diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
index bd3136a5cba5..d3529f72ca91 100644
--- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
+++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt
@@ -74,6 +74,14 @@ Required properties:
   Documentation/devicetree/bindings/media/video-interfaces.txt. The
   first port should be the input endpoints, the second one the output
 
+On the A33, some additional properties are required:
+  - reg needs to have an additional region corresponding to the SAT
+  - reg-names need to be set, with "be" and "sat"
+  - clocks and clock-names need to have a phandle to the SAT bus
+    clocks, whose name will be "sat"
+  - resets and reset-names need to have a phandle to the SAT bus
+    resets, whose name will be "sat"
+
 Display Engine Frontend
 -----------------------
 
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c
index 9bfd2e45fceb..91a702225ded 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.c
@@ -217,6 +217,51 @@ int sun4i_backend_update_layer_buffer(struct sun4i_backend *backend,
 }
 EXPORT_SYMBOL(sun4i_backend_update_layer_buffer);
 
+static int sun4i_backend_init_sat(struct device *dev) {
+	struct sun4i_backend *backend = dev_get_drvdata(dev);
+	int ret;
+
+	backend->sat_reset = devm_reset_control_get(dev, "sat");
+	if (IS_ERR(backend->sat_reset)) {
+		dev_err(dev, "Couldn't get the SAT reset line\n");
+		return PTR_ERR(backend->sat_reset);
+	}
+
+	ret = reset_control_deassert(backend->sat_reset);
+	if (ret) {
+		dev_err(dev, "Couldn't deassert the SAT reset line\n");
+		return ret;
+	}
+
+	backend->sat_clk = devm_clk_get(dev, "sat");
+	if (IS_ERR(backend->sat_clk)) {
+		dev_err(dev, "Couldn't get our SAT clock\n");
+		ret = PTR_ERR(backend->sat_clk);
+		goto err_assert_reset;
+	}
+
+	ret = clk_prepare_enable(backend->sat_clk);
+	if (ret) {
+		dev_err(dev, "Couldn't enable the SAT clock\n");
+		return ret;
+	}
+
+	return 0;
+
+err_assert_reset:
+	reset_control_assert(backend->sat_reset);
+	return ret;
+}
+
+static int sun4i_backend_free_sat(struct device *dev) {
+	struct sun4i_backend *backend = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(backend->sat_clk);
+	reset_control_assert(backend->sat_reset);
+
+	return 0;
+}
+
 static struct regmap_config sun4i_backend_regmap_config = {
 	.reg_bits	= 32,
 	.val_bits	= 32,
@@ -291,6 +336,15 @@ static int sun4i_backend_bind(struct device *dev, struct device *master,
 	}
 	clk_prepare_enable(backend->ram_clk);
 
+	if (of_device_is_compatible(dev->of_node,
+				    "allwinner,sun8i-a33-display-backend")) {
+		ret = sun4i_backend_init_sat(dev);
+		if (ret) {
+			dev_err(dev, "Couldn't init SAT resources\n");
+			goto err_disable_ram_clk;
+		}
+	}
+
 	/* Reset the registers */
 	for (i = 0x800; i < 0x1000; i += 4)
 		regmap_write(backend->regs, i, 0);
@@ -306,6 +360,8 @@ static int sun4i_backend_bind(struct device *dev, struct device *master,
 
 	return 0;
 
+err_disable_ram_clk:
+	clk_disable_unprepare(backend->ram_clk);
 err_disable_mod_clk:
 	clk_disable_unprepare(backend->mod_clk);
 err_disable_bus_clk:
@@ -320,6 +376,10 @@ static void sun4i_backend_unbind(struct device *dev, struct device *master,
 {
 	struct sun4i_backend *backend = dev_get_drvdata(dev);
 
+	if (of_device_is_compatible(dev->of_node,
+				    "allwinner,sun8i-a33-display-backend"))
+		sun4i_backend_free_sat(dev);
+
 	clk_disable_unprepare(backend->ram_clk);
 	clk_disable_unprepare(backend->mod_clk);
 	clk_disable_unprepare(backend->bus_clk);
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.h b/drivers/gpu/drm/sun4i/sun4i_backend.h
index 7070bb3434e5..e00718627748 100644
--- a/drivers/gpu/drm/sun4i/sun4i_backend.h
+++ b/drivers/gpu/drm/sun4i/sun4i_backend.h
@@ -146,6 +146,9 @@ struct sun4i_backend {
 	struct clk		*bus_clk;
 	struct clk		*mod_clk;
 	struct clk		*ram_clk;
+
+	struct clk		*sat_clk;
+	struct reset_control	*sat_reset;
 };
 
 void sun4i_backend_apply_color_correction(struct sun4i_backend *backend);
