kernel/linux.git/drivers/soc/tegra/cbb, branch v6.6.133

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: 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: 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: cbb: tegra194: Use of_address_count() helper

2023-04-05T13:14:08+00:00

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 Signed-off-by: Thierry Reding

soc/tegra: cbb: Remove MODULE_LICENSE in non-modules

2023-04-05T13:07:30+00:00

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 Suggested-by: Luis Chamberlain Cc: Luis Chamberlain Cc: linux-modules@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Hitomi Hasegawa Cc: Thierry Reding Cc: Jonathan Hunter Cc: linux-tegra@vger.kernel.org Signed-off-by: Thierry Reding

soc: tegra: cbb: Drop empty platform remove function

2023-04-05T12:41:22+00:00

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 Reviewed-by: Sumit Gupta Signed-off-by: Thierry Reding

soc/tegra: cbb: remove linux/version.h

2023-03-23T14:44:34+00:00

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 Reviewed-by: Jon Hunter Signed-off-by: Thierry Reding

soc/tegra: cbb: Remove redundant dev_err call

2022-11-17T22:21:36+00:00

devm_ioremap_resource() prints error message in itself. Remove the dev_err call to avoid redundant error message. Signed-off-by: Shang XiaoJing Signed-off-by: Thierry Reding

soc/tegra: cbb: Use DEFINE_SHOW_ATTRIBUTE to simplify tegra_cbb_err

2022-11-17T22:21:00+00:00

Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code. No functional change. Signed-off-by: Liu Shixin Signed-off-by: Thierry Reding

soc/tegra: cbb: Check firewall before enabling error reporting

2022-11-11T14:39:45+00:00

To enable error reporting for a fabric to CCPLEX, we need to write its register for enabling error interrupt to CCPLEX during boot and later clear the error status register after error occurs. If a fabric's registers are protected and not accessible from CCPLEX, then accessing the registers will cause CBB firewall error. Add support to check whether write access from CCPLEX to the registers of a fabric is not blocked by it's firewall before enabling error reporting to CCPLEX for that fabric. Fixes: fc2f151d2314 ("soc/tegra: cbb: Add driver for Tegra234 CBB 2.0") Signed-off-by: Sumit Gupta Signed-off-by: Thierry Reding