video: omap: add panel driver

The previous version of am335x-fb.c contained the functionalities of two
drivers that this patch has split. It was a video type driver that used
the same registration compatible string that now registers a panel type
driver. The proof of this is that two compatible strings were referred
to within the same driver.
There are now two drivers, each with its own compatible string,
functions and API.
Furthermore, the panel driver, in addition to decoding the display
timings, is now also able to manage the backlight.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Simon Glass <sjg@chromium.org>

11 files changed, 141 insertions, 44 deletions

diff --git a/arch/arm/dts/am335x-brppt1-mmc.dts b/arch/arm/dts/am335x-brppt1-mmc.dts
index 6f91971..bd2f6c2 100644
--- a/arch/arm/dts/am335x-brppt1-mmc.dts
+++ b/arch/arm/dts/am335x-brppt1-mmc.dts
@@ -53,8 +53,6 @@
 		bkl-pwm = <&pwmbacklight>;
 		bkl-tps = <&tps_bl>;
 
-		u-boot,dm-pre-reloc;
-
 		panel-info {
 			ac-bias		= <255>;
 			ac-bias-intrpt	= <0>;
@@ -238,8 +236,19 @@
 	status = "okay";
 };
 
-&lcdc {
-	status = "disabled";
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+				status = "disabled";
+			};
+		};
+	};
 };
 
 &elm {
diff --git a/arch/arm/dts/am335x-brppt1-nand.dts b/arch/arm/dts/am335x-brppt1-nand.dts
index 9d4340f..67c6097 100644
--- a/arch/arm/dts/am335x-brppt1-nand.dts
+++ b/arch/arm/dts/am335x-brppt1-nand.dts
@@ -53,8 +53,6 @@
 		bkl-pwm = <&pwmbacklight>;
 		bkl-tps = <&tps_bl>;
 
-		u-boot,dm-pre-reloc;
-
 		panel-info {
 			ac-bias		= <255>;
 			ac-bias-intrpt	= <0>;
@@ -228,8 +226,19 @@
 	status = "disabled";
 };
 
-&lcdc {
-	status = "disabled";
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+				status = "disabled";
+			};
+		};
+	};
 };
 
 &elm {
diff --git a/arch/arm/dts/am335x-brppt1-spi.dts b/arch/arm/dts/am335x-brppt1-spi.dts
index c078af8..ce3dce2 100644
--- a/arch/arm/dts/am335x-brppt1-spi.dts
+++ b/arch/arm/dts/am335x-brppt1-spi.dts
@@ -54,8 +54,6 @@
 		bkl-pwm = <&pwmbacklight>;
 		bkl-tps = <&tps_bl>;
 
-		u-boot,dm-pre-reloc;
-
 		panel-info {
 			ac-bias		= <255>;
 			ac-bias-intrpt	= <0>;
@@ -259,8 +257,19 @@
 	status = "okay";
 };
 
-&lcdc {
-	status = "disabled";
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+				status = "disabled";
+			};
+		};
+	};
 };
 
 &elm {
diff --git a/arch/arm/dts/am335x-brsmarc1.dts b/arch/arm/dts/am335x-brsmarc1.dts
index 7e9516e..25cdb11 100644
--- a/arch/arm/dts/am335x-brsmarc1.dts
+++ b/arch/arm/dts/am335x-brsmarc1.dts
@@ -59,7 +59,6 @@
 		/*backlight = <&tps_bl>; */
 		compatible = "ti,tilcdc,panel";
 		status = "okay";
-		u-boot,dm-pre-reloc;
 
 		panel-info {
 			ac-bias		= <255>;
@@ -298,10 +297,21 @@
 	status = "okay";
 };
 
-&lcdc {
-	status = "okay";
-	ti,no-reset-on-init;
-	ti,no-idle-on-init;
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+				status = "okay";
+				ti,no-reset-on-init;
+				ti,no-idle-on-init;
+			};
+		};
+	};
 };
 
 &elm {
diff --git a/arch/arm/dts/am335x-brxre1.dts b/arch/arm/dts/am335x-brxre1.dts
index 6091a12..485c8e3 100644
--- a/arch/arm/dts/am335x-brxre1.dts
+++ b/arch/arm/dts/am335x-brxre1.dts
@@ -79,8 +79,6 @@
 
 		backlight = <&tps_bl>;
 
-		u-boot,dm-pre-reloc;
-
 		panel-info {
 			ac-bias		= <255>;
 			ac-bias-intrpt	= <0>;
@@ -254,10 +252,21 @@
 	status = "okay";
 };
 
