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Commit da5fbcb1 authored by Linus Walleij's avatar Linus Walleij Committed by Arnd Bergmann
Browse files

ARM: dts: Update the NSPIRE DTS files for DRM 

The DRM subsystem graphics drivers require more granular
definition of the connection between display drivers and
panels, and a proper panel compatible. This utilizes the
bindings merged to the DRM subsystem to properly define
the display on the NSPIRE devices.

We also do away with the undocumented DT binding
"lcd-type".

We add both the clocks to the CLCD block so the driver
have full control over its clocking.

Link: https://lore.kernel.org/r/20190810074230.6492-1-linus.walleij@linaro.org


Cc: Daniel Tang <dt.tangr@gmail.com>
Cc: Fabian Vogt <fabian@ritter-vogt.de>
Tested-by: default avatarFabian Vogt <fabian@ritter-vogt.de>
Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent c08b5984

arch/arm/boot/dts/nspire-classic.dtsi

+14 −1
Original line number Diff line number Diff line
@@ -8,7 +8,11 @@ 
/include/ "nspire.dtsi"



&lcd {

	lcd-type = "classic";

	port {

		clcd_pads: endpoint {

			remote-endpoint = <&panel_in>;

		};

	};

};



&fast_timer {
@@ -69,6 +73,15 @@ 
			#interrupt-cells = <1>;

		};

	};



	panel {

		compatible = "ti,nspire-classic-lcd-panel";

		port {

			panel_in: endpoint {

				remote-endpoint = <&clcd_pads>;

			};

		};

	};

	chosen {

		bootargs = "debug earlyprintk console=tty0 console=ttyS0,115200n8 root=/dev/ram0";

	};

arch/arm/boot/dts/nspire-cx.dts

+14 −1
Original line number Diff line number Diff line
@@ -9,7 +9,11 @@ 
/include/ "nspire.dtsi"



&lcd {

	lcd-type = "cx";

	port {

		clcd_pads: endpoint {

			remote-endpoint = <&panel_in>;

		};

	};

};



&fast_timer {
@@ -106,6 +110,15 @@ 
			};

		};

	};



	panel {

		compatible = "ti,nspire-cx-lcd-panel";

		port {

			panel_in: endpoint {

				remote-endpoint = <&clcd_pads>;

			};

		};

	};

	chosen {

		bootargs = "debug earlyprintk console=tty0 console=ttyAMA0,115200n8 root=/dev/ram0";

	};

arch/arm/boot/dts/nspire.dtsi

+8 −2
Original line number Diff line number Diff line
@@ -95,8 +95,14 @@ 
			reg = <0xC0000000 0x1000>;

			interrupts = <21>;



			clocks = <&apb_pclk>;

			clock-names = "apb_pclk";

			/*

			 * We assume the same clock is fed to APB and CLCDCLK.

			 * There is some code to scale the clock down by a factor

			 * 48 for the display so likely the frequency to the

			 * display is 1MHz and the CLCDCLK is 48 MHz.

			 */

			clocks = <&apb_pclk>, <&apb_pclk>;

			clock-names = "clcdclk", "apb_pclk";

		};



		adc: adc@C4000000 {