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drm/komeda: Add ACLK rate to sysfs

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Expose node with the name 'aclk_hz'

Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Ayan kumar halder <ayan.halder@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190828110342.45936-1-mihail.atanassov@arm.com
This commit is contained in:
Mihail Atanassov 2019-08-28 11:03:49 +00:00 committed by Ayan kumar halder
parent 6914f8eb64
commit 5fcd055193
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/arm/display/komeda/komeda_dev.c
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@ -91,9 +91,19 @@ config_id_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static DEVICE_ATTR_RO(config_id);
static ssize_t
aclk_hz_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct komeda_dev *mdev = dev_to_mdev(dev);
return snprintf(buf, PAGE_SIZE, "%lu\n", clk_get_rate(mdev->aclk));
}
static DEVICE_ATTR_RO(aclk_hz);
static struct attribute *komeda_sysfs_entries[] = {
&dev_attr_core_id.attr,
&dev_attr_config_id.attr,
&dev_attr_aclk_hz.attr,
NULL,
};