedDmitry Osipenko1-0/+7
Check whether memory client reset is already asserted in order to prevent DMA-flush error on trying to re-assert an already asserted reset. This becomes a problem once PMC GENPD is enabled to use memory resets since GENPD will get a error and fail to toggle power domain. PMC GENPDs can't be toggled safely without holding memory reset on Tegra and we're about to fix this. Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30 Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20 Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30 Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20210119235210.13006-1-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-23memory: mtk-smi: Use platform_register_driversYong Wu1-19/+6
In this file, we have 2 drivers, smi-common and smi-larb. Use platform_register_drivers. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Link: https://lore.kernel.org/r/20210121062429.26504-2-yong.wu@mediatek.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-07memory: dfl-emif: add the DFL EMIF private feature driverXu Yilun3-0/+218
This driver is for the EMIF private feature implemented under FPGA Device Feature List (DFL) framework. It is used to expose memory interface status information as well as memory clearing control. The purpose of memory clearing block is to zero out all private memory when FPGA is to be reprogrammed. This gives users a reliable method to prevent potential data leakage. [mdf@kernel.org: Fixed up ABI doc] Reviewed-by: Tom Rix <trix@redhat.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Xu Yilun <yilun.xu@intel.com> Signed-off-by: Russ Weight <russell.h.weight@intel.com> Link: https://lore.kernel.org/r/20210107043714.991646-9-mdf@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-05memory: renesas-rpc-if: Add RZ/G2 to Kconfig descriptionAdam Ford1-3/+3
The Renesas RPC-IF is present on the RZ/G2 Series. Add that to the description. Suggested-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20210102115412.3402059-2-aford173@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-05memory: tegra124: Support interconnect frameworkDmitry Osipenko3-12/+391
Now Internal and External memory controllers are memory interconnection providers. This allows us to use interconnect API for tuning of memory configuration. EMC driver now supports OPPs and DVFS. Tested-by: Nicolas Chauvet <kwizart@gmail.com> Acked-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201228154920.18846-4-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-05memory: tegra124-emc: Continue probing if timings are missing in device-treeDmitry Osipenko1-17/+9
EMC driver will become mandatory after turning it into interconnect provider because interconnect users, like display controller driver, will fail to probe using newer device-trees that have interconnect properties. Thus make EMC driver to probe even if timings are missing in device-tree. Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201228154920.18846-3-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-05memory: tegra124-emc: Make driver modularDmitry Osipenko2-11/+23
Add modularization support to the Tegra124 EMC driver, which now can be compiled as a loadable kernel module. Note that EMC clock must be registered at clk-init time, otherwise PLLM will be disabled as unused clock at boot time if EMC driver is compiled as a module. Hence add a prepare/complete callbacks. similarly to what is done for the Tegra20/30 EMC drivers. Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201228154920.18846-2-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-03memory: emif: Use DEFINE_SPINLOCK() for spinlockZheng Yongjun1-2/+1
Spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20201228135056.28511-1-zhengyongjun3@huawei.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2021-01-03memory: mtk-smi: Fix PM usage counter unbalance in mtk_smi opsZhang Qilong1-2/+2
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 <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20201123102118.3866195-1-zhangqilong3@huawei.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-12-09Merge tag 'memory-controller-drv-tegra-5.11-3' of ↵Arnd Bergmann4-50/+516
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers Memory controller drivers for v5.11 - Tegra SoC, part two Continuation of work on Tegra SoC memory controllers towards adding interconnect support and integration with devfreq. This brings few more patches including one which removes/fixes annoying warning if the DTS patches get applied. This is expected and only informs that new features of Tegra memory controller drivers will not be enabled however the warning itself could look worrying. * tag 'memory-controller-drv-tegra-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: tegra30: Support interconnect framework memory: tegra20: Support hardware versioning and clean up OPP table initialization dt-bindings: memory: tegra20-emc: Document opp-supported-hw property Link: https://lore.kernel.org/r/20201207075758.5501-2-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-09Merge tag 'memory-controller-drv-5.11-2' of ↵Arnd Bergmann3-15/+7
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers Memory controller drivers for v5.11, part two 1. Several fixes for Renesas RPC-IF driver. 2. Correct compile testing of TI EMIF SRAM driver. 3. Fix potential NULL pointer in JZ4780 NEMC driver. * tag 'memory-controller-drv-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe() memory: ti-emif-sram: only build for ARMv7 memory: renesas-rpc-if: Make rpcif_enable/disable_rpm() as static inline memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe() memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer() Link: https://lore.kernel.org/r/20201207075758.5501-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-12-05memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()Zhang Changzhong1-0/+2
