Add a simple-framebuffer node for U-Boot to further fill and activate.

Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

Changes in v2:
- Fix the warnings:
  (ranges_format): /chosen:ranges: empty "ranges" property but its #address-cells (1) differs from / (2)
  (ranges_format): /chosen:ranges: empty "ranges" property but its #size-cells (1) differs from / (2)
  by setting both #address-cells and #size-cells to 2.

 .../freescale/imx8mn-bsh-smm-s2-display.dtsi  | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-display.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-display.dtsi
index 7675583a6b67..98dec3c42060 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-display.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-display.dtsi
@@ -4,6 +4,34 @@
  */
 
 / {
+	chosen {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		framebuffer-panel0 {
+			compatible = "simple-framebuffer";
+			clocks = <&clk IMX8MN_CLK_DISP_PIXEL_ROOT>, /* lcdif */
+				 <&clk IMX8MN_CLK_DISP_APB_ROOT>,
+				 <&clk IMX8MN_CLK_DISP_AXI_ROOT>,
+				 <&clk IMX8MN_VIDEO_PLL1>,
+				 <&clk IMX8MN_CLK_DISP_AXI_ROOT>, /* pgc_dispmix */
+				 <&clk IMX8MN_CLK_DISP_APB_ROOT>,
+				 <&clk IMX8MN_CLK_DISP_AXI>,
+				 <&clk IMX8MN_CLK_DISP_APB>,
+				 <&clk IMX8MN_SYS_PLL2_1000M>,
+				 <&clk IMX8MN_SYS_PLL1_800M>,
+				 <&clk IMX8MN_CLK_DSI_CORE>, /* mipi_disi */
+				 <&clk IMX8MN_CLK_DSI_PHY_REF>;
+
+			power-domains = <&disp_blk_ctrl IMX8MN_DISPBLK_PD_LCDIF>,
+					<&disp_blk_ctrl IMX8MN_DISPBLK_PD_MIPI_DSI>;
+			dvdd-supply = <&reg_3v3_dvdd>;
+			avdd-supply = <&reg_v3v3_avdd>;
+			status = "disabled";
+		};
+	};
+
 	backlight: backlight {
 		compatible = "pwm-backlight";
 		pwms = <&pwm1 0 700000 0>;	/* 700000 ns = 1337Hz */
-- 
2.43.0