diff mbox series

[04/17] drm/msm/dp: store mode YUV420 information to be used by rest of DP

Message ID 20240125193834.7065-5-quic_parellan@quicinc.com (mailing list archive)
State New, archived
Headers show
Series Add support for CDM over DP | expand

Commit Message

Paloma Arellano Jan. 25, 2024, 7:38 p.m. UTC 
Wide bus is not supported when the mode is YUV420 in DP. In preparation
for changing the DPU programming to reflect this, the value and
assignment location of wide_bus_en for the DP submodules must be
changed. Move it from boot time in dp_init_sub_modules() to run time in
dp_display_mode_set.

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
---
 drivers/gpu/drm/msm/dp/dp_display.c | 17 +++++++++++++----
 drivers/gpu/drm/msm/dp/dp_panel.h   |  1 +
 2 files changed, 14 insertions(+), 4 deletions(-)

Comments

Dmitry Baryshkov Jan. 25, 2024, 9:20 p.m. UTC | #1 
On 25/01/2024 21:38, Paloma Arellano wrote:
> Wide bus is not supported when the mode is YUV420 in DP. In preparation
> for changing the DPU programming to reflect this, the value and
> assignment location of wide_bus_en for the DP submodules must be
> changed. Move it from boot time in dp_init_sub_modules() to run time in
> dp_display_mode_set.
> 
> Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
> ---
>   drivers/gpu/drm/msm/dp/dp_display.c | 17 +++++++++++++----
>   drivers/gpu/drm/msm/dp/dp_panel.h   |  1 +
>   2 files changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
> index 9df2a8b21021e..ddac55f45a722 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -784,10 +784,6 @@ static int dp_init_sub_modules(struct dp_display_private *dp)
>   		goto error_ctrl;
>   	}
>   
> -	/* populate wide_bus_supported to different layers */
> -	dp->ctrl->wide_bus_en = dp->wide_bus_supported;
> -	dp->catalog->wide_bus_en = dp->wide_bus_supported;
> -
>   	return rc;
>   
>   error_ctrl:
> @@ -808,6 +804,7 @@ static int dp_display_set_mode(struct msm_dp *dp_display,
>   	drm_mode_copy(&dp->panel->dp_mode.drm_mode, &mode->drm_mode);
>   	dp->panel->dp_mode.bpp = mode->bpp;
>   	dp->panel->dp_mode.capabilities = mode->capabilities;
> +	dp->panel->dp_mode.out_fmt_is_yuv_420 = mode->out_fmt_is_yuv_420;

Why do we need it in dp_panel too?

