[PATCH] Revert "drm/amd/display: Expose connector VRR range via debugfs"

[Christian König]

Am 22.06.20 um 16:42 schrieb Bhanuprakash Modem:
> As both VRR min and max are already part of drm_display_info,
> drm can expose this VRR range for each connector.
>
> Hence this logic should move to core DRM.
>
> This reverts commit 727962f030c23422a01e8b22d0f463815fb15ec4.
>
> Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
> Cc: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
> Cc: Harry Wentland <harry.wentland at amd.com>
> Cc: Alex Deucher <alexander.deucher at amd.com>
> Cc: Manasi Navare <manasi.d.navare at intel.com>

Sounds like it makes sense, patch is Acked-by: Christian König 
<christian.koenig at amd.com>

> ---
>   .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 20 -------------------
>   1 file changed, 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> index 076af267b488..71387d2af2ed 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
> @@ -820,24 +820,6 @@ static int output_bpc_show(struct seq_file *m, void *data)
>   	return res;
>   }
>   
> -/*
> - * Returns the min and max vrr vfreq through the connector's debugfs file.
> - * Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range
> - */
> -static int vrr_range_show(struct seq_file *m, void *data)
> -{
> -	struct drm_connector *connector = m->private;
> -	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
> -
> -	if (connector->status != connector_status_connected)
> -		return -ENODEV;
> -
> -	seq_printf(m, "Min: %u\n", (unsigned int)aconnector->min_vfreq);
> -	seq_printf(m, "Max: %u\n", (unsigned int)aconnector->max_vfreq);
> -
> -	return 0;
> -}
> -
>   #ifdef CONFIG_DRM_AMD_DC_HDCP
>   /*
>    * Returns the HDCP capability of the Display (1.4 for now).
> @@ -1001,7 +983,6 @@ static ssize_t dp_dpcd_data_read(struct file *f, char __user *buf,
>   DEFINE_SHOW_ATTRIBUTE(dmub_fw_state);
>   DEFINE_SHOW_ATTRIBUTE(dmub_tracebuffer);
>   DEFINE_SHOW_ATTRIBUTE(output_bpc);
> -DEFINE_SHOW_ATTRIBUTE(vrr_range);
>   #ifdef CONFIG_DRM_AMD_DC_HDCP
>   DEFINE_SHOW_ATTRIBUTE(hdcp_sink_capability);
>   #endif
> @@ -1059,7 +1040,6 @@ static const struct {
>   		{"phy_settings", &dp_phy_settings_debugfs_fop},
>   		{"test_pattern", &dp_phy_test_pattern_fops},
>   		{"output_bpc", &output_bpc_fops},
> -		{"vrr_range", &vrr_range_fops},
>   #ifdef CONFIG_DRM_AMD_DC_HDCP
>   		{"hdcp_sink_capability", &hdcp_sink_capability_fops},
>   #endif