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drm/tegra: Move IOMMU group into host1x client

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Handling of the IOMMU group attachment is common to all clients, so move
the group into the client to simplify code.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2019-02-08 14:35:13 +01:00
parent 7baa943e0b
commit aacdf19849
8 changed files with 32 additions and 40 deletions
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10
drivers/gpu/drm/tegra/vic.c
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@@ -34,7 +34,6 @@ struct vic {
void __iomem *regs;
struct tegra_drm_client client;
struct host1x_channel *channel;
struct iommu_group *group;
struct device *dev;
struct clk *clk;
struct reset_control *rst;
@@ -188,9 +187,8 @@ static int vic_init(struct host1x_client *client)
struct vic *vic = to_vic(drm);
int err;
vic->group = host1x_client_iommu_attach(client, false);
if (IS_ERR(vic->group)) {
err = PTR_ERR(vic->group);
err = host1x_client_iommu_attach(client, false);
if (err < 0) {
dev_err(vic->dev, "failed to attach to domain: %d\n", err);
return err;
}
@@ -224,7 +222,7 @@ free_syncpt:
free_channel:
host1x_channel_put(vic->channel);
detach:
host1x_client_iommu_detach(client, vic->group);
host1x_client_iommu_detach(client);
return err;
}
@@ -246,7 +244,7 @@ static int vic_exit(struct host1x_client *client)
host1x_syncpt_free(client->syncpts[0]);
host1x_channel_put(vic->channel);
host1x_client_iommu_detach(client, vic->group);
host1x_client_iommu_detach(client);
return 0;
}