Messages in this thread Patch in this message | | | From | Tomeu Vizoso <> | Subject | [RFC PATCH 11/16] Add DEVM_TEGRA_DPAUX() | Date | Tue, 21 Jul 2015 15:50:53 +0200 |
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Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> ---
drivers/gpu/drm/tegra/dpaux.c | 24 ++++++++++++++++++++++++ drivers/gpu/drm/tegra/drm.h | 9 +++++++++ 2 files changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c index 07b26972f487..512322c58c43 100644 --- a/drivers/gpu/drm/tegra/dpaux.c +++ b/drivers/gpu/drm/tegra/dpaux.c @@ -569,3 +569,27 @@ int tegra_dpaux_train(struct tegra_dpaux *dpaux, struct drm_dp_link *link, return 0; } + +int devm_acquire_tegra_dpaux(struct device *dev, + const struct devm_resource *resource) +{ + struct device_node *np; + struct tegra_dpaux *dpaux, **dpauxp; + + np = of_parse_phandle(dev->of_node, resource->name, 0); + if (!np) + return 0; + + dpaux = tegra_dpaux_find_by_of_node(np); + of_node_put(np); + + dev_warn(dev, "dpaux device '%s' not probed yet\n", of_node_full_name(np)); + + if (!dpaux) + return -EPROBE_DEFER; + + dpauxp = dev_get_drvdata(dev) + resource->offset; + *dpauxp = dpaux; + + return 0; +} diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h index 659b2fcc986d..70930d262caf 100644 --- a/drivers/gpu/drm/tegra/drm.h +++ b/drivers/gpu/drm/tegra/drm.h @@ -250,6 +250,15 @@ int tegra_dpaux_prepare(struct tegra_dpaux *dpaux, u8 encoding); int tegra_dpaux_train(struct tegra_dpaux *dpaux, struct drm_dp_link *link, u8 pattern); +int devm_acquire_tegra_dpaux(struct device *dev, + const struct devm_resource *resource); + +#define DEVM_TEGRA_DPAUX(_struct, _member, _name) { \ + .initfunc = devm_acquire_tegra_dpaux, \ + .offset = offsetof_t(struct _struct, _member, struct tegra_dpaux *),\ + .name = _name, \ +} + /* from fb.c */ struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer, unsigned int index); -- 2.4.3
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