diff mbox series

[v3,10/13] drm/msm/dpu: remove topology name

Message ID 1533698411-29819-1-git-send-email-jsanka@codeaurora.org (mailing list archive)
State New, archived
Headers show
Series Atomic resource management | expand

Commit Message

Jeykumar Sankaran Aug. 8, 2018, 3:20 a.m. UTC
Strip down the support for topology enums. It
can be replaced with simple hw count checks.

changes in v2:
	- none
changes in v3:
	- none

Change-Id: If9b2a4db5bbdf8545b99b6d90825e256d014382d
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c          |  3 ---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h     |  9 ++++++---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c |  7 ++++---
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c               | 12 ------------
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h               |  9 ---------
 5 files changed, 10 insertions(+), 30 deletions(-)

Comments

Sean Paul Aug. 14, 2018, 8:14 p.m. UTC | #1
On Tue, Aug 07, 2018 at 08:20:08PM -0700, Jeykumar Sankaran wrote:
> Strip down the support for topology enums. It
> can be replaced with simple hw count checks.

Can you remove the enum entirely? A quick scan seems like it might be possible,
it seems like it's only used in topology_def to pass to reservations and it's
only used in reservations for log messages. Ofc, I might be missing some usage a
little more buried...

Sean

> 
> changes in v2:
> 	- none
> changes in v3:
> 	- none
> 
> Change-Id: If9b2a4db5bbdf8545b99b6d90825e256d014382d
> Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c          |  3 ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h     |  9 ++++++---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c |  7 ++++---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c               | 12 ------------
>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h               |  9 ---------
>  5 files changed, 10 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index 7b82e2d..58647ed 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -1019,7 +1019,6 @@ static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
>  	struct drm_connector *conn = NULL, *conn_iter;
>  	struct dpu_rm_hw_iter pp_iter, ctl_iter;
>  	struct msm_display_topology topology;
> -	enum dpu_rm_topology_name topology_name;
>  	struct dpu_hw_ctl *hw_ctl[MAX_CHANNELS_PER_ENC];
>  
>  	int i = 0, ret;
> @@ -1077,7 +1076,6 @@ static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
>  		hw_ctl[i] = (struct dpu_hw_ctl *)ctl_iter.hw;
>  	}
>  
> -	topology_name = dpu_rm_get_topology_name(topology);
>  	for (i = 0; i < dpu_enc->num_phys_encs; i++) {
>  		struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
>  
> @@ -1097,7 +1095,6 @@ static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
>  			phys->hw_ctl = hw_ctl[i];
>  
>  			phys->connector = conn->state->connector;
> -			phys->topology_name = topology_name;
>  			if (phys->ops.mode_set)
>  				phys->ops.mode_set(phys, mode, adj_mode);
>  		}
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
> index c7df8aa..d08b5d5 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
> @@ -24,6 +24,7 @@
>  #include "dpu_hw_top.h"
>  #include "dpu_hw_cdm.h"
>  #include "dpu_encoder.h"
> +#include "dpu_crtc.h"
>  
>  #define DPU_ENCODER_NAME_MAX	16
>  
> @@ -219,7 +220,6 @@ struct dpu_encoder_irq {
>   * @split_role:		Role to play in a split-panel configuration
>   * @intf_mode:		Interface mode
>   * @intf_idx:		Interface index on dpu hardware
> - * @topology_name:	topology selected for the display
>   * @enc_spinlock:	Virtual-Encoder-Wide Spin Lock for IRQ purposes
