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2017-11-17Merge tag 'armsoc-drivers' of ↵Linus Torvalds3-30/+747
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "This branch contains platform-related driver updates for ARM and ARM64, these are the areas that bring the changes: New drivers: - driver support for Renesas R-Car V3M (R8A77970) - power management support for Amlogic GX - a new driver for the Tegra BPMP thermal sensor - a new bus driver for Technologic Systems NBUS Changes for subsystems that prefer to merge through arm-soc: - the usual updates for reset controller drivers from Philipp Zabel, with five added drivers for SoCs in the arc, meson, socfpa, uniphier and mediatek families - updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla, Heiner Kallweit and Lorenzo Pieralisi Changes specific to some ARM-based SoC - the Freescale/NXP DPAA QBMan drivers from PowerPC can now work on ARM as well - several changes for power management on Broadcom SoCs - various improvements on Qualcomm, Broadcom, Amlogic, Atmel, Mediatek - minor Cleanups for Samsung, TI OMAP SoCs" [ NOTE! This doesn't work without the previous ARM SoC device-tree pull, because the R8A77970 driver is missing a header file that came from that pull. The fact that this got merged afterwards only fixes it at this point, and bisection of that driver will fail if/when you walk into the history of that driver. - Linus ] * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (96 commits) soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader bus: add driver for the Technologic Systems NBUS memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg() soc: qcom: remove unused label soc: amlogic: gx pm domain: add PM and OF dependencies drivers/firmware: psci_checker: Add missing destroy_timer_on_stack() dt-bindings: power: add amlogic meson power domain bindings soc: amlogic: add Meson GX VPU Domains driver soc: qcom: Remote filesystem memory driver dt-binding: soc: qcom: Add binding for rmtfs memory of: reserved_mem: Accessor for acquiring reserved_mem of/platform: Generalize /reserved-memory handling soc: mediatek: pwrap: fix fatal compiler error soc: mediatek: pwrap: fix compiler errors arm64: mediatek: cleanup message for platform selection soc: Allow test-building of MediaTek drivers soc: mediatek: place Kconfig for all SoC drivers under menu soc: mediatek: pwrap: add support for MT7622 SoC soc: mediatek: pwrap: add common way for setup CS timing extenstion soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap ..
2017-11-07Merge tag 'gpmc-omap-for-v4.15-pt2' of https://github.com/rogerq/linux into ↵Arnd Bergmann1-29/+24
next/drivers Pull "OMAP-GPMC: driver updates for v4.15, part 2" from Roger Quadros: * get rid of unused function gpmc_update_nand_reg(). * tag 'gpmc-omap-for-v4.15-pt2' of https://github.com/rogerq/linux: memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
2017-11-03memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()Ladislav Michl1-29/+24
Deprecated gpmc_update_nand_reg() is no longer used, remove. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Roger Quadros <rogerq@ti.com>
2017-11-02Merge tag 'arm-soc/for-4.15/drivers-part2' of ↵Arnd Bergmann1-8/+29
http://github.com/Broadcom/stblinux into next/drivers Pull "Broadcom drivers changes for 4.15 (part 2)" from Florian Fainelli: This pull request contains Broadcom ARM/ARM64/MIPS SoCs changes for 4.15 (second part), please pull the following: - Markus updates the Broadcom STB DPFE driver to avoid loading the firmware when unnecessary to accomodate for specific platform restrictions - Florian adds support for the Broadcom Hurricane 2 SoC iProc PLL clock needed to get the proper CPU clock frequency * tag 'arm-soc/for-4.15/drivers-part2' of http://github.com/Broadcom/stblinux: clk: bcm: Add Broadcom Hurricane 2 clock support memory: brcmstb: dpfe: skip downloading firmware when possible memory: brcmstb: dpfe: introduce is_dcpu_enabled()
