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Message-ID: <CAHCN7xKYooBQzREdoa8ybhQUBXxy6RPaFX9rp1keD7_HgnVA9Q@mail.gmail.com>
Date: Tue, 29 Jun 2021 08:36:23 -0500
From: Adam Ford <aford173@...il.com>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc: Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Sascha Hauer <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Philipp Zabel <p.zabel@...gutronix.de>,
Lucas Stach <l.stach@...gutronix.de>,
Krzysztof Kozlowski <krzk@...nel.org>,
Guido Günther <agx@...xcpu.org>,
Marek Vasut <marex@...x.de>,
Andrey Smirnov <andrew.smirnov@...il.com>,
devicetree <devicetree@...r.kernel.org>,
arm-soc <linux-arm-kernel@...ts.infradead.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Jacky Bai <ping.bai@....com>,
Schrempf Frieder <frieder.schrempf@...tron.de>,
Abel Vesa <abel.vesa@....com>, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH] arm64: dts: imx8mm: add pgc/blk_ctl nodes
On Fri, Jun 4, 2021 at 5:37 AM Peng Fan (OSS) <peng.fan@....nxp.com> wrote:
>
> From: Peng Fan <peng.fan@....com>
>
> With PGC and BLK-CTL landed, we could add pgc and blk-ctl nodes,
> because some pgc domain relies on blk-ctl power domain, so
> they need to be added together.
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>
> V1:
> Depends on the blk-ctl patchset,
> https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210522134249.15322-1-peng.fan@oss.nxp.com/
>
> Shawn,
> Since the blk-ctl patchset is in good shape and tested, is it ok for
> you to pick up?
> Thanks
>
> arch/arm64/boot/dts/freescale/imx8mm.dtsi | 128 ++++++++++++++++++++++
> 1 file changed, 128 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> index e7648c3b8390..0e01ff649956 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> @@ -7,6 +7,8 @@
> #include <dt-bindings/gpio/gpio.h>
> #include <dt-bindings/input/input.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/power/imx8mm-power.h>
> +#include <dt-bindings/reset/imx8mq-reset.h>
> #include <dt-bindings/thermal/thermal.h>
>
> #include "imx8mm-pinfunc.h"
> @@ -609,6 +611,109 @@ src: reset-controller@...90000 {
> interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> #reset-cells = <1>;
> };
> +
> + gpc: gpc@...a0000 {
> + compatible = "fsl,imx8mm-gpc";
> + reg = <0x303a0000 0x10000>;
> + interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-parent = <&gic>;
> + interrupt-controller;
> + #interrupt-cells = <3>;
> +
> + pgc {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pgc_hsiomix: power-domain@0 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_HSIOMIX>;
> + clocks = <&clk IMX8MM_CLK_USB1_CTRL_ROOT>;
> + };
> +
> + pgc_pcie: power-domain@1 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_PCIE>;
> + power-domains = <&pgc_hsiomix>;
> + clocks = <&clk IMX8MM_CLK_PCIE1_ROOT>;
> + };
> +
> + pgc_otg1: power-domain@2 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_OTG1>;
> + power-domains = <&pgc_hsiomix>;
> + };
> +
> + pgc_otg2: power-domain@3 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_OTG2>;
> + power-domains = <&pgc_hsiomix>;
> + };
> +
Any change you could add the references to pgc_otg1 and pgc_otg2 to
their respective OTG nodes? Without them, enabling OTG1 or OTG2 can
result in a hang unless it was started in U-Boot.
