gpu: host1x: Rename "parent" to "host"

Rename the host1x clients' parent to "host" because that more closely
describes what it is. The parent can be confused with the parent device
in terms of the device hierarchy. Subsequent patches will add a new
member that refers to the parent in that hierarchy.

Signed-off-by: Thierry Reding <treding@nvidia.com>

12 files changed, 23 insertions, 23 deletions

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index 714af052fbef..471bdf504df1 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1996,7 +1996,7 @@ static bool tegra_dc_has_window_groups(struct tegra_dc *dc)
 
 static int tegra_dc_init(struct host1x_client *client)
 {
-	struct drm_device *drm = dev_get_drvdata(client->parent);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	unsigned long flags = HOST1X_SYNCPT_CLIENT_MANAGED;
 	struct tegra_dc *dc = host1x_client_to_dc(client);
 	struct tegra_drm *tegra = drm->dev_private;
@@ -2077,9 +2077,9 @@ static int tegra_dc_init(struct host1x_client *client)
 
 	/*
 	 * Inherit the DMA parameters (such as maximum segment size) from the
-	 * parent device.
+	 * parent host1x device.
 	 */
-	client->dev->dma_parms = client->parent->dma_parms;
+	client->dev->dma_parms = client->host->dma_parms;
 
 	return 0;
 
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index f455ce71e85d..aa9e49f04988 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -905,7 +905,7 @@ int tegra_drm_unregister_client(struct tegra_drm *tegra,
 int host1x_client_iommu_attach(struct host1x_client *client)
 {
 	struct iommu_domain *domain = iommu_get_domain_for_dev(client->dev);
-	struct drm_device *drm = dev_get_drvdata(client->parent);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	struct tegra_drm *tegra = drm->dev_private;
 	struct iommu_group *group = NULL;
 	int err;
@@ -941,7 +941,7 @@ int host1x_client_iommu_attach(struct host1x_client *client)
 
 void host1x_client_iommu_detach(struct host1x_client *client)
 {
-	struct drm_device *drm = dev_get_drvdata(client->parent);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	struct tegra_drm *tegra = drm->dev_private;
 	struct iommu_domain *domain;
 
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index a5d47e301c5f..ec475d022fa0 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -1030,7 +1030,7 @@ static const struct drm_encoder_helper_funcs tegra_dsi_encoder_helper_funcs = {
 
 static int tegra_dsi_init(struct host1x_client *client)
 {
-	struct drm_device *drm = dev_get_drvdata(client->parent);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	struct tegra_dsi *dsi = host1x_client_to_dsi(client);
 	int err;
 
diff --git a/drivers/gpu/drm/tegra/gr2d.c b/drivers/gpu/drm/tegra/gr2d.c
index 1fc4e56c7cc5..48363f744bb9 100644
--- a/drivers/gpu/drm/tegra/gr2d.c
+++ b/drivers/gpu/drm/tegra/gr2d.c
@@ -34,7 +34,7 @@ static inline struct gr2d *to_gr2d(struct tegra_drm_client *client)
 static int gr2d_init(struct host1x_client *client)
 {
 	struct tegra_drm_client *drm = host1x_to_drm_client(client);
-	struct drm_device *dev = dev_get_drvdata(client->parent);
+	struct drm_device *dev = dev_get_drvdata(client->host);
 	unsigned long flags = HOST1X_SYNCPT_HAS_BASE;
 	struct gr2d *gr2d = to_gr2d(drm);
 	int err;
@@ -76,7 +76,7 @@ put:
 static int gr2d_exit(struct host1x_client *client)
 {
 	struct tegra_drm_client *drm = host1x_to_drm_client(client);
-	struct drm_device *dev = dev_get_drvdata(client->parent);
+	struct drm_device *dev = dev_get_drvdata(client->host);
 	struct tegra_drm *tegra = dev->dev_private;
 	struct gr2d *gr2d = to_gr2d(drm);
 	int err;
diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c
index 24fae0f64032..c0a528be0369 100644
--- a/drivers/gpu/drm/tegra/gr3d.c
+++ b/drivers/gpu/drm/tegra/gr3d.c
@@ -43,7 +43,7 @@ static inline struct gr3d *to_gr3d(struct tegra_drm_client *client)
 static int gr3d_init(struct host1x_client *client)
 {
 	struct tegra_drm_client *drm = host1x_to_drm_client(client);
-	struct drm_device *dev = dev_get_drvdata(client->parent);
+	struct drm_device *dev = dev_get_drvdata(client->host);
 	unsigned long flags = HOST1X_SYNCPT_HAS_BASE;
 	struct gr3d *gr3d = to_gr3d(drm);
 	int err;
@@ -85,7 +85,7 @@ put:
 static int gr3d_exit(struct host1x_client *client)
 {
 	struct tegra_drm_client *drm = host1x_to_drm_client(client);
-	struct drm_device *dev = dev_get_drvdata(client->parent);
+	struct drm_device *dev = dev_get_drvdata(client->host);
 	struct gr3d *gr3d = to_gr3d(drm);
 	int err;
 
