From: Mihail Atanassov <Mihail.Atanassov@arm.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Mihail Atanassov <Mihail.Atanassov@arm.com>, nd <nd@arm.com>,
"james qian wang (Arm Technology China)"
<james.qian.wang@arm.com>, Liviu Dudau <Liviu.Dudau@arm.com>,
Brian Starkey <Brian.Starkey@arm.com>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] drm/komeda: Add ACLK rate to sysfs
Date: Wed, 28 Aug 2019 11:03:49 +0000 [thread overview]
Message-ID: <20190828110342.45936-1-mihail.atanassov@arm.com> (raw)
Expose node with the name 'aclk_hz'
Signed-off-by: Mihail Atanassov <mihail.atanassov@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
next reply other threads:[~2019-08-28 11:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-28 11:03 Mihail Atanassov [this message]
2019-08-28 14:15 ` [PATCH] drm/komeda: Add ACLK rate to sysfs james qian wang (Arm Technology China)
2019-09-03 13:46 ` Ayan Halder
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