>   	dp_panel_init_panel_info(dp->panel);
>   	return 0;
>   }
> @@ -1402,6 +1399,9 @@ bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
>   
>   	dp = container_of(dp_display, struct dp_display_private, dp_display);
>   
> +	if (dp->dp_mode.out_fmt_is_yuv_420)
> +		return false;
> +
>   	return dp->wide_bus_supported;
>   }
>   
> @@ -1615,6 +1615,15 @@ void dp_bridge_mode_set(struct drm_bridge *drm_bridge,
>   
>   	dp_display->dp_mode.h_active_low =
>   		!!(dp_display->dp_mode.drm_mode.flags & DRM_MODE_FLAG_NHSYNC);
> +
> +	dp_display->dp_mode.out_fmt_is_yuv_420 =
> +		drm_mode_is_420_only(&dp->connector->display_info, adjusted_mode);
> +
> +	/* populate wide_bus_support to different layers */
> +	dp_display->ctrl->wide_bus_en =
> +		dp_display->dp_mode.out_fmt_is_yuv_420 ? false : dp_display->wide_bus_supported;
> +	dp_display->catalog->wide_bus_en =
> +		dp_display->dp_mode.out_fmt_is_yuv_420 ? false : dp_display->wide_bus_supported;
>   }
>   
>   void dp_bridge_hpd_enable(struct drm_bridge *bridge)
> diff --git a/drivers/gpu/drm/msm/dp/dp_panel.h b/drivers/gpu/drm/msm/dp/dp_panel.h
> index a0dfc579c5f9f..6ec68be9f2366 100644
> --- a/drivers/gpu/drm/msm/dp/dp_panel.h
> +++ b/drivers/gpu/drm/msm/dp/dp_panel.h
> @@ -19,6 +19,7 @@ struct dp_display_mode {
>   	u32 bpp;
>   	u32 h_active_low;
>   	u32 v_active_low;
> +	bool out_fmt_is_yuv_420;
>   };
>   
>   struct dp_panel_in {
Paloma Arellano Jan. 27, 2024, 12:48 a.m. UTC | #2 
On 1/25/2024 1:20 PM, Dmitry Baryshkov wrote:
> On 25/01/2024 21:38, Paloma Arellano wrote:
>> Wide bus is not supported when the mode is YUV420 in DP. In preparation
>> for changing the DPU programming to reflect this, the value and
>> assignment location of wide_bus_en for the DP submodules must be
>> changed. Move it from boot time in dp_init_sub_modules() to run time in
>> dp_display_mode_set.
>>
>> Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
>> ---
>>   drivers/gpu/drm/msm/dp/dp_display.c | 17 +++++++++++++----
>>   drivers/gpu/drm/msm/dp/dp_panel.h   |  1 +
>>   2 files changed, 14 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c 
>> b/drivers/gpu/drm/msm/dp/dp_display.c
>> index 9df2a8b21021e..ddac55f45a722 100644
>> --- a/drivers/gpu/drm/msm/dp/dp_display.c
>> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
>> @@ -784,10 +784,6 @@ static int dp_init_sub_modules(struct 
>> dp_display_private *dp)
>>           goto error_ctrl;
>>       }
>>   -    /* populate wide_bus_supported to different layers */
>> -    dp->ctrl->wide_bus_en = dp->wide_bus_supported;
>> -    dp->catalog->wide_bus_en = dp->wide_bus_supported;
>> -
>>       return rc;
>>     error_ctrl:
>> @@ -808,6 +804,7 @@ static int dp_display_set_mode(struct msm_dp 
>> *dp_display,
>>       drm_mode_copy(&dp->panel->dp_mode.drm_mode, &mode->drm_mode);
>>       dp->panel->dp_mode.bpp = mode->bpp;
>>       dp->panel->dp_mode.capabilities = mode->capabilities;
>> +    dp->panel->dp_mode.out_fmt_is_yuv_420 = mode->out_fmt_is_yuv_420;
>
> Why do we need it in dp_panel too?
Not sure if you saw in the other later patches, but I use the 
out_fmt_is_yuv_420 derived from dp_panel throughout dp_ctrl.c and dp_panel.c
>
>> dp_panel_init_panel_info(dp->panel);
>>       return 0;
>>   }
>> @@ -1402,6 +1399,9 @@ bool msm_dp_wide_bus_available(const struct 
>> msm_dp *dp_display)
>>         dp = container_of(dp_display, struct dp_display_private, 
>> dp_display);
>>   +    if (dp->dp_mode.out_fmt_is_yuv_420)
>> +        return false;
>> +
>>       return dp->wide_bus_supported;
>>   }
>>   @@ -1615,6 +1615,15 @@ void dp_bridge_mode_set(struct drm_bridge 
>> *drm_bridge,
>>         dp_display->dp_mode.h_active_low =
>>           !!(dp_display->dp_mode.drm_mode.flags & DRM_MODE_FLAG_NHSYNC);
>> +
>> +    dp_display->dp_mode.out_fmt_is_yuv_420 =
>> + drm_mode_is_420_only(&dp->connector->display_info, adjusted_mode);
>> +
>> +    /* populate wide_bus_support to different layers */
>> +    dp_display->ctrl->wide_bus_en =
>> +        dp_display->dp_mode.out_fmt_is_yuv_420 ? false : 
>> dp_display->wide_bus_supported;
>> +    dp_display->catalog->wide_bus_en =
>> +        dp_display->dp_mode.out_fmt_is_yuv_420 ? false : 
>> dp_display->wide_bus_supported;
>>   }
>>     void dp_bridge_hpd_enable(struct drm_bridge *bridge)
>> diff --git a/drivers/gpu/drm/msm/dp/dp_panel.h 
>> b/drivers/gpu/drm/msm/dp/dp_panel.h
>> index a0dfc579c5f9f..6ec68be9f2366 100644
>> --- a/drivers/gpu/drm/msm/dp/dp_panel.h
>> +++ b/drivers/gpu/drm/msm/dp/dp_panel.h
>> @@ -19,6 +19,7 @@ struct dp_display_mode {
>>       u32 bpp;
>>       u32 h_active_low;
>>       u32 v_active_low;
>> +    bool out_fmt_is_yuv_420;
>>   };
>>     struct dp_panel_in {
>
Dmitry Baryshkov Jan. 27, 2024, 2:29 a.m. UTC | #3 
On Sat, 27 Jan 2024 at 02:48, Paloma Arellano <quic_parellan@quicinc.com> wrote:
>
>
> On 1/25/2024 1:20 PM, Dmitry Baryshkov wrote:
> > On 25/01/2024 21:38, Paloma Arellano wrote:
> >> Wide bus is not supported when the mode is YUV420 in DP. In preparation
> >> for changing the DPU programming to reflect this, the value and
> >> assignment location of wide_bus_en for the DP submodules must be
> >> changed. Move it from boot time in dp_init_sub_modules() to run time in
> >> dp_display_mode_set.
> >>
> >> Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
> >> ---
> >>   drivers/gpu/drm/msm/dp/dp_display.c | 17 +++++++++++++----
> >>   drivers/gpu/drm/msm/dp/dp_panel.h   |  1 +
> >>   2 files changed, 14 insertions(+), 4 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c
> >> b/drivers/gpu/drm/msm/dp/dp_display.c
> >> index 9df2a8b21021e..ddac55f45a722 100644
> >> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> >> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> >> @@ -784,10 +784,6 @@ static int dp_init_sub_modules(struct
> >> dp_display_private *dp)
> >>           goto error_ctrl;
> >>       }
> >>   -    /* populate wide_bus_supported to different layers */
> >> -    dp->ctrl->wide_bus_en = dp->wide_bus_supported;
> >> -    dp->catalog->wide_bus_en = dp->wide_bus_supported;
> >> -
> >>       return rc;
> >>     error_ctrl:
> >> @@ -808,6 +804,7 @@ static int dp_display_set_mode(struct msm_dp
> >> *dp_display,
> >>       drm_mode_copy(&dp->panel->dp_mode.drm_mode, &mode->drm_mode);
> >>       dp->panel->dp_mode.bpp = mode->bpp;
> >>       dp->panel->dp_mode.capabilities = mode->capabilities;
> >> +    dp->panel->dp_mode.out_fmt_is_yuv_420 = mode->out_fmt_is_yuv_420;
> >
> > Why do we need it in dp_panel too?
> Not sure if you saw in the other later patches, but I use the
> out_fmt_is_yuv_420 derived from dp_panel throughout dp_ctrl.c and dp_panel.c

