linux/drivers/soc, branch v6.4

Merge tag 'arm-fixes-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-06-10T20:01:09Z

Pull ARM SoC fixes from Arnd Bergmann: "Most of the changes this time are for the Qualcomm Snapdragon platforms. There are bug fixes for error handling in Qualcomm icc-bwmon, rpmh-rsc, ramp_controller and rmtfs driver as well as the AMD tee firmware driver and a missing initialization in the Arm ff-a firmware driver. The Qualcomm RPMh and EDAC drivers need some rework to work correctly on all supported chips. The DT fixes include: - i.MX8 fixes for gpio, pinmux and clock settings - ADS touchscreen gpio polarity settings in several machines - Address dtb warnings for caches, panel and input-enable properties on Qualcomm platforms - Incorrect data on qualcomm platforms fir SA8155P power domains, SM8550 LLCC, SC7180-lite SDRAM frequencies and SM8550 soundwire - Remoteproc firmware paths are corrected for Sony Xperia 10 IV" * tag 'arm-fixes-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (36 commits) firmware: arm_ffa: Set handle field to zero in memory descriptor ARM: dts: Fix erroneous ADS touchscreen polarities arm64: dts: imx8mn-beacon: Fix SPI CS pinmux arm64: dts: imx8-ss-dma: assign default clock rate for lpuarts arm64: dts: imx8qm-mek: correct GPIOs for USDHC2 CD and WP signals EDAC/qcom: Get rid of hardcoded register offsets EDAC/qcom: Remove superfluous return variable assignment in qcom_llcc_core_setup() arm64: dts: qcom: sm8550: Use the correct LLCC register scheme dt-bindings: cache: qcom,llcc: Fix SM8550 description arm64: dts: qcom: sc7180-lite: Fix SDRAM freq for misidentified sc7180-lite boards arm64: dts: qcom: sm8550: use uint16 for Soundwire interval soc: qcom: rpmhpd: Add SA8155P power domains arm64: dts: qcom: Split out SA8155P and use correct RPMh power domains dt-bindings: power: qcom,rpmpd: Add SA8155P soc: qcom: Rename ice to qcom_ice to avoid module name conflict soc: qcom: rmtfs: Fix error code in probe() soc: qcom: ramp_controller: Fix an error handling path in qcom_ramp_controller_probe() ARM: dts: at91: sama7g5ek: fix debounce delay property for shdwc ARM: at91: pm: fix imbalanced reference counter for ethernet devices arm64: dts: qcom: sm6375-pdx225: Fix remoteproc firmware paths ...

soc: fsl: cpm1: Fix TSA and QMC dependencies in case of COMPILE_TEST

2023-05-30T11:25:25Z

In order to compile tsa.c and qmc.c, CONFIG_CPM must be set. Without this dependency, the linker fails with some missing symbols for COMPILE_TEST configurations that need QMC without enabling CPM. Signed-off-by: Herve Codina Reported-by: kernel test robot Link: https://lore.kernel.org/oe-kbuild-all/202305160221.9XgweObz-lkp@intel.com/ Acked-by: Randy Dunlap Tested-by: Randy Dunlap # build-tested Link: https://lore.kernel.org/r/20230523085902.75837-2-herve.codina@bootlin.com Signed-off-by: Greg Kroah-Hartman

soc: qcom: rpmhpd: Add SA8155P power domains

2023-05-25T03:39:26Z

Add the power domains exposed by RPMh in the Qualcomm SA8155P platform. Turns out they differ from SM8150. Signed-off-by: Konrad Dybcio Tested-by: Bartosz Golaszewski Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230411-topic-hanaau-v2-2-fd3d70844b31@linaro.org

soc: qcom: Rename ice to qcom_ice to avoid module name conflict

2023-05-25T03:30:52Z

The following error was reported when building x86_64 allmodconfig: error: the following would cause module name conflict: drivers/soc/qcom/ice.ko drivers/net/ethernet/intel/ice/ice.ko Seems the 'ice' module name is already used by some Intel ethernet driver, so lets rename the Qualcomm Inline Crypto Engine (ICE) module from 'ice' to 'qcom_ice' to avoid any kind of errors/confusions. Reported-by: Stephen Rothwell Fixes: 2afbf43a4aec ("soc: qcom: Make the Qualcomm UFS/SDCC ICE a dedicated driver") Acked-by: Mukesh Ojha Signed-off-by: Abel Vesa Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230516082856.150214-1-abel.vesa@linaro.org

soc: qcom: rmtfs: Fix error code in probe()

