[PATCH] drm/i915/dp: allow configuring eDP panel fitting scaling mode

[PATCH] drm/i915/dp: allow configuring eDP panel fitting scaling mode

[Yuly Novikov]

LVDS allowed changing panel fitting scaling mode, while eDP didn't.
Copied relevant code from LVDS to eDP.
This also changes default mode on eDP to ascpect ratio preserving scaling.

Signed-off-by: Yuly Novikov <ynovikov@chromium.org>
---
 drivers/gpu/drm/i915/intel_dp.c  |   33 ++++++++++++++++++++++++++++++---
 drivers/gpu/drm/i915/intel_drv.h |    1 +
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 368ed8e..a65546e 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -685,7 +685,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder,
 
 	if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
 		intel_fixed_panel_mode(intel_dp->panel_fixed_mode, adjusted_mode);
-		intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN,
+		intel_pch_panel_fitting(dev, intel_dp->fitting_mode,
 					mode, adjusted_mode);
 	}
 
@@ -2358,6 +2358,22 @@ intel_dp_set_property(struct drm_connector *connector,
 		goto done;
 	}
 
+	if (is_edp(intel_dp) &&
+		property == connector->dev->mode_config.scaling_mode_property) {
+		if (val == DRM_MODE_SCALE_NONE) {
+			DRM_DEBUG_KMS("no scaling not supported\n");
+			return -EINVAL;
+		}
+
+		if (intel_dp->fitting_mode == val) {
+			/* the eDP scaling property is not changed */
+			return 0;
+		}
+		intel_dp->fitting_mode = val;
+
+		goto done;
+	}
+
 	return -EINVAL;
 
 done:
@@ -2469,10 +2485,21 @@ bool intel_dpd_is_edp(struct drm_device *dev)
 }
 
 static void
-intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector)
+intel_dp_add_properties(struct drm_device *dev,
+			struct intel_dp *intel_dp,
+			struct drm_connector *connector)
 {
 	intel_attach_force_audio_property(connector);
 	intel_attach_broadcast_rgb_property(connector);
+
+	if (is_edp(intel_dp)) {
+		drm_mode_create_scaling_mode_property(dev);
+		drm_connector_attach_property(
+			connector,
+			dev->mode_config.scaling_mode_property,
+			DRM_MODE_SCALE_ASPECT);
+		intel_dp->fitting_mode = DRM_MODE_SCALE_ASPECT;
+	}
 }
 
 void
@@ -2665,7 +2692,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 		intel_panel_setup_backlight(dev);
 	}
 
-	intel_dp_add_properties(intel_dp, connector);
+	intel_dp_add_properties(dev, intel_dp, connector);
 
 	/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
 	 * 0xd.  Failure to do so will result in spurious interrupts being
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index fe71425..da50cd4 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -358,6 +358,7 @@ struct intel_dp {
 	int backlight_on_delay;
 	int backlight_off_delay;
 	struct drm_display_mode *panel_fixed_mode;  /* for eDP */
+	int fitting_mode;  /* for eDP */
 	struct delayed_work panel_vdd_work;
 	bool want_panel_vdd;
 	struct edid *edid; /* cached EDID for eDP */
-- 
1.7.7.3

Re: [PATCH] drm/i915/dp: allow configuring eDP panel fitting scaling mode

[Daniel Vetter]

On Thu, Oct 25, 2012 at 01:57:47PM -0400, Yuly Novikov wrote:
> LVDS allowed changing panel fitting scaling mode, while eDP didn't.
> Copied relevant code from LVDS to eDP.
> This also changes default mode on eDP to ascpect ratio preserving scaling.
> 
> Signed-off-by: Yuly Novikov <ynovikov@chromium.org>

Jani from our team is working on unifying a bunch of things between lvds
and eDP, some of them already merged into drm-intel-next-queued branch.
Jani, can you please take a look?