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 <zhangchangzhong@huawei.com> Acked-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/1607070717-32880-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-12-05memory: ti-emif-sram: only build for ARMv7Arnd Bergmann1-1/+1
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 <arnd@arndb.de> Link: https://lore.kernel.org/r/20201203230832.1481767-1-arnd@kernel.org Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-12-05memory: tegra30: Support interconnect frameworkDmitry Osipenko3-22/+496
Now Internal and External memory controllers are memory interconnection providers. This allows us to use interconnect API for tuning of memory configuration. EMC driver now supports OPPs and DVFS. MC driver now supports tuning of memory arbitration latency, which needs to be done for ISO memory clients, like a Display client for example. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Acked-by: Georgi Djakov <georgi.djakov@linaro.org> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20201203192439.16177-4-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-12-05memory: tegra20: Support hardware versioning and clean up OPP table ↵Dmitry Osipenko1-28/+20
initialization Support hardware versioning, which is now required for Tegra20 EMC OPP. Clean up OPP table initialization by using a error code returned by OPP API for judging about the OPP table presence in a device-tree and remove OPP regulator initialization because we're now going to use power domain instead of a raw regulator. This puts Tegra20 EMC OPP preparation on par with the Tegra30/124 EMC drivers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20201203192439.16177-3-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-28memory: renesas-rpc-if: Make rpcif_enable/disable_rpm() as static inlineLad Prabhakar1-13/+0
Define rpcif_enable_rpm() and rpcif_disable_rpm() as static inline in the header instead of exporting them. Suggested-by: Pavel Machek <pavel@denx.de> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Pavel Machek (CIP) <pavel@denx.de> Link: https://lore.kernel.org/r/20201126191146.8753-5-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-28memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()Lad Prabhakar1-0/+2
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 <pavel@denx.de> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Pavel Machek (CIP) <pavel@denx.de> 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 <krzk@kernel.org>
2020-11-28memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in ↵Lad Prabhakar1-1/+1
rpcif_{enable,disable}_rpm 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 <geert+renesas@glider.be> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com> 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 <krzk@kernel.org>
2020-11-28memory: renesas-rpc-if: Return correct value to the caller of ↵Lad Prabhakar1-1/+2
rpcif_manual_xfer() 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 <pavel@denx.de> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Sergei Shtylyov <sergei.shtylyov@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Pavel Machek (CIP) <pavel@denx.de> 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 <krzk@kernel.org>
2020-11-27Merge tag 'memory-controller-drv-tegra-5.11-2' of ↵Arnd Bergmann12-168/+901
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers Memory controller drivers for v5.11 - Tegra SoC There is a bigger work from Dmitry Osipenko around Tegra SoC memory controller drivers, mostly towards adding interconnect support and integration with devfreq. This work touches all Tegra memory controller drivers and also few other SoC-related parts. It's not yet finished but the intermediate stage seems ready to merge. Beside that Tegra 210 memory controller got few fixes and received new swgroups (work of Nicolin Chen). * tag 'memory-controller-drv-tegra-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: (38 commits) memory: tegra30-emc: Remove unnecessary of_node_put in tegra_emc_probe memory: tegra: Complete tegra210_swgroups memory: tegra30-emc: Continue probing if timings are missing in device-tree memory: tegra30-emc: Make driver modular memory: tegra30: Add FIFO sizes to memory clients memory: tegra20-emc: Add devfreq support memory: tegra20-emc: Remove IRQ number from error message memory: tegra20-emc: Factor out clk initialization memory: tegra20-emc: Use dev_pm_opp_set_clkname() memory: tegra: Correct stub of devm_tegra_memory_controller_get() memory: tegra20: Support interconnect framework memory: tegra20-emc: Continue probing if timings are missing in device-tree memory: tegra20-emc: Make driver modular memory: tegra-mc: Add interconnect framework memory: tegra: Add missing latency allowness entry for Page Table Cache memory: tegra: Remove superfluous error messages around platform_get_irq() memory: tegra: Use devm_platform_ioremap_resource() memory: tegra: Add and use devm_tegra_memory_controller_get() dt-bindings: host1x: Document new interconnect properties dt-bindings: tegra30-actmon: Document OPP and interconnect properties ... Link: https://lore.kernel.org/r/20201126191241.23302-1-krzk@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-26memory: tegra30-emc: Remove unnecessary of_node_put in tegra_emc_probeNathan Chancellor1-3/+1
Clang warns: drivers/memory/tegra/tegra30-emc.c:1275:15: warning: variable 'np' is uninitialized when used here [-Wuninitialized] of_node_put(np); ^~ drivers/memory/tegra/tegra30-emc.c:1269:24: note: initialize the variable 'np' to silence this warning There does not need to be an of_node_put call in this error handling block after the shuffling of the np assignment. Remove it so there is no use of uninitialized memory. Fixes: 5e00fd90183a ("memory: tegra30-emc: Continue probing if timings are missing in device-tree") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201119195244.1517236-1-natechancellor@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra: Complete tegra210_swgroupsNicolin Chen1-0/+10
