diff mbox

[v3,07/24] drm/i2c: tda998x: set the video mode from the adjusted value

Message ID 20140119195840.1ecab03b@armhf (mailing list archive)
State New, archived
Headers show

Commit Message

Jean-Francois Moine Jan. 19, 2014, 6:58 p.m. UTC
This patch uses always the adjusted video mode instead of a mix of
original and adjusted mode.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
---
 drivers/gpu/drm/i2c/tda998x_drv.c | 66 +++++++++++++++++++--------------------
 1 file changed, 33 insertions(+), 33 deletions(-)

Comments

Russell King - ARM Linux Jan. 22, 2014, 9:28 p.m. UTC | #1
On Sun, Jan 19, 2014 at 07:58:40PM +0100, Jean-Francois Moine wrote:
> This patch uses always the adjusted video mode instead of a mix of
> original and adjusted mode.
> 
> Signed-off-by: Jean-Francois Moine <moinejf@free.fr>

Nothing obviously wrong and appears to work, thanks.

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Etheridge, Darren Jan. 23, 2014, 11:29 p.m. UTC | #2
Jean-Francois Moine <moinejf@free.fr> wrote on Sun [2014-Jan-19 19:58:40 +0100]:
> This patch uses always the adjusted video mode instead of a mix of
> original and adjusted mode.
> 
> Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
> ---
>  drivers/gpu/drm/i2c/tda998x_drv.c | 66 +++++++++++++++++++--------------------
>  1 file changed, 33 insertions(+), 33 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
> index b688801..5d82301 100644
> --- a/drivers/gpu/drm/i2c/tda998x_drv.c
> +++ b/drivers/gpu/drm/i2c/tda998x_drv.c
> @@ -773,7 +773,7 @@ tda998x_encoder_mode_valid(struct drm_encoder *encoder,
>  static void
>  tda998x_encoder_mode_set(struct drm_encoder *encoder,
>  			struct drm_display_mode *mode,
> -			struct drm_display_mode *adjusted_mode)
> +			struct drm_display_mode *adj_mode)
>  {
>  	struct tda998x_priv *priv = to_tda998x_priv(encoder);
>  	uint16_t ref_pix, ref_line, n_pix, n_line;
> @@ -802,13 +802,13 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
>  	 * So we add +1 to all horizontal and vertical register values,
>  	 * plus an additional +3 for REFPIX as we are using RGB input only.
>  	 */
> -	n_pix        = mode->htotal;
> -	n_line       = mode->vtotal;
> +	n_pix        = adj_mode->htotal;
> +	n_line       = adj_mode->vtotal;
>  
> -	hs_pix_e     = mode->hsync_end - mode->hdisplay;
> -	hs_pix_s     = mode->hsync_start - mode->hdisplay;
> -	de_pix_e     = mode->htotal;
> -	de_pix_s     = mode->htotal - mode->hdisplay;
> +	hs_pix_e     = adj_mode->hsync_end - adj_mode->hdisplay;
> +	hs_pix_s     = adj_mode->hsync_start - adj_mode->hdisplay;
> +	de_pix_e     = adj_mode->htotal;
> +	de_pix_s     = adj_mode->htotal - adj_mode->hdisplay;
>  	ref_pix      = 3 + hs_pix_s;
>  
>  	/*
> @@ -816,37 +816,38 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
>  	 * those to adjust the position of the rising VS edge by adding
>  	 * HSKEW to ref_pix.
>  	 */
> -	if (adjusted_mode->flags & DRM_MODE_FLAG_HSKEW)
> -		ref_pix += adjusted_mode->hskew;
> +	if (adj_mode->flags & DRM_MODE_FLAG_HSKEW)
> +		ref_pix += adj_mode->hskew;
>  
> -	if ((mode->flags & DRM_MODE_FLAG_INTERLACE) == 0) {
> -		ref_line     = 1 + mode->vsync_start - mode->vdisplay;
> -		vwin1_line_s = mode->vtotal - mode->vdisplay - 1;
> -		vwin1_line_e = vwin1_line_s + mode->vdisplay;
