- 22 Jul, 2020 1 commit
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Marek Szyprowski authored
Add a simple custom voltage regulator coupler for Exynos5800 SoCs, which require coupling between "vdd_arm" and "vdd_int" regulators. This coupler ensures that the voltage values don't go below the bootloader-selected operation point during the boot process until the clients set their constraints. It is achieved by assuming minimal voltage value equal to the current value if no constraints are set. This also ensures proper voltage balancing if any of the client driver is missing. The balancing code comes from the regulator/core.c with the additional logic for handling regulators without client constraints applied added. Link: https://lore.kernel.org/r/20200721180900.13844-5-krzk@kernel.orgSigned-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by:
Dmitry Osipenko <digetx@gmail.com> Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
Arnd Bergmann <arnd@arndb.de>
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- 17 Jul, 2020 7 commits
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Arnd Bergmann authored
Merge tag 'tegra-for-5.9-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers soc/tegra: Changes for v5.9-rc1 This adds missing SoC IDs for Tegra186 and Tegra194 and fixes a typo in a warning message. * tag 'tegra-for-5.9-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: fuse: Fix typo in APB MISC warning soc/tegra: fuse: Add Tegra186 and Tegra194 SoC IDs Link: https://lore.kernel.org/r/20200717161300.1661002-4-thierry.reding@gmail.comSigned-off-by:
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Arnd Bergmann authored
Merge tag 'tegra-for-5.9-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers memory: tegra: Changes for v5.9-rc1 This contains the Tegra210 EMC frequency scaling support that didn't make it into v5.8. In addition there are a couple of cleanups and minor fixes. * tag 'tegra-for-5.9-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: memory: tegra: Add Tegra132 compatible string match memory: tegra: Fix KCONFIG variables for Tegra186 and Tegra194 memory: tegra: Delete some dead code memory: tegra: Avoid unused function warnings memory: tegra: Drop <linux/clk-provider.h> memory: tegra: Fix an error handling path in tegra186_emc_probe() memory: tegra30-emc: Poll EMC-CaR handshake instead of waiting for interrupt memory: tegra20-emc: Poll EMC-CaR handshake instead of waiting for interrupt memory: tegra: Support derated timings on Tegra210 memory: tegra: Add EMC scaling sequence code for Tegra210 memory: tegra: Add EMC scaling support code for Tegra210 memory: tegra: Make debugfs permissions human-readable Link: https://lore.kernel.org/r/20200717161300.1661002-3-thierry.reding@gmail.comSigned-off-by:
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Arnd Bergmann authored
Merge tag 'tegra-for-5.9-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers firmware: tegra: Changes for v5.9-rc1 This has a few cleanups and the addition of a new mechanism to query debug information from the BPMP. * tag 'tegra-for-5.9-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: firmware: tegra: Update BPMP ABI firmware: tegra: Add support for in-band debug firmware: tegra: Prepare for supporting in-band debugfs firmware: tegra: Use consistent return variable name firmware: tegra: Add return code checks and increase debugfs size Link: https://lore.kernel.org/r/20200717161300.1661002-2-thierry.reding@gmail.comSigned-off-by:
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Sudeep Holla authored
Kbuild test robot reports the following sparse warning: drivers/firmware/arm_scmi/clock.c:142:21: sparse: Using plain integer as NULL pointer Use NULL pointer instead of integer 0 for rate pointer and fix the warning. Link: https://lore.kernel.org/r/20200717140405.17905-1-sudeep.holla@arm.comReported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Sudeep Holla <sudeep.holla@arm.com> Signed-off-by:
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Arnd Bergmann authored
Merge tag 'renesas-drivers-for-v5.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers Renesas driver updates for v5.9 - Add core support for the new RZ/G2H (R8A774E1) SoC, including System Controller (SYSC) and Reset (RST) support. * tag 'renesas-drivers-for-v5.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel: soc: renesas: rcar-rst: Add support for RZ/G2H soc: renesas: Identify RZ/G2H soc: renesas: Add Renesas R8A774E1 config option soc: renesas: rcar-sysc: Add r8a774e1 support clk: renesas: Add r8a774e1 CPG Core Clock Definitions dt-bindings: power: Add r8a774e1 SYSC power domain definitions Link: https://lore.kernel.org/r/20200717112427.26032-3-geert+renesas@glider.beSigned-off-by:
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Thierry Reding authored
The hardware block is called APB MISC, not ABP MISC, so fix the warning to use the correct name. Signed-off-by:Thierry Reding <treding@nvidia.com>
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Sandipan Patra authored
SoC IDs for these generations had never been defined. Do so now. Signed-off-by:
Sandipan Patra <spatra@nvidia.com> Reviewed-by:
Jon Hunter <jonathanh@nvidia.com> Signed-off-by:
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- 16 Jul, 2020 1 commit
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Arnd Bergmann authored
Merge tag 'v5.8-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/drivers add new functions to cmdq helper functions - assign value to register - export finalize function and don't call explicitely from flush async - set specific event * tag 'v5.8-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux: soc: mediatek: cmdq: add set event function soc: mediatek: cmdq: export finalize function soc: mediatek: cmdq: add assign function Link: https://lore.kernel.org/r/01399fb4-b2d0-e41b-dfd9-f2deba0ef651@gmail.comSigned-off-by:
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- 15 Jul, 2020 1 commit
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Thierry Reding authored
Ensure that the driver will bind against the Tegra132 instantiation of the external memory controller. While the two are roughly the same from a capability perspective, they do require some incompatible changes to the programming sequences and therefore need separate compatible strings. Signed-off-by:
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- 14 Jul, 2020 7 commits
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Jon Hunter authored
Update the BPMP ABI to align with the the latest version. Signed-off-by:
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Jon Hunter authored
Add support for retrieving BPMP debug information via in-band messaging as opposed to using shared-memory which older BPMP firmware used. Note that it is possible to detect at runtime whether the BPMP firmware being used supports the in-band messaging for retrieving the debug informaation. Therefore, if the BPMP firmware supports the in-band messaging for debug use this and otherwise fall-back to using shared memory. Signed-off-by:
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Jon Hunter authored
Currently, BPMP debug information is accessible via the Linux debugfs file-system using a shared-memory scheme. More recent BPMP firmware now supports accessing the debug information by in-band messaging which does not require shared-memory. To prepare for adding in-band debugfs support for the BPMP, move the shared-memory specific initialisation from the tegra_bpmp_init_debugfs() into a sub-function. Signed-off-by:
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Jon Hunter authored
Most functions in the BPMP driver use 'err' as the return variable name but there are a few places that use 'ret'. Let's use 'err' to be consistent. Signed-off-by:
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Timo Alho authored
Add checking of the BPMP-FW return code values for MRQ_DEBUGFS calls. Also, development versions of the firmware may have debugfs with a directory structure larger than 256 KiB. Hence increase the size of the memory buffer to accommodate those firmware revisions. And finally, ensure that no access outside of allocated memory buffer happens in case BPMP-FW returns an invalid response size (nbytes) from mrq_debugfs_dumpdir() call. Signed-off-by:
Timo Alho <talho@nvidia.com> Signed-off-by:
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Jon Hunter authored
Commit a127e690 ("memory: tegra: Add support for the Tegra194 memory controller") and commit 4e04b886 ("memory: tegra: Only include support for enabled SoCs") incorrectly added the KCONFIG variables CONFIG_ARCH_TEGRA186_SOC and CONFIG_ARCH_TEGRA194_SOC to the Tegra EMC driver. These KCONFIG variables do not exist and prevent the EMC driver from being probed on Tegra186 and Tegra194. These KCONFIG variable names are simply missing one underscore and so fix this by adding the necessary underscore to the variable names. Signed-off-by:
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Arnd Bergmann authored
Merge tag 'scmi-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers ARM SCMI/SCPI updates for v5.9 The main addition for this time is the support for platform notifications. SCMI protocol specification allows the platform to signal events to the interested agents via notification messages. We are adding support for the dispatch and delivery of such notifications to the interested users inside the kernel. Other than that, there are minor changes like checking and using the fast_switch capability quering the firmware instead of doing it unconditionally(using polling mode transfer), cosmetic trace update, use of HAVE_ARM_SMCCC_DISCOVERY instead of ARM_PSCI_FW and a fix in scmi clock registration logic for all the clocks with discrete rates. * tag 'scmi-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: firmware: arm_scmi: Remove fixed size fields from reports/scmi_event_header firmware: arm_scmi: Remove unneeded __packed attribute firmware: arm_scmi: Remove zero-length array in SCMI notifications firmware: arm_scmi: Provide a missing function param description clk: scmi: Fix min and max rate when registering clocks with discrete rates firmware: arm_scmi: Keep the discrete clock rates sorted firmware: arm_scmi: Add base notifications support firmware: arm_scmi: Add reset notifications support firmware: arm_scmi: Add sensor notifications support firmware: arm_scmi: Add perf notifications support firmware: arm_scmi: Add power notifications support firmware: arm_scmi: Enable notification core firmware: arm_scmi: Add notification dispatch and delivery firmware: arm_scmi: Add notification callbacks-registration firmware: arm_scmi: Add notification protocol-registration firmware: arm_scmi: Fix SCMI genpd domain probing firmware: arm_scmi: Use HAVE_ARM_SMCCC_DISCOVERY instead of ARM_PSCI_FW cpufreq: arm_scmi: Set fast_switch_possible conditionally firmware: arm_scmi: Add fast_switch_possible() interface firmware: arm_scmi: Use signed integer to report transfer status Link: https://lore.kernel.org/r/20200713161410.12324-1-sudeep.holla@arm.comSigned-off-by:
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- 13 Jul, 2020 13 commits
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Arnd Bergmann authored
Merge tag 'optee-bus-for-v5.9' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers Enable multi-stage OP-TEE bus enumeration Probes drivers on the OP-TEE bus in two steps. First for drivers which do not depend on tee-supplicant. After tee-supplicant has been started probe the devices which do depend on tee-supplicant. Also introduces driver which uses an OP-TEE based fTPM Trusted Application depends on tee-supplicant NV RAM implementation based on RPMB secure storage. * tag 'optee-bus-for-v5.9' of git://git.linaro.org/people/jens.wiklander/linux-tee: tpm_ftpm_tee: register driver on TEE bus optee: enable support for multi-stage bus enumeration optee: use uuid for sysfs driver entry Link: https://lore.kernel.org/r/20200710085230.GA1312913@jadeSigned-off-by:
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Cristian Marussi authored
Event reports are used to convey information describing events to the registered user-callbacks: they are necessarily derived from the underlying raw SCMI events' messages but they are not meant to expose or directly mirror any of those messages data layout, which belong to the protocol layer. Using fixed size types for report fields, mirroring messages structure, is at odd with this: get rid of them using more generic, equivalent, typing. Substitute scmi_event_header fixed size fields with generic types too and shuffle around fields definitions to minimize implicit padding while adapting involved functions. Link: https://lore.kernel.org/r/20200710133919.39792-3-cristian.marussi@arm.comSigned-off-by:
Cristian Marussi <cristian.marussi@arm.com> Signed-off-by:
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Cristian Marussi authored
Remove __packed attribute from struct scmi_event_header. Link: https://lore.kernel.org/r/20200710133919.39792-2-cristian.marussi@arm.comSigned-off-by:
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Cristian Marussi authored
Substitute zero-length array defined in scmi_base_error_report with a flexible length array definition. Link: https://lore.kernel.org/r/20200710133919.39792-1-cristian.marussi@arm.comSigned-off-by:
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Sudeep Holla authored
gcc as well as clang now produce warnings for missing kerneldoc function parameter. Fix the following W=1 kernel build warning: drivers/firmware/arm_scmi/smc.c:32: warning: Function parameter or member 'shmem_lock' not described in 'scmi_smc' Link: https://lore.kernel.org/r/20200709153155.22573-1-sudeep.holla@arm.comReported-by:
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Sudeep Holla authored
Currently we are not initializing the scmi clock with discrete rates correctly. We fetch the min_rate and max_rate value only for clocks with ranges and ignore the ones with discrete rates. This will lead to wrong initialization of rate range when clock supports discrete rate. Fix this by using the first and the last rate in the sorted list of the discrete clock rates while registering the clock. Link: https://lore.kernel.org/r/20200709081705.46084-2-sudeep.holla@arm.com Fixes: 6d6a1d82 ("clk: add support for clocks provided by SCMI") Reviewed-by:
Stephen Boyd <sboyd@kernel.org> Reported-and-tested-by:
Dien Pham <dien.pham.ry@renesas.com> Signed-off-by:
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Marian-Cristian Rotariu authored
Add support for RZ/G2H (R8A774E1) to the R-Car RST driver. Signed-off-by:
Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com> Signed-off-by:
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/1594138692-16816-8-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by:
Geert Uytterhoeven <geert+renesas@glider.be>
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Marian-Cristian Rotariu authored
This patch adds support for identifying the RZ/G2H (r8a774e1) SoC. Signed-off-by:
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Marian-Cristian Rotariu authored
Add configuration option for the RZ/G2H (R8A774E1) SoC. Signed-off-by:
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Marian-Cristian Rotariu authored
Add support for RZ/G2H (R8A774E1) SoC power areas to the R-Car SYSC driver. Signed-off-by:
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Geert Uytterhoeven authored
Renesas RZ/G2H DT Binding Definitions Clock and Power Domain definitions for the Renesas RZ/G2H (R8A774E1) SoC, shared by driver and DT source files.
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Marian-Cristian Rotariu authored
Add all RZ/G2H Clock Pulse Generator Core Clock Outputs, as listed in Table 11.2 ("List of Clocks [RZ/G2H]") of the RZ/G2H Hardware User's Manual. Signed-off-by: -
Marian-Cristian Rotariu authored
This patch adds power domain indices for the RZ/G2H (r8a774e1) SoC. Signed-off-by:
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- 10 Jul, 2020 4 commits
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Sudeep Holla authored
Instead of relying on the firmware to keep the clock rates sorted, let us sort the list. This is not essential for clock layer but it helps to find the min and max rates easily from the list. Link: https://lore.kernel.org/r/20200709081705.46084-1-sudeep.holla@arm.com Fixes: 5f6c6430 ("firmware: arm_scmi: add initial support for clock protocol") Reported-and-tested-by:
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Maxim Uvarov authored
OP-TEE based fTPM Trusted Application depends on tee-supplicant to provide NV RAM implementation based on RPMB secure storage. So this dependency can be resolved via TEE bus where we only invoke fTPM driver probe once fTPM device is registered on the bus which is only true after the tee-supplicant is up and running. Additionally, TEE bus provides auto device enumeration. Signed-off-by:
Maxim Uvarov <maxim.uvarov@linaro.org> Suggested-by:
Sumit Garg <sumit.garg@linaro.org> Suggested-by:
Arnd Bergmann <arnd@linaro.org> Reviewed-by:
Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by:
Jens Wiklander <jens.wiklander@linaro.org>
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Maxim Uvarov authored
Some drivers (like ftpm) can operate only after tee-supplicant runs because of tee-supplicant provides things like storage services (rpmb, shm). This patch splits probe of non tee-supplicant dependable drivers to the early stage, and after tee-supplicant run probe other drivers. Signed-off-by:
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Maxim Uvarov authored
With the evolving use-cases for TEE bus, now it's required to support multi-stage enumeration process. But using a simple index doesn't suffice this requirement and instead leads to duplicate sysfs entries. So instead switch to use more informative device UUID for sysfs entry like: /sys/bus/tee/devices/optee-ta-<uuid> Signed-off-by:
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- 06 Jul, 2020 6 commits
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Arnd Bergmann authored
Merge tag 'soc-attr-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers SoC attributes update for v5.9 1. Addition of ARM SMCCC ARCH_SOC_ID support 2. Usage of the custom soc attribute groups already supported in the infrastucture instead of device_create_file which eliminates the need for any cleanup when soc is unregistered 3. Minor clean up switching to use standard DEVICE_ATTR_RO() instead of direct __ATTR * tag 'soc-attr-updates-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: firmware: smccc: Add ARCH_SOC_ID support ARM: OMAP2: Use custom soc attribute group instead of device_create_file ARM: OMAP2: Switch to use DEVICE_ATTR_RO() soc: ux500: Use custom soc attribute group instead of device_create_file soc: ux500: Switch to use DEVICE_ATTR_RO() soc: integrator: Use custom soc attribute group instead of device_create_file soc: integrator: Switch to use DEVICE_ATTR_RO() soc: realview: Use custom soc attribute group instead of device_create_file soc: realview: Switch to use DEVICE_ATTR_RO() Link: https://lore.kernel.org/r/20200706165312.40697-1-sudeep.holla@arm.comSigned-off-by:
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Sudeep Holla authored
SMCCC v1.2 adds a new optional function SMCCC_ARCH_SOC_ID to obtain a SiP defined SoC identification value. Add support for the same. Also using the SoC bus infrastructure, let us expose the platform specific SoC atrributes under sysfs. There are various ways in which it can be represented in shortened form for efficiency and ease of parsing for userspace. The chosen form is described in the ABI document. Link: https://lore.kernel.org/r/20200625095939.50861-1-sudeep.holla@arm.com Cc: Etienne Carriere <etienne.carriere@st.com> Reviewed-by:
Steven Price <steven.price@arm.com> Signed-off-by:
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Sudeep Holla authored
Commit c31e7312 ("base: soc: Handle custom soc information sysfs entries") introduced custom soc attribute group in soc_device_attribute structure but there are no users treewide. While trying to understand the motivation and tried to use it, it was found lot of existing custom attributes can moved to use it instead of device_create_file. Though most of these never remove/cleanup the custom attribute as they never call soc_device_unregister, using these custom attribute group eliminate the need for any cleanup as the driver infrastructure will take care of that. Let us remove device_create_file and start using the custom attribute group in soc_device_attribute. Link: https://lore.kernel.org/r/20200523170859.50003-9-sudeep.holla@arm.com Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Reviewed-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Sudeep Holla authored
Move device attributes to DEVICE_ATTR_RO() as that would make things a lot more "obvious" what is happening over the existing __ATTR usage. Link: https://lore.kernel.org/r/20200523170859.50003-8-sudeep.holla@arm.com Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Reviewed-by:
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Sudeep Holla authored
Commit c31e7312 ("base: soc: Handle custom soc information sysfs entries") introduced custom soc attribute group in soc_device_attribute structure but there are no users treewide. While trying to understand the motivation and tried to use it, it was found lot of existing custom attributes can moved to use it instead of device_create_file. Though most of these never remove/cleanup the custom attribute as they never call soc_device_unregister, using these custom attribute group eliminate the need for any cleanup as the driver infrastructure will take care of that. Let us remove device_create_file and start using the custom attribute group in soc_device_attribute. Link: https://lore.kernel.org/r/20200523170859.50003-7-sudeep.holla@arm.com Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Sudeep Holla authored
Move device attributes to DEVICE_ATTR_RO() as that would make things a lot more "obvious" what is happening over the existing __ATTR usage. Link: https://lore.kernel.org/r/20200523170859.50003-6-sudeep.holla@arm.com Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
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