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2-0/+2
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-20Merge tag 'gpmc-omap-for-v4.15' of https://github.com/rogerq/linux into ↵Arnd Bergmann1-1/+0
next/drivers Pull "OMAP-GPMC: driver updates for v4.15" from Roger Quadros: * get rid of unused field in platform data structure. * tag 'gpmc-omap-for-v4.15' of https://github.com/rogerq/linux: memory: omap-gpmc: Drop gpmc_status
2017-10-17memory: omap-gpmc: Drop gpmc_statusLadislav Michl1-1/+0
This field is no longer used, drop it. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Roger Quadros <rogerq@ti.com>
2017-10-07memory: brcmstb: dpfe: skip downloading firmware when possibleMarkus Mayer1-2/+14
We want to skip downloading the DPFE firmware from Linux if it was already downloaded by the boot loader. The driver now checks if the DCPU is already running and, if so, whether it can process commands. If the DCPU processes commands successfully, the driver skips the firmware download step. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-10-07memory: brcmstb: dpfe: introduce is_dcpu_enabled()Markus Mayer1-6/+15
In order to check whether or not the DCPU is running, we introduce a function called is_dcpu_enabled(). Signed-off-by: Markus Mayer <mmayer@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-09-18memory: brcmstb: Add driver for DPFEMarkus Mayer2-0/+702
This driver allows access to DRAM properties, such as the refresh rate, via the Broadcom STB DDR PHY Front End (DPFE). The refresh rate can be used as indirect indicator of the DRAM temperature. The driver also allows setting of the sampling interval. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-09-11Merge tag 'armsoc-drivers' of ↵Linus Torvalds4-29/+28
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Olof Johansson: "This branch contains platform-related driver updates for ARM and ARM64. Among them: - Reset driver updates: + New API for dealing with arrays of resets + Make unimplemented {de,}assert return success on shared resets + MSDKv1 driver + Removal of obsolete Gemini reset driver + Misc updates for sunxi and Uniphier - SoC drivers: + Platform SoC driver registration on Tegra + Shuffle of Qualcomm drivers into a submenu + Allwinner A64 support for SRAM + Renesas R-Car R3 support + Power domains for Rockchip RK3366 - Misc updates and smaller fixes for TEE and memory driver subsystems" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits) firmware: arm_scpi: fix endianness of dev_id in struct dev_pstate_set soc/tegra: fuse: Add missing semi-colon soc/tegra: Restrict SoC device registration to Tegra drivers: soc: sunxi: add support for A64 and its SRAM C drivers: soc: sunxi: add support for remapping func value to reg value drivers: soc: sunxi: fix error processing on base address when claiming dt-bindings: add binding for Allwinner A64 SRAM controller and SRAM C bus: sunxi-rsb: Enable by default for ARM64 soc/tegra: Register SoC device firmware: tegra: set drvdata earlier memory: Convert to using %pOF instead of full_name soc: Convert to using %pOF instead of full_name bus: Convert to using %pOF instead of full_name firmware: Convert to using %pOF instead of full_name soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC soc: mediatek: add header files required for MT7622 SCPSYS dt-binding soc: mediatek: reduce code duplication of scpsys_probe across all SoCs dt-bindings: soc: update the binding document for SCPSYS on MediaTek MT7622 SoC reset: uniphier: add analog amplifiers reset control reset: uniphier: add video input subsystem reset control ...