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index 50269ffbcb6b..38bf1d16095f 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -1424,8 +1424,8 @@ static const struct drm_encoder_helper_funcs tegra_hdmi_encoder_helper_funcs = {
 
 static int tegra_hdmi_init(struct host1x_client *client)
 {
-	struct drm_device *drm = dev_get_drvdata(client->parent);
 	struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	int err;
 
 	hdmi->output.dev = client->dev;
diff --git a/drivers/gpu/drm/tegra/hub.c b/drivers/gpu/drm/tegra/hub.c
index 47d985ac7cd7..7d9e1309be3b 100644
--- a/drivers/gpu/drm/tegra/hub.c
+++ b/drivers/gpu/drm/tegra/hub.c
@@ -705,7 +705,7 @@ void tegra_display_hub_atomic_commit(struct drm_device *drm,
 static int tegra_display_hub_init(struct host1x_client *client)
 {
 	struct tegra_display_hub *hub = to_tegra_display_hub(client);
-	struct drm_device *drm = dev_get_drvdata(client->parent);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	struct tegra_drm *tegra = drm->dev_private;
 	struct tegra_display_hub_state *state;
 
@@ -723,7 +723,7 @@ static int tegra_display_hub_init(struct host1x_client *client)
 
 static int tegra_display_hub_exit(struct host1x_client *client)
 {
-	struct drm_device *drm = dev_get_drvdata(client->parent);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	struct tegra_drm *tegra = drm->dev_private;
 
 	drm_atomic_private_obj_fini(&tegra->hub->base);
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index a68d3b36b972..956bf5d680ad 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -3053,7 +3053,7 @@ static const struct tegra_sor_ops tegra_sor_dp_ops = {
 
 static int tegra_sor_init(struct host1x_client *client)
 {
-	struct drm_device *drm = dev_get_drvdata(client->parent);
+	struct drm_device *drm = dev_get_drvdata(client->host);
 	const struct drm_encoder_helper_funcs *helpers = NULL;
 	struct tegra_sor *sor = host1x_client_to_sor(client);
 	int connector = DRM_MODE_CONNECTOR_Unknown;
diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c
index 3526c2892ddb..ade56b860cf9 100644
--- a/drivers/gpu/drm/tegra/vic.c
+++ b/drivers/gpu/drm/tegra/vic.c
@@ -161,7 +161,7 @@ static int vic_boot(struct vic *vic)
 static int vic_init(struct host1x_client *client)
 {
 	struct tegra_drm_client *drm = host1x_to_drm_client(client);
-	struct drm_device *dev = dev_get_drvdata(client->parent);
+	struct drm_device *dev = dev_get_drvdata(client->host);
 	struct tegra_drm *tegra = dev->dev_private;
 	struct vic *vic = to_vic(drm);
 	int err;
@@ -190,9 +190,9 @@ static int vic_init(struct host1x_client *client)
 
 	/*
 	 * Inherit the DMA parameters (such as maximum segment size) from the
-	 * parent device.
+	 * parent host1x device.
 	 */
-	client->dev->dma_parms = client->parent->dma_parms;
+	client->dev->dma_parms = client->host->dma_parms;
 
 	return 0;
 
@@ -209,7 +209,7 @@ detach:
 static int vic_exit(struct host1x_client *client)
 {
 	struct tegra_drm_client *drm = host1x_to_drm_client(client);
-	struct drm_device *dev = dev_get_drvdata(client->parent);
+	struct drm_device *dev = dev_get_drvdata(client->host);
 	struct tegra_drm *tegra = dev->dev_private;
 	struct vic *vic = to_vic(drm);
 	int err;
diff --git a/drivers/gpu/host1x/bus.c b/drivers/gpu/host1x/bus.c
index 2c8559ff3481..50d500345d04 100644
--- a/drivers/gpu/host1x/bus.c
+++ b/drivers/gpu/host1x/bus.c
@@ -120,7 +120,7 @@ static void host1x_subdev_register(struct host1x_device *device,
 	mutex_lock(&device->clients_lock);
 	list_move_tail(&client->list, &device->clients);
 	list_move_tail(&subdev->list, &device->active);
-	client->parent = &device->dev;
+	client->host = &device->dev;
 	subdev->client = client;
 	mutex_unlock(&device->clients_lock);
 	mutex_unlock(&device->subdevs_lock);
@@ -156,7 +156,7 @@ static void __host1x_subdev_unregister(struct host1x_device *device,
 	 */
 	mutex_lock(&device->clients_lock);
 	subdev->client = NULL;
-	client->parent = NULL;
+	client->host = NULL;
 	list_move_tail(&subdev->list, &device->subdevs);
 	/*
 	 * XXX: Perhaps don't do this here, but rather explicitly remove it
diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c
index dd1cd0142941..fce7892d5137 100644
--- a/drivers/gpu/host1x/syncpt.c
+++ b/drivers/gpu/host1x/syncpt.c
@@ -421,7 +421,7 @@ int host1x_syncpt_init(struct host1x *host)
 struct host1x_syncpt *host1x_syncpt_request(struct host1x_client *client,
 					    unsigned long flags)
 {
-	struct host1x *host = dev_get_drvdata(client->parent->parent);
+	struct host1x *host = dev_get_drvdata(client->host->parent);
 
 	return host1x_syncpt_alloc(host, client, flags);
 }
diff --git a/include/linux/host1x.h b/include/linux/host1x.h
index 6f8d772591ba..b673d6198e05 100644
--- a/include/linux/host1x.h
+++ b/include/linux/host1x.h
@@ -33,7 +33,7 @@ struct host1x_client_ops {
 /**
  * struct host1x_client - host1x client structure
  * @list: list node for the host1x client
- * @parent: pointer to struct device representing the host1x controller
+ * @host: pointer to struct device representing the host1x controller
  * @dev: pointer to struct device backing this host1x client
  * @group: IOMMU group that this client is a member of
  * @ops: host1x client operations
@@ -44,7 +44,7 @@ struct host1x_client_ops {
  */
 struct host1x_client {
 	struct list_head list;
-	struct device *parent;
+	struct device *host;
 	struct device *dev;
 	struct iommu_group *group;