On Fri, Aug 26, 2016 at 04:27:41PM +0200, Marek Vasut wrote:
> Add DT bindings for new MXSFB driver using the DRM framework.
> The old MXSFB fbdev driver bindings are preserved in mxsfb.txt .
They should be documented in the same place as they describe the same
h/w. I've not looked how incompatible they are, but I'd expect that to
be described here.
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: Rob Herring <robh@xxxxxxxxxx>
> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> Cc: Fabio Estevam <fabio.estevam@xxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> ---
> .../devicetree/bindings/display/mxsfb-drm.txt | 33 ++++++++++++++++++++++
DRM is a Linuxism.
> 1 file changed, 33 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/mxsfb-drm.txt
>
> diff --git a/Documentation/devicetree/bindings/display/mxsfb-drm.txt b/Documentation/devicetree/bindings/display/mxsfb-drm.txt
> new file mode 100644
> index 0000000..e70d337
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/mxsfb-drm.txt
> @@ -0,0 +1,33 @@
> +* Freescale MXS LCD Interface (LCDIF) with KMS/DRM support
KMS/DRM is a Linuxism.
> +
> +Required properties:
> +- compatible: Should be "fsl,imx23-lcdif" for i.MX23.
> + Should be "fsl,imx28-lcdif" for i.MX28 and i.MX6SX.
MX6SX should have it's own compatible string. Knowing some of the
development history, I would doubt they are exactly the same.
Also, IIRC MX50 variants have LCDIF.
> +- reg: Address and length of the register set for lcdif
> +- interrupts: Should contain lcdif interrupts
> +- clocks: A list of phandle + clock-specifier pairs, one for each
> + entry in 'clock-names'.
> +- clock-names: A list of clock names. For MXSFB it should contain:
> + - "pix" for the MXSFB block clock
> + - (optional) "axi", "disp_axi" for the bus interface clock on MX6SX
Doesn't this mean required on MX6SX?
> +
> +Required sub-nodes:
> + - port: The connection to an encoder chip.
> +
> +Example:
> +
> + lcdif1: lcdif@02220000 {
Drop the leading 0.
> + compatible = "fsl,imx6sx-lcdif", "fsl,imx28-lcdif";
> + reg = <0x02220000 0x4000>;
> + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&clks IMX6SX_CLK_LCDIF1_PIX>,
> + <&clks IMX6SX_CLK_LCDIF_APB>,
> + <&clks IMX6SX_CLK_DISPLAY_AXI>;
> + clock-names = "pix", "axi", "disp_axi";
> +
> + port {
> + parallel_out: endpoint {
> + remote-endpoint = <&panel_in_parallel>;
> + };
> + };
> + };
> --
> 2.9.3
>
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