2017-09-10Merge tag 'iommu-updates-v4.14' of ↵Linus Torvalds1-23/+73
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "Slightly more changes than usual this time: - KDump Kernel IOMMU take-over code for AMD IOMMU. The code now tries to preserve the mappings of the kernel so that master aborts for devices are avoided. Master aborts cause some devices to fail in the kdump kernel, so this code makes the dump more likely to succeed when AMD IOMMU is enabled. - common flush queue implementation for IOVA code users. The code is still optional, but AMD and Intel IOMMU drivers had their own implementation which is now unified. - finish support for iommu-groups. All drivers implement this feature now so that IOMMU core code can rely on it. - finish support for 'struct iommu_device' in iommu drivers. All drivers now use the interface. - new functions in the IOMMU-API for explicit IO/TLB flushing. This will help to reduce the number of IO/TLB flushes when IOMMU drivers support this interface. - support for mt2712 in the Mediatek IOMMU driver - new IOMMU driver for QCOM hardware - system PM support for ARM-SMMU - shutdown method for ARM-SMMU-v3 - some constification patches - various other small improvements and fixes" * tag 'iommu-updates-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (87 commits) iommu/vt-d: Don't be too aggressive when clearing one context entry iommu: Introduce Interface for IOMMU TLB Flushing iommu/s390: Constify iommu_ops iommu/vt-d: Avoid calling virt_to_phys() on null pointer iommu/vt-d: IOMMU Page Request needs to check if address is canonical. arm/tegra: Call bus_set_iommu() after iommu_device_register() iommu/exynos: Constify iommu_ops iommu/ipmmu-vmsa: Make ipmmu_gather_ops const iommu/ipmmu-vmsa: Rereserving a free context before setting up a pagetable iommu/amd: Rename a few flush functions iommu/amd: Check if domain is NULL in get_domain() and return -EBUSY iommu/mediatek: Fix a build warning of BIT(32) in ARM iommu/mediatek: Fix a build fail of m4u_type iommu: qcom: annotate PM functions as __maybe_unused iommu/pamu: Fix PAMU boot crash memory: mtk-smi: Degrade SMI init to module_init iommu/mediatek: Enlarge the validate PA range for 4GB mode iommu/mediatek: Disable iommu clock when system suspend iommu/mediatek: Move pgtable allocation into domain_alloc iommu/mediatek: Merge 2 M4U HWs into one iommu domain ...
2017-09-05mfd: syscon: atmel-smc: Add helper to retrieve register layoutLudovic Desroches1-4/+9
For HSMC controller, the register layout depends on the device i.e. the offset of setup, pulse, cycle, mode and timings registers is not the same. An helper is added to provide the correct register layout. Fixes: fe9d7cb22ef3 ("mfd: syscon: atmel-smc: Add new helpers to ease SMC regs manipulation") Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-01Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', ↵Joerg Roedel1-23/+73
'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next
2017-08-22memory: mtk-smi: Degrade SMI init to module_initYong Wu1-7/+4
The initialization of MediaTek power manager(SCPSYS) is builtin_platform_driver, and SMI must depend on power-domain. Thus, currently subsys_initcall for SMI is unnecessary, SMI will be always probe defered by power-domain. Degrade it to module_init. In addition, there are two small changes about the probe sequence: 1) Delete this two lines. if (!dev->pm_domain) return -EPROBE_DEFER; This is not helpful. the platform driver framework guarantee this. The "dev_pm_domain_attach" in the "platform_drv_probe" will return EPROBE_DEFER if its powerdomain is not ready. 