>   * @enable_state:	Enable state tracking
>   * @vblank_refcount:	Reference count of vblank request
> @@ -249,7 +249,6 @@ struct dpu_encoder_phys {
>  	enum dpu_enc_split_role split_role;
>  	enum dpu_intf_mode intf_mode;
>  	enum dpu_intf intf_idx;
> -	enum dpu_rm_topology_name topology_name;
>  	spinlock_t *enc_spinlock;
>  	enum dpu_enc_enable_state enable_state;
>  	atomic_t vblank_refcount;
> @@ -367,11 +366,15 @@ struct dpu_encoder_phys *dpu_encoder_phys_cmd_init(
>  static inline enum dpu_3d_blend_mode dpu_encoder_helper_get_3d_blend_mode(
>  		struct dpu_encoder_phys *phys_enc)
>  {
> +	struct dpu_crtc_state *dpu_cstate;
> +
>  	if (!phys_enc || phys_enc->enable_state == DPU_ENC_DISABLING)
>  		return BLEND_3D_NONE;
>  
> +	dpu_cstate = to_dpu_crtc_state(phys_enc->parent->crtc->state);
> +
>  	if (phys_enc->split_role == ENC_ROLE_SOLO &&
> -	    phys_enc->topology_name == DPU_RM_TOPOLOGY_DUALPIPE_3DMERGE)
> +	    (dpu_cstate->num_mixers == 2))
>  		return BLEND_3D_H_ROW_INT;
>  
>  	return BLEND_3D_NONE;
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
> index a0b3744..88867c3 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
> @@ -355,13 +355,14 @@ static void dpu_encoder_phys_vid_underrun_irq(void *arg, int irq_idx)
>  
>  static bool _dpu_encoder_phys_is_dual_ctl(struct dpu_encoder_phys *phys_enc)
>  {
> +	struct dpu_crtc_state *dpu_cstate;
> +
>  	if (!phys_enc)
>  		return false;
>  
> -	if (phys_enc->topology_name == DPU_RM_TOPOLOGY_DUALPIPE)
> -		return true;
> +	dpu_cstate = to_dpu_crtc_state(phys_enc->parent->crtc->state);
>  
> -	return false;
> +	return (dpu_cstate->num_ctls > 1);
>  }
>  
>  static bool dpu_encoder_phys_vid_needs_single_flush(
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
> index 13c0a36..1457ae5 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
> @@ -146,18 +146,6 @@ struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm *rm)
>  	return rm->hw_mdp;
>  }
>  
> -enum dpu_rm_topology_name
> -dpu_rm_get_topology_name(struct msm_display_topology topology)
> -{
> -	int i;
> -
> -	for (i = 0; i < DPU_RM_TOPOLOGY_MAX; i++)
> -		if (RM_IS_TOPOLOGY_MATCH(g_top_table[i], topology))
> -			return g_top_table[i].top_name;
> -
> -	return DPU_RM_TOPOLOGY_NONE;
> -}
> -
>  void dpu_rm_init_hw_iter(
>  		struct dpu_rm_hw_iter *iter,
>  		uint32_t enc_id,
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
> index ffd1841..de52c03 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
> @@ -187,13 +187,4 @@ void dpu_rm_init_hw_iter(
>   */
>  int dpu_rm_check_property_topctl(uint64_t val);
>  
> -/**
> - * dpu_rm_get_topology_name - returns the name of the the given topology
> - *                            definition
> - * @topology: topology definition
> - * @Return: name of the topology
> - */
> -enum dpu_rm_topology_name
> -dpu_rm_get_topology_name(struct msm_display_topology topology);
> -
>  #endif /* __DPU_RM_H__ */
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
Jeykumar Sankaran Aug. 15, 2018, 12:31 a.m. UTC | #2
On 2018-08-14 13:14, Sean Paul wrote:
> On Tue, Aug 07, 2018 at 08:20:08PM -0700, Jeykumar Sankaran wrote:
>> Strip down the support for topology enums. It
>> can be replaced with simple hw count checks.
> 
> Can you remove the enum entirely? A quick scan seems like it might be
> possible,
> it seems like it's only used in topology_def to pass to reservations 
> and
> it's
> only used in reservations for log messages. Ofc, I might be missing 
> some
> usage a
> little more buried...
> 
> Sean
> 
The final patch in the series is getting rid of that. This patch just 
removes
the DPU dependency on those enums for getting the topology details.

