Hi Laurent,
On Sun, May 20, 2018 at 10:50 AM, Laurent Pinchart laurent.pinchart@ideasonboard.com wrote:
On Tuesday, 15 May 2018 15:20:38 EEST Ulrich Hecht wrote:
From: Kieran Bingham kieran.bingham+renesas@ideasonboard.com
The r8a77995 D3 platform has 2 LVDS channels connected to the DU.
Signed-off-by: Kieran Bingham kieran.bingham+renesas@ideasonboard.com [uli: moved lvds* into the soc node, added PM domains, resets] Signed-off-by: Ulrich Hecht ulrich.hecht+renesas@gmail.com
arch/arm64/boot/dts/renesas/r8a77995.dtsi | 56 ++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a77995.dtsi b/arch/arm64/boot/dts/renesas/r8a77995.dtsi index ba98865..8e78110d 100644 --- a/arch/arm64/boot/dts/renesas/r8a77995.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a77995.dtsi @@ -757,12 +757,68 @@ port@1 { reg = <1>; du_out_lvds0: endpoint {
remote-endpoint = <&lvds0_in>; }; }; port@2 { reg = <2>; du_out_lvds1: endpoint {remote-endpoint = <&lvds1_in>;};};};};lvds0: lvds-encoder@feb90000 {compatible = "renesas,r8a77995-lvds";reg = <0 0xfeb90000 0 0x20>;clocks = <&cpg CPG_MOD 727>;power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;resets = <&cpg 727>;status = "disabled";ports {#address-cells = <1>;#size-cells = <0>;port@0 {reg = <0>;lvds0_in: endpoint {remote-endpoint = <&du_out_lvds0>;};};port@1 {reg = <1>;lvds0_out: endpoint {};};};};lvds1: lvds-encoder@feb90100 {compatible = "renesas,r8a77995-lvds";reg = <0 0xfeb90100 0 0x20>;clocks = <&cpg CPG_MOD 727>;power-domains = <&sysc R8A77995_PD_ALWAYS_ON>;resets = <&cpg 727>;While there seems to be a single clock for both LVDS encoders, it appears that two separate reset lines are used.
Nice catch!
So you can reset the individual LVDS instances, but not the individual DU instances. Doh...
Gr{oetje,eeting}s,
Geert