linux-dev/drivers/soc/tegra, branch master

Merge tag 'tegra-for-6.1-cbb' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers

2022-09-23T16:04:29Z

soc/tegra: cbb: Changes for v6.1-rc1 This introduces the CBB driver that is used to provide (a lot of) information about SErrors when things go wrong, instead of the kernel just crashing or hanging. * tag 'tegra-for-6.1-cbb' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: cbb: Add support for Tegra241 (Grace) soc/tegra: cbb: Add driver for Tegra234 CBB 2.0 soc/tegra: cbb: Add CBB 1.0 driver for Tegra194 soc/tegra: Set ERD bit to mask inband errors Link: https://lore.kernel.org/r/20220916101957.1635854-2-thierry.reding@gmail.com Signed-off-by: Arnd Bergmann

soc/tegra: pmc: Check device node status property

2022-09-15T12:10:49Z

In early_initcall, check if PMC device is available for use and avoid accessing PMC resources if the device node status property is set to disabled. Signed-off-by: Manish Bhardwaj Signed-off-by: Petlozu Pravareshwar Signed-off-by: Thierry Reding

soc/tegra: pmc: Use devm_clk_get_optional()

2022-09-15T11:13:40Z

Use devm_clk_get_optional() instead of hand writing it. While at it, use dev_err_probe() to further simplify the code. This is also less verbose if clk_get() returns -EPROBE_DEFER. Signed-off-by: Christophe JAILLET Signed-off-by: Thierry Reding

soc/tegra: fuse: Drop Kconfig dependency on TEGRA20_APB_DMA

2022-09-15T10:49:14Z

The DMA subsystem could be entirely disabled in Kconfig and then the TEGRA20_APB_DMA option isn't available too. Hence kernel configuration fails if DMADEVICES Kconfig option is disabled due to the unsatisfiable dependency. The FUSE driver isn't a critical driver and currently it only provides NVMEM interface to userspace which isn't known to be widely used, and thus, it's fine if FUSE driver fails to load. Let's remove the erroneous Kconfig dependency and let the FUSE driver to fail the probing if DMA is unavailable. Fixes: 19d41e5e9c68 ("soc/tegra: fuse: Add APB DMA dependency for Tegra20") Reported-by: Necip Fazil Yildiran Link: https://bugzilla.kernel.org/show_bug.cgi?id=209301 Signed-off-by: Dmitry Osipenko

soc/tegra: cbb: Add support for Tegra241 (Grace)

2022-09-15T10:41:36Z

Adding support for Tegra241 (Grace) which uses fabrics based on the CBB 2.0 architecture. Since Tegra241 requires ACPI, implement ACPI-based probe support. Fabrics reporting errors in Tegra241 are "CBB" and "BPMP". The CBB fabric connects various other CBB 2.0 based fabrics and also services the Initiators and Targets which are connected to itself. The BPMP fabric is present in the BPMP cluster. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Add driver for Tegra234 CBB 2.0

2022-09-15T10:41:36Z

Adding driver to handle errors from CBB version 2.0 which is used in Tegra234 SoC. The driver prints debug information about failed transaction on receiving interrupt from the error notifier. The error notifier collates the interrupts from various error monitor blocks and presents a single interrupt to the SoC interrupt controller. For timeout errors, the driver also does the lookup to find timed out clients and prints their client ID. Drivers for hardware that needs to be reset on timeout will have to call BPMP from the client IP's driver. BPMP firmware will also clear the timeout bit after resetting the IP so that next transactions are send to them after reset. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Add CBB 1.0 driver for Tegra194

2022-09-15T10:41:36Z

Adding driver to handle errors from Control Backbone (CBB) which are generated due to illegal accesses. CBB 1.0 is used in Tegra194 SoCs. When an error is reported from a NOC within CBB, the driver prints debug information about failed transaction like Error Code, Error Description, Master, Address, AXI ID, Cache, Protection, Security Group etc. It then causes system crash using BUG_ON() or call WARN() based on whether the error type is fatal or not. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: pmc: Add USB port wake events for Tegra194

2022-09-15T10:40:04Z

Tegra194 supports waking up from suspend when activity is detected on any of the USB ports. Add these wake events so that the system can be woken on such activity. Signed-off-by: Thierry Reding

soc/tegra: pmc: Add support for simple wake events

2022-09-15T10:39:34Z

Simple wake events are neither mapped to GIC interrupts nor have an associated GPIO line. They are close to GPIO-backed wake events in that the IRQ hierarchy processing needs to stop at the PMC level, but since there is no dedicated GPIO line for them, let's turn them into a separate type. Signed-off-by: Thierry Reding

soc/tegra: pmc: Remove leading space

2022-09-15T10:39:02Z

Remove a leading space from a line that is otherwise indented by tabs. Signed-off-by: Thierry Reding