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2024-08-29soc/tegra: pmc: Simplify with scoped for each OF child loopJinjie Ruan1-8/+4
Use scoped for_each_child_of_node_scoped() when iterating over device nodes to make code a bit simpler. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-07-08Merge tag 'tegra-for-6.11-soc' of ↵Arnd Bergmann1-6/+2
https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers soc/tegra: Changes for v6.11-rc1 This is a simple change that condenses two function calls into one in two places to save some boilerplate. * tag 'tegra-for-6.11-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: pmc: Simplify resource lookup Link: https://lore.kernel.org/r/20240628210818.3627404-1-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-06-27soc/tegra: pmc: Simplify resource lookupJon Hunter1-6/+2
Commit 6f4429e21a7f ("soc/tegra: pmc: Update address mapping sequence for PMC apertures") updated the resource lookup code in the PMC driver. Instead of calling platform_get_resource_byname() and devm_ioremap_resource() simplify the code by simply calling devm_platform_ioremap_resource_byname(). Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-06-06mm/util: Swap kmemdup_array() argumentsJean-Philippe Brucker1-2/+2
GCC 14.1 complains about the argument usage of kmemdup_array(): drivers/soc/tegra/fuse/fuse-tegra.c:130:65: error: 'kmemdup_array' sizes specified with 'sizeof' in the earlier argument and not in the later argument [-Werror=calloc-transposed-args] 130 | fuse->lookups = kmemdup_array(fuse->soc->lookups, sizeof(*fuse->lookups), | ^ drivers/soc/tegra/fuse/fuse-tegra.c:130:65: note: earlier argument should specify number of elements, later size of each element The annotation introduced by commit 7d78a7773355 ("string: Add additional __realloc_size() annotations for "dup" helpers") lets the compiler think that kmemdup_array() follows the same format as calloc(), with the number of elements preceding the size of one element. So we could simply swap the arguments to __realloc_size() to get rid of that warning, but it seems cleaner to instead have kmemdup_array() follow the same format as krealloc_array(), memdup_array_user(), calloc() etc. Fixes: 7d78a7773355 ("string: Add additional __realloc_size() annotations for "dup" helpers") Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240606144608.97817-2-jean-philippe@linaro.org Signed-off-by: Kees Cook <kees@kernel.org>
2024-04-26soc/tegra: pmc: Add EQOS wake event for Tegra194 and Tegra234Jon Hunter1-0/+2
Add the wake event for the EQOS ethernet controller on Tegra194 and Tegra234 devices, so that system can be woken up by an event from this ethernet controller. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-16soc/tegra: pmc: Add SD wake event for Tegra234Prathamesh Shete1-1/+2
Add SD wake event for Tegra234 so that system can be woken up from suspend when SD card hot-plug/unplug event is detected. Signed-off-by: Prathamesh Shete <pshete@nvidia.com> Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-16soc/tegra: pmc: Update scratch as an optional aperturePetlozu Pravareshwar1-9/+17
Scratch address space register is used to store reboot reason. For some Tegra234 systems, the scratch space is not available to store the reboot reason. This is because scratch region on these systems is not accessible by the kernel as restricted by the Hypervisor. Such systems would delist scratch aperture from PMC DT node. Hence this change makes scratch as optional aperture and also avoids registering reboot notifier if scratch address space isn't mapped. Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-16soc/tegra: pmc: Update address mapping sequence for PMC aperturesPetlozu Pravareshwar1-14/+20
On Tegra SoCs prior to Tegra186, PMC has single address range only. Starting from and after Tegra186, PMC has additional address ranges apart from base address range. Currently in PMC driver, we try to map these additional address ranges on all SoCs and if we fail then we assume that the range is not valid for an SoC. This change makes it more explicit on which address ranges are expected to be present on which SoCs and maps the additional address ranges only on SoCs from and after Tegra186. Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: Fix build failure on Tegra241Arnd Bergmann1-1/+2
