diff mbox series

[v2,2/3] drm/i915: Fix pipe config mismatch for bpp, output format

Message ID 1556612275-16608-2-git-send-email-vandita.kulkarni@intel.com (mailing list archive)
State New, archived
Headers show
Series [v2,1/3] drm/i915: Fix the pipe state timing mismatch warnings | expand

Commit Message

Kulkarni, Vandita April 30, 2019, 8:17 a.m. UTC
Read back the pixel fomrat register and get the bpp.

v2: Read the PIPE_MISC register (Jani).

Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
---
 drivers/gpu/drm/i915/icl_dsi.c   | 3 +++
 drivers/gpu/drm/i915/intel_dsi.h | 1 +
 drivers/gpu/drm/i915/vlv_dsi.c   | 2 +-
 3 files changed, 5 insertions(+), 1 deletion(-)

Comments

Jani Nikula April 30, 2019, 9:33 a.m. UTC | #1
On Tue, 30 Apr 2019, Vandita Kulkarni <vandita.kulkarni@intel.com> wrote:
> Read back the pixel fomrat register and get the bpp.
>
> v2: Read the PIPE_MISC register (Jani).
>
> Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
> ---
>  drivers/gpu/drm/i915/icl_dsi.c   | 3 +++
>  drivers/gpu/drm/i915/intel_dsi.h | 1 +
>  drivers/gpu/drm/i915/vlv_dsi.c   | 2 +-
>  3 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c
> index dbb2712..5cc58b2 100644
> --- a/drivers/gpu/drm/i915/icl_dsi.c
> +++ b/drivers/gpu/drm/i915/icl_dsi.c
> @@ -1226,6 +1226,7 @@ static void gen11_dsi_get_config(struct intel_encoder *encoder,
>  {
>  	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>  	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
> +	struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
>  
>  	/* FIXME: adapt icl_ddi_clock_get() for DSI and use that? */
>  	pipe_config->port_clock =
> @@ -1233,6 +1234,7 @@ static void gen11_dsi_get_config(struct intel_encoder *encoder,
>  	pipe_config->base.adjusted_mode.crtc_clock = intel_dsi->pclk;
>  	gen11_dsi_get_timings(encoder, pipe_config);
>  	pipe_config->output_types |= BIT(INTEL_OUTPUT_DSI);
> +	pipe_config->pipe_bpp = bdw_get_pipemisc_bpp(crtc);
>  }
>  
>  static int gen11_dsi_compute_config(struct intel_encoder *encoder,
> @@ -1248,6 +1250,7 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder,
>  	struct drm_display_mode *adjusted_mode =
>  					&pipe_config->base.adjusted_mode;
>  
> +	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
>  	intel_fixed_panel_mode(fixed_mode, adjusted_mode);
>  	intel_pch_panel_fitting(crtc, pipe_config, conn_state->scaling_mode);
>  
> diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
> index 705a609..cb9e3b9 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.h
> +++ b/drivers/gpu/drm/i915/intel_dsi.h
> @@ -166,6 +166,7 @@ enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector,
>  struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi,
>  					   const struct mipi_dsi_host_ops *funcs,
>  					   enum port port);
> +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc);

Until now this was internal to vlv_dsi.c and it was fine. Now, I think
I'd move this to intel_display.c alongside haswell_set_pipemisc.

Ville already has patches to rename haswell_set_pipemisc to
bdw_set_pipemisc.

BR,
Jani.


