[PATCH] drm: atmel-hlcdc: update the LCDC_ATTRE register in plane atomic_disable

[PATCH] drm: atmel-hlcdc: update the LCDC_ATTRE register in plane atomic_disable

[Manikandan Muralidharan]

update the LCDC_ATTRE register in drm plane atomic_disable to handle
the configuration changes of each layer when a plane is disabled.

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h    |  3 ++-
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 17 ++++++++++++++---
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
index e1a0bb24b511..53d47f01db0b 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
@@ -378,7 +378,8 @@ struct atmel_lcdc_dc_ops {
 	void (*lcdc_update_buffers)(struct atmel_hlcdc_plane *plane,
 				    struct atmel_hlcdc_plane_state *state,
 				    u32 sr, int i);
-	void (*lcdc_atomic_disable)(struct atmel_hlcdc_plane *plane);
+	void (*lcdc_atomic_disable)(struct atmel_hlcdc_plane *plane,
+				    struct atmel_hlcdc_dc *dc);
 	void (*lcdc_update_general_settings)(struct atmel_hlcdc_plane *plane,
 					     struct atmel_hlcdc_plane_state *state);
 	void (*lcdc_atomic_update)(struct atmel_hlcdc_plane *plane,
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
index 4a7ba0918eca..4bcaf2cd7672 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
@@ -816,7 +816,8 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
 	return 0;
 }
 
-static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
+static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane,
+				       struct atmel_hlcdc_dc *dc)
 {
 	/* Disable interrupts */
 	atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IDR,
@@ -832,7 +833,8 @@ static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
 	atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR);
 }
 
-static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
+static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane,
+				       struct atmel_hlcdc_dc *dc)
 {
 	/* Disable interrupts */
 	atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_XLCDC_LAYER_IDR,
@@ -842,6 +844,15 @@ static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
 	atmel_hlcdc_layer_write_reg(&plane->layer,
 				    ATMEL_XLCDC_LAYER_ENR, 0);
 
+	/*
+	 * Updating XLCDC_xxxCFGx, XLCDC_xxxFBA and XLCDC_xxxEN,
+	 * (where xxx indicates each layer) requires writing one to the
+	 * Update Attribute field for each layer in LCDC_ATTRE register for SAM9X7.
+	 */
+	regmap_write(dc->hlcdc->regmap, ATMEL_XLCDC_ATTRE, ATMEL_XLCDC_BASE_UPDATE |
+		     ATMEL_XLCDC_OVR1_UPDATE | ATMEL_XLCDC_OVR3_UPDATE |
+		     ATMEL_XLCDC_HEO_UPDATE);
+
 	/* Clear all pending interrupts */
 	atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_XLCDC_LAYER_ISR);
 }
@@ -852,7 +863,7 @@ static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p,
 	struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
 	struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private;
 
-	dc->desc->ops->lcdc_atomic_disable(plane);
+	dc->desc->ops->lcdc_atomic_disable(plane, dc);
 }
 
 static void atmel_hlcdc_atomic_update(struct atmel_hlcdc_plane *plane,
-- 
2.25.1

Re: [PATCH] drm: atmel-hlcdc: update the LCDC_ATTRE register in plane atomic_disable

[Nicolas Ferre]

On 14/10/2024 at 08:46, Manikandan Muralidharan wrote:
> update the LCDC_ATTRE register in drm plane atomic_disable to handle
> the configuration changes of each layer when a plane is disabled.
> 
> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>

Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com>

Thanks Mani. Best regards,
   Nicolas

> ---
>   drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h    |  3 ++-
>   drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 17 ++++++++++++++---
>   2 files changed, 16 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
> index e1a0bb24b511..53d47f01db0b 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
> @@ -378,7 +378,8 @@ struct atmel_lcdc_dc_ops {
>   	void (*lcdc_update_buffers)(struct atmel_hlcdc_plane *plane,
>   				    struct atmel_hlcdc_plane_state *state,
>   				    u32 sr, int i);
> -	void (*lcdc_atomic_disable)(struct atmel_hlcdc_plane *plane);
> +	void (*lcdc_atomic_disable)(struct atmel_hlcdc_plane *plane,
> +				    struct atmel_hlcdc_dc *dc);
>   	void (*lcdc_update_general_settings)(struct atmel_hlcdc_plane *plane,
>   					     struct atmel_hlcdc_plane_state *state);
>   	void (*lcdc_atomic_update)(struct atmel_hlcdc_plane *plane,
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> index 4a7ba0918eca..4bcaf2cd7672 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> @@ -816,7 +816,8 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
>   	return 0;
>   }
>   
> -static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
> +static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane,
> +				       struct atmel_hlcdc_dc *dc)
>   {
>   	/* Disable interrupts */
>   	atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IDR,
> @@ -832,7 +833,8 @@ static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
>   	atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR);
>   }
>   
> -static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
> +static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane,
> +				       struct atmel_hlcdc_dc *dc)
>   {
>   	/* Disable interrupts */
>   	atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_XLCDC_LAYER_IDR,
> @@ -842,6 +844,15 @@ static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
>   	atmel_hlcdc_layer_write_reg(&plane->layer,
>   				    ATMEL_XLCDC_LAYER_ENR, 0);
>   
> +	/*
> +	 * Updating XLCDC_xxxCFGx, XLCDC_xxxFBA and XLCDC_xxxEN,
> +	 * (where xxx indicates each layer) requires writing one to the
> +	 * Update Attribute field for each layer in LCDC_ATTRE register for SAM9X7.
> +	 */
> +	regmap_write(dc->hlcdc->regmap, ATMEL_XLCDC_ATTRE, ATMEL_XLCDC_BASE_UPDATE |
> +		     ATMEL_XLCDC_OVR1_UPDATE | ATMEL_XLCDC_OVR3_UPDATE |
> +		     ATMEL_XLCDC_HEO_UPDATE);
> +
>   	/* Clear all pending interrupts */
>   	atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_XLCDC_LAYER_ISR);
>   }
> @@ -852,7 +863,7 @@ static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p,
>   	struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
>   	struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private;
>   
> -	dc->desc->ops->lcdc_atomic_disable(plane);
> +	dc->desc->ops->lcdc_atomic_disable(plane, dc);
>   }
>   
>   static void atmel_hlcdc_atomic_update(struct atmel_hlcdc_plane *plane,

