diff mbox series

[v2] drm/bridge: analogix_dp: Split bind() into probe() and real bind()

Message ID 20200310103427.26048-1-m.szyprowski@samsung.com
State Accepted
Commit 152cce0006abf7e17dfb7dc94896b044bda4e588
Headers show
Series [v2] drm/bridge: analogix_dp: Split bind() into probe() and real bind() | expand

Commit Message

Marek Szyprowski March 10, 2020, 10:34 a.m. UTC
Analogix_dp driver acquires all its resources in the ->bind() callback,
what is a bit against the component driver based approach, where the
driver initialization is split into a probe(), where all resources are
gathered, and a bind(), where all objects are created and a compound
driver is initialized.

Extract all the resource related operations to analogix_dp_probe() and
analogix_dp_remove(), then call them before/after registration of the
device components from the main Exynos DP and Rockchip DP drivers. Also
move the plat_data initialization to the probe() to make it available for
the analogix_dp_probe() function.

This fixes the multiple calls to the bind() of the DRM compound driver
when the DP PHY driver is not yet loaded/probed:

[drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations
exynos-drm exynos-drm: bound 14400000.fimd (ops fimd_component_ops [exynosdrm])
exynos-drm exynos-drm: bound 14450000.mixer (ops mixer_component_ops [exynosdrm])
exynos-dp 145b0000.dp-controller: no DP phy configured
exynos-drm exynos-drm: failed to bind 145b0000.dp-controller (ops exynos_dp_ops [exynosdrm]): -517
exynos-drm exynos-drm: master bind failed: -517
...
[drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations
exynos-drm exynos-drm: bound 14400000.fimd (ops hdmi_enable [exynosdrm])
exynos-drm exynos-drm: bound 14450000.mixer (ops hdmi_enable [exynosdrm])
exynos-drm exynos-drm: bound 145b0000.dp-controller (ops hdmi_enable [exynosdrm])
exynos-drm exynos-drm: bound 14530000.hdmi (ops hdmi_enable [exynosdrm])
[drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
Console: switching to colour frame buffer device 170x48
exynos-drm exynos-drm: fb0: exynosdrmfb frame buffer device
[drm] Initialized exynos 1.1.0 20180330 for exynos-drm on minor 1
...

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

---
v2:
- moved plat_data initialization to exynos_dp_probe/rockchip_dp_probe as
  pointed by Andy Yan
---
 .../drm/bridge/analogix/analogix_dp_core.c    | 33 +++++++++++------
 drivers/gpu/drm/exynos/exynos_dp.c            | 29 ++++++++-------
 .../gpu/drm/rockchip/analogix_dp-rockchip.c   | 36 ++++++++++---------
 include/drm/bridge/analogix_dp.h              |  5 +--
 4 files changed, 61 insertions(+), 42 deletions(-)

-- 
2.17.1

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Comments

Andy Yan March 11, 2020, 12:50 a.m. UTC | #1
On 3/10/20 6:34 PM, Marek Szyprowski wrote:
> Analogix_dp driver acquires all its resources in the ->bind() callback,

> what is a bit against the component driver based approach, where the

> driver initialization is split into a probe(), where all resources are

> gathered, and a bind(), where all objects are created and a compound

> driver is initialized.

>

> Extract all the resource related operations to analogix_dp_probe() and

> analogix_dp_remove(), then call them before/after registration of the

> device components from the main Exynos DP and Rockchip DP drivers. Also

> move the plat_data initialization to the probe() to make it available for

> the analogix_dp_probe() function.

>

> This fixes the multiple calls to the bind() of the DRM compound driver

> when the DP PHY driver is not yet loaded/probed:

>

> [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations

> exynos-drm exynos-drm: bound 14400000.fimd (ops fimd_component_ops [exynosdrm])

> exynos-drm exynos-drm: bound 14450000.mixer (ops mixer_component_ops [exynosdrm])

> exynos-dp 145b0000.dp-controller: no DP phy configured

> exynos-drm exynos-drm: failed to bind 145b0000.dp-controller (ops exynos_dp_ops [exynosdrm]): -517

> exynos-drm exynos-drm: master bind failed: -517

> ...