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> >
> >> dp_panel_init_panel_info(dp->panel);
> >>       return 0;
> >>   }
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 9df2a8b21021e..ddac55f45a722 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -784,10 +784,6 @@  static int dp_init_sub_modules(struct dp_display_private *dp)
 		goto error_ctrl;
 	}
 
-	/* populate wide_bus_supported to different layers */
-	dp->ctrl->wide_bus_en = dp->wide_bus_supported;
-	dp->catalog->wide_bus_en = dp->wide_bus_supported;
-
 	return rc;
 
 error_ctrl:
@@ -808,6 +804,7 @@  static int dp_display_set_mode(struct msm_dp *dp_display,
 	drm_mode_copy(&dp->panel->dp_mode.drm_mode, &mode->drm_mode);
 	dp->panel->dp_mode.bpp = mode->bpp;
 	dp->panel->dp_mode.capabilities = mode->capabilities;
+	dp->panel->dp_mode.out_fmt_is_yuv_420 = mode->out_fmt_is_yuv_420;
 	dp_panel_init_panel_info(dp->panel);
 	return 0;
 }
@@ -1402,6 +1399,9 @@  bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
 
 	dp = container_of(dp_display, struct dp_display_private, dp_display);
 
+	if (dp->dp_mode.out_fmt_is_yuv_420)
+		return false;
+
 	return dp->wide_bus_supported;
 }
 
@@ -1615,6 +1615,15 @@  void dp_bridge_mode_set(struct drm_bridge *drm_bridge,
 
 	dp_display->dp_mode.h_active_low =
 		!!(dp_display->dp_mode.drm_mode.flags & DRM_MODE_FLAG_NHSYNC);
+
+	dp_display->dp_mode.out_fmt_is_yuv_420 =
+		drm_mode_is_420_only(&dp->connector->display_info, adjusted_mode);
+
+	/* populate wide_bus_support to different layers */
+	dp_display->ctrl->wide_bus_en =
+		dp_display->dp_mode.out_fmt_is_yuv_420 ? false : dp_display->wide_bus_supported;
+	dp_display->catalog->wide_bus_en =
+		dp_display->dp_mode.out_fmt_is_yuv_420 ? false : dp_display->wide_bus_supported;
 }
 
 void dp_bridge_hpd_enable(struct drm_bridge *bridge)
diff --git a/drivers/gpu/drm/msm/dp/dp_panel.h b/drivers/gpu/drm/msm/dp/dp_panel.h
index a0dfc579c5f9f..6ec68be9f2366 100644
--- a/drivers/gpu/drm/msm/dp/dp_panel.h
+++ b/drivers/gpu/drm/msm/dp/dp_panel.h
@@ -19,6 +19,7 @@  struct dp_display_mode {
 	u32 bpp;
 	u32 h_active_low;
 	u32 v_active_low;
+	bool out_fmt_is_yuv_420;
 };
 
 struct dp_panel_in {