> +	if ((adj_mode->flags & DRM_MODE_FLAG_INTERLACE) == 0) {
> +		ref_line     = 1 + adj_mode->vsync_start - adj_mode->vdisplay;
> +		vwin1_line_s = adj_mode->vtotal - adj_mode->vdisplay - 1;
> +		vwin1_line_e = vwin1_line_s + adj_mode->vdisplay;
>  		vs1_pix_s    = vs1_pix_e = hs_pix_s;
> -		vs1_line_s   = mode->vsync_start - mode->vdisplay;
> +		vs1_line_s   = adj_mode->vsync_start - adj_mode->vdisplay;
>  		vs1_line_e   = vs1_line_s +
> -			       mode->vsync_end - mode->vsync_start;
> +			       adj_mode->vsync_end - adj_mode->vsync_start;
>  		vwin2_line_s = vwin2_line_e = 0;
>  		vs2_pix_s    = vs2_pix_e  = 0;
>  		vs2_line_s   = vs2_line_e = 0;
>  	} else {
> -		ref_line     = 1 + (mode->vsync_start - mode->vdisplay)/2;
> -		vwin1_line_s = (mode->vtotal - mode->vdisplay)/2;
> -		vwin1_line_e = vwin1_line_s + mode->vdisplay/2;
> +		ref_line     = 1 + (adj_mode->vsync_start -
> +						adj_mode->vdisplay)/2;
> +		vwin1_line_s = (adj_mode->vtotal - adj_mode->vdisplay)/2;
> +		vwin1_line_e = vwin1_line_s + adj_mode->vdisplay/2;
>  		vs1_pix_s    = vs1_pix_e = hs_pix_s;
> -		vs1_line_s   = (mode->vsync_start - mode->vdisplay)/2;
> +		vs1_line_s   = (adj_mode->vsync_start - adj_mode->vdisplay)/2;
>  		vs1_line_e   = vs1_line_s +
> -			       (mode->vsync_end - mode->vsync_start)/2;
> -		vwin2_line_s = vwin1_line_s + mode->vtotal/2;
> -		vwin2_line_e = vwin2_line_s + mode->vdisplay/2;
> -		vs2_pix_s    = vs2_pix_e = hs_pix_s + mode->htotal/2;
> -		vs2_line_s   = vs1_line_s + mode->vtotal/2 ;
> +			       (adj_mode->vsync_end - adj_mode->vsync_start)/2;
> +		vwin2_line_s = vwin1_line_s + adj_mode->vtotal/2;
> +		vwin2_line_e = vwin2_line_s + adj_mode->vdisplay/2;
> +		vs2_pix_s    = vs2_pix_e = hs_pix_s + adj_mode->htotal/2;
> +		vs2_line_s   = vs1_line_s + adj_mode->vtotal/2 ;
>  		vs2_line_e   = vs2_line_s +
> -			       (mode->vsync_end - mode->vsync_start)/2;
> +			       (adj_mode->vsync_end - adj_mode->vsync_start)/2;
>  	}
>  
> -	div = 148500 / mode->clock;
> +	div = 148500 / adj_mode->clock;
>  
>  	/* mute the audio FIFO: */
>  	reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
> @@ -896,9 +897,9 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
>  	 * TDA19988 requires high-active sync at input stage,
>  	 * so invert low-active sync provided by master encoder here
>  	 */
> -	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
> +	if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
>  		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_H_TGL);
> -	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
> +	if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
>  		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_V_TGL);
>  

Using the adj_mode->flags breaks a workaround I had done on BeagleBone Black
(tilcdc + tda998x) to resolve an issue with out of spec syncs from the
tlcdc.  I invert the HSYNC in adj_mode->flags but don't want the tda998x to
really know that I am doing that so I use adj_mode in the tilcdc driver, and
mode here in the tda998x driver.  The theory being adj_mode contains whatever
workarounds I need to do for the driving device and mode has the pristine
values that I want to send to the monitor.  I would need to look if there is a
different way to solve this as I am guessing you are actually using adj_mode in
the manner it was intended.