2) Add the probe-defer for the smi-larb device should waiting for smi-common. In mt2712, there are 2 smi-commons, 10 smi-larbs. All will be probe-defered by the power-domain, there is seldom case that smi-larb probe done before smi-common. then it will hang like this: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = ffffff800a4e0000 [00000000] *pgd=00000000beffe003[ 17.610026] , *pud=00000000beffe003 ... [<ffffff800897fe04>] mtk_smi_enable+0x1c/0xd0 [<ffffff800897fee8>] mtk_smi_larb_get+0x30/0x98 [<ffffff80088edfa8>] mtk_mipicsi0_resume+0x38/0x1b8 [<ffffff8008634f44>] pm_generic_runtime_resume+0x3c/0x58 [<ffffff8008644ff8>] __genpd_runtime_resume+0x38/0x98 [<ffffff8008647434>] genpd_runtime_resume+0x164/0x220 [<ffffff80086372f8>] __rpm_callback+0x78/0xa0 [<ffffff8008637358>] rpm_callback+0x38/0xa0 [<ffffff8008638a4c>] rpm_resume+0x4a4/0x6f8 [<ffffff8008638d04>] __pm_runtime_resume+0x64/0xa0 [<ffffff80088ed05c>] mtk_mipicsi0_probe+0x40c/0xb70 [<ffffff800862cdc0>] platform_drv_probe+0x58/0xc0 [<ffffff800862a514>] driver_probe_device+0x284/0x438 [<ffffff800862a8ac>] __device_attach_driver+0xb4/0x160 [<ffffff8008627d58>] bus_for_each_drv+0x68/0xa8 [<ffffff800862a0a4>] __device_attach+0xd4/0x168 [<ffffff800862a9d4>] device_initial_probe+0x24/0x30 [<ffffff80086291d8>] bus_probe_device+0xa0/0xa8 [<ffffff8008629784>] deferred_probe_work_func+0x94/0xf0 [<ffffff80080f03a8>] process_one_work+0x1d8/0x6e0 Signed-off-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-22iommu/mediatek: Add mt2712 IOMMU supportYong Wu1-3/+51
The M4U IP blocks in mt2712 is MTK's generation2 M4U which use the ARM Short-descriptor like mt8173, and most of the HW registers are the same. The difference is that there are 2 M4U HWs in mt2712 while there's only one in mt8173. The purpose of 2 M4U HWs is for balance the bandwidth. Normally if there are 2 M4U HWs, there should be 2 iommu domains, each M4U has a iommu domain. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-16memory: Convert to using %pOF instead of full_nameRob Herring4-29/+28
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Roger Quadros <rogerq@ti.com> Cc: Nicolas Ferre <nicolas.ferre@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-08-15memory: mtk-smi: Handle return value of clk_prepare_enableArvind Yadav1-1/+4
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-04memory: mtk-smi: add larbid handle routineHonghui Zhang1-0/+12
In the commit 3c8f4ad85c4b ("memory/mediatek: add support for mt2701"), the larb->larbid was added but not initialized. Mediatek's gen1 smi need this hardware larbid information to get the register offset which controls whether enable iommu for this larb. This patch add the initialize routine for larbid. Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-04memory: mtk-smi: Use of_device_get_match_data helperHonghui Zhang1-12/+2
Replace custom code with generic helper to retrieve driver data. Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-07-26memory: atmel-ebi: Fix smc cycle xlate converterAlexander Dahl1-1/+1
The converter function for translating ns timings in register values was initialized with a wrong function pointer. This resulted in wrong register values also for the setup and pulse registers when configuring the EBI interface trough dts. Includes a small fix in a comment of the smc driver, which was probably just a copy'n'paste mistake. Signed-off-by: Alexander Dahl <ada@thorsis.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-07-26memory: atmel-ebi: Allow t_DF timings of zero nsAlexander Dahl1-2/+4
As reported in [1] and in [2] it's not possible to set the device tree property 'atmel,smc-tdf-ns' to zero, although the SoC allows a setting of 0ns for the t_DF time. Allow this setting by doing the same thing as in the atmel nand controller driver by setting ncycles to ATMEL_SMC_MODE_TDF_MIN if zero is set in the dts. [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-March/490966.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-July/520652.html Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Alexander Dahl <ada@thorsis.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-07-26memory: atmel-ebi: Fix smc timing return value evaluationAlexander Dahl1-1/+1
