From d281c862de30381c144145a75ec1f0d5efc307ae Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens@csie.org>
Date: Fri, 21 Apr 2017 16:38:55 +0800
Subject: [PATCH] drm/sun4i: tcon: Copy ID from associated backend
The tcons and backends have a one-to-one relationship. Their IDs,
or indexes in the documentation, are also the same.
Copy the ID from the associated backend and save it in the tcon
structure. This will later be used when we add support for the
output data path muxes.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 1 +
drivers/gpu/drm/sun4i/sun4i_tcon.h | 2 ++
2 files changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index b13a7c2029df9..5d7866fce78b8 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -471,6 +471,7 @@ static int sun4i_tcon_bind(struct device *dev, struct device *master,
dev_set_drvdata(dev, tcon);
tcon->drm = drm;
tcon->dev = dev;
+ tcon->id = backend->id;
tcon->quirks = of_device_get_match_data(dev);
tcon->lcd_rst = devm_reset_control_get(dev, "lcd");
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h b/drivers/gpu/drm/sun4i/sun4i_tcon.h
index 1bda4d183eecc..d37e1e2ed60ea 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.h
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h
@@ -174,6 +174,8 @@ struct sun4i_tcon {
/* Associated crtc */
struct sun4i_crtc *crtc;
+ int id;
+
/* TCON list management */
struct list_head list;
};
--
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