Otherwise this patch series is working on BeagleBone Black - I have only tried
video so far (not audio).

Darren

>  	/*
> @@ -906,9 +907,9 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
>  	 * revert input stage toggled sync at output stage
>  	 */
>  	reg = TBG_CNTRL_1_TGL_EN;
> -	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
> +	if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
>  		reg |= TBG_CNTRL_1_H_TGL;
> -	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
> +	if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
>  		reg |= TBG_CNTRL_1_V_TGL;
>  	reg_write(priv, REG_TBG_CNTRL_1, reg);
>  
> @@ -949,11 +950,10 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
>  		reg_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
>  		reg_set(priv, REG_TX33, TX33_HDMI);
>  
> -		tda998x_write_avi(priv, adjusted_mode);
> +		tda998x_write_avi(priv, adj_mode);
>  
>  		if (priv->params.audio_cfg)
> -			tda998x_configure_audio(priv, adjusted_mode,
> -						&priv->params);
> +			tda998x_configure_audio(priv, adj_mode, &priv->params);
>  	}
>  }
>  
> -- 
> 1.8.5.3
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
Jean-Francois Moine Jan. 28, 2014, 5:12 p.m. UTC | #3
On Thu, 23 Jan 2014 17:29:07 -0600
Darren Etheridge <detheridge@ti.com> wrote:

> > @@ -896,9 +897,9 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
> >  	 * TDA19988 requires high-active sync at input stage,
> >  	 * so invert low-active sync provided by master encoder here
> >  	 */
> > -	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
> > +	if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
> >  		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_H_TGL);
> > -	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
> > +	if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
> >  		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_V_TGL);
> >    
> 
> Using the adj_mode->flags breaks a workaround I had done on BeagleBone Black
> (tilcdc + tda998x) to resolve an issue with out of spec syncs from the
> tlcdc.  I invert the HSYNC in adj_mode->flags but don't want the tda998x to
> really know that I am doing that so I use adj_mode in the tilcdc driver, and
> mode here in the tda998x driver.  The theory being adj_mode contains whatever
> workarounds I need to do for the driving device and mode has the pristine
> values that I want to send to the monitor.  I would need to look if there is a
> different way to solve this as I am guessing you are actually using adj_mode in
> the manner it was intended.

No. In fact, I just wanted the function to use only one mode.

Looking at the other drivers, it seems that they don't touch the
adjusted_mode, so, for the Cubox, mode and adjusted_mode have same
values.

I will do an other patch so that you will not have to touch the tilcdc
driver.
Etheridge, Darren Jan. 28, 2014, 7:24 p.m. UTC | #4
Jean-Francois Moine <moinejf@free.fr> wrote on Tue [2014-Jan-28 18:12:18 +0100]:
> On Thu, 23 Jan 2014 17:29:07 -0600
> Darren Etheridge <detheridge@ti.com> wrote:
> 
> > > @@ -896,9 +897,9 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
> > >  	 * TDA19988 requires high-active sync at input stage,
> > >  	 * so invert low-active sync provided by master encoder here
> > >  	 */
> > > -	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
> > > +	if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
> > >  		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_H_TGL);
> > > -	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
> > > +	if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
> > >  		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_V_TGL);
> > >    
> > 
> > Using the adj_mode->flags breaks a workaround I had done on BeagleBone Black
> > (tilcdc + tda998x) to resolve an issue with out of spec syncs from the
> > tlcdc.  I invert the HSYNC in adj_mode->flags but don't want the tda998x to
> > really know that I am doing that so I use adj_mode in the tilcdc driver, and
> > mode here in the tda998x driver.  The theory being adj_mode contains whatever
> > workarounds I need to do for the driving device and mode has the pristine
> > values that I want to send to the monitor.  I would need to look if there is a
> > different way to solve this as I am guessing you are actually using adj_mode in
> > the manner it was intended.
> 
> No. In fact, I just wanted the function to use only one mode.
> 
> Looking at the other drivers, it seems that they don't touch the
> adjusted_mode, so, for the Cubox, mode and adjusted_mode have same
> values.
> 
> I will do an other patch so that you will not have to touch the tilcdc
> driver.
> 
Thanks, that would certainly be the easiest path to avoid the regression given
the other drivers that use tda998x don't currently use adj_mode.  However I
don't disagree with your reasoning, it would make sense to only use values
from one of the strctures and not a mix and match.  Anybody looking at only
the tda998x driver would be confused :) I'll work on finding a different
solution for this.