Setting optional EBI/SMC properties through device tree always fails due to wrong evaluation of the return value of atmel_ebi_xslate_smc_timings(). If you put some of those properties in your dts file, but not 'atmel,smc-tdf-ns' the local variable 'required' in atmel_ebi_xslate_smc_timings() stays on 'false' after the first 'if' block. This leads to setting 'ret' to -EINVAL in the first run of the following 'for' loop which is then the return value of this function. However if you set 'atmel,smc-tdf-ns' in the dts file and everything in atmel_ebi_xslate_smc_timings() works well, it returns the content of 'required' which is 'true' then. So the function atmel_ebi_xslate_smc_timings() always returns non-zero which lets its call in atmel_ebi_xslate_smc_config() always fail and thus returning -EINVAL, so the EBI configuration for this node fails. Judging from the following code evaluating the local 'required' variable in atmel_ebi_xslate_smc_config() and the call of caps->xlate_config in atmel_ebi_dev_setup() it's probably right to only let the call fail if a negative error code is returned. Signed-off-by: Alexander Dahl <ada@thorsis.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-07-05Merge tag 'armsoc-drivers' of ↵Linus Torvalds1-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "New SoC specific drivers: - NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later) based on the "BPMP" firmware - Clocksource and system controller drivers for the newly added Action Semi platforms (both arm and arm64). Reset subsystem, merged through arm-soc by tradition: - New drivers for Altera Stratix10, TI Keystone and Cortina Gemini SoCs - Various subsystem-wide cleanups Updates for existing SoC-specific drivers - TI GPMC (General Purpose Memory Controller) - Mediatek "scpsys" system controller support for MT6797 - Broadcom "brcmstb_gisb" bus arbitrer - ARM SCPI firmware - Renesas "SYSC" system controller One more driver update was submitted for the Freescale/NXP DPAA data path acceleration that has previously been used on PowerPC chips. I ended up postponing the merge until some API questions for its unusual MMIO access are resolved" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits) clocksource: owl: Add S900 support clocksource: Add Owl timer soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON firmware: tegra: Fix locking bugs in BPMP soc/tegra: flowctrl: Fix error handling soc/tegra: bpmp: Implement generic PM domains soc/tegra: bpmp: Update ABI header PM / Domains: Allow overriding the ->xlate() callback soc: brcmstb: enable drivers for ARM64 and BMIPS soc: renesas: Rework Kconfig and Makefile logic reset: Add the TI SCI reset driver dt-bindings: reset: Add TI SCI reset binding reset: use kref for reference counting soc: qcom: smsm: Improve error handling, quiesce probe deferral cpufreq: scpi: use new scpi_ops functions to remove duplicate code firmware: arm_scpi: add support to populate OPPs and get transition latency dt-bindings: reset: Add reset manager offsets for Stratix10 memory: omap-gpmc: add error message if bank-width property is absent memory: omap-gpmc: make dts snippet include semicolon reset: Add a Gemini reset controller ...
2017-06-19Merge tag 'omap-for-v4.13/gpmc-signed' of ↵Olof Johansson1-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers Few improvments for GPMC (General Purpose Memory Controller) found on TI SoCs to produce an error for missing bank-width and to make the bootloader timing debug output usable for device tree timings. * tag 'omap-for-v4.13/gpmc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: memory: omap-gpmc: add error message if bank-width property is absent memory: omap-gpmc: make dts snippet include semicolon Signed-off-by: Olof Johansson <olof@lixom.net>
2017-06-12Merge 4.12-rc5 into char-misc-nextGreg Kroah-Hartman1-1/+1
We want the char/misc driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-03memory: ti-aemif: Handle return value of clk_prepare_enableArvind Yadav1-1/+4
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-02Merge tag 'at91-4.12-fixes' of ↵Olof Johansson1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes Fixes for 4.12: Fix two compilation issues * tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: ARM: at91: select CONFIG_ARM_CPU_SUSPEND memory: atmel-ebi: mark PM ops as __maybe_unused Signed-off-by: Olof Johansson <olof@lixom.net>
2017-05-31memory: omap-gpmc: add error message if bank-width property is absentUwe Kleine-König1-1/+4
Instead of failing silently log a hint for the dt author about the reason of the failure. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-31memory: omap-gpmc: make dts snippet include semicolonUwe Kleine-König1-2/+2