If all the other SoCs are disabled, the driver fails to build: drivers/soc/tegra/fuse/fuse-tegra30.c:684:17: error: 'tegra30_fuse_read' undeclared here (not in a function); did you mean 'tegra_fuse_readl'? 684 | .read = tegra30_fuse_read, | ^~~~~~~~~~~~~~~~~ | tegra_fuse_readl drivers/soc/tegra/fuse/fuse-tegra30.c:694:17: error: 'tegra30_fuse_init' undeclared here (not in a function); did you mean 'tegra_fuse_info'? 694 | .init = tegra30_fuse_init, | ^~~~~~~~~~~~~~~~~ Fix the list of SoCs using this function to include the newly added one. Fixes: dee509eb9cd5 ("soc/tegra: fuse: Add support for Tegra241") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Fix crash in tegra_fuse_readl()Jon Hunter1-0/+3
Commit c5b2d43e67bb ("soc/tegra: fuse: Add ACPI support for Tegra194 and Tegra234") updated the Tegra fuse driver to add ACPI support and added a test to the tegra_fuse_readl() function to check if the device is booting with device-tree. This test passes 'fuse->dev' variable to dev_fwnode() but does not check first is 'fuse->dev' is valid. This is causing a crash to occur in Tegra XUSB PHY driver that calls the tegra_fuse_readl() function before 'fuse->dev' variable has been initialised ... Unable to handle kernel NULL pointer dereference at virtual address 0000000000000290 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [0000000000000290] user address but active_mm is swapper Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 7 PID: 70 Comm: kworker/u16:4 Not tainted 6.8.0-rc1-next-20240129-02825-g596764183be8 #1 Hardware name: NVIDIA Jetson AGX Xavier Developer Kit (DT) Workqueue: events_unbound deferred_probe_work_func pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __dev_fwnode+0x0/0x18 lr : tegra_fuse_readl+0x24/0x98 sp : ffff80008393ba10 x29: ffff80008393ba10 x28: 0000000000000000 x27: ffff800081233c10 x26: 00000000000001c8 x25: ffff000080b7bc10 x24: ffff000082df3b00 x23: fffffffffffffff4 x22: 0000000000000004 x21: ffff80008393ba84 x20: 00000000000000f0 x19: ffff800082f1e000 x18: ffff800081d72000 x17: 0000000000000001 x16: 0000000000000001 x15: ffff800082fcdfff x14: 0000000000000000 x13: 0000000003541000 x12: 0000000000000020 x11: 0140000000000000 x10: ffff800080000000 x9 : 0000000000000000 x8 : ffff000082df3b40 x7 : 0000000000000000 x6 : 000000000000003f x5 : 00000000ffffffff x4 : 0000000000000dc0 x3 : 00000000000000c0 x2 : 0000000000000001 x1 : ffff80008393ba84 x0 : 0000000000000000 Call trace: __dev_fwnode+0x0/0x18 tegra186_xusb_padctl_probe+0xb0/0x1a8 tegra_xusb_padctl_probe+0x7c/0xebc platform_probe+0x90/0xd8 really_probe+0x13c/0x29c __driver_probe_device+0x7c/0x124 driver_probe_device+0x38/0x11c __device_attach_driver+0x90/0xdc bus_for_each_drv+0x78/0xdc __device_attach+0xfc/0x188 device_initial_probe+0x10/0x18 bus_probe_device+0xa4/0xa8 deferred_probe_work_func+0x80/0xb4 process_scheduled_works+0x178/0x3e0 worker_thread+0x164/0x2e8 kthread+0xfc/0x11c ret_from_fork+0x10/0x20 Code: a8c27bfd d65f03c0 128002a0 d65f03c0 (f9414801) ---[ end trace 0000000000000000 ]--- Fix this by verifying that 'fuse->dev' is valid before passing to dev_fwnode(). Fixes: c5b2d43e67bb ("soc/tegra: fuse: Add ACPI support for Tegra194 and Tegra234") Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Define tegra194_soc_attr_group for Tegra241Kartik2-2/+4
Tegra241 SoC data uses tegra194_soc_attr_group, which is only defined if config CONFIG_ARCH_TEGRA_194_SOC or CONFIG_ARCH_TEGRA_234_SOC or both are enabled. This causes a build failure if both of these configs are disabled and CONFIG_ARCH_TEGRA_241_SOC is enabled. Define tegra194_soc_attr_group if CONFIG_ARCH_TEGRA_241_SOC is enabled. Signed-off-by: Kartik <kkartik@nvidia.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Add support for Tegra241Kartik5-0/+35
Add support for Tegra241 which use ACPI boot. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Add ACPI support for Tegra194 and Tegra234Kartik1-3/+49
Add ACPI support for Tegra194 & Tegra243 SoC's. This requires following modifications to the probe when ACPI boot is used: - Initialize soc data. - Add nvmem lookups. - Register soc device. - use devm_clk_get_optional() instead of devm_clk_get() to get fuse->clk, as fuse clocks are not required when using ACPI boot. Also, drop '__init' keyword for tegra_soc_device_register() as this is also used by tegra_fuse_probe() and use dev_err_probe() wherever applicable. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Add function to print SKU infoKartik1-6/+11
