kernel/linux.git/drivers/gpu/drm/tegra, branch v7.2-rc1

Merge tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-06-17T18:21:40+00:00

Pull SoC driver updates from Arnd Bergmann: "There are a few added drivers, but mostly the normal maintenance to drivers for firmware, memory controller and other soc specific hardware: - The NXP QuickEngine gets modern MSI support, which allows some cleanups to the GICv3 irqchip chip driver - A new SoC specific driver for the Renesas R-Car MFIS unit is added, encapsulating support for the on-chip mailbox and hwspinlock implementations that are not easily separated into individual drivers - The Qualcomm SoC drivers add support for additional SoC implementations, and flexibility around power management for the serial-engine driver as well as probing the LLCC driver using custom hardware descriptions inside of the device itself. - Added support for the Samsung thermal management unit - A cleanup to the Tegra 'PMC' driver interfaces to remove legacy APIs and allow multiple PMC instances everywhere. - Updates to the TI SCI and KNAS drivers to improve suspend/resume support. - Minor driver changes for mediatek, xilinx, allwinner, aspeed, tegra, broadcom, amd, microchip and starfive specific drivers - Memory controller updates for Tegra and Renesas for additional SoC types and other improvements. - Firmware driver updates for Arm FF-A, SMCCC and SCMI interfaces, to update driver probing, object lifetimes and address minor bugs" * tag 'soc-drivers-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (189 commits) Revert "firmware: zynqmp: Add dynamic CSU register discovery and sysfs interface" Revert "Documentation: ABI: add sysfs interface for ZynqMP CSU registers" memory: tegra234: drop dead NULL check in tegra234_mc_icc_aggregate() memory: tegra264: drop redundant tegra264_mc_icc_aggregate() memory: tegra186-emc: stop borrowing MC aggregate hook for EMC soc: aspeed: cleanup dead default for ASPEED_SOCINFO firmware: tegra: bpmp: Add support for multi-socket platforms firmware: tegra: bpmp: Propagate debugfs errors soc/tegra: pmc: Add Tegra238 support soc/tegra: pmc: Restrict power-off handler to Nexus 7 soc/tegra: pmc: Populate powergate debugfs only when needed soc/tegra: pmc: Move legacy code behind CONFIG_ARM guard soc/tegra: pmc: Remove unused legacy functions soc/tegra: pmc: Create PMC context dynamically firmware: samsung: acpm: remove compile-testing stubs firmware: samsung: acpm: Add devm_acpm_get_by_phandle helper firmware: samsung: acpm: Add TMU protocol support firmware: samsung: acpm: Make acpm_ops const and access via pointer firmware: samsung: acpm: Drop redundant _ops suffix in acpm_ops members firmware: samsung: acpm: Annotate rx_data->cmd with __counted_by_ptr ...

drm/tegra: Explicitly specify PMC instance to use

2026-05-28T20:46:30+00:00

Currently the kernel relies on a global variable to reference the PMC context. Use an explicit lookup for the PMC and pass that to the public PMC APIs. Acked-by: Jon Hunter Signed-off-by: Thierry Reding

drm/tegra: Fix iommu_map_sgtable() return value check

2026-05-28T15:19:30+00:00

Commit "iommu: return full error code from iommu_map_sg[_atomic]()" changed iommu_map_sgtable() to return an ssize_t and negative values in error cases, rather than a size_t and a zero. Update tegra_bo_iommu_map() to correctly check for errors from iommu_map_sgtable. Fixes: ad8f36e4b6b1 ("iommu: return full error code from iommu_map_sg[_atomic]()") Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260421-iommu_map_sgtable-return-v1-2-fb484c07d2a1@nvidia.com

drm/tegra: dc: Fix device node reference leak in tegra_dc_has_output()

2026-05-28T15:19:30+00:00

The of_for_each_phandle() macro increments the reference count of the device node it iterates over. If the loop exits early, the reference must be released manually. In tegra_dc_has_output(), the function returns true immediately when a match is found, failing to release the current node's reference. Fix this by adding a call to of_node_put() before returning from the loop. Fixes: c57997bce423 ("drm/tegra: sor: Add Tegra186 support") Signed-off-by: Felix Gu Acked-by: Mikko Perttunen Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260128-dc-v1-1-a88205826301@gmail.com

drm/tegra: Enable cmu for Tegra186 and Tegra194

2026-05-28T15:19:29+00:00

Without the cmu, nvdisplay will display colors that are notably darker than intended. The vendor bootloader and the downstream display driver enable the cmu and sets a sRGB table. Loading that table here results in the intended colors. Co-developed-by: Kurt Kiefer Signed-off-by: Kurt Kiefer Signed-off-by: Aaron Kling Tested-by: Jasper Korten Reviewed-by: Mikko Perttunen Tested-by: Mikko Perttunen # Jetson AGX Xavier Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260407-tegra-drm-cmu-v4-1-2fe95f305afd@gmail.com

drm/tegra: Make tegra_fb_alloc() an internal interface

2026-05-28T15:19:29+00:00

Fbdev framebuffer allocation now goes through the regular ioctl call chain. This makes tegra_fb_alloc() an internal helper function. Declare it as static. Signed-off-by: Thomas Zimmermann Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260421073646.144712-6-tzimmermann@suse.de

drm/tegra: fbdev: Use a DRM client buffer

2026-05-28T15:19:29+00:00

Replace the internal DRM framebuffer with a DRM client buffer. The client buffer allocates the DRM framebuffer on a file and also uses GEM object handles via the regular ADDFB2 interfaces. Using client-buffer interfaces unifies framebuffer allocation for DRM clients in user space and tegra's internal fbdev emulation. It also simplifies the clean-up side of the fbdev emulation. Signed-off-by: Thomas Zimmermann Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260421073646.144712-5-tzimmermann@suse.de

drm/tegra: fbdev: Calculate buffer geometry with format helpers

2026-05-28T15:19:29+00:00

Replace the geometry and size calculation in tegra's fbdev emulation with DRM format helpers. This consists of a 4CC lookup from the fbdev parameters, format lookup, pitch calculation and size calculation. Then allocate the GEM buffer object for the framebuffer memory from the calculated size. Set up mode_cmd with the calculated values just before allocating the framebuffer. This code will later be replaced with a DRM client buffer. Set framebuffer size fields in struct fb_info from the size stored in the GEM buffer object instead of what has been requested. The requested size is an estimate, while the buffer size is the exact value rounded to the correct alignment. Signed-off-by: Thomas Zimmermann Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260421073646.144712-4-tzimmermann@suse.de

drm/tegra: fbdev: Remove offset into framebuffer memory

2026-05-28T15:19:29+00:00

The screen_buffer field in struct fb_info contains the kernel address of the first byte of framebuffer memory. Do not add the display offset. This offset only describes scrolling during scanout. Signed-off-by: Thomas Zimmermann Fixes: de2ba664c30f ("gpu: host1x: drm: Add memory manager and fb") Cc: dri-devel@lists.freedesktop.org Cc: linux-tegra@vger.kernel.org Cc: # v3.10+ Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260421073646.144712-3-tzimmermann@suse.de

drm/tegra: fbdev: Do not assign to struct drm_fb_helper.info

2026-05-28T15:19:29+00:00

That field already contains the value being assigned. No need to do this twice. Signed-off-by: Thomas Zimmermann Fixes: 63c971af4036 ("drm/fb-helper: Allocate and release fb_info in single place") Cc: linux-tegra@vger.kernel.org Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260421073646.144712-2-tzimmermann@suse.de