Jeykumar S
>> 
>> changes in v2:
>> 	- none
>> changes in v3:
>> 	- none
>> 
>> Change-Id: If9b2a4db5bbdf8545b99b6d90825e256d014382d
>> Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
>> ---
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c          |  3 ---
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h     |  9 ++++++---
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c |  7 ++++---
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c               | 12 
>> ------------
>>  drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h               |  9 ---------
>>  5 files changed, 10 insertions(+), 30 deletions(-)
>> 
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
>> index 7b82e2d..58647ed 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
>> @@ -1019,7 +1019,6 @@ static void dpu_encoder_virt_mode_set(struct
> drm_encoder *drm_enc,
>>  	struct drm_connector *conn = NULL, *conn_iter;
>>  	struct dpu_rm_hw_iter pp_iter, ctl_iter;
>>  	struct msm_display_topology topology;
>> -	enum dpu_rm_topology_name topology_name;
>>  	struct dpu_hw_ctl *hw_ctl[MAX_CHANNELS_PER_ENC];
>> 
>>  	int i = 0, ret;
>> @@ -1077,7 +1076,6 @@ static void dpu_encoder_virt_mode_set(struct
> drm_encoder *drm_enc,
>>  		hw_ctl[i] = (struct dpu_hw_ctl *)ctl_iter.hw;
>>  	}
>> 
>> -	topology_name = dpu_rm_get_topology_name(topology);
>>  	for (i = 0; i < dpu_enc->num_phys_encs; i++) {
>>  		struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
>> 
>> @@ -1097,7 +1095,6 @@ static void dpu_encoder_virt_mode_set(struct
> drm_encoder *drm_enc,
>>  			phys->hw_ctl = hw_ctl[i];
>> 
>>  			phys->connector = conn->state->connector;
>> -			phys->topology_name = topology_name;
>>  			if (phys->ops.mode_set)
>>  				phys->ops.mode_set(phys, mode, adj_mode);
>>  		}
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
>> index c7df8aa..d08b5d5 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
>> @@ -24,6 +24,7 @@
>>  #include "dpu_hw_top.h"
>>  #include "dpu_hw_cdm.h"
>>  #include "dpu_encoder.h"
>> +#include "dpu_crtc.h"
>> 
>>  #define DPU_ENCODER_NAME_MAX	16
>> 
>> @@ -219,7 +220,6 @@ struct dpu_encoder_irq {
>>   * @split_role:		Role to play in a split-panel
> configuration
>>   * @intf_mode:		Interface mode
>>   * @intf_idx:		Interface index on dpu hardware
>> - * @topology_name:	topology selected for the display
>>   * @enc_spinlock:	Virtual-Encoder-Wide Spin Lock for IRQ purposes
>>   * @enable_state:	Enable state tracking
>>   * @vblank_refcount:	Reference count of vblank request
>> @@ -249,7 +249,6 @@ struct dpu_encoder_phys {
>>  	enum dpu_enc_split_role split_role;
>>  	enum dpu_intf_mode intf_mode;
>>  	enum dpu_intf intf_idx;
>> -	enum dpu_rm_topology_name topology_name;
>>  	spinlock_t *enc_spinlock;
>>  	enum dpu_enc_enable_state enable_state;
>>  	atomic_t vblank_refcount;
>> @@ -367,11 +366,15 @@ struct dpu_encoder_phys
> *dpu_encoder_phys_cmd_init(
>>  static inline enum dpu_3d_blend_mode
> dpu_encoder_helper_get_3d_blend_mode(
>>  		struct dpu_encoder_phys *phys_enc)