Add helper function tegra_fuse_print_sku_info() to print Tegra SKU information. So, it can be shared between tegra_fuse_init() and ACPI probe which is to be introduced later. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Add function to add lookupsKartik1-8/+17
Add helper function tegra_fuse_add_lookups() to register Tegra fuse nvmem lookups. So, this can be shared between tegra_fuse_init() and ACPI probe, which is to be introduced later. Use kmemdup_array to duplicate fuse->soc->lookups. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Add tegra_acpi_init_apbmisc()Kartik2-0/+73
In preparation to ACPI support in Tegra fuse driver add function tegra_acpi_init_apbmisc() to initialize tegra-apbmisc driver. Also, document the reason of calling tegra_init_apbmisc() at early init. Note that function tegra_acpi_init_apbmisc() is not placed in the __init section, because it will be called during probe. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Refactor resource mappingKartik1-16/+21
To prepare for adding ACPI support to the tegra-apbmisc driver, relocate the code responsible for mapping memory resources from the function ‘tegra_init_apbmisc’ to the function ‘tegra_init_apbmisc_resources.’ This adjustment will allow the code to be shared between ‘tegra_init_apbmisc’ and the upcoming ‘tegra_acpi_init_apbmisc’ function. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: fuse: Use dev_err_probe for probe failuresKartik1-13/+4
Currently, in tegra_fuse_probe() if clock/reset get fails, then the driver prints an error if the error is not caused by -EPROBE_DEFER. This can be improved by using dev_err_probe() instead. So, return dev_err_probe() if clock/reset get fails. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2024-02-01soc/tegra: pmc: Remove some old and deprecated functions and constantsChristophe JAILLET1-24/+0
These TEGRA_IO_RAIL_... functions and constants have been deprecated in commit 21b499105178 ("soc/tegra: pmc: Add I/O pad voltage support") in 2016-11. There seems to be no users since kernel 4.16. Remove them now. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-11-01Merge tag 'soc-drivers-6.7' of ↵Linus Torvalds2-12/+2
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull SoC driver updates from Arnd Bergmann: "The highlights for the driver support this time are - Qualcomm platforms gain support for the Qualcomm Secure Execution Environment firmware interface to access EFI variables on certain devices, and new features for multiple platform and firmware drivers. - Arm FF-A firmware support gains support for v1.1 specification features, in particular notification and memory transaction descriptor changes. - SCMI firmware support now support v3.2 features for clock and DVFS configuration and a new transport for Qualcomm platforms. - Minor cleanups and bugfixes are added to pretty much all the active platforms: qualcomm, broadcom, dove, ti-k3, rockchip, sifive, amlogic, atmel, tegra, aspeed, vexpress, mediatek, samsung and more. In particular, this contains portions of the treewide conversion to use __counted_by annotations and the device_get_match_data helper" * tag 'soc-drivers-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (156 commits) soc: qcom: pmic_glink_altmode: Print return value on error firmware: qcom: scm: remove unneeded 'extern' specifiers firmware: qcom: scm: add a missing forward declaration for struct device firmware: qcom: move Qualcomm code into its own directory soc: samsung: exynos-chipid: Convert to platform remove callback returning void soc: qcom: apr: Add __counted_by for struct apr_rx_buf and use struct_size() soc: qcom: pmic_glink: fix connector type to be DisplayPort soc: ti: k3-socinfo: Avoid overriding return value soc: ti: k3-socinfo: Fix typo in bitfield documentation soc: ti: knav_qmss_queue: Use device_get_match_data() firmware: ti_sci: Use device_get_match_data() firmware: qcom: qseecom: add missing include guards soc/pxa: ssp: Convert to platform remove callback returning void soc/mediatek: mtk-mmsys: Convert to platform remove callback returning void soc/mediatek: mtk-devapc: Convert to platform remove callback returning void soc/loongson: loongson2_guts: Convert to platform remove callback returning void soc/litex: litex_soc_ctrl: Convert to platform remove callback returning void soc/ixp4xx: ixp4xx-qmgr: Convert to platform remove callback returning void soc/ixp4xx: ixp4xx-npe: Convert to platform remove callback returning void soc/hisilicon: kunpeng_hccs: Convert to platform remove callback returning void ...
