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From: Rodrigo Vivi <rodrigo.vivi@intel.com>
To: Lyude Paul <lyude@redhat.com>
Cc: David Airlie <airlied@linux.ie>,
	nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
	open list <linux-kernel@vger.kernel.org>,
	dri-devel@lists.freedesktop.org,
	Sean Paul <seanpaul@chromium.org>
Subject: Re: [Nouveau] [RFC v3 07/10] drm/i915/dpcd_bl: Move VESA backlight enabling code closer together
Date: Mon, 8 Feb 2021 06:14:30 -0500
Message-ID: <20210208111430.GC4798@intel.com> (raw)
In-Reply-To: <20210205234515.1216538-8-lyude@redhat.com>

On Fri, Feb 05, 2021 at 06:45:11PM -0500, Lyude Paul wrote:
> No functional changes, just move set_vesa_backlight_enable() closer to it's
> only caller: intel_dp_aux_vesa_enable_backlight().
> 
> Signed-off-by: Lyude Paul <lyude@redhat.com>

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

> ---
>  .../drm/i915/display/intel_dp_aux_backlight.c | 54 +++++++++----------
>  1 file changed, 27 insertions(+), 27 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
> index f5ae2fb34c1f..431758058aa0 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
> @@ -270,33 +270,6 @@ intel_dp_aux_hdr_setup_backlight(struct intel_connector *connector, enum pipe pi
>  }
>  
>  /* VESA backlight callbacks */
> -static void set_vesa_backlight_enable(struct intel_connector *connector, bool enable)
> -{
> -	struct intel_dp *intel_dp = intel_attached_dp(connector);
> -	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> -	u8 reg_val = 0;
> -
> -	/* Early return when display use other mechanism to enable backlight. */
> -	if (!connector->panel.backlight.edp.vesa.aux_enable)
> -		return;
> -
> -	if (drm_dp_dpcd_readb(&intel_dp->aux, DP_EDP_DISPLAY_CONTROL_REGISTER, &reg_val) != 1) {
> -		drm_dbg_kms(&i915->drm, "Failed to read DPCD register 0x%x\n",
> -			    DP_EDP_DISPLAY_CONTROL_REGISTER);
> -		return;
> -	}
> -	if (enable)
> -		reg_val |= DP_EDP_BACKLIGHT_ENABLE;
> -	else
> -		reg_val &= ~(DP_EDP_BACKLIGHT_ENABLE);
> -
> -	if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_EDP_DISPLAY_CONTROL_REGISTER,
> -			       reg_val) != 1) {
> -		drm_dbg_kms(&i915->drm, "Failed to %s aux backlight\n",
> -			    enable ? "enable" : "disable");
> -	}
> -}
> -
>  static bool intel_dp_aux_vesa_backlight_dpcd_mode(struct intel_connector *connector)
>  {
>  	struct intel_dp *intel_dp = intel_attached_dp(connector);
> @@ -378,6 +351,33 @@ intel_dp_aux_vesa_set_backlight(const struct drm_connector_state *conn_state,
>  	}
>  }
>  
> +static void set_vesa_backlight_enable(struct intel_connector *connector, bool enable)
> +{
> +	struct intel_dp *intel_dp = intel_attached_dp(connector);
> +	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> +	u8 reg_val = 0;
> +
> +	/* Early return when display use other mechanism to enable backlight. */
> +	if (!connector->panel.backlight.edp.vesa.aux_enable)
> +		return;
> +
> +	if (drm_dp_dpcd_readb(&intel_dp->aux, DP_EDP_DISPLAY_CONTROL_REGISTER, &reg_val) != 1) {
> +		drm_dbg_kms(&i915->drm, "Failed to read DPCD register 0x%x\n",
> +			    DP_EDP_DISPLAY_CONTROL_REGISTER);
> +		return;
> +	}
> +	if (enable)
> +		reg_val |= DP_EDP_BACKLIGHT_ENABLE;
> +	else
> +		reg_val &= ~(DP_EDP_BACKLIGHT_ENABLE);
> +
> +	if (drm_dp_dpcd_writeb(&intel_dp->aux, DP_EDP_DISPLAY_CONTROL_REGISTER,
> +			       reg_val) != 1) {
> +		drm_dbg_kms(&i915->drm, "Failed to %s aux backlight\n",
> +			    enable ? "enable" : "disable");
> +	}
> +}
> +
>  static void
>  intel_dp_aux_vesa_enable_backlight(const struct intel_crtc_state *crtc_state,
>  				   const struct drm_connector_state *conn_state, u32 level)
> -- 
> 2.29.2
> 
> _______________________________________________
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> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-05 23:45 [Nouveau] [RFC v3 00/10] drm: Extract DPCD backlight helpers from i915, add support in nouveau Lyude Paul
2021-02-05 23:45 ` [Nouveau] [RFC v3 01/10] drm/nouveau/kms/nv40-/backlight: Assign prop type once Lyude Paul
2021-02-05 23:45 ` [Nouveau] [RFC v3 02/10] drm/nouveau/kms: Don't probe eDP connectors more then once Lyude Paul
2021-02-05 23:45 ` [Nouveau] [RFC v3 03/10] drm/i915/dpcd_bl: Remove redundant AUX backlight frequency calculations Lyude Paul
2021-02-05 23:45 ` [Nouveau] [RFC v3 04/10] drm/i915/dpcd_bl: Handle drm_dpcd_read/write() return values correctly Lyude Paul
2021-02-08 11:11   ` Rodrigo Vivi
2021-02-05 23:45 ` [Nouveau] [RFC v3 05/10] drm/i915/dpcd_bl: Cleanup intel_dp_aux_vesa_enable_backlight() a bit Lyude Paul
2021-02-06  0:07   ` Ilia Mirkin
2021-02-05 23:45 ` [Nouveau] [RFC v3 06/10] drm/i915/dpcd_bl: Cache some backlight capabilities in intel_panel.backlight Lyude Paul
2021-02-08 11:13   ` Rodrigo Vivi
2021-02-05 23:45 ` [Nouveau] [RFC v3 07/10] drm/i915/dpcd_bl: Move VESA backlight enabling code closer together Lyude Paul
2021-02-08 11:14   ` Rodrigo Vivi [this message]
2021-02-05 23:45 ` [Nouveau] [RFC v3 08/10] drm/i915/dpcd_bl: Return early in vesa_calc_max_backlight if we can't read PWMGEN_BIT_COUNT Lyude Paul
2021-02-05 23:45 ` [Nouveau] [RFC v3 09/10] drm/i915/dpcd_bl: Print return codes for VESA backlight failures Lyude Paul
2021-02-05 23:45 ` [Nouveau] [RFC v3 10/10] drm/dp: Extract i915's eDP backlight code into DRM helpers Lyude Paul
2021-02-08  8:46   ` Thomas Zimmermann
2021-02-08 23:03     ` Lyude Paul
2021-02-15 18:34       ` Thomas Zimmermann
2021-02-15 20:26         ` Lyude Paul
2021-02-08 22:52 ` [Nouveau] [RFC v3 00/10] drm: Extract DPCD backlight helpers from i915, add support in nouveau Lyude Paul

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