ARM: shmobile: r8a7794: alt: Enable VGA port
Subsystems (2)
PATCH v2 3/3 ARM: shmobile: r8a7794: alt: Enable VGA port
From: Magnus Damm <[email protected]>
Enable the DU device and the VGA port available on the r8a7794 ALT board. The VGA portion of the ALT board is somewhat similar to the Lager board but in case of ALT the DU1 pins are used and the X2 clock has a reduced frequency.
This patch does not include any pinctrl (PFC) settings due to lack of PFC DT integration on r8a7794. At this point the default state of the boot loader is enough to keep the VGA port working without changing any pinctrl settings.
Signed-off-by Magnus Damm <[email protected]>
---
Changes since V1:
- Updated to fit on r8a7794 DU patches from Laurent
arch/arm/boot/dts/r8a7794-alt.dts | 61 +++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+)
arch/arm/boot/dts/r8a7794-alt.dts +61 -0
@@ -33,6 +33,67 @@ #address-cells = <1>; #size-cells = <1>; }; + + vga-encoder { + compatible = "adi,adv7123"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + adv7123_in: endpoint { + remote-endpoint = <&du_out_rgb1>; + }; + }; + port@1 { + reg = <1>; + adv7123_out: endpoint { + remote-endpoint = <&vga_in>; + }; + }; + }; + }; + + vga { + compatible = "vga-connector"; + + port { + vga_in: endpoint { + remote-endpoint = <&adv7123_out>; + }; + }; + }; + + x2_clk: x2-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <74250000>; + }; + + x13_clk: x13-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <148500000>; + }; +}; + +&du { + status = "okay"; + + clocks = <&mstp7_clks R8A7794_CLK_DU0>, + <&mstp7_clks R8A7794_CLK_DU0>, + <&x13_clk>, <&x2_clk>; + clock-names = "du.0", "du.1", "dclkin.0", "dclkin.1"; + + ports { + port@1 { + endpoint { + remote-endpoint = <&adv7123_in>; + }; + }; + }; }; &extal_clk {