On Thu, 2022-08-04 at 13:17 +0200, Krzysztof Kozlowski wrote:
> On 04/08/2022 08:11, Liu Ying wrote:
> > Freescale i.MX8qxp pixel link MSI bus is a simple memory-mapped
> > bus.
> > It is used to access peripherals in i.MX8qm/qxp imaging, LVDS, MIPI
> > DSI and HDMI TX subsystems, like I2C controller, PWM controller,
> > MIPI DSI controller and Control and Status Registers (CSR) module.
> >
> > Reference simple-pm-bus bindings and add Freescale i.MX8qxp pixel
> > link MSI bus specific bindings.
> >
> > Signed-off-by: Liu Ying <victor.liu@xxxxxxx>
>
> Thank you for your patch. There is something to discuss/improve.
Thanks for the review.
>
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/clock/imx8-lpcg.h>
> > + #include <dt-bindings/firmware/imx/rsrc.h>
> > + bus@56200000 {
> > + compatible = "fsl,imx8qxp-display-pixel-link-msi-bus",
> > "simple-pm-bus";
> > + reg = <0x56200000 0x20000>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + interrupt-parent = <&dc0_irqsteer>;
> > + interrupts = <320>;
> > + ranges;
> > + clocks = <&dc0_disp_ctrl_link_mst0_lpcg IMX_LPCG_CLK_4>,
> > + <&dc0_disp_ctrl_link_mst0_lpcg IMX_LPCG_CLK_4>;
> > + clock-names = "msi", "ahb";
> > + power-domains = <&pd IMX_SC_R_DC_0>;
>
> The example should be complete, so you should have here children.
> Otherwise it is not a bus.
I may add some children whose compatible strings are in-tree for
i.MX8qxp. It seems that simple-pm-bus driver part(patch 1) will be
changed due to comments, so maybe I'll respin when it's ready.
Regards,
Liu Ying
>
> Best regards,
> Krzysztof