In the device tree each property must be terminated with a semicolon, so include them in the output for easier cut-n-paste. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-16memory: omap-gpmc: Fix debug output for access widthTony Lindgren1-1/+1
The width needs to be configured in bytes with 1 meaning 8-bit access and 2 meaning 16-bit access. Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-05-15memory: atmel-ebi: mark PM ops as __maybe_unusedArnd Bergmann1-1/+1
We get a harmless warning without CONFIG_PM: drivers/memory/atmel-ebi.c:584:12: error: 'atmel_ebi_resume' defined but not used [-Werror=unused-function] Marking the function as __maybe_unused does the right thing here and drops it silently when unused. Fixes: a483fb10e5ea ("memory: atmel-ebi: Add PM ops") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-05-11Merge tag 'for-linus-20170510' of git://git.infradead.org/linux-mtdLinus Torvalds1-1/+1
Pull MTD updates from Brian Norris: "NAND, from Boris: - some minor fixes/improvements on existing drivers (fsmc, gpio, ifc, davinci, brcmnand, omap) - a huge cleanup/rework of the denali driver accompanied with core fixes/improvements to simplify the driver code - a complete rewrite of the atmel driver to support new DT bindings make future evolution easier - the addition of per-vendor detection/initialization steps to avoid extending the nand_ids table with more extended-id entries SPI NOR, from Cyrille: - fixes in the hisi, intel and Mediatek SPI controller drivers - fixes to some SPI flash memories not supporting the Chip Erase command. - add support to some new memory parts (Winbond, Macronix, Micron, ESMT). - add new driver for the STM32 QSPI controller And a few fixes for Gemini and Versatile platforms on physmap-of" * tag 'for-linus-20170510' of git://git.infradead.org/linux-mtd: (100 commits) MAINTAINERS: Update NAND subsystem git repositories mtd: nand: gpio: update binding mtd: nand: add ooblayout for old hamming layout mtd: oxnas_nand: Allocating more than necessary in probe() dt-bindings: mtd: Document the STM32 QSPI bindings mtd: mtk-nor: set controller's address width according to nor flash mtd: spi-nor: add driver for STM32 quad spi flash controller mtd: nand: brcmnand: Check flash #WP pin status before nand erase/program mtd: nand: davinci: add comment on NAND subpage write status on keystone mtd: nand: omap2: Fix partition creation via cmdline mtdparts mtd: nand: NULL terminate a of_device_id table mtd: nand: Fix a couple error codes mtd: nand: allow drivers to request minimum alignment for passed buffer mtd: nand: allocate aligned buffers if NAND_OWN_BUFFERS is unset mtd: nand: denali: allow to override revision number mtd: nand: denali_dt: use pdev instead of ofdev for platform_device mtd: nand: denali_dt: remove dma-mask DT property mtd: nand: denali: support 64bit capable DMA engine mtd: nand: denali_dt: enable HW_ECC_FIXUP for Altera SOCFPGA variant mtd: nand: denali: support HW_ECC_FIXUP capability ...
2017-05-03Merge tag 'mfd-next-4.12' of ↵Linus Torvalds2-384/+201
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Freescale MXS Low Resolution ADC - Freescale i.MX23/i.MX28 LRADC touchscreen - Motorola CPCAP Power Button - TI LMU (Lighting Management Unit) - Atmel SMC (Static Memory Controller) New Device Support: - Add support for X-Powers AXP803 to axp20x - Add support for Dialog Semi DA9061 to da9062-core - Add support for Intel Cougar Mountain to lpc_ich - Add support for Intel Gemini Lake to lpc_ich New Functionality: - Add Device Tree support; wm831x-*, axp20x, ti-lmu, da9062, sun4i-gpadc - Add IRQ sense support; motorola-cpcap - Add ACPI support; cros_ec - Add Reset support; altera-a10sr - Add ADC support; axp20x - Add AC Power support; axp20x - Add Runtime PM support; atmel-ebi, exynos-lpass - Add Battery Power Supply support; axp20x - Add Clock support; exynos-lpass, hi655x-pmic Fix-ups: - Implicitly specify required headers; motorola-cpcap, intel_soc_pmic_bxtwc - Add .remove() method; stm32-timers, exynos-lpass - Remove unused code; intel_soc_pmic_core, intel-lpss-acpi, ipaq-micro, atmel-smc, menelaus - Rename variables for clarity; axp20x - Convert pr_warning() to pr_warn(); db8500-prcmu, sta2x11-mfd, twl4030-power - Improve formatting; arizona-core, axp20x - Use