>>  {
>> +	struct dpu_crtc_state *dpu_cstate;
>> +
>>  	if (!phys_enc || phys_enc->enable_state == DPU_ENC_DISABLING)
>>  		return BLEND_3D_NONE;
>> 
>> +	dpu_cstate = to_dpu_crtc_state(phys_enc->parent->crtc->state);
>> +
>>  	if (phys_enc->split_role == ENC_ROLE_SOLO &&
>> -	    phys_enc->topology_name == DPU_RM_TOPOLOGY_DUALPIPE_3DMERGE)
>> +	    (dpu_cstate->num_mixers == 2))
>>  		return BLEND_3D_H_ROW_INT;
>> 
>>  	return BLEND_3D_NONE;
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
>> index a0b3744..88867c3 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
>> @@ -355,13 +355,14 @@ static void 
>> dpu_encoder_phys_vid_underrun_irq(void
> *arg, int irq_idx)
>> 
>>  static bool _dpu_encoder_phys_is_dual_ctl(struct dpu_encoder_phys
> *phys_enc)
>>  {
>> +	struct dpu_crtc_state *dpu_cstate;
>> +
>>  	if (!phys_enc)
>>  		return false;
>> 
>> -	if (phys_enc->topology_name == DPU_RM_TOPOLOGY_DUALPIPE)
>> -		return true;
>> +	dpu_cstate = to_dpu_crtc_state(phys_enc->parent->crtc->state);
>> 
>> -	return false;
>> +	return (dpu_cstate->num_ctls > 1);
>>  }
>> 
>>  static bool dpu_encoder_phys_vid_needs_single_flush(
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
>> index 13c0a36..1457ae5 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
>> @@ -146,18 +146,6 @@ struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm
> *rm)
>>  	return rm->hw_mdp;
>>  }
>> 
>> -enum dpu_rm_topology_name
>> -dpu_rm_get_topology_name(struct msm_display_topology topology)
>> -{
>> -	int i;
>> -
>> -	for (i = 0; i < DPU_RM_TOPOLOGY_MAX; i++)
>> -		if (RM_IS_TOPOLOGY_MATCH(g_top_table[i], topology))
>> -			return g_top_table[i].top_name;
>> -
>> -	return DPU_RM_TOPOLOGY_NONE;
>> -}
>> -
>>  void dpu_rm_init_hw_iter(
>>  		struct dpu_rm_hw_iter *iter,
>>  		uint32_t enc_id,
>> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
>> index ffd1841..de52c03 100644
>> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
>> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
>> @@ -187,13 +187,4 @@ void dpu_rm_init_hw_iter(
>>   */
>>  int dpu_rm_check_property_topctl(uint64_t val);
>> 
>> -/**
>> - * dpu_rm_get_topology_name - returns the name of the the given
> topology
>> - *                            definition
>> - * @topology: topology definition
>> - * @Return: name of the topology
>> - */
>> -enum dpu_rm_topology_name
>> -dpu_rm_get_topology_name(struct msm_display_topology topology);
>> -
>>  #endif /* __DPU_RM_H__ */
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
> Forum,
>> a Linux Foundation Collaborative Project
>>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 7b82e2d..58647ed 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -1019,7 +1019,6 @@  static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 	struct drm_connector *conn = NULL, *conn_iter;
 	struct dpu_rm_hw_iter pp_iter, ctl_iter;
 	struct msm_display_topology topology;
-	enum dpu_rm_topology_name topology_name;
 	struct dpu_hw_ctl *hw_ctl[MAX_CHANNELS_PER_ENC];
 