> + pgc_gpumix: power-domain@4 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_GPUMIX>;
> + clocks = <&clk IMX8MM_CLK_GPU_BUS_ROOT>,
> + <&clk IMX8MM_CLK_GPU_AHB>;
> + };
> +
> + pgc_gpu: power-domain@5 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_GPU>;
> + clocks = <&clk IMX8MM_CLK_GPU_AHB>,
> + <&clk IMX8MM_CLK_GPU_BUS_ROOT>,
> + <&clk IMX8MM_CLK_GPU2D_ROOT>,
> + <&clk IMX8MM_CLK_GPU3D_ROOT>;
> + resets = <&src IMX8MQ_RESET_GPU_RESET>;
> + power-domains = <&pgc_gpumix>;
> + };
> +
> + pgc_vpumix: power-domain@6 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_VPUMIX>;
> + clocks = <&clk IMX8MM_CLK_VPU_DEC_ROOT>;
> + resets = <&src IMX8MQ_RESET_VPU_RESET>;
> + };
> +
> + pgc_vpu_g1: power-domain@7 {
> + #power-domain-cells = <0>;
> + power-domains =
> + <&vpumix_blk_ctl IMX8MM_BLK_CTL_PD_VPU_BUS>;
> + reg = <IMX8MM_POWER_DOMAIN_VPUG1>;
> + clocks = <&clk IMX8MM_CLK_VPU_G1_ROOT>;
> + };
> +
> + pgc_vpu_g2: power-domain@8 {
> + #power-domain-cells = <0>;
> + power-domains =
> + <&vpumix_blk_ctl IMX8MM_BLK_CTL_PD_VPU_BUS>;
> + reg = <IMX8MM_POWER_DOMAIN_VPUG2>;
> + clocks = <&clk IMX8MM_CLK_VPU_G2_ROOT>;
> + };
> +
> + pgc_vpu_h1: power-domain@9 {
> + #power-domain-cells = <0>;
> + power-domains =
> + <&vpumix_blk_ctl IMX8MM_BLK_CTL_PD_VPU_BUS>;
> + reg = <IMX8MM_POWER_DOMAIN_VPUH1>;
> + clocks = <&clk IMX8MM_CLK_VPU_H1_ROOT>;
> + };
> +
> + pgc_dispmix: power-domain@10 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_DISPMIX>;
> + clocks = <&clk IMX8MM_CLK_DISP_ROOT>,
> + <&clk IMX8MM_CLK_DISP_AXI_ROOT>,
> + <&clk IMX8MM_CLK_DISP_APB_ROOT>;
> + };
> +
> + pgc_mipi: power-domain@11 {
> + #power-domain-cells = <0>;
> + reg = <IMX8MM_POWER_DOMAIN_MIPI>;
> + power-domains =
> + <&dispmix_blk_ctl IMX8MM_BLK_CTL_PD_DISPMIX_BUS>;
> + };
> + };
> + };
> };
>
> aips2: bus@...00000 {
> @@ -960,6 +1065,18 @@ aips4: bus@...00000 {
> #size-cells = <1>;
> ranges = <0x32c00000 0x32c00000 0x400000>;
>
> + dispmix_blk_ctl: blk_ctl@...28000 {
> + compatible = "fsl,imx8mm-dispmix-blk-ctl", "syscon";
> + reg = <0x32e28000 0x100>;
> + #power-domain-cells = <1>;
> + #reset-cells = <1>;
> + power-domains = <&pgc_dispmix>, <&pgc_mipi>;
> + power-domain-names = "dispmix", "mipi";
> + clocks = <&clk IMX8MM_CLK_DISP_ROOT>,
> + <&clk IMX8MM_CLK_DISP_AXI_ROOT>,
> + <&clk IMX8MM_CLK_DISP_APB_ROOT>;
> + };
> +
> usbotg1: usb@...40000 {
> compatible = "fsl,imx8mm-usb", "fsl,imx7d-usb";
> reg = <0x32e40000 0x200>;
> @@ -1029,6 +1146,17 @@ gpmi: nand-controller@...02000{
> status = "disabled";
> };
>
> + vpumix_blk_ctl: blk-ctl@...30000 {
> + compatible = "fsl,imx8mm-vpumix-blk-ctl", "syscon";
> + reg = <0x38330000 0x100>;
> + #power-domain-cells = <1>;
> + #reset-cells = <1>;
> + power-domains = <&pgc_vpumix>, <&pgc_vpu_g1>, <&pgc_vpu_g2>, <&pgc_vpu_h1>;
> + power-domain-names = "vpumix", "vpu-g1", "vpu-g2", "vpu-h1";
> + clocks = <&clk IMX8MM_CLK_VPU_DEC_ROOT>, <&clk IMX8MM_CLK_VPU_G1_ROOT>,
> + <&clk IMX8MM_CLK_VPU_G2_ROOT>, <&clk IMX8MM_CLK_VPU_H1_ROOT>;
> + };
> +
> gic: interrupt-controller@...00000 {
> compatible = "arm,gic-v3";
> reg = <0x38800000 0x10000>, /* GIC Dist */
> --
> 2.30.0
>
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