2023-10-13soc/tegra: pmc: Drop the ->opp_to_performance_state() callbackUlf Hansson1-8/+0
Since commit 7c41cdcd3bbe ("OPP: Simplify the over-designed pstate <-> level dance"), there is no longer any need for genpd providers to assign the ->opp_to_performance_state(), hence let's drop it. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: linux-tegra@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-10-11soc/tegra: cbb: tegra194-cbb: Convert to platform remove callback returning voidUwe Kleine-König1-4/+2
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-10-04pmdomain: tegra: Move Kconfig option to the pmdomain subsystemUlf Hansson1-5/+0
The Kconfig option belongs closer to the corresponding implementation, hence let's move it from the soc subsystem to the pmdomain subsystem. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Mikko Perttunen <mperttunen@nvidia.com> Cc: <linux-tegra@vger.kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2023-08-12Merge tag 'tegra-for-6.6-soc' of ↵Arnd Bergmann7-27/+9
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers soc/tegra: Changes for v6.6-rc1 This contains a selection of minor cleanups. * tag 'tegra-for-6.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: cbb: Remove unnecessary print function dev_err() soc/tegra: fuse: Sort includes alphabetically bus: tegra-gmi: Convert to devm_platform_ioremap_resource() soc/tegra: fuse: Use devm_platform_get_and_ioremap_resource() soc/tegra: Explicitly include correct DT includes Link: https://lore.kernel.org/r/20230728094129.3587109-1-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-07-27soc/tegra: cbb: Remove unnecessary print function dev_err()Jiapeng Chong1-6/+2
The print function dev_err() is redundant because platform_get_irq() already prints an error. ./drivers/soc/tegra/cbb/tegra-cbb.c:130:3-10: line 130 is redundant because platform_get_irq() already prints an error. ./drivers/soc/tegra/cbb/tegra-cbb.c:140:2-9: line 140 is redundant because platform_get_irq() already prints an error. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4879 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-07-27soc/tegra: fuse: Sort includes alphabeticallyThierry Reding1-2/+2
The includes were slightly out of order, so sort them correctly. Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-07-21soc/tegra: fuse: Use devm_platform_get_and_ioremap_resource()Yangtao Li1-6/+3
Convert platform_get_resource(), devm_ioremap_resource() to a single call to devm_platform_get_and_ioremap_resource(), as this is exactly what this function does. Signed-off-by: Yangtao Li <frank.li@vivo.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-07-21soc/tegra: Explicitly include correct DT includesRob Herring5-13/+2
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-07-14soc: tegra: Move powergate-bpmp driver to the genpd dirUlf Hansson2-362/+0
To simplify with maintenance let's move the powergate-bpmp driver to the new genpd directory. Going forward, patches are intended to be managed through a separate git tree, according to MAINTAINERS. Note that, we leave the pmc driver in the soc directory for now, as it looks like it may need some re-structuring before it's ready to be moved. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Mikko Perttunen <mperttunen@nvidia.com> Cc: <linux-tegra@vger.kernel.org> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2023-06-30Merge tag 'pinctrl-v6.5-1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "No core changes this time New drivers: - Tegra234 support - Qualcomm IPQ5018 support - Intel Meteor Lake-S support - Qualcomm SDX75 subdriver - Qualcomm SPMI-based PM8953 support Improvements: - Fix up support for GPIO3 on the AXP209 - Push-pull drive configuration support for the AT91 PIO4 - Fix misc non-urgent bugs in the AMD driver - Misc non-urgent improved error handling - Misc janitorial and minor improvements" * tag 'pinctrl-v6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (75 commits) pinctrl: cherryview: Drop goto label pinctrl: baytrail: invert if condition pinctrl: baytrail: add warning for BYT_VAL_REG retrieval failure pinctrl: baytrail: reduce scope of spinlock in ->dbg_show() hook pinctrl: tegra: avoid duplicate field initializers dt-bindings: pinctrl: qcom,sdx65-tlmm: add pcie_clkreq function pinctrl: mlxbf3: remove broken Kconfig 'select' pinctrl: spear: Remove unused of_gpio.h inclusion pinctrl: lantiq: Remove unused of_gpio.h inclusion pinctrl: at91-pio4: check return value of devm_kasprintf() pinctrl: microchip-sgpio: check return value of devm_kasprintf() pinctrl: freescale: Fix a memory out of bounds when num_configs is 1 pinctrl: intel: refine ->irq_set_type() hook pinctrl: intel: refine ->set_mux() hook pinctrl: baytrail: Use str_hi_lo() helper lib/string_choices: Add str_high_low() helper lib/string_helpers: Split out string_choices.h lib/string_helpers: Add missing header files to MAINTAINERS database pinctrl: npcm7xx: Add missing check for ioremap pinctrl:sunplus: Add check for kmalloc ...
