From 5fcd055193c5d4cac6d205bd65e52c957ea057c2 Mon Sep 17 00:00:00 2001
From: Mihail Atanassov <Mihail.Atanassov@arm.com>
Date: Wed, 28 Aug 2019 11:03:49 +0000
Subject: drm/komeda: Add ACLK rate to sysfs
Git-commit: 5fcd055193c5d4cac6d205bd65e52c957ea057c2
Patch-mainline: v5.5-rc1
References: bsc#1152489
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
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
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,
};
--
2.28.0