Re: [PATCH] drm: atmel-hlcdc: update the LCDC_ATTRE register in plane atomic_disable

[Manikandan.M]

Hi,

A gentle reminder to merge this patch. Let me know if any further 
changes are needed.

On 14/10/24 3:14 pm, Nicolas Ferre wrote:
> On 14/10/2024 at 08:46, Manikandan Muralidharan wrote:
>> update the LCDC_ATTRE register in drm plane atomic_disable to handle
>> the configuration changes of each layer when a plane is disabled.
>>
>> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
> 
> Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com>
> 
> Thanks Mani. Best regards,
>    Nicolas
> 
>> ---
>>   drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h    |  3 ++-
>>   drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 17 ++++++++++++++---
>>   2 files changed, 16 insertions(+), 4 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h 
>> b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
>> index e1a0bb24b511..53d47f01db0b 100644
>> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
>> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
>> @@ -378,7 +378,8 @@ struct atmel_lcdc_dc_ops {
>>       void (*lcdc_update_buffers)(struct atmel_hlcdc_plane *plane,
>>                       struct atmel_hlcdc_plane_state *state,
>>                       u32 sr, int i);
>> -    void (*lcdc_atomic_disable)(struct atmel_hlcdc_plane *plane);
>> +    void (*lcdc_atomic_disable)(struct atmel_hlcdc_plane *plane,
>> +                    struct atmel_hlcdc_dc *dc);
>>       void (*lcdc_update_general_settings)(struct atmel_hlcdc_plane 
>> *plane,
>>                            struct atmel_hlcdc_plane_state *state);
>>       void (*lcdc_atomic_update)(struct atmel_hlcdc_plane *plane,
>> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c 
>> b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
>> index 4a7ba0918eca..4bcaf2cd7672 100644
>> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
>> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
>> @@ -816,7 +816,8 @@ static int atmel_hlcdc_plane_atomic_check(struct 
>> drm_plane *p,
>>       return 0;
>>   }
>> -static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
>> +static void atmel_hlcdc_atomic_disable(struct atmel_hlcdc_plane *plane,
>> +                       struct atmel_hlcdc_dc *dc)
>>   {
>>       /* Disable interrupts */
>>       atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IDR,
>> @@ -832,7 +833,8 @@ static void atmel_hlcdc_atomic_disable(struct 
>> atmel_hlcdc_plane *plane)
>>       atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR);
>>   }
>> -static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane)
>> +static void atmel_xlcdc_atomic_disable(struct atmel_hlcdc_plane *plane,
>> +                       struct atmel_hlcdc_dc *dc)
>>   {
>>       /* Disable interrupts */
>>       atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_XLCDC_LAYER_IDR,
>> @@ -842,6 +844,15 @@ static void atmel_xlcdc_atomic_disable(struct 
>> atmel_hlcdc_plane *plane)
>>       atmel_hlcdc_layer_write_reg(&plane->layer,
>>                       ATMEL_XLCDC_LAYER_ENR, 0);
>> +    /*
>> +     * Updating XLCDC_xxxCFGx, XLCDC_xxxFBA and XLCDC_xxxEN,
>> +     * (where xxx indicates each layer) requires writing one to the
>> +     * Update Attribute field for each layer in LCDC_ATTRE register 
>> for SAM9X7.
>> +     */
>> +    regmap_write(dc->hlcdc->regmap, ATMEL_XLCDC_ATTRE, 
>> ATMEL_XLCDC_BASE_UPDATE |
>> +             ATMEL_XLCDC_OVR1_UPDATE | ATMEL_XLCDC_OVR3_UPDATE |
>> +             ATMEL_XLCDC_HEO_UPDATE);
>> +
>>       /* Clear all pending interrupts */
>>       atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_XLCDC_LAYER_ISR);
>>   }
>> @@ -852,7 +863,7 @@ static void 
>> atmel_hlcdc_plane_atomic_disable(struct drm_plane *p,
>>       struct atmel_hlcdc_plane *plane = 
>> drm_plane_to_atmel_hlcdc_plane(p);
>>       struct atmel_hlcdc_dc *dc = plane->base.dev->dev_private;
>> -    dc->desc->ops->lcdc_atomic_disable(plane);
>> +    dc->desc->ops->lcdc_atomic_disable(plane, dc);
>>   }
>>   static void atmel_hlcdc_atomic_update(struct atmel_hlcdc_plane *plane,
> 

-- 
Thanks and Regards,
Manikandan M.

Re: [PATCH] drm: atmel-hlcdc: update the LCDC_ATTRE register in plane atomic_disable

[Manikandan.M]

On 14/10/24 3:14 pm, Nicolas Ferre wrote:
> On 14/10/2024 at 08:46, Manikandan Muralidharan wrote:
>> update the LCDC_ATTRE register in drm plane atomic_disable to handle
>> the configuration changes of each layer when a plane is disabled.
>>
>> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
> 
> Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com>
> 
> Thanks Mani. Best regards,
>    Nicolas
> 

Applied to drm-misc-next.

-- 
Thanks and Regards,
Manikandan M.