>  
>  /* vlv_dsi_pll.c */
>  int vlv_dsi_pll_compute(struct intel_encoder *encoder,
> diff --git a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
> index b4c6583..790ada8 100644
> --- a/drivers/gpu/drm/i915/vlv_dsi.c
> +++ b/drivers/gpu/drm/i915/vlv_dsi.c
> @@ -260,7 +260,7 @@ static void band_gap_reset(struct drm_i915_private *dev_priv)
>  	vlv_flisdsi_put(dev_priv);
>  }
>  
> -static int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
> +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
>  	u32 tmp;
Kulkarni, Vandita April 30, 2019, 12:39 p.m. UTC | #2
> -----Original Message-----
> From: Nikula, Jani
> Sent: Tuesday, April 30, 2019 3:03 PM
> To: Kulkarni, Vandita <vandita.kulkarni@intel.com>; intel-
> gfx@lists.freedesktop.org
> Cc: Syrjala, Ville <ville.syrjala@intel.com>; Shankar, Uma
> <uma.shankar@intel.com>; Kulkarni, Vandita <vandita.kulkarni@intel.com>
> Subject: Re: [v2 2/3] drm/i915: Fix pipe config mismatch for bpp, output format
> 
> On Tue, 30 Apr 2019, Vandita Kulkarni <vandita.kulkarni@intel.com> wrote:
> > Read back the pixel fomrat register and get the bpp.
> >
> > v2: Read the PIPE_MISC register (Jani).
> >
> > Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
> > ---
> >  drivers/gpu/drm/i915/icl_dsi.c   | 3 +++
> >  drivers/gpu/drm/i915/intel_dsi.h | 1 +
> >  drivers/gpu/drm/i915/vlv_dsi.c   | 2 +-
> >  3 files changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/i915/icl_dsi.c
> > b/drivers/gpu/drm/i915/icl_dsi.c index dbb2712..5cc58b2 100644
> > --- a/drivers/gpu/drm/i915/icl_dsi.c
> > +++ b/drivers/gpu/drm/i915/icl_dsi.c
> > @@ -1226,6 +1226,7 @@ static void gen11_dsi_get_config(struct
> > intel_encoder *encoder,  {
> >  	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> >  	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
> > +	struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
> >
> >  	/* FIXME: adapt icl_ddi_clock_get() for DSI and use that? */
> >  	pipe_config->port_clock =
> > @@ -1233,6 +1234,7 @@ static void gen11_dsi_get_config(struct
> intel_encoder *encoder,
> >  	pipe_config->base.adjusted_mode.crtc_clock = intel_dsi->pclk;
> >  	gen11_dsi_get_timings(encoder, pipe_config);
> >  	pipe_config->output_types |= BIT(INTEL_OUTPUT_DSI);
> > +	pipe_config->pipe_bpp = bdw_get_pipemisc_bpp(crtc);
> >  }
> >
> >  static int gen11_dsi_compute_config(struct intel_encoder *encoder, @@
> > -1248,6 +1250,7 @@ static int gen11_dsi_compute_config(struct
> intel_encoder *encoder,
> >  	struct drm_display_mode *adjusted_mode =
> >  					&pipe_config->base.adjusted_mode;
> >
> > +	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
> >  	intel_fixed_panel_mode(fixed_mode, adjusted_mode);
> >  	intel_pch_panel_fitting(crtc, pipe_config,
> > conn_state->scaling_mode);
> >
> > diff --git a/drivers/gpu/drm/i915/intel_dsi.h
> > b/drivers/gpu/drm/i915/intel_dsi.h
> > index 705a609..cb9e3b9 100644
> > --- a/drivers/gpu/drm/i915/intel_dsi.h
> > +++ b/drivers/gpu/drm/i915/intel_dsi.h
> > @@ -166,6 +166,7 @@ enum drm_mode_status intel_dsi_mode_valid(struct
> > drm_connector *connector,  struct intel_dsi_host *intel_dsi_host_init(struct
> intel_dsi *intel_dsi,
> >  					   const struct mipi_dsi_host_ops
> *funcs,
> >  					   enum port port);
> > +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc);
> 
> Until now this was internal to vlv_dsi.c and it was fine. Now, I think I'd move this
> to intel_display.c alongside haswell_set_pipemisc.
Ok, so I ll move thjs to intel_display.c and call it from haswell_get_pipe_config for is_dsi and gen >= 9
Thanks,
Vandita
> 
> Ville already has patches to rename haswell_set_pipemisc to bdw_set_pipemisc.
> 
> BR,
> Jani.
> 
> 
> >
> >  /* vlv_dsi_pll.c */
> >  int vlv_dsi_pll_compute(struct intel_encoder *encoder, diff --git
