Commit 83a19677 authored by Marek Szyprowski's avatar Marek Szyprowski Committed by Andrzej Hajda

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

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: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Acked-by: default avatarAndy Yan <andy.yan@rock-chips.com>
Reviewed-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200310103427.26048-1-m.szyprowski@samsung.com
parent 47f7826c
...@@ -1636,8 +1636,7 @@ static ssize_t analogix_dpaux_transfer(struct drm_dp_aux *aux, ...@@ -1636,8 +1636,7 @@ static ssize_t analogix_dpaux_transfer(struct drm_dp_aux *aux,
} }
struct analogix_dp_device * struct analogix_dp_device *
analogix_dp_bind(struct device *dev, struct drm_device *drm_dev, analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data)
struct analogix_dp_plat_data *plat_data)
{ {
struct platform_device *pdev = to_platform_device(dev); struct platform_device *pdev = to_platform_device(dev);
struct analogix_dp_device *dp; struct analogix_dp_device *dp;
...@@ -1740,22 +1739,30 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev, ...@@ -1740,22 +1739,30 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
irq_flags, "analogix-dp", dp); irq_flags, "analogix-dp", dp);
if (ret) { if (ret) {
dev_err(&pdev->dev, "failed to request irq\n"); dev_err(&pdev->dev, "failed to request irq\n");
goto err_disable_pm_runtime; return ERR_PTR(ret);
} }
disable_irq(dp->irq); 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->drm_dev = drm_dev;
dp->encoder = dp->plat_data->encoder; dp->encoder = dp->plat_data->encoder;
dp->aux.name = "DP-AUX"; dp->aux.name = "DP-AUX";
dp->aux.transfer = analogix_dpaux_transfer; dp->aux.transfer = analogix_dpaux_transfer;
dp->aux.dev = &pdev->dev; dp->aux.dev = dp->dev;
ret = drm_dp_aux_register(&dp->aux); ret = drm_dp_aux_register(&dp->aux);
if (ret) 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); ret = analogix_dp_create_bridge(drm_dev, dp);
if (ret) { if (ret) {
...@@ -1763,13 +1770,12 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev, ...@@ -1763,13 +1770,12 @@ analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
goto err_disable_pm_runtime; goto err_disable_pm_runtime;
} }
return dp; return 0;
err_disable_pm_runtime: err_disable_pm_runtime:
pm_runtime_disable(dp->dev);
pm_runtime_disable(dev); return ret;
return ERR_PTR(ret);
} }
EXPORT_SYMBOL_GPL(analogix_dp_bind); EXPORT_SYMBOL_GPL(analogix_dp_bind);
...@@ -1786,10 +1792,15 @@ void analogix_dp_unbind(struct analogix_dp_device *dp) ...@@ -1786,10 +1792,15 @@ void analogix_dp_unbind(struct analogix_dp_device *dp)
drm_dp_aux_unregister(&dp->aux); drm_dp_aux_unregister(&dp->aux);
pm_runtime_disable(dp->dev); pm_runtime_disable(dp->dev);
clk_disable_unprepare(dp->clock);
} }
EXPORT_SYMBOL_GPL(analogix_dp_unbind); 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 #ifdef CONFIG_PM
int analogix_dp_suspend(struct analogix_dp_device *dp) int analogix_dp_suspend(struct analogix_dp_device *dp)
{ {
......
...@@ -158,15 +158,8 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data) ...@@ -158,15 +158,8 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
struct drm_device *drm_dev = data; struct drm_device *drm_dev = data;
int ret; int ret;
dp->dev = dev;
dp->drm_dev = drm_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) { if (!dp->plat_data.panel && !dp->ptn_bridge) {
ret = exynos_dp_dt_parse_panel(dp); ret = exynos_dp_dt_parse_panel(dp);
if (ret) if (ret)
...@@ -184,13 +177,11 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data) ...@@ -184,13 +177,11 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
dp->plat_data.encoder = encoder; dp->plat_data.encoder = encoder;
dp->adp = analogix_dp_bind(dev, dp->drm_dev, &dp->plat_data); ret = analogix_dp_bind(dp->adp, dp->drm_dev);
if (IS_ERR(dp->adp)) { if (ret)
dp->encoder.funcs->destroy(&dp->encoder); 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, static void exynos_dp_unbind(struct device *dev, struct device *master,
...@@ -221,6 +212,7 @@ static int exynos_dp_probe(struct platform_device *pdev) ...@@ -221,6 +212,7 @@ static int exynos_dp_probe(struct platform_device *pdev)
if (!dp) if (!dp)
return -ENOMEM; return -ENOMEM;
dp->dev = dev;
/* /*
* We just use the drvdata until driver run into component * We just use the drvdata until driver run into component
* add function, and then we would set drvdata to null, so * add function, and then we would set drvdata to null, so
...@@ -246,16 +238,29 @@ static int exynos_dp_probe(struct platform_device *pdev) ...@@ -246,16 +238,29 @@ static int exynos_dp_probe(struct platform_device *pdev)
/* The remote port can be either a panel or a bridge */ /* The remote port can be either a panel or a bridge */
dp->plat_data.panel = panel; 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->plat_data.skip_connector = !!bridge;
dp->ptn_bridge = bridge; dp->ptn_bridge = bridge;
out: 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); return component_add(&pdev->dev, &exynos_dp_ops);
} }
static int exynos_dp_remove(struct platform_device *pdev) 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); component_del(&pdev->dev, &exynos_dp_ops);
analogix_dp_remove(dp->adp);
return 0; return 0;
} }
......