> [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations

> exynos-drm exynos-drm: bound 14400000.fimd (ops hdmi_enable [exynosdrm])

> exynos-drm exynos-drm: bound 14450000.mixer (ops hdmi_enable [exynosdrm])

> exynos-drm exynos-drm: bound 145b0000.dp-controller (ops hdmi_enable [exynosdrm])

> exynos-drm exynos-drm: bound 14530000.hdmi (ops hdmi_enable [exynosdrm])

> [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).

> Console: switching to colour frame buffer device 170x48

> exynos-drm exynos-drm: fb0: exynosdrmfb frame buffer device

> [drm] Initialized exynos 1.1.0 20180330 for exynos-drm on minor 1

> ...

>

> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>



Acked-by: Andy Yan <andy.yan@rock-chips.com>


> ---

> v2:

> - moved plat_data initialization to exynos_dp_probe/rockchip_dp_probe as

>    pointed by Andy Yan

> ---

>   .../drm/bridge/analogix/analogix_dp_core.c    | 33 +++++++++++------

>   drivers/gpu/drm/exynos/exynos_dp.c            | 29 ++++++++-------

>   .../gpu/drm/rockchip/analogix_dp-rockchip.c   | 36 ++++++++++---------

>   include/drm/bridge/analogix_dp.h              |  5 +--

>   4 files changed, 61 insertions(+), 42 deletions(-)

>

> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

> index 9ded2cef57dd..76736fb8ed94 100644

> --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

> +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

> @@ -1652,8 +1652,7 @@ static ssize_t analogix_dpaux_transfer(struct drm_dp_aux *aux,

>   }

>   

>   struct analogix_dp_device *

> -analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,

> -		 struct analogix_dp_plat_data *plat_data)

> +analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data)

>   {

>   	struct platform_device *pdev = to_platform_device(dev);

>   	struct analogix_dp_device *dp;

> @@ -1756,22 +1755,30 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,

>   					irq_flags, "analogix-dp", dp);

>   	if (ret) {

>   		dev_err(&pdev->dev, "failed to request irq\n");

> -		goto err_disable_pm_runtime;

> +		return ERR_PTR(ret);

>   	}

>   	disable_irq(dp->irq);

>   

> +	return dp;

> +}

> +EXPORT_SYMBOL_GPL(analogix_dp_probe);

> +

> +int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device *drm_dev)

> +{

> +	int ret;

> +

>   	dp->drm_dev = drm_dev;

>   	dp->encoder = dp->plat_data->encoder;

>   

>   	dp->aux.name = "DP-AUX";

>   	dp->aux.transfer = analogix_dpaux_transfer;

> -	dp->aux.dev = &pdev->dev;

> +	dp->aux.dev = dp->dev;

>   

>   	ret = drm_dp_aux_register(&dp->aux);

>   	if (ret)

> -		return ERR_PTR(ret);

> +		return ret;

>   

> -	pm_runtime_enable(dev);

> +	pm_runtime_enable(dp->dev);

>   

>   	ret = analogix_dp_create_bridge(drm_dev, dp);

>   	if (ret) {

> @@ -1779,13 +1786,12 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,

>   		goto err_disable_pm_runtime;

>   	}

>   

> -	return dp;

> +	return 0;

>   

>   err_disable_pm_runtime:

> +	pm_runtime_disable(dp->dev);

>   

> -	pm_runtime_disable(dev);

> -

> -	return ERR_PTR(ret);

> +	return ret;

>   }

>   EXPORT_SYMBOL_GPL(analogix_dp_bind);

>   

> @@ -1802,10 +1808,15 @@ void analogix_dp_unbind(struct analogix_dp_device *dp)

>   

>   	drm_dp_aux_unregister(&dp->aux);

>   	pm_runtime_disable(dp->dev);

> -	clk_disable_unprepare(dp->clock);

>   }

>   EXPORT_SYMBOL_GPL(analogix_dp_unbind);

>   

> +void analogix_dp_remove(struct analogix_dp_device *dp)

> +{

> +	clk_disable_unprepare(dp->clock);

> +}

> +EXPORT_SYMBOL_GPL(analogix_dp_remove);

> +

>   #ifdef CONFIG_PM

>   int analogix_dp_suspend(struct analogix_dp_device *dp)

>   {

> diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c

> index d23d3502ca91..5ee090691390 100644

> --- a/drivers/gpu/drm/exynos/exynos_dp.c

> +++ b/drivers/gpu/drm/exynos/exynos_dp.c

> @@ -159,15 +159,8 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)