> > a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
> > index b4c6583..790ada8 100644
> > --- a/drivers/gpu/drm/i915/vlv_dsi.c
> > +++ b/drivers/gpu/drm/i915/vlv_dsi.c
> > @@ -260,7 +260,7 @@ static void band_gap_reset(struct drm_i915_private
> *dev_priv)
> >  	vlv_flisdsi_put(dev_priv);
> >  }
> >
> > -static int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
> > +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
> >  {
> >  	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> >  	u32 tmp;
> 
> --
> Jani Nikula, Intel Open Source Graphics Center
Jani Nikula April 30, 2019, 12:46 p.m. UTC | #3
On Tue, 30 Apr 2019, "Kulkarni, Vandita" <vandita.kulkarni@intel.com> wrote:
>> -----Original Message-----
>> From: Nikula, Jani
>> Sent: Tuesday, April 30, 2019 3:03 PM
>> To: Kulkarni, Vandita <vandita.kulkarni@intel.com>; intel-
>> gfx@lists.freedesktop.org
>> Cc: Syrjala, Ville <ville.syrjala@intel.com>; Shankar, Uma
>> <uma.shankar@intel.com>; Kulkarni, Vandita <vandita.kulkarni@intel.com>
>> Subject: Re: [v2 2/3] drm/i915: Fix pipe config mismatch for bpp, output format
>> 
>> On Tue, 30 Apr 2019, Vandita Kulkarni <vandita.kulkarni@intel.com> wrote:
>> > Read back the pixel fomrat register and get the bpp.
>> >
>> > v2: Read the PIPE_MISC register (Jani).
>> >
>> > Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
>> > ---
>> >  drivers/gpu/drm/i915/icl_dsi.c   | 3 +++
>> >  drivers/gpu/drm/i915/intel_dsi.h | 1 +
>> >  drivers/gpu/drm/i915/vlv_dsi.c   | 2 +-
>> >  3 files changed, 5 insertions(+), 1 deletion(-)
>> >
>> > diff --git a/drivers/gpu/drm/i915/icl_dsi.c
>> > b/drivers/gpu/drm/i915/icl_dsi.c index dbb2712..5cc58b2 100644
>> > --- a/drivers/gpu/drm/i915/icl_dsi.c
>> > +++ b/drivers/gpu/drm/i915/icl_dsi.c
>> > @@ -1226,6 +1226,7 @@ static void gen11_dsi_get_config(struct
>> > intel_encoder *encoder,  {
>> >  	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>> >  	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
>> > +	struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
>> >
>> >  	/* FIXME: adapt icl_ddi_clock_get() for DSI and use that? */
>> >  	pipe_config->port_clock =
>> > @@ -1233,6 +1234,7 @@ static void gen11_dsi_get_config(struct
>> intel_encoder *encoder,
>> >  	pipe_config->base.adjusted_mode.crtc_clock = intel_dsi->pclk;
>> >  	gen11_dsi_get_timings(encoder, pipe_config);
>> >  	pipe_config->output_types |= BIT(INTEL_OUTPUT_DSI);
>> > +	pipe_config->pipe_bpp = bdw_get_pipemisc_bpp(crtc);
>> >  }
>> >
>> >  static int gen11_dsi_compute_config(struct intel_encoder *encoder, @@
>> > -1248,6 +1250,7 @@ static int gen11_dsi_compute_config(struct
>> intel_encoder *encoder,
>> >  	struct drm_display_mode *adjusted_mode =
>> >  					&pipe_config->base.adjusted_mode;
>> >
>> > +	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
>> >  	intel_fixed_panel_mode(fixed_mode, adjusted_mode);
>> >  	intel_pch_panel_fitting(crtc, pipe_config,
>> > conn_state->scaling_mode);
>> >
>> > diff --git a/drivers/gpu/drm/i915/intel_dsi.h
>> > b/drivers/gpu/drm/i915/intel_dsi.h
>> > index 705a609..cb9e3b9 100644
>> > --- a/drivers/gpu/drm/i915/intel_dsi.h
>> > +++ b/drivers/gpu/drm/i915/intel_dsi.h
>> > @@ -166,6 +166,7 @@ enum drm_mode_status intel_dsi_mode_valid(struct
>> > drm_connector *connector,  struct intel_dsi_host *intel_dsi_host_init(struct
>> intel_dsi *intel_dsi,
>> >  					   const struct mipi_dsi_host_ops
>> *funcs,
>> >  					   enum port port);
>> > +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc);
>> 
>> Until now this was internal to vlv_dsi.c and it was fine. Now, I think I'd move this
>> to intel_display.c alongside haswell_set_pipemisc.
> Ok, so I ll move thjs to intel_display.c and call it from haswell_get_pipe_config for is_dsi and gen >= 9