raw_spinlock_*() variants; asic3, t7l66xb, tc6393xb - Simplify/refactor code; arizona-core, atmel-ebi - Improve error checking; intel_soc_pmic_core Bug Fixes: - Ensure OMAP3630/3730 boards can successfully reboot; twl4030-power - Correct max-register value; stm32-timers - Extend timeout to account for clock stretching; cros_ec_spi - Use correct IRQ trigger type; motorola-cpcap - Fix bad use of IRQ sense register; motorola-cpcap - Logic error "||" should be "&&"; mxs-lradc-ts" * tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (79 commits) input: touchscreen: mxs-lradc: || vs && typos dt-bindings: Add AXP803's regulator info mfd: axp20x: Support AXP803 variant dt-bindings: Add device tree binding for X-Powers AXP803 PMIC dt-bindings: Make AXP20X compatible strings one per line mfd: intel_soc_pmic_core: Fix unchecked return value mfd: menelaus: Remove obsolete local_irq_disable() and local_irq_enable() mfd: omap-usb-tll: Configure ULPIAUTOIDLE mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode mfd: palmas: Fixed spelling mistake in error message mfd: lpc_ich: Add support for Intel Gemini Lake SoC mfd: hi655x: Add the clock cell to provide WiFi and Bluetooth mfd: intel_soc_pmic: Fix a mess with compilation units mfd: exynos-lpass: Add runtime PM support mfd: exynos-lpass: Add missing remove() function mfd: exynos-lpass: Add support for clocks mfd: exynos-lpass: Remove pad retention control iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs mfd: cpcap: Fix bad use of IRQ sense register mfd: cpcap: Use ack_invert interrupts ...
2017-04-27memory: atmel-ebi: Add PM opsBoris Brezillon1-0/+20
Add a ->resume() hook to make sure the EBI dev configs are correctly restored when resuming the platform. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27memory: atmel-ebi: Add missing ->numcs assignmentBoris Brezillon1-0/+1
ebid->numcs is never assigned, set it to numcs after allocating the EBI dev object. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27memory: atmel-ebi: Change naming schemeBoris Brezillon1-60/+60
The EBI block is not only available on at91 SoCs, but also on avr32 ones. Change the structure and function prefixes from at91_ebi to atmel_ebi to match this fact and make the prefix and driver name consistent. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27memory: atmel-ebi: Stop using reg_field objects for simple thingsBoris Brezillon1-42/+13
Turn the ->ebi_csa reg field into a simple offset that can be used with with the matrix regmap. Using reg fields was overkill for this use case. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-04-27memory: atmel-ebi: Simplify SMC config codeBoris Brezillon2-303/+128
New helpers/macros have been to atmel-smc.h introduced to simplify SMC regs manipulation. Rework the code to use those helpers, and simplify the ->xlate_config(), ->get_config() and ->apply_config() implementations. SMC configs are now stored in a struct atmel_smc_cs_conf object that directly contains registers values, which should help implementing ->suspend()/->resume() hooks. We can also get rid of those regmap fields (and the associated ->init() hook) which are not longer needed thanks to the atmel_[h]smc_cs_conf_{apply,get}() helpers. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-03-16memory: ifc: Update dependency of IFC for LS1021AAlison Wang1-1/+1
As Freescale/NXP IFC controller is available on LS1021A, the dependency for LS1021A is added. LS1021A is an earlier product and is not compatible with later LayerScape architecture. So ARCH_LAYERSCAPE can't cover LS1021A. Signed-off-by: Alison Wang <alison.wang@nxp.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-03-06Merge tag 'v4.11-rc1' into omap-for-v4.11/fixesTony Lindgren3-52/+87
Linux 4.11-rc1
2017-02-28ARM: OMAP2+: gpmc-onenand: propagate error on initialization failureLadislav Michl1-3/+1
gpmc_probe_onenand_child returns success even on gpmc_onenand_init failure. Fix that. Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-02-24Merge tag 'armsoc-drivers' of ↵Linus Torvalds2-51/+80
