On Mon, Mar 28, 2016 at 07:00:00PM -0700, Stefan Agner wrote:
> Add driver for the TCON (timing controller) module. The TCON module
> is a separate module attached after the DCU (display controller
> unit). Each DCU instance has its own, directly connected TCON
> instance. The DCU's RGB and timing signals are passing through
> the TCON module. TCON can provide timing signals for raw TFT panels
> or operate in a bypass mode which leaves all signals unaltered.
>
> The driver currently only supports the bypass mode.
>
> Signed-off-by: Stefan Agner <stefan@xxxxxxxx>
> ---
> .../devicetree/bindings/display/fsl,dcu.txt | 2 +
> .../devicetree/bindings/display/fsl,tcon.txt | 18 ++++
> drivers/gpu/drm/fsl-dcu/Makefile | 3 +-
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 3 +
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h | 1 +
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 11 +++
> drivers/gpu/drm/fsl-dcu/fsl_tcon.c | 108 +++++++++++++++++++++
> drivers/gpu/drm/fsl-dcu/fsl_tcon.h | 33 +++++++
> 8 files changed, 178 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/display/fsl,tcon.txt
> create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_tcon.c
> create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_tcon.h
>
> diff --git a/Documentation/devicetree/bindings/display/fsl,dcu.txt b/Documentation/devicetree/bindings/display/fsl,dcu.txt
> index f299e1e..b19bf12 100644
> --- a/Documentation/devicetree/bindings/display/fsl,dcu.txt
> +++ b/Documentation/devicetree/bindings/display/fsl,dcu.txt
> @@ -14,6 +14,7 @@ Required properties:
> Optional properties:
> - clocks: Second handle for pixel clock.
> - clock-names: Second name "pix" for pixel clock.
> +- fsl,tcon: The phandle to the timing controller node.
>
> Examples:
> dcu: dcu@2ce0000 {
> @@ -23,4 +24,5 @@ dcu: dcu@2ce0000 {
> clock-names = "dcu";
> big-endian;
> fsl,panel = <&panel>;
> + fsl,tcon = <&tcon>;
> };
> diff --git a/Documentation/devicetree/bindings/display/fsl,tcon.txt b/Documentation/devicetree/bindings/display/fsl,tcon.txt
> new file mode 100644
> index 0000000..2e1015e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/fsl,tcon.txt
> @@ -0,0 +1,18 @@
> +Device Tree bindings for Freescale TCON Driver
> +
> +Required properties:
> +- compatible: Should be one of
> + * "fsl,vf610-tcon".
> +
> +- reg: Address and length of the register set for dcu.
s/dcu/tcon/
With that,
Acked-by: Rob Herring <robh@xxxxxxxxxx>
> +- clocks: From common clock binding: handle to tcon ipg clock.
> +- clock-names: From common clock binding: Shall be "ipg".
> +
> +Examples:
> +timing-controller@4003d000 {
> + compatible = "fsl,vf610-tcon";
> + reg = <0x4003d000 0x1000>;
> + clocks = <&clks VF610_CLK_TCON0>;
> + clock-names = "ipg";
> + status = "okay";
> +};
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