I'd actually prefer to call it from dsi encoder code instead.

BR,
Jani.

> Thanks,
> Vandita
>> 
>> Ville already has patches to rename haswell_set_pipemisc to bdw_set_pipemisc.
>> 
>> BR,
>> Jani.
>> 
>> 
>> >
>> >  /* vlv_dsi_pll.c */
>> >  int vlv_dsi_pll_compute(struct intel_encoder *encoder, diff --git
>> > a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
>> > index b4c6583..790ada8 100644
>> > --- a/drivers/gpu/drm/i915/vlv_dsi.c
>> > +++ b/drivers/gpu/drm/i915/vlv_dsi.c
>> > @@ -260,7 +260,7 @@ static void band_gap_reset(struct drm_i915_private
>> *dev_priv)
>> >  	vlv_flisdsi_put(dev_priv);
>> >  }
>> >
>> > -static int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
>> > +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
>> >  {
>> >  	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
>> >  	u32 tmp;
>> 
>> --
>> Jani Nikula, Intel Open Source Graphics Center
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Kulkarni, Vandita April 30, 2019, 12:59 p.m. UTC | #4
> -----Original Message-----
> From: Nikula, Jani
> Sent: Tuesday, April 30, 2019 6:16 PM
> To: Kulkarni, Vandita <vandita.kulkarni@intel.com>; intel-
> gfx@lists.freedesktop.org
> Cc: Syrjala, Ville <ville.syrjala@intel.com>
> Subject: Re: [Intel-gfx] [v2 2/3] drm/i915: Fix pipe config mismatch for bpp,
> output format
> 
> On Tue, 30 Apr 2019, "Kulkarni, Vandita" <vandita.kulkarni@intel.com> wrote:
> >> -----Original Message-----
> >> From: Nikula, Jani
> >> Sent: Tuesday, April 30, 2019 3:03 PM
> >> To: Kulkarni, Vandita <vandita.kulkarni@intel.com>; intel-
> >> gfx@lists.freedesktop.org
> >> Cc: Syrjala, Ville <ville.syrjala@intel.com>; Shankar, Uma
> >> <uma.shankar@intel.com>; Kulkarni, Vandita
> >> <vandita.kulkarni@intel.com>
> >> Subject: Re: [v2 2/3] drm/i915: Fix pipe config mismatch for bpp,
> >> output format
> >>
> >> On Tue, 30 Apr 2019, Vandita Kulkarni <vandita.kulkarni@intel.com> wrote:
> >> > Read back the pixel fomrat register and get the bpp.
> >> >
> >> > v2: Read the PIPE_MISC register (Jani).
> >> >
> >> > Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
> >> > ---
> >> >  drivers/gpu/drm/i915/icl_dsi.c   | 3 +++
> >> >  drivers/gpu/drm/i915/intel_dsi.h | 1 +
> >> >  drivers/gpu/drm/i915/vlv_dsi.c   | 2 +-
> >> >  3 files changed, 5 insertions(+), 1 deletion(-)
> >> >
> >> > diff --git a/drivers/gpu/drm/i915/icl_dsi.c
> >> > b/drivers/gpu/drm/i915/icl_dsi.c index dbb2712..5cc58b2 100644
> >> > --- a/drivers/gpu/drm/i915/icl_dsi.c
> >> > +++ b/drivers/gpu/drm/i915/icl_dsi.c
> >> > @@ -1226,6 +1226,7 @@ static void gen11_dsi_get_config(struct
> >> > intel_encoder *encoder,  {
> >> >  	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> >> >  	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
> >> > +	struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
> >> >
> >> >  	/* FIXME: adapt icl_ddi_clock_get() for DSI and use that? */
> >> >  	pipe_config->port_clock =
> >> > @@ -1233,6 +1234,7 @@ static void gen11_dsi_get_config(struct
> >> intel_encoder *encoder,
> >> >  	pipe_config->base.adjusted_mode.crtc_clock = intel_dsi->pclk;
> >> >  	gen11_dsi_get_timings(encoder, pipe_config);
> >> >  	pipe_config->output_types |= BIT(INTEL_OUTPUT_DSI);
> >> > +	pipe_config->pipe_bpp = bdw_get_pipemisc_bpp(crtc);
> >> >  }
> >> >
> >> >  static int gen11_dsi_compute_config(struct intel_encoder *encoder,
> >> > @@
> >> > -1248,6 +1250,7 @@ static int gen11_dsi_compute_config(struct
> >> intel_encoder *encoder,
> >> >  	struct drm_display_mode *adjusted_mode =
> >> >  					&pipe_config->base.adjusted_mode;
> >> >
> >> > +	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
> >> >  	intel_fixed_panel_mode(fixed_mode, adjusted_mode);
> >> >  	intel_pch_panel_fitting(crtc, pipe_config,
> >> > conn_state->scaling_mode);
> >> >
> >> > diff --git a/drivers/gpu/drm/i915/intel_dsi.h
> >> > b/drivers/gpu/drm/i915/intel_dsi.h
> >> > index 705a609..cb9e3b9 100644
> >> > --- a/drivers/gpu/drm/i915/intel_dsi.h
> >> > +++ b/drivers/gpu/drm/i915/intel_dsi.h
> >> > @@ -166,6 +166,7 @@ enum drm_mode_status
> >> > intel_dsi_mode_valid(struct drm_connector *connector,  struct
> >> > intel_dsi_host *intel_dsi_host_init(struct
> >> intel_dsi *intel_dsi,
> >> >  					   const struct mipi_dsi_host_ops
> >> *funcs,
> >> >  					   enum port port);
> >> > +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc);
> >>
> >> Until now this was internal to vlv_dsi.c and it was fine. Now, I
> >> think I'd move this to intel_display.c alongside haswell_set_pipemisc.
> > Ok, so I ll move thjs to intel_display.c and call it from
> > haswell_get_pipe_config for is_dsi and gen >= 9
> 
> I'd actually prefer to call it from dsi encoder code instead.
Ok. Will do that.