According to Tegra X1 TRM, there are missing swgroups in the tegra210_swgroups list. So this patch adds them to the list. Note that the TEGRA_SWGROUP_GPU (in list) should be actually TEGRA_SWGROUP_GPUB (in TRM), yet TEGRA_SWGROUP_GPU (in TRM) is not being used -- only TEGRA_SWGROUP_GPUB (in TRM) is. So this patch does not add TEGRA_SWGROUP_GPU (in TRM) and keeps TEGRA_SWGROUP_GPU (in list) as it is. Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20201008003746.25659-6-nicoleotsuka@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra30-emc: Continue probing if timings are missing in device-treeDmitry Osipenko1-14/+15
EMC driver will become mandatory after turning it into interconnect provider because interconnect users, like display controller driver, will fail to probe using newer device-trees that have interconnect properties. Thus make EMC driver to probe even if timings are missing in device-tree. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201111011456.7875-9-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra30-emc: Make driver modularDmitry Osipenko3-6/+16
Add modularization support to the Tegra30 EMC driver, which now can be compiled as a loadable kernel module. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201111011456.7875-8-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra30: Add FIFO sizes to memory clientsDmitry Osipenko1-0/+66
The latency allowness is calculated based on buffering capabilities of memory clients. Add FIFO sizes to the Tegra30 memory clients. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201111011456.7875-7-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra20-emc: Add devfreq supportDmitry Osipenko2-1/+92
Add devfreq support to the Tegra20 EMC driver. Memory utilization statistics will be periodically polled from the memory controller and appropriate minimum clock rate will be selected by the devfreq governor. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Link: https://lore.kernel.org/r/20201111011456.7875-5-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra20-emc: Remove IRQ number from error messageDmitry Osipenko1-1/+1
Remove IRQ number from error message since it doesn't add any useful information, especially because this number is virtual. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201111011456.7875-6-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra20-emc: Factor out clk initializationDmitry Osipenko1-23/+47
Factor out clk initialization and make it resource-managed. This makes easier to follow code and will help to make further changes cleaner. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201111011456.7875-4-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra20-emc: Use dev_pm_opp_set_clkname()Dmitry Osipenko1-11/+19
The dev_pm_opp_get_opp_table() shouldn't be used by drivers, use dev_pm_opp_set_clkname() instead. Suggested-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201111011456.7875-3-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra20: Support interconnect frameworkDmitry Osipenko3-4/+386
Now Internal and External Memory Controllers are memory interconnection providers. This allows us to use interconnect API for tuning of memory configuration. EMC driver now supports OPPs and DVFS. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201104164923.21238-36-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra20-emc: Continue probing if timings are missing in device-treeDmitry Osipenko1-18/+16
EMC driver will become mandatory after turning it into interconnect provider because interconnect users, like display controller driver, will fail to probe using newer device-trees that have interconnect properties. Thus make EMC driver to probe even if timings are missing in device-tree. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201104164923.21238-35-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra20-emc: Make driver modularDmitry Osipenko2-6/+13
Add modularization support to the Tegra20 EMC driver, which now can be compiled as a loadable kernel module. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20201104164923.21238-34-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra-mc: Add interconnect frameworkDmitry Osipenko3-0/+123
Add common SoC-agnostic ICC framework which turns Tegra Memory Controller into a memory interconnection provider. This allows us to use interconnect API for tuning of memory configurations. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Link: https://lore.kernel.org/r/20201104164923.21238-33-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra: Add missing latency allowness entry for Page Table CacheDmitry Osipenko3-0/+18
Add missing PTC memory client latency allowness entry to the Tegra MC drivers. This prevents erroneous clearing of MC_INTSTATUS 0x0 register during of the LA programming in tegra_mc_setup_latency_allowance() due to the missing entry. Note that this patch doesn't fix any known problems. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201104164923.21238-32-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-11-26memory: tegra: Remove superfluous error messages around platform_get_irq()Dmitry Osipenko3-7/+3
The platform_get_irq() prints error message telling that interrupt is missing, hence there is no need to duplicated that message in the drivers. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Link: https://lore.kernel.org/r/20201104164923.21238-31-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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