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drm/sun4i: backend: Save pointer to device tree node

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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>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Chen-Yu Tsai 2017-04-21 16:38:53 +08:00 committed by Maxime Ripard
parent da3a1c30dc
commit 2c03e2fb06
2 changed files with 3 additions and 0 deletions
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1
drivers/gpu/drm/sun4i/sun4i_backend.c
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@ -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;

2
drivers/gpu/drm/sun4i/sun4i_backend.h
View File

@ -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;