>   	struct drm_device *drm_dev = data;

>   	int ret;

>   

> -	dp->dev = dev;

>   	dp->drm_dev = drm_dev;

>   

> -	dp->plat_data.dev_type = EXYNOS_DP;

> -	dp->plat_data.power_on_start = exynos_dp_poweron;

> -	dp->plat_data.power_off = exynos_dp_poweroff;

> -	dp->plat_data.attach = exynos_dp_bridge_attach;

> -	dp->plat_data.get_modes = exynos_dp_get_modes;

> -

>   	if (!dp->plat_data.panel && !dp->ptn_bridge) {

>   		ret = exynos_dp_dt_parse_panel(dp);

>   		if (ret)

> @@ -185,13 +178,11 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)

>   

>   	dp->plat_data.encoder = encoder;

>   

> -	dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);

> -	if (IS_ERR(dp->adp)) {

> +	ret = analogix_dp_bind(dp->adp, dp->drm_dev);

> +	if (ret)

>   		dp->encoder.funcs->destroy(&dp->encoder);

> -		return PTR_ERR(dp->adp);

> -	}

>   

> -	return 0;

> +	return ret;

>   }

>   

>   static void exynos_dp_unbind(struct device *dev, struct device *master,

> @@ -222,6 +213,7 @@ static int exynos_dp_probe(struct platform_device *pdev)

>   	if (!dp)

>   		return -ENOMEM;

>   

> +	dp->dev = dev;

>   	/*

>   	 * We just use the drvdata until driver run into component

>   	 * add function, and then we would set drvdata to null, so

> @@ -247,16 +239,29 @@ static int exynos_dp_probe(struct platform_device *pdev)

>   

>   	/* The remote port can be either a panel or a bridge */

>   	dp->plat_data.panel = panel;

> +	dp->plat_data.dev_type = EXYNOS_DP;

> +	dp->plat_data.power_on_start = exynos_dp_poweron;

> +	dp->plat_data.power_off = exynos_dp_poweroff;

> +	dp->plat_data.attach = exynos_dp_bridge_attach;

> +	dp->plat_data.get_modes = exynos_dp_get_modes;

>   	dp->plat_data.skip_connector = !!bridge;

> +

>   	dp->ptn_bridge = bridge;

>   

>   out:

> +	dp->adp = analogix_dp_probe(dev, &dp->plat_data);

> +	if (IS_ERR(dp->adp))

> +		return PTR_ERR(dp->adp);

> +

>   	return component_add(&pdev->dev, &exynos_dp_ops);

>   }

>   

>   static int exynos_dp_remove(struct platform_device *pdev)

>   {

> +	struct exynos_dp_device *dp = platform_get_drvdata(pdev);

> +

>   	component_del(&pdev->dev, &exynos_dp_ops);

> +	analogix_dp_remove(dp->adp);

>   

>   	return 0;

>   }

> diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c

> index f38f5e113c6b..ce98c08aa8b4 100644

> --- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c

> +++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c

> @@ -325,15 +325,9 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,

>   			    void *data)

>   {

>   	struct rockchip_dp_device *dp = dev_get_drvdata(dev);

> -	const struct rockchip_dp_chip_data *dp_data;

>   	struct drm_device *drm_dev = data;

>   	int ret;

>   

> -	dp_data = of_device_get_match_data(dev);

> -	if (!dp_data)

> -		return -ENODEV;

> -

> -	dp->data = dp_data;

>   	dp->drm_dev = drm_dev;

>   

>   	ret = rockchip_dp_drm_create_encoder(dp);

> @@ -344,16 +338,9 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,

>   

>   	dp->plat_data.encoder = &dp->encoder;

>   

> -	dp->plat_data.dev_type = dp->data->chip_type;

> -	dp->plat_data.power_on_start = rockchip_dp_poweron_start;

> -	dp->plat_data.power_off = rockchip_dp_powerdown;

> -	dp->plat_data.get_modes = rockchip_dp_get_modes;

> -

> -	dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);

> -	if (IS_ERR(dp->adp)) {

> -		ret = PTR_ERR(dp->adp);

> +	ret = analogix_dp_bind(dp->adp, drm_dev);

> +	if (ret)

>   		goto err_cleanup_encoder;

> -	}

>   

>   	return 0;