> -- 
> Ken ar c'hentaƱ	|	      ** Breizh ha Linux atav! **
> Jef		|		http://moinejf.free.fr/
diff mbox

Patch

diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index b688801..5d82301 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -773,7 +773,7 @@  tda998x_encoder_mode_valid(struct drm_encoder *encoder,
 static void
 tda998x_encoder_mode_set(struct drm_encoder *encoder,
 			struct drm_display_mode *mode,
-			struct drm_display_mode *adjusted_mode)
+			struct drm_display_mode *adj_mode)
 {
 	struct tda998x_priv *priv = to_tda998x_priv(encoder);
 	uint16_t ref_pix, ref_line, n_pix, n_line;
@@ -802,13 +802,13 @@  tda998x_encoder_mode_set(struct drm_encoder *encoder,
 	 * So we add +1 to all horizontal and vertical register values,
 	 * plus an additional +3 for REFPIX as we are using RGB input only.
 	 */
-	n_pix        = mode->htotal;
-	n_line       = mode->vtotal;
+	n_pix        = adj_mode->htotal;
+	n_line       = adj_mode->vtotal;
 
-	hs_pix_e     = mode->hsync_end - mode->hdisplay;
-	hs_pix_s     = mode->hsync_start - mode->hdisplay;
-	de_pix_e     = mode->htotal;
-	de_pix_s     = mode->htotal - mode->hdisplay;
+	hs_pix_e     = adj_mode->hsync_end - adj_mode->hdisplay;
+	hs_pix_s     = adj_mode->hsync_start - adj_mode->hdisplay;
+	de_pix_e     = adj_mode->htotal;
+	de_pix_s     = adj_mode->htotal - adj_mode->hdisplay;
 	ref_pix      = 3 + hs_pix_s;
 
 	/*
@@ -816,37 +816,38 @@  tda998x_encoder_mode_set(struct drm_encoder *encoder,
 	 * those to adjust the position of the rising VS edge by adding
 	 * HSKEW to ref_pix.
 	 */
-	if (adjusted_mode->flags & DRM_MODE_FLAG_HSKEW)
-		ref_pix += adjusted_mode->hskew;
+	if (adj_mode->flags & DRM_MODE_FLAG_HSKEW)
+		ref_pix += adj_mode->hskew;
 