Thanks,
Vandita

> 
> BR,
> Jani.
> 
> > Thanks,
> > Vandita
> >>
> >> Ville already has patches to rename haswell_set_pipemisc to
> bdw_set_pipemisc.
> >>
> >> BR,
> >> Jani.
> >>
> >>
> >> >
> >> >  /* vlv_dsi_pll.c */
> >> >  int vlv_dsi_pll_compute(struct intel_encoder *encoder, diff --git
> >> > a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
> >> > index b4c6583..790ada8 100644
> >> > --- a/drivers/gpu/drm/i915/vlv_dsi.c
> >> > +++ b/drivers/gpu/drm/i915/vlv_dsi.c
> >> > @@ -260,7 +260,7 @@ static void band_gap_reset(struct
> >> > drm_i915_private
> >> *dev_priv)
> >> >  	vlv_flisdsi_put(dev_priv);
> >> >  }
> >> >
> >> > -static int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
> >> > +int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
> >> >  {
> >> >  	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> >> >  	u32 tmp;
> >>
> >> --
> >> Jani Nikula, Intel Open Source Graphics Center
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> --
> Jani Nikula, Intel Open Source Graphics Center
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/icl_dsi.c b/drivers/gpu/drm/i915/icl_dsi.c
index dbb2712..5cc58b2 100644
--- a/drivers/gpu/drm/i915/icl_dsi.c
+++ b/drivers/gpu/drm/i915/icl_dsi.c
@@ -1226,6 +1226,7 @@  static void gen11_dsi_get_config(struct intel_encoder *encoder,
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
+	struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
 
 	/* FIXME: adapt icl_ddi_clock_get() for DSI and use that? */
 	pipe_config->port_clock =
@@ -1233,6 +1234,7 @@  static void gen11_dsi_get_config(struct intel_encoder *encoder,
 	pipe_config->base.adjusted_mode.crtc_clock = intel_dsi->pclk;
 	gen11_dsi_get_timings(encoder, pipe_config);
 	pipe_config->output_types |= BIT(INTEL_OUTPUT_DSI);
+	pipe_config->pipe_bpp = bdw_get_pipemisc_bpp(crtc);
 }
 
 static int gen11_dsi_compute_config(struct intel_encoder *encoder,
@@ -1248,6 +1250,7 @@  static int gen11_dsi_compute_config(struct intel_encoder *encoder,
 	struct drm_display_mode *adjusted_mode =
 					&pipe_config->base.adjusted_mode;
 
+	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
 	intel_fixed_panel_mode(fixed_mode, adjusted_mode);
 	intel_pch_panel_fitting(crtc, pipe_config, conn_state->scaling_mode);
 
diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
index 705a609..cb9e3b9 100644
--- a/drivers/gpu/drm/i915/intel_dsi.h
+++ b/drivers/gpu/drm/i915/intel_dsi.h
@@ -166,6 +166,7 @@  enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector,
 struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi,
 					   const struct mipi_dsi_host_ops *funcs,
 					   enum port port);
+int bdw_get_pipemisc_bpp(struct intel_crtc *crtc);
 
 /* vlv_dsi_pll.c */
 int vlv_dsi_pll_compute(struct intel_encoder *encoder,
diff --git a/drivers/gpu/drm/i915/vlv_dsi.c b/drivers/gpu/drm/i915/vlv_dsi.c
index b4c6583..790ada8 100644
--- a/drivers/gpu/drm/i915/vlv_dsi.c
+++ b/drivers/gpu/drm/i915/vlv_dsi.c
@@ -260,7 +260,7 @@  static void band_gap_reset(struct drm_i915_private *dev_priv)
 	vlv_flisdsi_put(dev_priv);
 }
 
-static int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
+int bdw_get_pipemisc_bpp(struct intel_crtc *crtc)
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 	u32 tmp;