>   err_cleanup_encoder:

> @@ -368,8 +355,6 @@ static void rockchip_dp_unbind(struct device *dev, struct device *master,

>   

>   	analogix_dp_unbind(dp->adp);

>   	dp->encoder.funcs->destroy(&dp->encoder);

> -

> -	dp->adp = ERR_PTR(-ENODEV);

>   }

>   

>   static const struct component_ops rockchip_dp_component_ops = {

> @@ -380,10 +365,15 @@ static const struct component_ops rockchip_dp_component_ops = {

>   static int rockchip_dp_probe(struct platform_device *pdev)

>   {

>   	struct device *dev = &pdev->dev;

> +	const struct rockchip_dp_chip_data *dp_data;

>   	struct drm_panel *panel = NULL;

>   	struct rockchip_dp_device *dp;

>   	int ret;

>   

> +	dp_data = of_device_get_match_data(dev);

> +	if (!dp_data)

> +		return -ENODEV;

> +

>   	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, NULL);

>   	if (ret < 0)

>   		return ret;

> @@ -394,7 +384,12 @@ static int rockchip_dp_probe(struct platform_device *pdev)

>   

>   	dp->dev = dev;

>   	dp->adp = ERR_PTR(-ENODEV);

> +	dp->data = dp_data;

>   	dp->plat_data.panel = panel;

> +	dp->plat_data.dev_type = dp->data->chip_type;

> +	dp->plat_data.power_on_start = rockchip_dp_poweron_start;

> +	dp->plat_data.power_off = rockchip_dp_powerdown;

> +	dp->plat_data.get_modes = rockchip_dp_get_modes;

>   

>   	ret = rockchip_dp_of_probe(dp);

>   	if (ret < 0)

> @@ -402,12 +397,19 @@ static int rockchip_dp_probe(struct platform_device *pdev)

>   

>   	platform_set_drvdata(pdev, dp);

>   

> +	dp->adp = analogix_dp_probe(dev, &dp->plat_data);

> +	if (IS_ERR(dp->adp))

> +		return PTR_ERR(dp->adp);

> +

>   	return component_add(dev, &rockchip_dp_component_ops);

>   }

>   

>   static int rockchip_dp_remove(struct platform_device *pdev)

>   {

> +	struct rockchip_dp_device *dp = platform_get_drvdata(pdev);

> +

>   	component_del(&pdev->dev, &rockchip_dp_component_ops);

> +	analogix_dp_remove(dp->adp);

>   

>   	return 0;

>   }

> diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h

> index 7aa2f93da49c..b0dcc07334a1 100644

> --- a/include/drm/bridge/analogix_dp.h

> +++ b/include/drm/bridge/analogix_dp.h

> @@ -42,9 +42,10 @@ int analogix_dp_resume(struct analogix_dp_device *dp);

>   int analogix_dp_suspend(struct analogix_dp_device *dp);

>   

>   struct analogix_dp_device *

> -analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,

> -		 struct analogix_dp_plat_data *plat_data);

> +analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data);

> +int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device *drm_dev);

>   void analogix_dp_unbind(struct analogix_dp_device *dp);

> +void analogix_dp_remove(struct analogix_dp_device *dp);

>   

>   int analogix_dp_start_crc(struct drm_connector *connector);

>   int analogix_dp_stop_crc(struct drm_connector *connector);