...@@ -325,15 +325,9 @@ static int rockchip_dp_bind(struct device *dev, struct device *master, ...@@ -325,15 +325,9 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
void *data) void *data)
{ {
struct rockchip_dp_device *dp = dev_get_drvdata(dev); struct rockchip_dp_device *dp = dev_get_drvdata(dev);
const struct rockchip_dp_chip_data *dp_data;
struct drm_device *drm_dev = data; struct drm_device *drm_dev = data;
int ret; int ret;
dp_data = of_device_get_match_data(dev);
if (!dp_data)
return -ENODEV;
dp->data = dp_data;
dp->drm_dev = drm_dev; dp->drm_dev = drm_dev;
ret = rockchip_dp_drm_create_encoder(dp); ret = rockchip_dp_drm_create_encoder(dp);
...@@ -344,16 +338,9 @@ static int rockchip_dp_bind(struct device *dev, struct device *master, ...@@ -344,16 +338,9 @@ static int rockchip_dp_bind(struct device *dev, struct device *master,
dp->plat_data.encoder = &dp->encoder; dp->plat_data.encoder = &dp->encoder;
dp->plat_data.dev_type = dp->data->chip_type; ret = analogix_dp_bind(dp->adp, drm_dev);
dp->plat_data.power_on_start = rockchip_dp_poweron_start; if (ret)
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);
goto err_cleanup_encoder; goto err_cleanup_encoder;
}
return 0; return 0;
err_cleanup_encoder: err_cleanup_encoder:
...@@ -368,8 +355,6 @@ static void rockchip_dp_unbind(struct device *dev, struct device *master, ...@@ -368,8 +355,6 @@ static void rockchip_dp_unbind(struct device *dev, struct device *master,
analogix_dp_unbind(dp->adp); analogix_dp_unbind(dp->adp);
dp->encoder.funcs->destroy(&dp->encoder); dp->encoder.funcs->destroy(&dp->encoder);
dp->adp = ERR_PTR(-ENODEV);
} }
static const struct component_ops rockchip_dp_component_ops = { static const struct component_ops rockchip_dp_component_ops = {
...@@ -380,10 +365,15 @@ 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) static int rockchip_dp_probe(struct platform_device *pdev)
{ {
struct device *dev = &pdev->dev; struct device *dev = &pdev->dev;
const struct rockchip_dp_chip_data *dp_data;
struct drm_panel *panel = NULL; struct drm_panel *panel = NULL;
struct rockchip_dp_device *dp; struct rockchip_dp_device *dp;
int ret; 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); ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, NULL);
if (ret < 0) if (ret < 0)
return ret; return ret;
...@@ -394,7 +384,12 @@ static int rockchip_dp_probe(struct platform_device *pdev) ...@@ -394,7 +384,12 @@ static int rockchip_dp_probe(struct platform_device *pdev)
dp->dev = dev; dp->dev = dev;
dp->adp = ERR_PTR(-ENODEV); dp->adp = ERR_PTR(-ENODEV);
dp->data = dp_data;
dp->plat_data.panel = panel; 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); ret = rockchip_dp_of_probe(dp);
if (ret < 0) if (ret < 0)
...@@ -402,12 +397,19 @@ static int rockchip_dp_probe(struct platform_device *pdev) ...@@ -402,12 +397,19 @@ static int rockchip_dp_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, dp); 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); return component_add(dev, &rockchip_dp_component_ops);
} }
static int rockchip_dp_remove(struct platform_device *pdev) 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); component_del(&pdev->dev, &rockchip_dp_component_ops);
analogix_dp_remove(dp->adp);
return 0; return 0;
} }
......
...@@ -42,9 +42,10 @@ int analogix_dp_resume(struct analogix_dp_device *dp); ...@@ -42,9 +42,10 @@ int analogix_dp_resume(struct analogix_dp_device *dp);
int analogix_dp_suspend(struct analogix_dp_device *dp); int analogix_dp_suspend(struct analogix_dp_device *dp);
struct analogix_dp_device * struct analogix_dp_device *
analogix_dp_bind(struct device *dev, struct drm_device *drm_dev, analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data);
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_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_start_crc(struct drm_connector *connector);
int analogix_dp_stop_crc(struct drm_connector *connector); int analogix_dp_stop_crc(struct drm_connector *connector);
......
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