MLK-14283: dts: fix DE polarity for lcdif

For imx7d, the DTS definition (imx7d-sdb.dts) is used by default, and this
is the one used when plugging a HDMI device. Since HDMI works with DE
polarity as active high, but the MIPI DSI works with active low, this
patch sets the DE polarity to active high in imx7-sdb.dts and moves the
active low polarity to imx7d-sdb-mipi-dsi.dts.

Signed-off-by: Robert Chiras <robert.chiras@nxp.com>

diff --git a/arch/arm/boot/dts/imx7d-sdb-mipi-dsi.dts b/arch/arm/boot/dts/imx7d-sdb-mipi-dsi.dts
index bbfca36..55f44f7 100644 (file)
--- a/arch/arm/boot/dts/imx7d-sdb-mipi-dsi.dts
+++ b/arch/arm/boot/dts/imx7d-sdb-mipi-dsi.dts
@@ -21,6 +21,10 @@
        disp-dev = "mipi_dsi_samsung";
 };
 
+&timing0 {
+       de-active = <0>;
+};
+
 &mipi_dsi {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_mipi_dsi_reset>;

diff --git a/arch/arm/boot/dts/imx7d-sdb.dts b/arch/arm/boot/dts/imx7d-sdb.dts
index e787ac1..8dfa52e 100644 (file)
--- a/arch/arm/boot/dts/imx7d-sdb.dts
+++ b/arch/arm/boot/dts/imx7d-sdb.dts
@@ -620,7 +620,7 @@
                                vsync-len = <10>;
                                hsync-active = <0>;
                                vsync-active = <0>;
-                               de-active = <0>;
+                               de-active = <1>;
                                pixelclk-active = <0>;
                        };
                };