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Andrzej Hajda March 12, 2020, 9:17 a.m. UTC | #2
On 10.03.2020 11:34, Marek Szyprowski wrote:
> Analogix_dp driver acquires all its resources in the ->bind() callback,
> what is a bit against the component driver based approach, where the
> driver initialization is split into a probe(), where all resources are
> gathered, and a bind(), where all objects are created and a compound
> driver is initialized.
>
> Extract all the resource related operations to analogix_dp_probe() and
> analogix_dp_remove(), then call them before/after registration of the
> device components from the main Exynos DP and Rockchip DP drivers. Also
> move the plat_data initialization to the probe() to make it available for
> the analogix_dp_probe() function.
>
> This fixes the multiple calls to the bind() of the DRM compound driver
> when the DP PHY driver is not yet loaded/probed:
>
> [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations
> exynos-drm exynos-drm: bound 14400000.fimd (ops fimd_component_ops [exynosdrm])
> exynos-drm exynos-drm: bound 14450000.mixer (ops mixer_component_ops [exynosdrm])
> exynos-dp 145b0000.dp-controller: no DP phy configured
> exynos-drm exynos-drm: failed to bind 145b0000.dp-controller (ops exynos_dp_ops [exynosdrm]): -517
> exynos-drm exynos-drm: master bind failed: -517
> ...
> [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations
> exynos-drm exynos-drm: bound 14400000.fimd (ops hdmi_enable [exynosdrm])
> exynos-drm exynos-drm: bound 14450000.mixer (ops hdmi_enable [exynosdrm])
> exynos-drm exynos-drm: bound 145b0000.dp-controller (ops hdmi_enable [exynosdrm])
> exynos-drm exynos-drm: bound 14530000.hdmi (ops hdmi_enable [exynosdrm])
> [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> Console: switching to colour frame buffer device 170x48
> exynos-drm exynos-drm: fb0: exynosdrmfb frame buffer device
> [drm] Initialized exynos 1.1.0 20180330 for exynos-drm on minor 1
> ...
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>


Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>

 --
Regards
Andrzej
Andrzej Hajda March 27, 2020, 7:44 a.m. UTC | #3
On 10.03.2020 11:34, Marek Szyprowski wrote:
> Analogix_dp driver acquires all its resources in the ->bind() callback,

> what is a bit against the component driver based approach, where the

> driver initialization is split into a probe(), where all resources are

> gathered, and a bind(), where all objects are created and a compound

> driver is initialized.

>

> Extract all the resource related operations to analogix_dp_probe() and

> analogix_dp_remove(), then call them before/after registration of the

> device components from the main Exynos DP and Rockchip DP drivers. Also

> move the plat_data initialization to the probe() to make it available for

> the analogix_dp_probe() function.

>

> This fixes the multiple calls to the bind() of the DRM compound driver

> when the DP PHY driver is not yet loaded/probed:

>

> [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations

> exynos-drm exynos-drm: bound 14400000.fimd (ops fimd_component_ops [exynosdrm])

> exynos-drm exynos-drm: bound 14450000.mixer (ops mixer_component_ops [exynosdrm])

> exynos-dp 145b0000.dp-controller: no DP phy configured

> exynos-drm exynos-drm: failed to bind 145b0000.dp-controller (ops exynos_dp_ops [exynosdrm]): -517

> exynos-drm exynos-drm: master bind failed: -517

> ...

> [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations

> exynos-drm exynos-drm: bound 14400000.fimd (ops hdmi_enable [exynosdrm])

> exynos-drm exynos-drm: bound 14450000.mixer (ops hdmi_enable [exynosdrm])

> exynos-drm exynos-drm: bound 145b0000.dp-controller (ops hdmi_enable [exynosdrm])

> exynos-drm exynos-drm: bound 14530000.hdmi (ops hdmi_enable [exynosdrm])

> [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).

> Console: switching to colour frame buffer device 170x48

> exynos-drm exynos-drm: fb0: exynosdrmfb frame buffer device

> [drm] Initialized exynos 1.1.0 20180330 for exynos-drm on minor 1

> ...

>

> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>



Queued to fixes.


Andrzej


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diff mbox series

Patch

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 9ded2cef57dd..76736fb8ed94 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1652,8 +1652,7 @@  static ssize_t analogix_dpaux_transfer(struct drm_dp_aux *aux,
 }
 
 struct analogix_dp_device *
-analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
-		 struct analogix_dp_plat_data *plat_data)
+analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct analogix_dp_device *dp;
@@ -1756,22 +1755,30 @@  analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
 					irq_flags, "analogix-dp", dp);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to request irq\n");
-		goto err_disable_pm_runtime;
+		return ERR_PTR(ret);
 	}
 	disable_irq(dp->irq);
 
+	return dp;
+}
+EXPORT_SYMBOL_GPL(analogix_dp_probe);
+
+int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device *drm_dev)
+{
+	int ret;
+
 	dp->drm_dev = drm_dev;
 	dp->encoder = dp->plat_data->encoder;
 
 	dp->aux.name = "DP-AUX";
 	dp->aux.transfer = analogix_dpaux_transfer;
-	dp->aux.dev = &pdev->dev;
+	dp->aux.dev = dp->dev;
 
 	ret = drm_dp_aux_register(&dp->aux);
 	if (ret)
-		return ERR_PTR(ret);
+		return ret;
 
