On Wed, Oct 03, 2018 at 12:36:01PM -0700, Dhinakaran Pandiyan wrote:
> MST is enabled by default on all platforms that support it. I don't think
> we should be providing a switch to work around MST issues as the feature
> has been supported for a while now. Let's kill this module parameter
> that we also do not test in CI.
>
> Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_params.c | 3 ---
> drivers/gpu/drm/i915/i915_params.h | 1 -
> drivers/gpu/drm/i915/intel_dp.c | 6 ------
> 3 files changed, 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
> index bd6bd8879cab..ea5961ae6803 100644
> --- a/drivers/gpu/drm/i915/i915_params.c
> +++ b/drivers/gpu/drm/i915/i915_params.c
> @@ -156,9 +156,6 @@ i915_param_named_unsafe(huc_firmware_path, charp, 0400,
> i915_param_named_unsafe(dmc_firmware_path, charp, 0400,
> "DMC firmware path to use instead of the default one");
>
> -i915_param_named_unsafe(enable_dp_mst, bool, 0600,
> - "Enable multi-stream transport (MST) for new DisplayPort sinks. (default: true)");
> -
> #if IS_ENABLED(CONFIG_DRM_I915_DEBUG)
> i915_param_named_unsafe(inject_load_failure, uint, 0400,
> "Force an error after a number of failure check points (0:disabled (default), N:force failure at the Nth failure check point)");
> diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
> index 7e56c516c815..5d995af2ef58 100644
> --- a/drivers/gpu/drm/i915/i915_params.h
> +++ b/drivers/gpu/drm/i915/i915_params.h
> @@ -65,7 +65,6 @@ struct drm_printer;
> param(bool, disable_display, false) \
> param(bool, verbose_state_checks, true) \
> param(bool, nuclear_pageflip, false) \
> - param(bool, enable_dp_mst, true) \
> param(bool, enable_dpcd_backlight, false) \
> param(bool, enable_gvt, false)
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 15a981ef5966..b0d8baae6d96 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -4054,9 +4054,6 @@ intel_dp_can_mst(struct intel_dp *intel_dp)
> {
> u8 mstm_cap;
>
> - if (!i915_modparams.enable_dp_mst)
> - return false;
> -
> if (!intel_dp->can_mst)
> return false;
>
> @@ -4072,9 +4069,6 @@ intel_dp_can_mst(struct intel_dp *intel_dp)
> static void
> intel_dp_configure_mst(struct intel_dp *intel_dp)
> {
> - if (!i915_modparams.enable_dp_mst)
> - return;
> -
> if (!intel_dp->can_mst)
> return;
>
> --
> 2.17.1
>
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