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs. A handful of driver changes this time around. The larger changes are: - Reset drivers for hi3660 and zx2967 - AHCI driver for Davinci, acked by Tejun and brought in here due to platform dependencies - Cleanups of atmel-ebi (External Bus Interface) - Tweaks for Rockchip GRF (General Register File) usage (kitchensink misc register range on the SoCs) - PM domains changes for support of two new ZTE SoCs (zx296718 and zx2967)" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits) soc: samsung: pmu: Add register defines for pad retention control reset: make zx2967 explicitly non-modular reset: core: fix reset_control_put soc: samsung: pm_domains: Read domain name from the new label property soc: samsung: pm_domains: Remove message about failed memory allocation soc: samsung: pm_domains: Remove unused name field soc: samsung: pm_domains: Use full names in subdomains registration log sata: ahci-da850: un-hardcode the MPY bits sata: ahci-da850: add a workaround for controller instability sata: ahci: export ahci_do_hardreset() locally sata: ahci-da850: implement a workaround for the softreset quirk sata: ahci-da850: add device tree match table sata: ahci-da850: get the sata clock using a connection id soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register memory: atmel-ebi: Enable the SMC clock if specified soc: samsung: pmu: Remove unused and duplicated defines memory: atmel-ebi: Properly handle multiple reference to the same CS memory: atmel-ebi: Fix the test to enable generic SMC logic soc: samsung: pm_domains: Add new Exynos5433 compatible soc: samsung: pmu: Add dummy support for Exynos5433 SoC ...
2017-01-30Merge tag 'at91-ab-4.11-drivers2' of ↵Olof Johansson1-34/+65
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers Drivers for 4.11 #2: - more EBI fixes * tag 'at91-ab-4.11-drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: memory: atmel-ebi: Enable the SMC clock if specified memory: atmel-ebi: Properly handle multiple reference to the same CS memory: atmel-ebi: Fix the test to enable generic SMC logic Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-30Merge tag 'tegra-for-4.11-memory' of ↵Olof Johansson1-4/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers memory: tegra: Changes for v4.11-rc1 This contains a single commit that plugs a potential device node leak in error handling code. * tag 'tegra-for-4.11-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: memory: tegra: Add a missing 'of_node_put()' call Signed-off-by: Olof Johansson <olof@lixom.net>
2017-01-27memory: atmel-ebi: Enable the SMC clock if specifiedBoris Brezillon1-14/+37
Newer versions of the SMC block requires the SMC clock to be enabled before the SMC logic can be used. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-01-27memory: atmel-ebi: Properly handle multiple reference to the same CSBoris Brezillon1-19/+27
Some devices are defining several sub-ranges within the same CS iomem range. In this case, we should not duplicate the EBI device config. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-01-27memory: atmel-ebi: Fix the test to enable generic SMC logicBoris Brezillon1-1/+1
We should test the apply value and not the ret one here. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Fixes: 6a4ec4cd0888 ("memory: add Atmel EBI (External Bus Interface) driver") Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2017-01-25memory: tegra: Add a missing 'of_node_put()' callChristophe Jaillet1-4/+1
If 'of_find_device_by_node()' fails, an 'of_node_put()' call is missing in the error handling path. Fix it by reordering the code. While at it, remove some empty lines in a more or less similar construction a few lines below. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-01-19memory: aemif: allow passing device lookup table as platform dataBartosz Golaszewski1-1/+7
TI aemif driver creates its own subnodes of the device tree in order to guarantee that all child devices are probed after the AEMIF timing parameters are configured. Some devices (e.g. da850) use struct of_dev_auxdata for clock lookup but nodes created from within the aemif driver can't access the lookup table. Create a platform data structure that holds a pointer to of_dev_auxdata so that we can use it with of_platform_populate(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>