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[PATCH 1/5] drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in dw_hdmi_qp_plat_data

Cristian Ciocaltea posted 5 patches 7 months, 1 week ago
There is a newer version of this series
[PATCH 1/5] drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in dw_hdmi_qp_plat_data
Posted by Cristian Ciocaltea 7 months, 1 week ago 
In preparation to support the CEC interface of the DesignWare HDMI QP IP
block, extend the platform data to provide the required IRQ number.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
---
 drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 4 ++++
 include/drm/bridge/dw_hdmi_qp.h                | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
index 7d531b6f4c098c6c548788dad487ce4613a2f32b..126e556025961e8645f3567b4d7a1c73cc2f2e7f 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
@@ -539,6 +539,10 @@ static int dw_hdmi_qp_rockchip_bind(struct device *dev, struct device *master,
 	if (plat_data.main_irq < 0)
 		return plat_data.main_irq;
 
+	plat_data.cec_irq = platform_get_irq_byname(pdev, "cec");
+	if (plat_data.cec_irq < 0)
+		return plat_data.cec_irq;
+
 	irq = platform_get_irq_byname(pdev, "hpd");
 	if (irq < 0)
 		return irq;
diff --git a/include/drm/bridge/dw_hdmi_qp.h b/include/drm/bridge/dw_hdmi_qp.h
index e9be6d507ad9cdc55f5c7d6d3ef37eba41f1ce74..b4a9b739734ec7b67013b683fe6017551aa19172 100644
--- a/include/drm/bridge/dw_hdmi_qp.h
+++ b/include/drm/bridge/dw_hdmi_qp.h
@@ -23,6 +23,7 @@ struct dw_hdmi_qp_plat_data {
 	const struct dw_hdmi_qp_phy_ops *phy_ops;
 	void *phy_data;
 	int main_irq;
+	int cec_irq;
 };
 
 struct dw_hdmi_qp *dw_hdmi_qp_bind(struct platform_device *pdev,

-- 
2.50.0
Re: [PATCH 1/5] drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in dw_hdmi_qp_plat_data
Posted by Heiko Stübner 7 months, 1 week ago 
Hi Cristian,

Am Freitag, 4. Juli 2025, 16:23:22 Mitteleuropäische Sommerzeit schrieb Cristian Ciocaltea:
> In preparation to support the CEC interface of the DesignWare HDMI QP IP
> block, extend the platform data to provide the required IRQ number.
> 
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
> ---
>  drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 4 ++++
>  include/drm/bridge/dw_hdmi_qp.h                | 1 +
>  2 files changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
> index 7d531b6f4c098c6c548788dad487ce4613a2f32b..126e556025961e8645f3567b4d7a1c73cc2f2e7f 100644
> --- a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
> @@ -539,6 +539,10 @@ static int dw_hdmi_qp_rockchip_bind(struct device *dev, struct device *master,
>  	if (plat_data.main_irq < 0)
>  		return plat_data.main_irq;
>  
> +	plat_data.cec_irq = platform_get_irq_byname(pdev, "cec");
> +	if (plat_data.cec_irq < 0)
> +		return plat_data.cec_irq;
> +
>  	irq = platform_get_irq_byname(pdev, "hpd");
>  	if (irq < 0)
>  		return irq;
> diff --git a/include/drm/bridge/dw_hdmi_qp.h b/include/drm/bridge/dw_hdmi_qp.h
> index e9be6d507ad9cdc55f5c7d6d3ef37eba41f1ce74..b4a9b739734ec7b67013b683fe6017551aa19172 100644
> --- a/include/drm/bridge/dw_hdmi_qp.h
> +++ b/include/drm/bridge/dw_hdmi_qp.h
> @@ -23,6 +23,7 @@ struct dw_hdmi_qp_plat_data {
>  	const struct dw_hdmi_qp_phy_ops *phy_ops;
>  	void *phy_data;
>  	int main_irq;
> +	int cec_irq;
>  };

from a structure point-of-view, I'd expect the series to be something like:

