[PATCH 2/3] ARM: dts: imx6qdl-nitrogen6x: Allow HDMI and LVDS to work simultaneously

[Gary Bisson]

Fabio, All,

On Mon, Jun 29, 2015 at 6:16 PM, Fabio Estevam
<fabio.estevam at freescale.com> wrote:
> Currently it is not possible to have HDMI and LVDS working simultaneously,
> because both ports try to use PLL5.
>
> Move the LVDS clock parent to PLL3_USB_OTG, so that HDMI and LVDS can be
> driven from independent sources.
>
> With this change the LDB pixel clock goes to 68.57 MHz, which is still
> within the valid range for the HSD100PXN1 LVDS panel.
>
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
> ---
>  arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> index 3af16df..1cba390 100644
> --- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
> @@ -149,6 +149,13 @@
>         status = "okay";
>  };
>
> +&clks {
> +       assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
> +                         <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
> +       assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
> +                                <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
> +};
> +
>  &ecspi1 {
>         fsl,spi-num-chipselects = <1>;
>         cs-gpios = <&gpio3 19 0>;
> --
> 1.9.1
>

Tested using linux-next 20150629 on Nitrogen6x with either Hannstar 7"
or 10" + HDMI monitor.
This patch relies on previous clk-imx6q patch from Fabio:
https://patchwork.kernel.org/patch/6682561/

Tested-by: Gary Bisson <gary.bisson at boundarydevices.com>

Regards,
Gary