2023-05-25T03:05:08Z

Return an error code if of_property_count_u32_elems() fails. Don't return success. Fixes: e656cd0bcf3d ("soc: qcom: rmtfs: Optionally map RMTFS to more VMs") Signed-off-by: Dan Carpenter Reviewed-by: Konrad Dybcio Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/76b21a14-70ff-4ca9-927d-587543c6699c@kili.mountain

soc: qcom: ramp_controller: Fix an error handling path in qcom_ramp_controller_probe()

2023-05-25T03:02:10Z

'qrc' is known to be non-NULL at this point. Checking for 'qrc->desc' was expected instead, so use it. Fixes: a723c95fa137 ("soc: qcom: Add Qualcomm Ramp Controller driver") Signed-off-by: Christophe JAILLET Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/84727a79d0261b4112411aec23b553504015c02c.1681684138.git.christophe.jaillet@wanadoo.fr

soc: qcom: rpmh-rsc: drop redundant unsigned >=0 comparision

2023-05-15T02:07:50Z

Unsigned int "minor" is always >= 0 as reported by Smatch: drivers/soc/qcom/rpmh-rsc.c:1076 rpmh_rsc_probe() warn: always true condition '(drv->ver.minor >= 0) => (0-u32max >= 0)' Fixes: 88704a0cd719 ("soc: qcom: rpmh-rsc: Support RSC v3 minor versions") Signed-off-by: Krzysztof Kozlowski Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230513112913.176009-1-krzysztof.kozlowski@linaro.org

soc: qcom: icc-bwmon: fix incorrect error code passed to dev_err_probe()

2023-05-15T02:07:10Z

Pass to dev_err_probe() PTR_ERR from actual dev_pm_opp_find_bw_floor() call which failed, instead of previous ret which at this point is 0. Failure of dev_pm_opp_find_bw_floor() would result in prematurely ending the probe with success. Fixes smatch warnings: drivers/soc/qcom/icc-bwmon.c:776 bwmon_probe() warn: passing zero to 'dev_err_probe' drivers/soc/qcom/icc-bwmon.c:781 bwmon_probe() warn: passing zero to 'dev_err_probe' Reported-by: kernel test robot Reported-by: Dan Carpenter Link: https://lore.kernel.org/r/202305131657.76XeHDjF-lkp@intel.com/ Cc: Fixes: b9c2ae6cac40 ("soc: qcom: icc-bwmon: Add bandwidth monitoring driver") Signed-off-by: Krzysztof Kozlowski Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20230513111747.132532-1-krzysztof.kozlowski@linaro.org

