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Subject[PATCH v2 5/9] drm/sun4i: backend: Save pointer to device tree node
Date
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;
--
2.11.0
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