[Intel-gfx] [PATCH 6/7] drm/i915: Fix the PHY compliance test vs. hotplug mishap

[Imre Deak]

On Thu, Jan 14, 2021 at 10:50:45PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> I accidentally added the compliance test hacks only to
> intel_dp_hotplug() which doesn't even get used on any DDI
> platform. Put the same crap into intel_ddi_hotplug().
> 
> Cc: Imre Deak <imre.deak at intel.com>
> Fixes: 193af12cd681 ("drm/i915: Shove the PHY test into the hotplug work")
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Imre Deak <imre.deak at intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c | 8 ++++++++
>  drivers/gpu/drm/i915/display/intel_dp.c  | 2 +-
>  drivers/gpu/drm/i915/display/intel_dp.h  | 1 +
>  3 files changed, 10 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 4443a4ab722f..d7df1828a740 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -5204,12 +5204,20 @@ intel_ddi_hotplug(struct intel_encoder *encoder,
>  {
>  	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>  	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
> +	struct intel_dp *intel_dp = &dig_port->dp;
>  	enum phy phy = intel_port_to_phy(i915, encoder->port);
>  	bool is_tc = intel_phy_is_tc(i915, phy);
>  	struct drm_modeset_acquire_ctx ctx;
>  	enum intel_hotplug_state state;
>  	int ret;
>  
> +	if (intel_dp->compliance.test_active &&
> +	    intel_dp->compliance.test_type == DP_TEST_LINK_PHY_TEST_PATTERN) {
> +		intel_dp_phy_test(encoder);
> +		/* just do the PHY test and nothing else */
> +		return INTEL_HOTPLUG_UNCHANGED;
> +	}
> +
>  	state = intel_encoder_hotplug(encoder, connector);
>  
>  	drm_modeset_acquire_init(&ctx, 0);
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 30713816bf9d..349647f6bbb9 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -5522,7 +5522,7 @@ static int intel_dp_do_phy_test(struct intel_encoder *encoder,
>  	return 0;
>  }
>  
> -static void intel_dp_phy_test(struct intel_encoder *encoder)
> +void intel_dp_phy_test(struct intel_encoder *encoder)
>  {
>  	struct drm_modeset_acquire_ctx ctx;
>  	int ret;
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
> index 6a2c759ad46f..d42860ef4521 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -137,5 +137,6 @@ const struct dpll *vlv_get_dpll(struct drm_i915_private *i915);
>  void intel_dp_check_frl_training(struct intel_dp *intel_dp);
>  void intel_dp_pcon_dsc_configure(struct intel_dp *intel_dp,
>  				 const struct intel_crtc_state *crtc_state);
> +void intel_dp_phy_test(struct intel_encoder *encoder);
>  
>  #endif /* __INTEL_DP_H__ */
> -- 
> 2.26.2
>