Merge tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux

2023-04-27T23:36:55Z

Pull module updates from Luis Chamberlain: "The summary of the changes for this pull requests is: - Song Liu's new struct module_memory replacement - Nick Alcock's MODULE_LICENSE() removal for non-modules - My cleanups and enhancements to reduce the areas where we vmalloc module memory for duplicates, and the respective debug code which proves the remaining vmalloc pressure comes from userspace. Most of the changes have been in linux-next for quite some time except the minor fixes I made to check if a module was already loaded prior to allocating the final module memory with vmalloc and the respective debug code it introduces to help clarify the issue. Although the functional change is small it is rather safe as it can only *help* reduce vmalloc space for duplicates and is confirmed to fix a bootup issue with over 400 CPUs with KASAN enabled. I don't expect stable kernels to pick up that fix as the cleanups would have also had to have been picked up. Folks on larger CPU systems with modules will want to just upgrade if vmalloc space has been an issue on bootup. Given the size of this request, here's some more elaborate details: The functional change change in this pull request is the very first patch from Song Liu which replaces the 'struct module_layout' with a new 'struct module_memory'. The old data structure tried to put together all types of supported module memory types in one data structure, the new one abstracts the differences in memory types in a module to allow each one to provide their own set of details. This paves the way in the future so we can deal with them in a cleaner way. If you look at changes they also provide a nice cleanup of how we handle these different memory areas in a module. This change has been in linux-next since before the merge window opened for v6.3 so to provide more than a full kernel cycle of testing. It's a good thing as quite a bit of fixes have been found for it. Jason Baron then made dynamic debug a first class citizen module user by using module notifier callbacks to allocate / remove module specific dynamic debug information. Nick Alcock has done quite a bit of work cross-tree to remove module license tags from things which cannot possibly be module at my request so to: a) help him with his longer term tooling goals which require a deterministic evaluation if a piece a symbol code could ever be part of a module or not. But quite recently it is has been made clear that tooling is not the only one that would benefit. Disambiguating symbols also helps efforts such as live patching, kprobes and BPF, but for other reasons and R&D on this area is active with no clear solution in sight. b) help us inch closer to the now generally accepted long term goal of automating all the MODULE_LICENSE() tags from SPDX license tags In so far as a) is concerned, although module license tags are a no-op for non-modules, tools which would want create a mapping of possible modules can only rely on the module license tag after the commit 8b41fc4454e ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"). Nick has been working on this *for years* and AFAICT I was the only one to suggest two alternatives to this approach for tooling. The complexity in one of my suggested approaches lies in that we'd need a possible-obj-m and a could-be-module which would check if the object being built is part of any kconfig build which could ever lead to it being part of a module, and if so define a new define -DPOSSIBLE_MODULE [0]. A more obvious yet theoretical approach I've suggested would be to have a tristate in kconfig imply the same new -DPOSSIBLE_MODULE as well but that means getting kconfig symbol names mapping to modules always, and I don't think that's the case today. I am not aware of Nick or anyone exploring either of these options. Quite recently Josh Poimboeuf has pointed out that live patching, kprobes and BPF would benefit from resolving some part of the disambiguation as well but for other reasons. The function granularity KASLR (fgkaslr) patches were mentioned but Joe Lawrence has clarified this effort has been dropped with no clear solution in sight [1]. In the meantime removing module license tags from code which could never be modules is welcomed for both objectives mentioned above. Some developers have also welcomed these changes as it has helped clarify when a module was never possible and they forgot to clean this up, and so you'll see quite a bit of Nick's patches in other pull requests for this merge window. I just picked up the stragglers after rc3. LWN has good coverage on the motivation behind this work [2] and the typical cross-tree issues he ran into along the way. The only concrete blocker issue he ran into was that we should not remove the MODULE_LICENSE() tags from files which have no SPDX tags yet, even if they can never be modules. Nick ended up giving up on his efforts due to having to do this vetting and backlash he ran into from folks who really did *not understand* the core of the issue nor were providing any alternative / guidance. I've gone through his changes and dropped the patches which dropped the module license tags where an SPDX license tag was missing, it only consisted of 11 drivers. To see if a pull request deals with a file which lacks SPDX tags you can just use: ./scripts/spdxcheck.py -f \ $(git diff --name-only commid-id | xargs echo) You'll see a core module file in this pull request for the above, but that's not related to his changes. WE just need to add the SPDX license tag for the kernel/module/kmod.c file in the future but it demonstrates the effectiveness of the script. Most of Nick's changes were spread out through different trees, and I just picked up the slack after rc3 for the last kernel was out. Those changes have been in linux-next for over two weeks. The cleanups, debug code I added and final fix I added for modules were motivated by David Hildenbrand's report of boot failing on a systems with over 400 CPUs when KASAN was enabled due to running out of virtual memory space. Although the functional change only consists of 3 lines in the patch "module: avoid allocation if module is already present and ready", proving that this was the best we can do on the modules side took quite a bit of effort and new debug code. The initial cleanups I did on the modules side of things has been in linux-next since around rc3 of the last kernel, the actual final fix for and debug code however have only been in linux-next for about a week or so but I think it is worth getting that code in for this merge window as it does help fix / prove / evaluate the issues reported with larger number of CPUs. Userspace is not yet fixed as it is taking a bit of time for folks to understand the crux of the issue and find a proper resolution. Worst come to worst, I have a kludge-of-concept [3] of how to make kernel_read*() calls for modules unique / converge them, but I'm currently inclined to just see if userspace can fix this instead" Link: https://lore.kernel.org/all/Y/kXDqW+7d71C4wz@bombadil.infradead.org/ [0] Link: https://lkml.kernel.org/r/025f2151-ce7c-5630-9b90-98742c97ac65@redhat.com [1] Link: https://lwn.net/Articles/927569/ [2] Link: https://lkml.kernel.org/r/20230414052840.1994456-3-mcgrof@kernel.org [3] * tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: (121 commits) module: add debugging auto-load duplicate module support module: stats: fix invalid_mod_bytes typo module: remove use of uninitialized variable len module: fix building stats for 32-bit targets module: stats: include uapi/linux/module.h module: avoid allocation if module is already present and ready module: add debug stats to help identify memory pressure module: extract patient module check into helper modules/kmod: replace implementation with a semaphore Change DEFINE_SEMAPHORE() to take a number argument module: fix kmemleak annotations for non init ELF sections module: Ignore L0 and rename is_arm_mapping_symbol() module: Move is_arm_mapping_symbol() to module_symbol.h module: Sync code of is_arm_mapping_symbol() scripts/gdb: use mem instead of core_layout to get the module address interconnect: remove module-related code interconnect: remove MODULE_LICENSE in non-modules zswap: remove MODULE_LICENSE in non-modules zpool: remove MODULE_LICENSE in non-modules x86/mm/dump_pagetables: remove MODULE_LICENSE in non-modules ...

Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2023-04-27T18:53:57Z

Pull driver core updates from Greg KH: "Here is the large set of driver core changes for 6.4-rc1. Once again, a busy development cycle, with lots of changes happening in the driver core in the quest to be able to move "struct bus" and "struct class" into read-only memory, a task now complete with these changes. This will make the future rust interactions with the driver core more "provably correct" as well as providing more obvious lifetime rules for all busses and classes in the kernel. The changes required for this did touch many individual classes and busses as many callbacks were changed to take const * parameters instead. All of these changes have been submitted to the various subsystem maintainers, giving them plenty of time to review, and most of them actually did so. Other than those changes, included in here are a small set of other things: - kobject logging improvements - cacheinfo improvements and updates - obligatory fw_devlink updates and fixes - documentation updates - device property cleanups and const * changes - firwmare loader dependency fixes. All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits) device property: make device_property functions take const device * driver core: update comments in device_rename() driver core: Don't require dynamic_debug for initcall_debug probe timing firmware_loader: rework crypto dependencies firmware_loader: Strip off \n from customized path zram: fix up permission for the hot_add sysfs file cacheinfo: Add use_arch[|_cache]_info field/function arch_topology: Remove early cacheinfo error message if -ENOENT cacheinfo: Check cache properties are present in DT cacheinfo: Check sib_leaf in cache_leaves_are_shared() cacheinfo: Allow early level detection when DT/ACPI info is missing/broken cacheinfo: Add arm64 early level initializer implementation cacheinfo: Add arch specific early level initializer tty: make tty_class a static const structure driver core: class: remove struct class_interface * from callbacks driver core: class: mark the struct class in struct class_interface constant driver core: class: make class_register() take a const * driver core: class: mark class_release() as taking a const * driver core: remove incorrect comment for device_create* MIPS: vpe-cmp: remove module owner pointer from struct class usage. ...