Thanks, Daniel

> ---
>  drivers/gpu/drm/i915/intel_dp.c  |   33 ++++++++++++++++++++++++++++++---
>  drivers/gpu/drm/i915/intel_drv.h |    1 +
>  2 files changed, 31 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 368ed8e..a65546e 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -685,7 +685,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder,
>  
>  	if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
>  		intel_fixed_panel_mode(intel_dp->panel_fixed_mode, adjusted_mode);
> -		intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN,
> +		intel_pch_panel_fitting(dev, intel_dp->fitting_mode,
>  					mode, adjusted_mode);
>  	}
>  
> @@ -2358,6 +2358,22 @@ intel_dp_set_property(struct drm_connector *connector,
>  		goto done;
>  	}
>  
> +	if (is_edp(intel_dp) &&
> +		property == connector->dev->mode_config.scaling_mode_property) {
> +		if (val == DRM_MODE_SCALE_NONE) {
> +			DRM_DEBUG_KMS("no scaling not supported\n");
> +			return -EINVAL;
> +		}
> +
> +		if (intel_dp->fitting_mode == val) {
> +			/* the eDP scaling property is not changed */
> +			return 0;
> +		}
> +		intel_dp->fitting_mode = val;
> +
> +		goto done;
> +	}
> +
>  	return -EINVAL;
>  
>  done:
> @@ -2469,10 +2485,21 @@ bool intel_dpd_is_edp(struct drm_device *dev)
>  }
>  
>  static void
> -intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector)
> +intel_dp_add_properties(struct drm_device *dev,
> +			struct intel_dp *intel_dp,
> +			struct drm_connector *connector)
>  {
>  	intel_attach_force_audio_property(connector);
>  	intel_attach_broadcast_rgb_property(connector);
> +
> +	if (is_edp(intel_dp)) {
> +		drm_mode_create_scaling_mode_property(dev);
> +		drm_connector_attach_property(
> +			connector,
> +			dev->mode_config.scaling_mode_property,
> +			DRM_MODE_SCALE_ASPECT);
> +		intel_dp->fitting_mode = DRM_MODE_SCALE_ASPECT;
> +	}
>  }
>  
>  void
> @@ -2665,7 +2692,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
>  		intel_panel_setup_backlight(dev);
>  	}
>  
> -	intel_dp_add_properties(intel_dp, connector);
> +	intel_dp_add_properties(dev, intel_dp, connector);
>  
>  	/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
>  	 * 0xd.  Failure to do so will result in spurious interrupts being
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index fe71425..da50cd4 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -358,6 +358,7 @@ struct intel_dp {
>  	int backlight_on_delay;
>  	int backlight_off_delay;
>  	struct drm_display_mode *panel_fixed_mode;  /* for eDP */
> +	int fitting_mode;  /* for eDP */
>  	struct delayed_work panel_vdd_work;
>  	bool want_panel_vdd;
>  	struct edid *edid; /* cached EDID for eDP */
> -- 
> 1.7.7.3
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch

[PATCH 0/3] drm/i915: eDP scaling mode change support

[Jani Nikula]

[Dropped lkml, added intel-gfx]

Hi Yuly, here's a slightly modified version of your patch, rebased on
drm-intel-next-queued. I kept your authorship, but any new errors are
totally mine...

These are compile tested only; I'd appreciate if you could check it
still does what it says on the box!

BR,
Jani.


Jani Nikula (1):
  drm/i915/lvds: move fitting mode from intel_lvds_connector to
    intel_panel

Yuly Novikov (2):
  drm/i915/dp: allow configuring eDP panel fitting scaling mode
  drm/i915/dp: change eDP default scaling mode to respect aspect ratio

 drivers/gpu/drm/i915/intel_dp.c   |   31 ++++++++++++++++++++++++++++++-
 drivers/gpu/drm/i915/intel_drv.h  |    1 +
 drivers/gpu/drm/i915/intel_lvds.c |   24 ++++++++++--------------
 3 files changed, 41 insertions(+), 15 deletions(-)

-- 
1.7.9.5

[PATCH 1/3] drm/i915/lvds: move fitting mode from intel_lvds_connector to intel_panel

[Jani Nikula]

Prepare for supporting scaling mode configuration also in eDP.

Includes a drive-by-removal of an outdated comment about fitting mode.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/intel_drv.h  |    1 +
 drivers/gpu/drm/i915/intel_lvds.c |   24 ++++++++++--------------
 2 files changed, 11 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 81d2020..8839ed5 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -165,6 +165,7 @@ struct intel_encoder {
 
 struct intel_panel {
 	struct drm_display_mode *fixed_mode;
+	int fitting_mode;
 };
 
 struct intel_connector {
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 587ed0f..ffa0051 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -44,7 +44,6 @@ struct intel_lvds_connector {
 	struct intel_connector base;
 
 	struct notifier_block lid_notifier;
-	int fitting_mode;
 };
 
 struct intel_lvds_encoder {
@@ -253,8 +252,8 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
-	struct intel_lvds_connector *lvds_connector =
-		lvds_encoder->attached_connector;
+	struct intel_connector *intel_connector =
+		&lvds_encoder->attached_connector->base;
 	struct intel_crtc *intel_crtc = lvds_encoder->base.new_crtc;
 	u32 pfit_control = 0, pfit_pgm_ratios = 0, border = 0;
 	int pipe;
@@ -274,11 +273,12 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
 	 * with the panel scaling set up to source from the H/VDisplay
 	 * of the original mode.
 	 */
-	intel_fixed_panel_mode(lvds_connector->base.panel.fixed_mode,
+	intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
 			       adjusted_mode);
 
 	if (HAS_PCH_SPLIT(dev)) {
-		intel_pch_panel_fitting(dev, lvds_connector->fitting_mode,
+		intel_pch_panel_fitting(dev,
+					intel_connector->panel.fitting_mode,
 					mode, adjusted_mode);
 		return true;
 	}
@@ -304,7 +304,7 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
 
 	drm_mode_set_crtcinfo(adjusted_mode, 0);
 