 	int i = 0, ret;
@@ -1077,7 +1076,6 @@  static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 		hw_ctl[i] = (struct dpu_hw_ctl *)ctl_iter.hw;
 	}
 
-	topology_name = dpu_rm_get_topology_name(topology);
 	for (i = 0; i < dpu_enc->num_phys_encs; i++) {
 		struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
 
@@ -1097,7 +1095,6 @@  static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
 			phys->hw_ctl = hw_ctl[i];
 
 			phys->connector = conn->state->connector;
-			phys->topology_name = topology_name;
 			if (phys->ops.mode_set)
 				phys->ops.mode_set(phys, mode, adj_mode);
 		}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
index c7df8aa..d08b5d5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h
@@ -24,6 +24,7 @@ 
 #include "dpu_hw_top.h"
 #include "dpu_hw_cdm.h"
 #include "dpu_encoder.h"
+#include "dpu_crtc.h"
 
 #define DPU_ENCODER_NAME_MAX	16
 
@@ -219,7 +220,6 @@  struct dpu_encoder_irq {
  * @split_role:		Role to play in a split-panel configuration
  * @intf_mode:		Interface mode
  * @intf_idx:		Interface index on dpu hardware
- * @topology_name:	topology selected for the display
  * @enc_spinlock:	Virtual-Encoder-Wide Spin Lock for IRQ purposes
  * @enable_state:	Enable state tracking
  * @vblank_refcount:	Reference count of vblank request
@@ -249,7 +249,6 @@  struct dpu_encoder_phys {
 	enum dpu_enc_split_role split_role;
 	enum dpu_intf_mode intf_mode;
 	enum dpu_intf intf_idx;
-	enum dpu_rm_topology_name topology_name;
 	spinlock_t *enc_spinlock;
 	enum dpu_enc_enable_state enable_state;
 	atomic_t vblank_refcount;
@@ -367,11 +366,15 @@  struct dpu_encoder_phys *dpu_encoder_phys_cmd_init(
 static inline enum dpu_3d_blend_mode dpu_encoder_helper_get_3d_blend_mode(
 		struct dpu_encoder_phys *phys_enc)
 {
+	struct dpu_crtc_state *dpu_cstate;
+
 	if (!phys_enc || phys_enc->enable_state == DPU_ENC_DISABLING)
 		return BLEND_3D_NONE;
 
+	dpu_cstate = to_dpu_crtc_state(phys_enc->parent->crtc->state);
+
 	if (phys_enc->split_role == ENC_ROLE_SOLO &&
-	    phys_enc->topology_name == DPU_RM_TOPOLOGY_DUALPIPE_3DMERGE)
+	    (dpu_cstate->num_mixers == 2))
 		return BLEND_3D_H_ROW_INT;
 
 	return BLEND_3D_NONE;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index a0b3744..88867c3 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -355,13 +355,14 @@  static void dpu_encoder_phys_vid_underrun_irq(void *arg, int irq_idx)
 
 static bool _dpu_encoder_phys_is_dual_ctl(struct dpu_encoder_phys *phys_enc)
 {
+	struct dpu_crtc_state *dpu_cstate;
+
 	if (!phys_enc)
 		return false;
 
-	if (phys_enc->topology_name == DPU_RM_TOPOLOGY_DUALPIPE)
-		return true;
+	dpu_cstate = to_dpu_crtc_state(phys_enc->parent->crtc->state);
 
-	return false;
+	return (dpu_cstate->num_ctls > 1);
 }
 
 static bool dpu_encoder_phys_vid_needs_single_flush(
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index 13c0a36..1457ae5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -146,18 +146,6 @@  struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm *rm)
 	return rm->hw_mdp;
 }
 
-enum dpu_rm_topology_name
-dpu_rm_get_topology_name(struct msm_display_topology topology)
-{
-	int i;
-
-	for (i = 0; i < DPU_RM_TOPOLOGY_MAX; i++)
-		if (RM_IS_TOPOLOGY_MATCH(g_top_table[i], topology))
-			return g_top_table[i].top_name;
-
-	return DPU_RM_TOPOLOGY_NONE;
-}
-
 void dpu_rm_init_hw_iter(
 		struct dpu_rm_hw_iter *iter,
 		uint32_t enc_id,
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
index ffd1841..de52c03 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
@@ -187,13 +187,4 @@  void dpu_rm_init_hw_iter(
  */
 int dpu_rm_check_property_topctl(uint64_t val);
 
-/**
- * dpu_rm_get_topology_name - returns the name of the the given topology
- *                            definition
- * @topology: topology definition
- * @Return: name of the topology
- */
-enum dpu_rm_topology_name
-dpu_rm_get_topology_name(struct msm_display_topology topology);
-
 #endif /* __DPU_RM_H__ */