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>
mariux64 · May 14, 2017 · d281c86 · d281c86
1 parent b317fa3
commit d281c86
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diff --git 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
@@ -174,6 +174,8 @@ struct sun4i_tcon {
 	/* Associated crtc */
 	struct sun4i_crtc		*crtc;
 
+	int				id;
+
 	/* TCON list management */
 	struct list_head		list;
 };