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Merge "coresight: tpdm: add integration_test sysfs node"

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qctecmdr 2020-07-29 04:04:36 -07:00 • committed by Gerrit - the friendly Code Review server
commit fb734243e6
1 changed files with 43 additions and 0 deletions
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43
drivers/hwtracing/coresight/coresight-tpdm.c
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@ -101,6 +101,8 @@ do { \
/* TPDM Specific Registers */
#define TPDM_ITATBCNTRL (0xEF0)
#define TPDM_CLK_CTRL (0x220)
#define TPDM_ITCNTRL (0xF00)
#define TPDM_DATASETS 32
#define TPDM_BC_MAX_COUNTERS 32
@ -134,6 +136,11 @@ do { \
#define HW_ENABLE_CHECK_VALUE 0x10
#define ATBCNTRL_VAL_32 0xC00F1409
#define ATBCNTRL_VAL_64 0xC01F1409
enum tpdm_dataset {
TPDM_DS_IMPLDEF,
TPDM_DS_DSB,
@ -909,6 +916,41 @@ static ssize_t reset_store(struct device *dev,
}
static DEVICE_ATTR_WO(reset);
static ssize_t integration_test_store(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t size)
{
int i, ret = 0;
unsigned long val;
struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent);
ret = kstrtoul(buf, 10, &val);
if (ret)
return ret;
if (val != 1 && val != 2)
return -EINVAL;
if (!drvdata->enable)
return -EINVAL;
if (val == 1)
val = ATBCNTRL_VAL_64;
else
val = ATBCNTRL_VAL_32;
TPDM_UNLOCK(drvdata);
tpdm_writel(drvdata, 0x1, TPDM_ITCNTRL);
for (i = 1; i < 5; i++)
tpdm_writel(drvdata, val, TPDM_ITATBCNTRL);
tpdm_writel(drvdata, 0, TPDM_ITCNTRL);
TPDM_LOCK(drvdata);
return size;
}
static DEVICE_ATTR_WO(integration_test);
static ssize_t gp_regs_show(struct device *dev,
struct device_attribute *attr,
char *buf)
@ -3962,6 +4004,7 @@ static struct attribute *tpdm_attrs[] = {
&dev_attr_available_datasets.attr,
&dev_attr_enable_datasets.attr,
&dev_attr_reset.attr,
&dev_attr_integration_test.attr,
&dev_attr_gp_regs.attr,
NULL,
};