-	switch (lvds_connector->fitting_mode) {
+	switch (intel_connector->panel.fitting_mode) {
 	case DRM_MODE_SCALE_CENTER:
 		/*
 		 * For centered modes, we have to calculate border widths &
@@ -573,7 +573,7 @@ static int intel_lvds_set_property(struct drm_connector *connector,
 				   struct drm_property *property,
 				   uint64_t value)
 {
-	struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector);
+	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct drm_device *dev = connector->dev;
 
 	if (property == dev->mode_config.scaling_mode_property) {
@@ -584,11 +584,11 @@ static int intel_lvds_set_property(struct drm_connector *connector,
 			return -EINVAL;
 		}
 
-		if (lvds_connector->fitting_mode == value) {
+		if (intel_connector->panel.fitting_mode == value) {
 			/* the LVDS scaling property is not changed */
 			return 0;
 		}
-		lvds_connector->fitting_mode = value;
+		intel_connector->panel.fitting_mode = value;
 
 		crtc = intel_attached_encoder(connector)->base.crtc;
 		if (crtc && crtc->enabled) {
@@ -1008,14 +1008,10 @@ bool intel_lvds_init(struct drm_device *dev)
 
 	/* create the scaling mode property */
 	drm_mode_create_scaling_mode_property(dev);
-	/*
-	 * the initial panel fitting mode will be FULL_SCREEN.
-	 */
-
 	drm_connector_attach_property(&intel_connector->base,
 				      dev->mode_config.scaling_mode_property,
 				      DRM_MODE_SCALE_ASPECT);
-	lvds_connector->fitting_mode = DRM_MODE_SCALE_ASPECT;
+	intel_connector->panel.fitting_mode = DRM_MODE_SCALE_ASPECT;
 	/*
 	 * LVDS discovery:
 	 * 1) check for EDID on DDC
-- 
1.7.9.5

[PATCH 2/3] drm/i915/dp: allow configuring eDP panel fitting scaling mode

[Jani Nikula]

From: Yuly Novikov <ynovikov@chromium.org>

LVDS allowed changing panel fitting scaling mode, while eDP didn't. Copied
relevant code from LVDS to eDP.

Signed-off-by: Yuly Novikov <ynovikov@chromium.org>
[Jani: use fitting mode in intel_panel, remove default mode change]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c |   31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 2a9998a..30314c0 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -693,7 +693,8 @@ intel_dp_mode_fixup(struct drm_encoder *encoder,
 	if (is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
 		intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
 				       adjusted_mode);
-		intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN,
+		intel_pch_panel_fitting(dev,
+					intel_connector->panel.fitting_mode,
 					mode, adjusted_mode);
 	}
 
@@ -2359,6 +2360,7 @@ intel_dp_set_property(struct drm_connector *connector,
 		      uint64_t val)
 {
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
+	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct intel_dp *intel_dp = intel_attached_dp(connector);
 	int ret;
 
@@ -2395,6 +2397,22 @@ intel_dp_set_property(struct drm_connector *connector,
 		goto done;
 	}
 
+	if (is_edp(intel_dp) &&
+	    property == connector->dev->mode_config.scaling_mode_property) {
+		if (val == DRM_MODE_SCALE_NONE) {
+			DRM_DEBUG_KMS("no scaling not supported\n");
+			return -EINVAL;
+		}
+
+		if (intel_connector->panel.fitting_mode == val) {
+			/* the eDP scaling property is not changed */
+			return 0;
+		}
+		intel_connector->panel.fitting_mode = val;
+
+		goto done;
+	}
+
 	return -EINVAL;
 
 done:
@@ -2519,8 +2537,19 @@ bool intel_dpd_is_edp(struct drm_device *dev)
 static void
 intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector)
 {
+	struct intel_connector *intel_connector = to_intel_connector(connector);
+
 	intel_attach_force_audio_property(connector);
 	intel_attach_broadcast_rgb_property(connector);
+
+	if (is_edp(intel_dp)) {
+		drm_mode_create_scaling_mode_property(connector->dev);
+		drm_connector_attach_property(
+			connector,
+			connector->dev->mode_config.scaling_mode_property,
+			DRM_MODE_SCALE_FULLSCREEN);
+		intel_connector->panel.fitting_mode = DRM_MODE_SCALE_FULLSCREEN;
+	}
 }
 
 static void
-- 
1.7.9.5

[PATCH 3/3] drm/i915/dp: change eDP default scaling mode to respect aspect ratio

[Jani Nikula]

