[PATCH] drm/komeda: Add ACLK rate to sysfs
Mihail Atanassov
Mihail.Atanassov at arm.com
Wed Aug 28 11:03:49 UTC 2019
Expose node with the name 'aclk_hz'
Signed-off-by: Mihail Atanassov <mihail.atanassov at arm.com>
---
drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
index 0142ee991957..e8d67395a3b9 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.c
@@ -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,
};
--
2.22.0
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