[PATCH] drm/komeda: Add ACLK rate to sysfs

[james qian wang (Arm Technology China)]

Hi Mihail:

Looks good to me.

Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang at arm.com>

James.

On Wed, Aug 28, 2019 at 11:03:49AM +0000, Mihail Atanassov wrote:
> 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