From: Yuly Novikov <ynovikov@chromium.org>

Signed-off-by: Yuly Novikov <ynovikov@chromium.org>
[Jani: ripped this change separate from the scaling mode change support]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 30314c0..a1b9fc13 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2547,8 +2547,8 @@ intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connect
 		drm_connector_attach_property(
 			connector,
 			connector->dev->mode_config.scaling_mode_property,
-			DRM_MODE_SCALE_FULLSCREEN);
-		intel_connector->panel.fitting_mode = DRM_MODE_SCALE_FULLSCREEN;
+			DRM_MODE_SCALE_ASPECT);
+		intel_connector->panel.fitting_mode = DRM_MODE_SCALE_ASPECT;
 	}
 }
 
-- 
1.7.9.5

Re: [Intel-gfx] [PATCH 0/3] drm/i915: eDP scaling mode change support

[Paulo Zanoni]

Hi

2012/10/26 Jani Nikula <jani.nikula@intel.com>:
> [Dropped lkml, added intel-gfx]
>
> Hi Yuly, here's a slightly modified version of your patch, rebased on
> drm-intel-next-queued. I kept your authorship, but any new errors are
> totally mine...
>
> These are compile tested only; I'd appreciate if you could check it
> still does what it says on the box!

I have nothing to add or remove. Tested on HSW eDP, used "xrandr" to
alternate the property values. Works fine.

Being consistent on the default value between LVDS and eDP is
certainly a nice thing.

For the 3 patches:
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

>
> BR,
> Jani.
>
>
> Jani Nikula (1):
>   drm/i915/lvds: move fitting mode from intel_lvds_connector to
>     intel_panel
>
> Yuly Novikov (2):
>   drm/i915/dp: allow configuring eDP panel fitting scaling mode
>   drm/i915/dp: change eDP default scaling mode to respect aspect ratio
>
>  drivers/gpu/drm/i915/intel_dp.c   |   31 ++++++++++++++++++++++++++++++-
>  drivers/gpu/drm/i915/intel_drv.h  |    1 +
>  drivers/gpu/drm/i915/intel_lvds.c |   24 ++++++++++--------------
>  3 files changed, 41 insertions(+), 15 deletions(-)
>
> --
> 1.7.9.5
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx



-- 
Paulo Zanoni

Re: [Intel-gfx] [PATCH 0/3] drm/i915: eDP scaling mode change support

[Yuly Novikov]

[-- Attachment #1.1: Type: text/plain, Size: 1838 bytes --]

Hi Jani,

Sorry for the delay, our branches have diverged significantly, and it took
me quite a while to merge your changes.
On the bright sight, I've tested the patch on SandyBridge LDVS and
IvyBridge eDP, and it works fine.

Regards,
Yuly.


On Fri, Oct 26, 2012 at 9:44 AM, Paulo Zanoni <przanoni@gmail.com> wrote:

> Hi
>
> 2012/10/26 Jani Nikula <jani.nikula@intel.com>:
> > [Dropped lkml, added intel-gfx]
> >
> > Hi Yuly, here's a slightly modified version of your patch, rebased on
> > drm-intel-next-queued. I kept your authorship, but any new errors are
> > totally mine...
> >
> > These are compile tested only; I'd appreciate if you could check it
> > still does what it says on the box!
>
> I have nothing to add or remove. Tested on HSW eDP, used "xrandr" to
> alternate the property values. Works fine.
>
> Being consistent on the default value between LVDS and eDP is
> certainly a nice thing.
>
> For the 3 patches:
> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
> Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
>
> >
> > BR,
> > Jani.
> >
> >
> > Jani Nikula (1):
> >   drm/i915/lvds: move fitting mode from intel_lvds_connector to
> >     intel_panel
> >
> > Yuly Novikov (2):
> >   drm/i915/dp: allow configuring eDP panel fitting scaling mode
> >   drm/i915/dp: change eDP default scaling mode to respect aspect ratio
> >
> >  drivers/gpu/drm/i915/intel_dp.c   |   31 ++++++++++++++++++++++++++++++-
> >  drivers/gpu/drm/i915/intel_drv.h  |    1 +
> >  drivers/gpu/drm/i915/intel_lvds.c |   24 ++++++++++--------------
> >  3 files changed, 41 insertions(+), 15 deletions(-)
> >
> > --
> > 1.7.9.5
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
>
>
> --
> Paulo Zanoni
>

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