2023-06-09soc/tegra: pmc: Use devm_clk_notifier_register()Thierry Reding1-2/+2
Move to the device-managed version of clk_notifier_register() to remove the need for manual cleanup. This fixes a potential issue where the clock notifier would stick around after the driver fails to probe at a later point. Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-06-09soc/tegra: pmc: Simplify debugfs initializationThierry Reding1-22/+4
debugfs calls should generally not be error-checked to simplify the case where debugfs is disabled. Since this driver is built-in and has the sysfs bind/unbind attributes disabled, it cannot be unloaded, so there is no need to hold onto a reference to the debugfs files that are created. We can further simplify this by moving the debugfs file creation to a later stage to avoid any cleanup we might have to do during error unwind operations. This is also a little cleaner because the debugfs file relies on data structures that are created at a later point than when the file was previously created. Suggested-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-06-09pinctrl: tegra: Add Tegra234 pinmux driverPrathamesh Shete1-0/+1
This change adds support for the two pin controllers found on Tegra234. Signed-off-by: Prathamesh Shete <pshete@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230605154230.2910847-3-thierry.reding@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2023-06-08soc/tegra: fuse: Fix Tegra234 fuse sizeKartik1-1/+1
The Tegra234 fuse size is incorrectly defined as 0x98c. The actual size of the Tegra234 fuses is 0xf8c and so update the size of the Tegra234 fuses to fix this. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-06-08soc/tegra: pmc: Add AON SW Wake support for Tegra234Viswanath L1-0/+1
Wake-up signal 83 on Tegra234 is triggered by software writing to WAKE_AOWAKE_SW_WAKE_TIER0_TRIGGER_0 register. This wake-up is mapped to CPU interrupt 179 and is used by the Sensor Processing Engine (SPE) in the Always-on (AON) power domain for waking up the system. Signed-off-by: Viswanath L <viswanathl@nvidia.com> Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-05-16soc/tegra: fuse: Add support for Tegra264Stefan Kristiansson1-1/+2
Add support for Tegra264 to the fuse handling code. Signed-off-by: Stefan Kristiansson <stefank@nvidia.com> Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-05soc/tegra: fuse: Remove nvmem root only accessKartik1-2/+2
To read fuse values, various "non-root" userspace applications require access to nvmem binary interface. Remove root only access for nvmem userspace binary interface. Signed-off-by: Kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-05soc/tegra: cbb: tegra194: Use of_address_count() helperYang Yingliang1-3/+1
After commit 16988c742968 ("of/address: introduce of_address_count() helper"), We can use of_address_count() to instead of open-coding it. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-05soc/tegra: cbb: Remove MODULE_LICENSE in non-modulesNick Alcock2-2/+0
Since commit 8b41fc4454e ("kbuild: create modules.builtin without Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations are used to identify modules. As a consequence, uses of the macro in non-modules will cause modprobe to misidentify their containing object file as a module when it is not (false positives), and modprobe might succeed rather than failing with a suitable error message. So remove it in the files in this commit, none of which can be built as modules. Signed-off-by: Nick Alcock <nick.alcock@oracle.com> Suggested-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: linux-modules@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: linux-tegra@vger.kernel.org Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-05soc/tegra: flowctrl: Use devm_platform_get_and_ioremap_resource()Ye Xingchen1-3/+1
Convert platform_get_resource(), devm_ioremap_resource() to a single call to devm_platform_get_and_ioremap_resource(), as this is exactly what this function does. Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-05soc: tegra: cbb: Drop empty platform remove functionUwe Kleine-König1-6/+0
