kernel/linux.git/drivers/soc/tegra/cbb, branch v6.18.22

soc/tegra: cbb: Add support for CBB fabrics in Tegra254

2025-07-09T12:29:19+00:00

Add support for CBB 2.0 based fabrics in Tegra254 SoC using ACPI. Fabrics reporting errors are: C2C, GPU and Display_Cluster. Tegra254 uses a hardware based lookup to get target node address, so the target_map tables for each fabric are no longer needed. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Add support for CBB fabrics in Tegra264

2025-07-09T12:28:55+00:00

Add support for CBB 2.0 based fabrics in Tegra264 SoC using DT. Fabrics reporting errors are: SYSTEM, TOP0, UPHY0 and VISION. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Support HW lookup to get timed out target address

2025-07-09T12:28:07+00:00

Add support for hardware based lookup to get the address of the timed out target node. This features is added in upcoming SoCs and avoids the need for creating per fabric target_map tables in the driver. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Improve handling for per SoC fabric data

2025-07-09T12:27:41+00:00

Improve handling for the per SoC fabrics and targets. The below changes make them more flexible and ready for future SoC's. - Added SoC prefix to Fabric_ID enums. - Rename *lookup_target_timeout() to *sw_lookup_target_timeout() to make it separate from HW based lookup function to be added later. - Moved target_map within fabric_lookup table to make it easy to check whether SW vs HW lookup is supported and handle accordingly. - Slight improvements to some error prints. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Make error interrupt enable and status per SoC

2025-07-09T12:27:14+00:00

Make the error interrupt enable and error status fields as per SoC. Both of these fields can change for different SoC's. Moving them to per SoC data helps to set or clear the required bits only for a SoC. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Change master/slave to initiator/target

2025-07-09T12:26:53+00:00

Change usage of 'Master/Slave' to 'Initiator/Target' as per the new convention. Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: Clear ERR_FORCE register with ERR_STATUS

2025-07-09T12:26:03+00:00

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

soc/tegra: Fix spelling error in tegra234_lookup_slave_timeout()

2025-01-10T17:51:02+00:00

Fix spelling error in tegra234_lookup_slave_timeout(). Signed-off-by: liujing Link: https://lore.kernel.org/r/20241209055148.3749-1-liujing@cmss.chinamobile.com Signed-off-by: Thierry Reding

soc/tegra: cbb: Drop unnecessary debugfs error handling

2025-01-09T13:42:14+00:00

Kernel coding style expects all drivers to ignore debugfs errors. Partially because it is purely for debugging, not for important user interfaces. Simplify the code by dropping unnecessary probe failuring and error message on debugfs failures, which also fixes incorrect usage IS_ERR_OR_NULL() and Smatch warning: drivers/soc/tegra/cbb/tegra-cbb.c:80 tegra_cbb_err_debugfs_init() warn: passing zero to 'PTR_ERR' Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250104141958.115911-1-krzysztof.kozlowski@linaro.org Signed-off-by: Thierry Reding

soc: Switch back to struct platform_driver::remove()

2024-11-01T16:08:57+00:00

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/soc to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. On the way do a few whitespace changes to make indention consistent. Signed-off-by: Uwe Kleine-König Acked-by: Heiko Stuebner Acked-by: Herve Codina # for fsl/qe/{qmc,tsa}.c Acked-by: Bjorn Andersson # qcom parts Acked-by: Gabriel Somlo Acked-by: Andrew Jeffery # aspeed Link: https://lore.kernel.org/r/20241029074859.509587-2-u.kleine-koenig@baylibre.com Signed-off-by: Arnd Bergmann