From 5fcd055193c5d4cac6d205bd65e52c957ea057c2 Mon Sep 17 00:00:00 2001 From: Mihail Atanassov Date: Wed, 28 Aug 2019 11:03:49 +0000 Subject: drm/komeda: Add ACLK rate to sysfs Expose node with the name 'aclk_hz' Signed-off-by: Mihail Atanassov Reviewed-by: James Qian Wang (Arm Technology China) Signed-off-by: Ayan kumar halder Link: https://patchwork.freedesktop.org/patch/msgid/20190828110342.45936-1-mihail.atanassov@arm.com --- drivers/gpu/drm/arm/display/komeda/komeda_dev.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') 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, }; -- cgit v1.2.3