(1) drm/bridge: dw-hdmi-qp: Add CEC support
    -> including adding the cec_irq to dw_hdmi_qp_plat_data
(2) drm/bridge: dw-hdmi-qp: Fixup timer base setup
    -> including adding the ref_clk_rate to dw_hdmi_qp_plat_data
(3) drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in dw_hdmi_qp_plat_data
(4) drm/rockchip: dw_hdmi_qp: Provide ref clock rate in dw_hdmi_qp_plat_data
(5) arm64: defconfig: Enable DW HDMI QP CEC support

The patches adding the generic functionality to the bridge should also
include the needed elements and not depend on platform-specific patches.


Heiko
Re: [PATCH 1/5] drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in dw_hdmi_qp_plat_data
Posted by Cristian Ciocaltea 7 months, 1 week ago 
Hi Heiko,

On 7/4/25 5:37 PM, Heiko Stübner wrote:
> Hi Cristian,
> 
> Am Freitag, 4. Juli 2025, 16:23:22 Mitteleuropäische Sommerzeit schrieb Cristian Ciocaltea:
>> In preparation to support the CEC interface of the DesignWare HDMI QP IP
>> block, extend the platform data to provide the required IRQ number.
>>
>> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
>> ---
>>  drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 4 ++++
>>  include/drm/bridge/dw_hdmi_qp.h                | 1 +
>>  2 files changed, 5 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
>> index 7d531b6f4c098c6c548788dad487ce4613a2f32b..126e556025961e8645f3567b4d7a1c73cc2f2e7f 100644
>> --- a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
>> +++ b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
>> @@ -539,6 +539,10 @@ static int dw_hdmi_qp_rockchip_bind(struct device *dev, struct device *master,
>>  	if (plat_data.main_irq < 0)
>>  		return plat_data.main_irq;
>>  
>> +	plat_data.cec_irq = platform_get_irq_byname(pdev, "cec");
>> +	if (plat_data.cec_irq < 0)
>> +		return plat_data.cec_irq;
>> +
>>  	irq = platform_get_irq_byname(pdev, "hpd");
>>  	if (irq < 0)
>>  		return irq;
>> diff --git a/include/drm/bridge/dw_hdmi_qp.h b/include/drm/bridge/dw_hdmi_qp.h
>> index e9be6d507ad9cdc55f5c7d6d3ef37eba41f1ce74..b4a9b739734ec7b67013b683fe6017551aa19172 100644
>> --- a/include/drm/bridge/dw_hdmi_qp.h
>> +++ b/include/drm/bridge/dw_hdmi_qp.h
>> @@ -23,6 +23,7 @@ struct dw_hdmi_qp_plat_data {
>>  	const struct dw_hdmi_qp_phy_ops *phy_ops;
>>  	void *phy_data;
>>  	int main_irq;
>> +	int cec_irq;
>>  };
> 
> from a structure point-of-view, I'd expect the series to be something like:
> 
> (1) drm/bridge: dw-hdmi-qp: Add CEC support
>     -> including adding the cec_irq to dw_hdmi_qp_plat_data
> (2) drm/bridge: dw-hdmi-qp: Fixup timer base setup
>     -> including adding the ref_clk_rate to dw_hdmi_qp_plat_data
> (3) drm/rockchip: dw_hdmi_qp: Provide CEC IRQ in dw_hdmi_qp_plat_data
> (4) drm/rockchip: dw_hdmi_qp: Provide ref clock rate in dw_hdmi_qp_plat_data
> (5) arm64: defconfig: Enable DW HDMI QP CEC support
> 
> The patches adding the generic functionality to the bridge should also
> include the needed elements and not depend on platform-specific patches.

You are right, that's a much better approach.

Thanks for the quick feedback!

Regards,
Cristian

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