-	if ((mode->flags & DRM_MODE_FLAG_INTERLACE) == 0) {
-		ref_line     = 1 + mode->vsync_start - mode->vdisplay;
-		vwin1_line_s = mode->vtotal - mode->vdisplay - 1;
-		vwin1_line_e = vwin1_line_s + mode->vdisplay;
+	if ((adj_mode->flags & DRM_MODE_FLAG_INTERLACE) == 0) {
+		ref_line     = 1 + adj_mode->vsync_start - adj_mode->vdisplay;
+		vwin1_line_s = adj_mode->vtotal - adj_mode->vdisplay - 1;
+		vwin1_line_e = vwin1_line_s + adj_mode->vdisplay;
 		vs1_pix_s    = vs1_pix_e = hs_pix_s;
-		vs1_line_s   = mode->vsync_start - mode->vdisplay;
+		vs1_line_s   = adj_mode->vsync_start - adj_mode->vdisplay;
 		vs1_line_e   = vs1_line_s +
-			       mode->vsync_end - mode->vsync_start;
+			       adj_mode->vsync_end - adj_mode->vsync_start;
 		vwin2_line_s = vwin2_line_e = 0;
 		vs2_pix_s    = vs2_pix_e  = 0;
 		vs2_line_s   = vs2_line_e = 0;
 	} else {
-		ref_line     = 1 + (mode->vsync_start - mode->vdisplay)/2;
-		vwin1_line_s = (mode->vtotal - mode->vdisplay)/2;
-		vwin1_line_e = vwin1_line_s + mode->vdisplay/2;
+		ref_line     = 1 + (adj_mode->vsync_start -
+						adj_mode->vdisplay)/2;
+		vwin1_line_s = (adj_mode->vtotal - adj_mode->vdisplay)/2;
+		vwin1_line_e = vwin1_line_s + adj_mode->vdisplay/2;
 		vs1_pix_s    = vs1_pix_e = hs_pix_s;
-		vs1_line_s   = (mode->vsync_start - mode->vdisplay)/2;
+		vs1_line_s   = (adj_mode->vsync_start - adj_mode->vdisplay)/2;
 		vs1_line_e   = vs1_line_s +
-			       (mode->vsync_end - mode->vsync_start)/2;
-		vwin2_line_s = vwin1_line_s + mode->vtotal/2;
-		vwin2_line_e = vwin2_line_s + mode->vdisplay/2;
-		vs2_pix_s    = vs2_pix_e = hs_pix_s + mode->htotal/2;
-		vs2_line_s   = vs1_line_s + mode->vtotal/2 ;
+			       (adj_mode->vsync_end - adj_mode->vsync_start)/2;
+		vwin2_line_s = vwin1_line_s + adj_mode->vtotal/2;
+		vwin2_line_e = vwin2_line_s + adj_mode->vdisplay/2;
+		vs2_pix_s    = vs2_pix_e = hs_pix_s + adj_mode->htotal/2;
+		vs2_line_s   = vs1_line_s + adj_mode->vtotal/2 ;
 		vs2_line_e   = vs2_line_s +
-			       (mode->vsync_end - mode->vsync_start)/2;
+			       (adj_mode->vsync_end - adj_mode->vsync_start)/2;
 	}
 
-	div = 148500 / mode->clock;
+	div = 148500 / adj_mode->clock;
 
 	/* mute the audio FIFO: */
 	reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
@@ -896,9 +897,9 @@  tda998x_encoder_mode_set(struct drm_encoder *encoder,
 	 * TDA19988 requires high-active sync at input stage,
 	 * so invert low-active sync provided by master encoder here
 	 */
-	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+	if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
 		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_H_TGL);
-	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+	if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
 		reg_set(priv, REG_VIP_CNTRL_3, VIP_CNTRL_3_V_TGL);
 
 	/*
@@ -906,9 +907,9 @@  tda998x_encoder_mode_set(struct drm_encoder *encoder,
 	 * revert input stage toggled sync at output stage
 	 */
 	reg = TBG_CNTRL_1_TGL_EN;
-	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+	if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
 		reg |= TBG_CNTRL_1_H_TGL;
-	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+	if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
 		reg |= TBG_CNTRL_1_V_TGL;
 	reg_write(priv, REG_TBG_CNTRL_1, reg);
 
@@ -949,11 +950,10 @@  tda998x_encoder_mode_set(struct drm_encoder *encoder,
 		reg_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
 		reg_set(priv, REG_TX33, TX33_HDMI);
 
-		tda998x_write_avi(priv, adjusted_mode);
+		tda998x_write_avi(priv, adj_mode);
 
 		if (priv->params.audio_cfg)
-			tda998x_configure_audio(priv, adjusted_mode,
-						&priv->params);
+			tda998x_configure_audio(priv, adj_mode, &priv->params);
 	}
 }