Re: [PATCH 1/3] arm64: dts: ti: am654: Add DSS node

Tero Kristo
2020-04-27T10:09:04Z

On 22/04/2020 12:15, Tomi Valkeinen wrote:
> From: Jyri Sarha <jsarha@ti.com>
>
> Add DSS node to k3-am65-main.dtsi with labels for board specific
> support and syscon node for oldi-io-ctrl.
>
> Signed-off-by: Jyri Sarha <jsarha@ti.com>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
> ---
> arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 44 ++++++++++++++++++++++++
> 1 file changed, 44 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index 11887c72f23a..7d1bc991708e 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -287,6 +287,11 @@
> mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
> <0x4090 0x3>; /* SERDES1 lane select */
> };
> +
> + dss_oldi_io_ctrl: dss_oldi_io_ctrl@41E0 {
> + compatible = "syscon";
> + reg = <0x0000041E0 0x14>;
> + };
> };
>
> dwc3_0: dwc3@4000000 {
> @@ -746,4 +751,43 @@
> };
> };
> };
> +
> + dss: dss@04a00000 {
> + compatible = "ti,am65x-dss";
> + reg = <0x0 0x04a00000 0x0 0x1000>, /* common */
> + <0x0 0x04a02000 0x0 0x1000>, /* vidl1 */
> + <0x0 0x04a06000 0x0 0x1000>, /* vid */
> + <0x0 0x04a07000 0x0 0x1000>, /* ovr1 */
> + <0x0 0x04a08000 0x0 0x1000>, /* ovr2 */
> + <0x0 0x04a0a000 0x0 0x1000>, /* vp1 */
> + <0x0 0x04a0b000 0x0 0x1000>; /* vp2 */
> + reg-names = "common", "vidl1", "vid",
> + "ovr1", "ovr2", "vp1", "vp2";
> +
> + ti,am65x-oldi-io-ctrl = <&dss_oldi_io_ctrl>;
> +
> + power-domains = <&k3_pds 67 TI_SCI_PD_EXCLUSIVE>;
> +
> + clocks = <&k3_clks 67 1>,
> + <&k3_clks 216 1>,
> + <&k3_clks 67 2>;
> + clock-names = "fck", "vp1", "vp2";
> +
> + /*
> + * Set vp2 clk (DPI_1_IN_CLK) mux to PLL4 via
> + * DIV1. See "Figure 12-3365. DSS Integration"
> + * in AM65x TRM for details.
> + */
> + assigned-clocks = <&k3_clks 67 2>;
> + assigned-clock-parents = <&k3_clks 67 5>;
> +
> + interrupts = <GIC_SPI 166 IRQ_TYPE_EDGE_RISING>;
> +
> + status = "disabled";

Any reason why the node is disabled? Are you planning to enable it
somewhere later on, or is that left for the user to do?

-Tero

> +
> + dss_ports: ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + };
> + };
> };
>

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