On Tue, Jan 26, 2016 at 12:00:33PM +0800, Meng Yi wrote:
> DCU is the shortcut of 'display controller unit', some HDMI transmitter
> attached to DCU, such as sii9022a, and this driver add the relavent
> functions to DRM framewrok.
>
> Signed-off-by: Meng Yi <meng.yi@xxxxxxx>
> ---
> .../bindings/display/bridge/sil,sii9022a.txt | 40 +++
> drivers/gpu/drm/fsl-dcu/Makefile | 1 +
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.h | 1 +
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_hdmi.c | 271 +++++++++++++++++++++
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c | 10 +
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_output.h | 11 +
> 6 files changed, 334 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/bridge/sil,sii9022a.txt
> create mode 100644 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_hdmi.c
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/sil,sii9022a.txt b/Documentation/devicetree/bindings/display/bridge/sil,sii9022a.txt
> new file mode 100644
> index 0000000..32a726a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/sil,sii9022a.txt
> @@ -0,0 +1,40 @@
> +Device-Tree bindings for the SiI902x hdmi transmitter.
> +-----------------------------------------
> +
> +The SiI9022A is an ultra low-power HDMI transmitter. It supports resolutions from
> +standard definition 480i/p and 576i/p all the way to high-definition 720p, 1080i,
> +and 1080p, the highest resolution supported by HDTVs today. It also supports all
Well, we're up to 4K now...
> +PC resolutions up to UXGA for netbooks
> +
> +Required properties:
> +- compatible: Should be "sil,sii9022a".
> +- reg: The I2C address of the device.
> +- interrupts: Interrupt number to the cpu.
> +
> +Required nodes:
> +
> +The sii9022 has one video ports. Its connection is modelled using the OF
> +graph bindings specified in Documentation/devicetree/bindings/graph.txt.
> +
> +- Video port 0 for the HDMI output
> +
> +Example:
> +-------
> +
> + sii9022: hdmi@39 {
> + compatible = "sil,sii9022a";
> + reg = <0x39>;
> + interrupts = <GIC_SPI 167 IRQ_TYPE_EDGE_RISING>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <1>;
Your unit address (0) and reg don't match.
> + sii9022_out: endpoint {
> + remote-endpoint = <&hdmi_con>;
> + };
This needs to have a port for the input for the connection to your
display controller.
> + };
> + };
> + };
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