kernel/linux.git/drivers/soc/tegra, branch v6.6.132

soc/tegra: fuse: Add Tegra114 nvmem cells and fuse lookups

2025-11-24T09:29:20+00:00

[ Upstream commit b9c01adedf38c69abb725a60a05305ef70dbce03 ] Add missing Tegra114 nvmem cells and fuse lookups which were added for Tegra124+ but omitted for Tegra114. Signed-off-by: Svyatoslav Ryhel Reviewed-by: Mikko Perttunen Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin

soc/tegra: pmc: Ensure power-domains are in a known state

2025-08-28T14:28:36+00:00

commit b6bcbce3359619d05bf387d4f5cc3af63668dbaa upstream. After commit 13a4b7fb6260 ("pmdomain: core: Leave powered-on genpds on until late_initcall_sync") was applied, the Tegra210 Jetson TX1 board failed to boot. Looking into this issue, before this commit was applied, if any of the Tegra power-domains were in 'on' state when the kernel booted, they were being turned off by the genpd core before any driver had chance to request them. This was purely by luck and a consequence of the power-domains being turned off earlier during boot. After this commit was applied, any power-domains in the 'on' state are kept on for longer during boot and therefore, may never transitioned to the off state before they are requested/used. The hang on the Tegra210 Jetson TX1 is caused because devices in some power-domains are accessed without the power-domain being turned off and on, indicating that the power-domain is not in a completely on state. >From reviewing the Tegra PMC driver code, if a power-domain is in the 'on' state there is no guarantee that all the necessary clocks associated with the power-domain are on and even if they are they would not have been requested via the clock framework and so could be turned off later. Some power-domains also have a 'clamping' register that needs to be configured as well. In short, if a power-domain is already 'on' it is difficult to know if it has been configured correctly. Given that the power-domains happened to be switched off during boot previously, to ensure that they are in a good known state on boot, fix this by switching off any power-domains that are on initially when registering the power-domains with the genpd framework. Note that commit 05cfb988a4d0 ("soc/tegra: pmc: Initialise resets associated with a power partition") updated the tegra_powergate_of_get_resets() function to pass the 'off' to ensure that the resets for the power-domain are in the correct state on boot. However, now that we may power off a domain on boot, if it is on, it is better to move this logic into the tegra_powergate_add() function so that there is a single place where we are handling the initial state of the power-domain. Fixes: a38045121bf4 ("soc/tegra: pmc: Add generic PM domain support") Signed-off-by: Jon Hunter Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250731121832.213671-1-jonathanh@nvidia.com Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman

soc/tegra: cbb: Clear ERR_FORCE register with ERR_STATUS

2025-08-15T10:08:42+00:00

[ Upstream commit a0647bca8966db04b79af72851ebd04224a4da40 ] When error is injected with the ERR_FORCE register, then this register is not auto cleared on clearing the ERR_STATUS register. This causes repeated interrupts on error injection. To fix, set the ERR_FORCE to zero along with clearing the ERR_STATUS register after handling error. Fixes: fc2f151d2314 ("soc/tegra: cbb: Add driver for Tegra234 CBB 2.0") Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin

soc/tegra: fuse: Update Tegra234 nvmem keepout list

2025-02-21T12:57:09+00:00

[ Upstream commit 836b341cc8dab680acc06a7883bfeea89680b689 ] Various Nvidia userspace applications and tests access following fuse via Fuse nvmem interface: * odmid * odminfo * boot_security_info * public_key_hash * reserved_odm0 * reserved_odm1 * reserved_odm2 * reserved_odm3 * reserved_odm4 * reserved_odm5 * reserved_odm6 * reserved_odm7 * odm_lock * pk_h1 * pk_h2 * revoke_pk_h0 * revoke_pk_h1 * security_mode * system_fw_field_ratchet0 * system_fw_field_ratchet1 * system_fw_field_ratchet2 * system_fw_field_ratchet3 * optin_enable Update tegra234_fuse_keepouts list to allow reading these fuse from nvmem sysfs interface. Signed-off-by: Kartik Rajput Link: https://lore.kernel.org/r/20241127061053.16775-1-kkartik@nvidia.com Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin

Merge tag 'tegra-for-6.6-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers

2023-08-12T10:01:51+00:00

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

soc/tegra: cbb: Remove unnecessary print function dev_err()

2023-07-27T16:46:37+00:00

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 Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4879 Signed-off-by: Jiapeng Chong Signed-off-by: Thierry Reding

soc/tegra: fuse: Sort includes alphabetically

2023-07-27T16:44:41+00:00

The includes were slightly out of order, so sort them correctly. Signed-off-by: Thierry Reding

soc/tegra: fuse: Use devm_platform_get_and_ioremap_resource()

2023-07-21T15:26:03+00:00

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 Signed-off-by: Thierry Reding

soc/tegra: Explicitly include correct DT includes

2023-07-21T15:12:19+00:00

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 Signed-off-by: Thierry Reding

soc: tegra: Move powergate-bpmp driver to the genpd dir

2023-07-14T08:40:56+00:00

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 Cc: Jonathan Hunter Cc: Mikko Perttunen Cc: Acked-by: Thierry Reding Signed-off-by: Ulf Hansson