diff options
| author | Mao Jinlong <quic_jinlmao@quicinc.com> | 2024-01-31 02:54:19 -0800 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2024-02-12 10:45:09 +0000 |
| commit | 1bbe0a247e5d72f723daeecf41596bfa99e199f1 (patch) | |
| tree | fda4261ce568fb6fd6f7c4eabfd96ee323c0ea39 /drivers/hwtracing | |
| parent | 8e8804145a46e092c5207bb1258d29236a2cbcaa (diff) | |
| download | linux-1bbe0a247e5d72f723daeecf41596bfa99e199f1.tar.gz | |
coresight: etm4x: Set skip_power_up in etm4_init_arch_data function
skip_power_up is used in etm4_init_arch_data when set lpoverride. So
need to set the value of it before calling using it.
Fixes: 5214b563588e ("coresight: etm4x: Add support for sysreg only devices")
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240131105423.9519-1-quic_jinlmao@quicinc.com
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm4x-core.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index f087bc8d1da6b..c2ca4a02dfce1 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1196,6 +1196,7 @@ static void etm4_init_arch_data(void *info) struct etm4_init_arg *init_arg = info; struct etmv4_drvdata *drvdata; struct csdev_access *csa; + struct device *dev = init_arg->dev; int i; drvdata = dev_get_drvdata(init_arg->dev); @@ -1209,6 +1210,10 @@ static void etm4_init_arch_data(void *info) if (!etm4_init_csdev_access(drvdata, csa)) return; + if (!csa->io_mem || + fwnode_property_present(dev_fwnode(dev), "qcom,skip-power-up")) + drvdata->skip_power_up = true; + /* Detect the support for OS Lock before we actually use it */ etm_detect_os_lock(drvdata, csa); @@ -2036,11 +2041,6 @@ static int etm4_add_coresight_dev(struct etm4_init_arg *init_arg) if (!drvdata->arch) return -EINVAL; - /* TRCPDCR is not accessible with system instructions. */ - if (!desc.access.io_mem || - fwnode_property_present(dev_fwnode(dev), "qcom,skip-power-up")) - drvdata->skip_power_up = true; - major = ETM_ARCH_MAJOR_VERSION(drvdata->arch); minor = ETM_ARCH_MINOR_VERSION(drvdata->arch); |