Re: [PATCH v4 2/8] arm64: dts: imx8qm: add lvds subsystem

Frank Li
2024-07-02T04:23:16Z

On Tue, Jul 02, 2024 at 12:10:58PM +0800, Shawn Guo wrote:
> On Mon, Jul 01, 2024 at 11:03:28AM -0400, Frank Li wrote:
> > Add irqsteer, pwm and i2c in lvds subsystem.
> >
> > Signed-off-by: Frank Li <Frank.Li@nxp.com>
> > ---
> > arch/arm64/boot/dts/freescale/imx8qm-ss-lvds.dtsi | 77 +++++++++++++++++++++++
> > arch/arm64/boot/dts/freescale/imx8qm.dtsi | 10 +++
> > 2 files changed, 87 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8qm-ss-lvds.dtsi b/arch/arm64/boot/dts/freescale/imx8qm-ss-lvds.dtsi
> > new file mode 100644
> > index 0000000000000..1da3934847057
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/freescale/imx8qm-ss-lvds.dtsi
> > @@ -0,0 +1,77 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +
> > +/*
> > + * Copyright 2024 NXP
> > + */
> > +
> > +&qm_lvds0_lis_lpcg {
> > + clocks = <&lvds_ipg_clk>;
> > + clock-indices = <IMX_LPCG_CLK_4>;
> > +};
> > +
> > +&qm_lvds0_pwm_lpcg {
> > + clocks = <&clk IMX_SC_R_LVDS_0_PWM_0 IMX_SC_PM_CLK_PER>,
> > + <&lvds_ipg_clk>;
> > + clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>;
> > +};
> > +
> > +&qm_lvds0_i2c0_lpcg {
> > + clocks = <&clk IMX_SC_R_LVDS_0_I2C_0 IMX_SC_PM_CLK_PER>,
> > + <&lvds_ipg_clk>;
> > + clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>;
> > +};
> > +
> > +&qm_pwm_lvds0 {
> > + clocks = <&qm_lvds0_pwm_lpcg IMX_LPCG_CLK_4>,
> > + <&qm_lvds0_pwm_lpcg IMX_LPCG_CLK_0>;
> > +};
> > +
> > +&qm_i2c0_lvds0 {
> > + clocks = <&qm_lvds0_i2c0_lpcg IMX_LPCG_CLK_0>,
> > + <&qm_lvds0_i2c0_lpcg IMX_LPCG_CLK_4>;
> > +};
> > +
> > +&lvds0_subsys {
> > + interrupt-parent = <&irqsteer_lvds0>;
> > +
> > + irqsteer_lvds0: interrupt-controller@56240000 {
> > + compatible = "fsl,imx8qm-irqsteer", "fsl,imx-irqsteer";
>
> Is compatible "fsl,imx8qm-irqsteer" documented in bindings?

In rob' tree

https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git/commit/?h=dt/next&id=285c645d842c5a15d3be2d653faaa5f68d81be1f

Frank
>
> Shawn
>
> > + reg = <0x56240000 0x1000>;
> > + interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
> > + interrupt-controller;
> > + interrupt-parent = <&gic>;
> > + #interrupt-cells = <1>;
> > + clocks = <&qm_lvds0_lis_lpcg IMX_LPCG_CLK_4>;
> > + clock-names = "ipg";
> > + power-domains = <&pd IMX_SC_R_LVDS_0>;
> > +
> > + fsl,channel = <0>;
> > + fsl,num-irqs = <32>;
> > + };
> > +
> > + lvds0_i2c1_lpcg: clock-controller@56243014 {
> > + compatible = "fsl,imx8qxp-lpcg";
> > + reg = <0x56243014 0x4>;
> > + #clock-cells = <1>;
> > + clocks = <&clk IMX_SC_R_LVDS_0_I2C_0 IMX_SC_PM_CLK_PER>,
> > + <&lvds_ipg_clk>;
> > + clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>;
> > + clock-output-names = "lvds0_i2c1_lpcg_clk",
> > + "lvds0_i2c1_lpcg_ipg_clk";
> > + power-domains = <&pd IMX_SC_R_LVDS_0_I2C_0>;
> > + };
> > +
> > + i2c1_lvds0: i2c@56247000 {
> > + compatible = "fsl,imx8qm-lpi2c", "fsl,imx7ulp-lpi2c";
> > + reg = <0x56247000 0x1000>;
> > + interrupts = <9>;
> > + clocks = <&lvds0_i2c1_lpcg IMX_LPCG_CLK_0>,
> > + <&lvds0_i2c1_lpcg IMX_LPCG_CLK_4>;
> > + clock-names = "per", "ipg";
> > + assigned-clocks = <&clk IMX_SC_R_LVDS_0_I2C_0 IMX_SC_PM_CLK_PER>;
> > + assigned-clock-rates = <24000000>;
> > + power-domains = <&pd IMX_SC_R_LVDS_0_I2C_0>;
> > + status = "disabled";
> > + };
> > +};
> > +
> > diff --git a/arch/arm64/boot/dts/freescale/imx8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
> > index 61986e0639e53..1e8511e8d8577 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8qm.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
> > @@ -560,11 +560,20 @@ clk_spdif1_rx: clock-spdif1-rx {
> > clock-output-names = "spdif1_rx";
> > };
> >
> > + lvds_ipg_clk: clock-controller-lvds-ipg {
> > + compatible = "fixed-clock";
> > + #clock-cells = <0>;
> > + clock-frequency = <24000000>;
> > + clock-output-names = "lvds0_ipg_clk";
> > + };
> > +
> > /* sorted in register address */
> > #include "imx8-ss-cm41.dtsi"
> > #include "imx8-ss-audio.dtsi"
> > #include "imx8-ss-vpu.dtsi"
> > #include "imx8-ss-gpu0.dtsi"
> > + #include "imx8-ss-lvds0.dtsi"
> > + #include "imx8-ss-lvds1.dtsi"
> > #include "imx8-ss-img.dtsi"
> > #include "imx8-ss-dma.dtsi"
> > #include "imx8-ss-conn.dtsi"
> > @@ -576,3 +585,4 @@ clk_spdif1_rx: clock-spdif1-rx {
> > #include "imx8qm-ss-conn.dtsi"
> > #include "imx8qm-ss-lsio.dtsi"
> > #include "imx8qm-ss-audio.dtsi"
> > +#include "imx8qm-ss-lvds.dtsi"
> >
> > --
> > 2.34.1
> >
>