The patch titled
nouveau: change the backlight parent device to the connector, not the PCI dev
has been added to the -mm tree. Its filename is
nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev.patch
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------------------------------------------------------
Subject: nouveau: change the backlight parent device to the connector, not the PCI dev
From: Matthew Garrett <mjg@xxxxxxxxxx>
We may eventually end up with per-connector backlights, especially with
ddcci devices. Make sure that the parent node for the backlight device is
the connector rather than the PCI device.
Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx>
Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Alex Deucher <alexdeucher@xxxxxxxxx>
Acked-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_backlight.c | 24 ++++++++++--------
drivers/gpu/drm/nouveau/nouveau_connector.c | 9 ++++++
drivers/gpu/drm/nouveau/nouveau_drv.h | 8 +++---
drivers/gpu/drm/nouveau/nouveau_state.c | 6 ----
4 files changed, 27 insertions(+), 20 deletions(-)
diff -puN drivers/gpu/drm/nouveau/nouveau_backlight.c~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev drivers/gpu/drm/nouveau/nouveau_backlight.c
--- a/drivers/gpu/drm/nouveau/nouveau_backlight.c~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev
+++ a/drivers/gpu/drm/nouveau/nouveau_backlight.c
@@ -88,10 +88,11 @@ static const struct backlight_ops nv50_b
.update_status = nv50_set_intensity,
};
-static int nouveau_nv40_backlight_init(struct drm_device *dev)
+static int nouveau_nv40_backlight_init(struct drm_connector *connector)
{
- struct backlight_properties props;
+ struct drm_device *dev = connector->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct backlight_properties props;
struct backlight_device *bd;
if (!(nv_rd32(dev, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK))
@@ -100,7 +101,7 @@ static int nouveau_nv40_backlight_init(s
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW;
props.max_brightness = 31;
- bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
+ bd = backlight_device_register("nv_backlight", &connector->kdev, dev,
&nv40_bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
@@ -112,10 +113,11 @@ static int nouveau_nv40_backlight_init(s
return 0;
}
-static int nouveau_nv50_backlight_init(struct drm_device *dev)
+static int nouveau_nv50_backlight_init(struct drm_connector *connector)
{
- struct backlight_properties props;
+ struct drm_device *dev = connector->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct backlight_properties props;
struct backlight_device *bd;
if (!nv_rd32(dev, NV50_PDISPLAY_SOR_BACKLIGHT))
@@ -124,7 +126,7 @@ static int nouveau_nv50_backlight_init(s
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_RAW;
props.max_brightness = 1025;
- bd = backlight_device_register("nv_backlight", &dev->pdev->dev, dev,
+ bd = backlight_device_register("nv_backlight", &connector->kdev, dev,
&nv50_bl_ops, &props);
if (IS_ERR(bd))
return PTR_ERR(bd);
@@ -135,8 +137,9 @@ static int nouveau_nv50_backlight_init(s
return 0;
}
-int nouveau_backlight_init(struct drm_device *dev)
+int nouveau_backlight_init(struct drm_connector *connector)
{
+ struct drm_device *dev = connector->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
#ifdef CONFIG_ACPI
@@ -149,9 +152,9 @@ int nouveau_backlight_init(struct drm_de
switch (dev_priv->card_type) {
case NV_40:
- return nouveau_nv40_backlight_init(dev);
+ return nouveau_nv40_backlight_init(connector);
case NV_50:
- return nouveau_nv50_backlight_init(dev);
+ return nouveau_nv50_backlight_init(connector);
default:
break;
}
@@ -159,8 +162,9 @@ int nouveau_backlight_init(struct drm_de
return 0;
}
-void nouveau_backlight_exit(struct drm_device *dev)
+void nouveau_backlight_exit(struct drm_connector *connector)
{
+ struct drm_device *dev = connector->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
if (dev_priv->backlight) {
diff -puN drivers/gpu/drm/nouveau/nouveau_connector.c~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev drivers/gpu/drm/nouveau/nouveau_connector.c
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev
+++ a/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -116,6 +116,10 @@ nouveau_connector_destroy(struct drm_con
nouveau_connector_hotplug, connector);
}
+ if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
+ connector->connector_type == DRM_MODE_CONNECTOR_eDP)
+ nouveau_backlight_exit(connector);
+
kfree(nv_connector->edid);
drm_sysfs_connector_remove(connector);
drm_connector_cleanup(connector);
@@ -893,6 +897,11 @@ nouveau_connector_create(struct drm_devi
}
drm_sysfs_connector_add(connector);
+
+ if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS ||
+ connector->connector_type == DRM_MODE_CONNECTOR_eDP)
+ nouveau_backlight_init(connector);
+
dcb->drm = connector;
return dcb->drm;
diff -puN drivers/gpu/drm/nouveau/nouveau_drv.h~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev drivers/gpu/drm/nouveau/nouveau_drv.h
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev
+++ a/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -1000,15 +1000,15 @@ static inline int nouveau_acpi_edid(stru
/* nouveau_backlight.c */
#ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
-extern int nouveau_backlight_init(struct drm_device *);
-extern void nouveau_backlight_exit(struct drm_device *);
+extern int nouveau_backlight_init(struct drm_connector *);
+extern void nouveau_backlight_exit(struct drm_connector *);
#else
-static inline int nouveau_backlight_init(struct drm_device *dev)
+static inline int nouveau_backlight_init(struct drm_connector *dev)
{
return 0;
}
-static inline void nouveau_backlight_exit(struct drm_device *dev) { }
+static inline void nouveau_backlight_exit(struct drm_connector *dev) { }
#endif
/* nouveau_bios.c */
diff -puN drivers/gpu/drm/nouveau/nouveau_state.c~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev drivers/gpu/drm/nouveau/nouveau_state.c
--- a/drivers/gpu/drm/nouveau/nouveau_state.c~nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev
+++ a/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -738,10 +738,6 @@ nouveau_card_init(struct drm_device *dev
goto out_fence;
}
- ret = nouveau_backlight_init(dev);
- if (ret)
- NV_ERROR(dev, "Error %d registering backlight\n", ret);
-
nouveau_fbcon_init(dev);
drm_kms_helper_poll_init(dev);
return 0;
@@ -793,8 +789,6 @@ static void nouveau_card_takedown(struct
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_engine *engine = &dev_priv->engine;
- nouveau_backlight_exit(dev);
-
if (!engine->graph.accel_blocked) {
nouveau_fence_fini(dev);
nouveau_channel_put_unlocked(&dev_priv->channel);
_
Patches currently in -mm which might be from mjg@xxxxxxxxxx are
acerhdf-add-support-for-aspire-1410-bios-v13314.patch
backlight-add-backlight-type.patch
backlight-add-backlight-type-fix.patch
i915-add-native-backlight-control.patch
radeon-expose-backlight-class-device-for-legacy-lvds-encoder.patch
radeon-expose-backlight-class-device-for-legacy-lvds-encoder-update.patch
nouveau-change-the-backlight-parent-device-to-the-connector-not-the-pci-dev.patch
acpi-tie-acpi-backlight-devices-to-pci-devices-if-possible.patch
mbp_nvidia_bl-remove-dmi-dependency.patch
mbp_nvidia_bl-check-that-the-backlight-control-functions.patch
mbp_nvidia_bl-rename-to-apple_bl.patch
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