-	pm_runtime_enable(dev);
+	pm_runtime_enable(dp->dev);
 
 	ret = analogix_dp_create_bridge(drm_dev, dp);
 	if (ret) {
@@ -1779,13 +1786,12 @@  analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
 		goto err_disable_pm_runtime;
 	}
 
-	return dp;
+	return 0;
 
 err_disable_pm_runtime:
+	pm_runtime_disable(dp->dev);
 
-	pm_runtime_disable(dev);
-
-	return ERR_PTR(ret);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(analogix_dp_bind);
 
@@ -1802,10 +1808,15 @@  void analogix_dp_unbind(struct analogix_dp_device *dp)
 
 	drm_dp_aux_unregister(&dp->aux);
 	pm_runtime_disable(dp->dev);
-	clk_disable_unprepare(dp->clock);
 }
 EXPORT_SYMBOL_GPL(analogix_dp_unbind);
 
+void analogix_dp_remove(struct analogix_dp_device *dp)
+{
+	clk_disable_unprepare(dp->clock);
+}
+EXPORT_SYMBOL_GPL(analogix_dp_remove);
+
 #ifdef CONFIG_PM
 int analogix_dp_suspend(struct analogix_dp_device *dp)
 {
diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c
index d23d3502ca91..5ee090691390 100644
--- a/drivers/gpu/drm/exynos/exynos_dp.c
+++ b/drivers/gpu/drm/exynos/exynos_dp.c
@@ -159,15 +159,8 @@  static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
 	struct drm_device *drm_dev = data;
 	int ret;
 
-	dp->dev = dev;
 	dp->drm_dev = drm_dev;
 
-	dp->plat_data.dev_type = EXYNOS_DP;
-	dp->plat_data.power_on_start = exynos_dp_poweron;
-	dp->plat_data.power_off = exynos_dp_poweroff;
-	dp->plat_data.attach = exynos_dp_bridge_attach;
-	dp->plat_data.get_modes = exynos_dp_get_modes;
-
 	if (!dp->plat_data.panel && !dp->ptn_bridge) {
 		ret = exynos_dp_dt_parse_panel(dp);
 		if (ret)
@@ -185,13 +178,11 @@  static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
 
 	dp->plat_data.encoder = encoder;
 
-	dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);
-	if (IS_ERR(dp->adp)) {
+	ret = analogix_dp_bind(dp->adp, dp->drm_dev);
+	if (ret)
 		dp->encoder.funcs->destroy(&dp->encoder);
-		return PTR_ERR(dp->adp);
-	}
 
-	return 0;
+	return ret;
 }
 
 static void exynos_dp_unbind(struct device *dev, struct device *master,
@@ -222,6 +213,7 @@  static int exynos_dp_probe(struct platform_device *pdev)
 	if (!dp)
 		return -ENOMEM;
 
+	dp->dev = dev;
 	/*
 	 * We just use the drvdata until driver run into component
 	 * add function, and then we would set drvdata to null, so
@@ -247,16 +239,29 @@  static int exynos_dp_probe(struct platform_device *pdev)
 
 	/* The remote port can be either a panel or a bridge */
 	dp->plat_data.panel = panel;
+	dp->plat_data.dev_type = EXYNOS_DP;
+	dp->plat_data.power_on_start = exynos_dp_poweron;
+	dp->plat_data.power_off = exynos_dp_poweroff;
+	dp->plat_data.attach = exynos_dp_bridge_attach;
+	dp->plat_data.get_modes = exynos_dp_get_modes;
 	dp->plat_data.skip_connector = !!bridge;
+
 	dp->ptn_bridge = bridge;
 
 out:
+	dp->adp = analogix_dp_probe(dev, &dp->plat_data);
+	if (IS_ERR(dp->adp))
+		return PTR_ERR(dp->adp);
+
 	return component_add(&pdev->dev, &exynos_dp_ops);
 }
 
 static int exynos_dp_remove(struct platform_device *pdev)
 {
+	struct exynos_dp_device *dp = platform_get_drvdata(pdev);
+
 	component_del(&pdev->dev, &exynos_dp_ops);
+	analogix_dp_remove(dp->adp);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
index f38f5e113c6b..ce98c08aa8b4 100644
--- a/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
@@ -325,15 +325,9 @@  static int rockchip_dp_bind(struct device *dev, struct device *master,
 			    void *data)
 {
 	struct rockchip_dp_device *dp = dev_get_drvdata(dev);
-	const struct rockchip_dp_chip_data *dp_data;
 	struct drm_device *drm_dev = data;
 	int ret;
 
