Save a pointer to the backend's underlying device tree node in its data structure. This will be used later for downstream tcons to find and match their respective upstream backends.
Signed-off-by: Chen-Yu Tsai wens@csie.org --- drivers/gpu/drm/sun4i/sun4i_backend.c | 1 + drivers/gpu/drm/sun4i/sun4i_backend.h | 2 ++ 2 files changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c index 0b4222312e49..e9eca057ff35 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.c +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c @@ -352,6 +352,7 @@ static int sun4i_backend_bind(struct device *dev, struct device *master, return -ENOMEM; dev_set_drvdata(dev, backend);
+ backend->node = dev->of_node; backend->id = sun4i_backend_of_get_id(dev->of_node); if (backend->id < 0) return backend->id; diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.h b/drivers/gpu/drm/sun4i/sun4i_backend.h index 45b7fc110590..6327a2985fe6 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.h +++ b/drivers/gpu/drm/sun4i/sun4i_backend.h @@ -15,6 +15,7 @@
#include <linux/clk.h> #include <linux/list.h> +#include <linux/of.h> #include <linux/regmap.h> #include <linux/reset.h>
@@ -140,6 +141,7 @@ #define SUN4I_BACKEND_PIPE_OFF(p) (0x5000 + (0x400 * (p)))
struct sun4i_backend { + struct device_node *node; struct regmap *regs;
struct reset_control *reset;