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| author | Mao Jinlong <quic_jinlmao@quicinc.com> | 2024-01-31 13:54:19 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-27 01:17:29 +0300 |
| commit | 8f252c20be721b0a8b831625c36593cfd9740415 (patch) | |
| tree | 059dd90d9a51f3cc105731e468c37af95a784d91 | |
| parent | 368225919bda2576214280f15778b877d6642492 (diff) | |
| download | linux-8f252c20be721b0a8b831625c36593cfd9740415.tar.xz | |
coresight: etm4x: Set skip_power_up in etm4_init_arch_data function
[ Upstream commit 1bbe0a247e5d72f723daeecf41596bfa99e199f1 ]
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
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -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 ce1995a2827f..2e2cabc5f50a 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -1200,6 +1200,7 @@ 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); @@ -1213,6 +1214,10 @@ 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); @@ -2040,11 +2045,6 @@ 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); |