diff options
| author | Yabin Cui <yabinc@google.com> | 2023-01-28 02:10:01 +0300 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2023-01-30 14:45:32 +0300 |
| commit | 669c4614236a7f78a2b693d0024cbdfa8536eb5a (patch) | |
| tree | cb55e62d6c214593f8d43f74fe151067f0f372f8 /drivers/hwtracing/coresight/coresight-tmc.h | |
| parent | c88a15d9dd7dfabe2a13473fd1f9c4b9cd1b62c9 (diff) | |
| download | linux-669c4614236a7f78a2b693d0024cbdfa8536eb5a.tar.xz | |
coresight: tmc: Don't enable TMC when it's not ready.
If TMC ETR is enabled without being ready, in later use we may
see AXI bus errors caused by accessing invalid addresses.
Signed-off-by: Yabin Cui <yabinc@google.com>
[ Tweak error message ]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230127231001.1920947-1-yabinc@google.com
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc.h')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h index 66959557cf39..01c0382a29c0 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.h +++ b/drivers/hwtracing/coresight/coresight-tmc.h @@ -255,7 +255,7 @@ struct tmc_sg_table { }; /* Generic functions */ -void tmc_wait_for_tmcready(struct tmc_drvdata *drvdata); +int tmc_wait_for_tmcready(struct tmc_drvdata *drvdata); void tmc_flush_and_stop(struct tmc_drvdata *drvdata); void tmc_enable_hw(struct tmc_drvdata *drvdata); void tmc_disable_hw(struct tmc_drvdata *drvdata); |