-	dp_data = of_device_get_match_data(dev);
-	if (!dp_data)
-		return -ENODEV;
-
-	dp->data = dp_data;
 	dp->drm_dev = drm_dev;
 
 	ret = rockchip_dp_drm_create_encoder(dp);
@@ -344,16 +338,9 @@  static int rockchip_dp_bind(struct device *dev, struct device *master,
 
 	dp->plat_data.encoder = &dp->encoder;
 
-	dp->plat_data.dev_type = dp->data->chip_type;
-	dp->plat_data.power_on_start = rockchip_dp_poweron_start;
-	dp->plat_data.power_off = rockchip_dp_powerdown;
-	dp->plat_data.get_modes = rockchip_dp_get_modes;
-
-	dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data);
-	if (IS_ERR(dp->adp)) {
-		ret = PTR_ERR(dp->adp);
+	ret = analogix_dp_bind(dp->adp, drm_dev);
+	if (ret)
 		goto err_cleanup_encoder;
-	}
 
 	return 0;
 err_cleanup_encoder:
@@ -368,8 +355,6 @@  static void rockchip_dp_unbind(struct device *dev, struct device *master,
 
 	analogix_dp_unbind(dp->adp);
 	dp->encoder.funcs->destroy(&dp->encoder);
-
-	dp->adp = ERR_PTR(-ENODEV);
 }
 
 static const struct component_ops rockchip_dp_component_ops = {
@@ -380,10 +365,15 @@  static const struct component_ops rockchip_dp_component_ops = {
 static int rockchip_dp_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	const struct rockchip_dp_chip_data *dp_data;
 	struct drm_panel *panel = NULL;
 	struct rockchip_dp_device *dp;
 	int ret;
 
+	dp_data = of_device_get_match_data(dev);
+	if (!dp_data)
+		return -ENODEV;
+
 	ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, NULL);
 	if (ret < 0)
 		return ret;
@@ -394,7 +384,12 @@  static int rockchip_dp_probe(struct platform_device *pdev)
 
 	dp->dev = dev;
 	dp->adp = ERR_PTR(-ENODEV);
+	dp->data = dp_data;
 	dp->plat_data.panel = panel;
+	dp->plat_data.dev_type = dp->data->chip_type;
+	dp->plat_data.power_on_start = rockchip_dp_poweron_start;
+	dp->plat_data.power_off = rockchip_dp_powerdown;
+	dp->plat_data.get_modes = rockchip_dp_get_modes;
 
 	ret = rockchip_dp_of_probe(dp);
 	if (ret < 0)
@@ -402,12 +397,19 @@  static int rockchip_dp_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, dp);
 
+	dp->adp = analogix_dp_probe(dev, &dp->plat_data);
+	if (IS_ERR(dp->adp))
+		return PTR_ERR(dp->adp);
+
 	return component_add(dev, &rockchip_dp_component_ops);
 }
 
 static int rockchip_dp_remove(struct platform_device *pdev)
 {
+	struct rockchip_dp_device *dp = platform_get_drvdata(pdev);
+
 	component_del(&pdev->dev, &rockchip_dp_component_ops);
+	analogix_dp_remove(dp->adp);
 
 	return 0;
 }
diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
index 7aa2f93da49c..b0dcc07334a1 100644
--- a/include/drm/bridge/analogix_dp.h
+++ b/include/drm/bridge/analogix_dp.h
@@ -42,9 +42,10 @@  int analogix_dp_resume(struct analogix_dp_device *dp);
 int analogix_dp_suspend(struct analogix_dp_device *dp);
 
 struct analogix_dp_device *
-analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
-		 struct analogix_dp_plat_data *plat_data);
+analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data);
+int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device *drm_dev);
 void analogix_dp_unbind(struct analogix_dp_device *dp);
+void analogix_dp_remove(struct analogix_dp_device *dp);
 
 int analogix_dp_start_crc(struct drm_connector *connector);
 int analogix_dp_stop_crc(struct drm_connector *connector);