A remove callback just returning 0 is equivalent to no remove callback at all. So drop the useless function. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Sumit Gupta <sumitg@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-03soc/tegra: pmc: Support software wake-up for SPEPetlozu Pravareshwar1-0/+22
The Sensor Processing Engine(SPE) can trigger a software wake-up of the device. To support this wake-up for the SPE, set SR_CAPTURE_EN bit in WAKE_AOWAKE_CNTRL register associated with the wake-up for the SPE. This SR capturing logic is expected to be enabled for wakes with short pulse signalling requirements. Signed-off-by: Viswanath L <viswanathl@nvidia.com> Signed-off-by: Petlozu Pravareshwar <petlozup@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-03soc/tegra: pmc: Add wake source interrupt for MGBESushil Singh1-1/+2
Add the GPIO wake interrupt for MGBE ethernet controller on Tegra234 SoC. Signed-off-by: Sushil Singh <sushilkumars@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-03soc/tegra: pmc: Add the PMIC wake event for Tegra234Jon Hunter1-0/+1
Add the PMIC wake event for Tegra234 that is used to bring the device out of system suspend for events such as an RTC alarm. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-04-03soc/tegra: bpmp: Actually free memory on error pathMikko Perttunen1-1/+1
Within the error path, genpd->domains has not been set, so we need to pass the domains variable to kfree instead. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2023-03-23soc/tegra: cbb: remove linux/version.hMuhammad Usama Anjum3-3/+0
make versioncheck reports the following: ./drivers/soc/tegra/cbb/tegra-cbb.c: 19 linux/version.h not needed. ./drivers/soc/tegra/cbb/tegra194-cbb.c: 26 linux/version.h not needed. ./drivers/soc/tegra/cbb/tegra234-cbb.c: 27 linux/version.h not needed. So remove linux/version.h from these files. Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-12-19Merge tag 'soc-fixes-6.2-1' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "These are a couple of build fixes from randconfig testing, plus a set of Mediatek SoC specific fixes, all trivial" * tag 'soc-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: soc: tegra: fix CPU_BIG_ENDIAN dependencies ARM: disallow pre-ARMv5 builds with ld.lld ARM: pxa: fix building with clang MAINTAINERS: add related dts to IXP4xx ARM: dts: spear: drop 0x from unit address arm64: dts: mt8183: Fix Mali GPU clock arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon soc: mediatek: pm-domains: Fix the power glitch issue
2022-12-19soc: tegra: fix CPU_BIG_ENDIAN dependenciesArnd Bergmann1-0/+3
My previous patch to prevent BPMP from being enabled on big endian kernels caused a build regression: WARNING: unmet direct dependencies detected for TEGRA_BPMP Depends on [n]: ARCH_TEGRA [=y] && TEGRA_HSP_MBOX [=y] && TEGRA_IVC [=y] && !CPU_BIG_ENDIAN [=y] Selected by [y]: - ARCH_TEGRA_186_SOC [=y] && ARCH_TEGRA [=y] && ARM64 [=y] - ARCH_TEGRA_194_SOC [=y] && ARCH_TEGRA [=y] && ARM64 [=y] - ARCH_TEGRA_234_SOC [=y] && ARCH_TEGRA [=y] && ARM64 [=y] Add even more such dependencies for the SoC types that use the BPMP driver. Fixes: 4ddb1bf1a837 ("tegra: mark BPMP driver as little-endian only") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20221215165336.1781080-1-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-11-17soc/tegra: cbb: Remove redundant dev_err callShang XiaoJing1-3/+1
devm_ioremap_resource() prints error message in itself. Remove the dev_err call to avoid redundant error message. Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-11-17soc/tegra: cbb: Use DEFINE_SHOW_ATTRIBUTE to simplify tegra_cbb_errLiu Shixin1-12/+1
Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code. No functional change. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
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