-&lcdc {
-	status = "okay";
-	ti,no-reset-on-init;
-	ti,no-idle-on-init;
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+				status = "okay";
+				ti,no-reset-on-init;
+				ti,no-idle-on-init;
+			};
+		};
+	};
 };
 
 &elm {
diff --git a/arch/arm/dts/am335x-evm-u-boot.dtsi b/arch/arm/dts/am335x-evm-u-boot.dtsi
index 400a1d2..4cf5f99 100644
--- a/arch/arm/dts/am335x-evm-u-boot.dtsi
+++ b/arch/arm/dts/am335x-evm-u-boot.dtsi
@@ -5,13 +5,20 @@
 
 #include "am33xx-u-boot.dtsi"
 
-/ {
-	panel {
-		u-boot,dm-pre-reloc;
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+			};
+		};
 	};
 };
 
-
 &mmc3 {
 	status = "disabled";
 };
diff --git a/arch/arm/dts/am335x-evmsk-u-boot.dtsi b/arch/arm/dts/am335x-evmsk-u-boot.dtsi
index 9679833..1003f4d 100644
--- a/arch/arm/dts/am335x-evmsk-u-boot.dtsi
+++ b/arch/arm/dts/am335x-evmsk-u-boot.dtsi
@@ -7,8 +7,16 @@
 
 #include "am33xx-u-boot.dtsi"
 
-/ {
-	panel {
-		u-boot,dm-pre-reloc;
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+			};
+		};
 	};
 };
diff --git a/arch/arm/dts/am335x-guardian-u-boot.dtsi b/arch/arm/dts/am335x-guardian-u-boot.dtsi
index c866ce8..986f58e 100644
--- a/arch/arm/dts/am335x-guardian-u-boot.dtsi
+++ b/arch/arm/dts/am335x-guardian-u-boot.dtsi
@@ -10,16 +10,26 @@
 	ocp {
 		u-boot,dm-pre-reloc;
 	};
-
-	panel {
-		u-boot,dm-pre-reloc;
-	};
 };
 
 &l4_wkup {
 	u-boot,dm-pre-reloc;
 };
 
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+			};
+		};
+	};
+};
+
 &mmc1 {
 	u-boot,dm-pre-reloc;
 };
diff --git a/arch/arm/dts/am335x-pdu001-u-boot.dtsi b/arch/arm/dts/am335x-pdu001-u-boot.dtsi
index 4f4fc41..686a152 100644
--- a/arch/arm/dts/am335x-pdu001-u-boot.dtsi
+++ b/arch/arm/dts/am335x-pdu001-u-boot.dtsi
@@ -9,16 +9,26 @@
 	ocp {
 		u-boot,dm-pre-reloc;
 	};
-
-	panel {
-		u-boot,dm-pre-reloc;
-	};
 };
 
 &l4_wkup {
 	u-boot,dm-pre-reloc;
 };
 
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+			};
+		};
+	};
+};
+
 &scm {
 	u-boot,dm-pre-reloc;
 };
diff --git a/arch/arm/dts/am335x-pxm50-u-boot.dtsi b/arch/arm/dts/am335x-pxm50-u-boot.dtsi
index 65ed948..e5af9fd 100644
--- a/arch/arm/dts/am335x-pxm50-u-boot.dtsi
+++ b/arch/arm/dts/am335x-pxm50-u-boot.dtsi
@@ -7,8 +7,16 @@
 
 #include "am33xx-u-boot.dtsi"
 
-/ {
-	panel {
-		u-boot,dm-pre-reloc;
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+			};
+		};
 	};
 };
diff --git a/arch/arm/dts/am335x-rut-u-boot.dtsi b/arch/arm/dts/am335x-rut-u-boot.dtsi
index b16f75a..a38c2dc 100644
--- a/arch/arm/dts/am335x-rut-u-boot.dtsi
+++ b/arch/arm/dts/am335x-rut-u-boot.dtsi
@@ -7,8 +7,16 @@
 
 #include "am33xx-u-boot.dtsi"
 
-/ {
-	panel {
-		u-boot,dm-pre-reloc;
+&l4_per {
+
+	segment@300000 {
+
+		target-module@e000 {
+			u-boot,dm-pre-reloc;
+
+			lcdc: lcdc@0 {
+				u-boot,dm-pre-reloc;
+			};
+		};
 	};
 };