On Sat, Jan 10, 2015 at 02:26:04AM +0530, Vandana Kannan wrote:
> Adding a debugfs entry to determine if DRRS is supported or not
>
> Signed-off-by: Vandana Kannan <vandana.kan...@intel.com>
> ---
> drivers/gpu/drm/i915/i915_debugfs.c | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
> b/drivers/gpu/drm/i915/i915_debugfs.c
> index e515aad..544b4c3 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2825,6 +2825,23 @@ static int i915_ddb_info(struct seq_file *m, void
> *unused)
> return 0;
> }
>
> +static int i915_drrs_status(struct seq_file *m, void *unused)
> +{
> + struct drm_info_node *node = m->private;
> + struct drm_device *dev = node->minor->dev;
> + struct intel_crtc *crtc;
> +
> + for_each_intel_crtc(dev, crtc) {
> + if (crtc->active) {
Don't you want to know which CRTC this is? Would this not be better
extending display_info with the extra CRTC status?
> + if (crtc->config.has_drrs)
> + seq_puts(m, "DRRS enabled");
> + else
> + seq_puts(m, "DRRS disabled");
> + }
> + }
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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