mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

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: 5214b56358 ("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
This commit is contained in:
Mao Jinlong 2024-01-31 02:54:19 -08:00 committed by Suzuki K Poulose
parent 8e8804145a
commit 1bbe0a247e
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/hwtracing/coresight/coresight-etm4x-core.c
View File

@ -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);