diff mbox series

[2/3] arm64: dts: imx8ulp: add scmi firmware node

Message ID 20211117032740.2518926-3-peng.fan@oss.nxp.com (mailing list archive)
State New, archived
Headers show
Series add i.MX8ULP scmi power domain | expand

Commit Message

Peng Fan (OSS) Nov. 17, 2021, 3:27 a.m. UTC
From: Peng Fan <peng.fan@nxp.com>

i.MX8ULP use scmi firmware based power domain and sensor support.
So add the firmware node and the sram it uses.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)

Comments

Shawn Guo Dec. 8, 2021, 12:10 p.m. UTC | #1
On Wed, Nov 17, 2021 at 11:27:39AM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@nxp.com>
> 
> i.MX8ULP use scmi firmware based power domain and sensor support.
> So add the firmware node and the sram it uses.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 35 ++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> index fb8714379026..d567ef93f8d8 100644
> --- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> @@ -6,6 +6,7 @@
>  #include <dt-bindings/clock/imx8ulp-clock.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/power/imx8ulp-power.h>
>  
>  #include "imx8ulp-pinfunc.h"
>  
> @@ -102,6 +103,40 @@ sosc: clock-sosc {
>  		#clock-cells = <0>;
>  	};
>  
> +	sram@2201f000 {
> +		compatible = "mmio-sram";
> +		reg = <0x0 0x2201f000 0x0 0x1000>;
> +
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges = <0 0x0 0x2201f000 0x1000>;
> +
> +		scmi_buf: scmi_buf@0 {

Hyphen is more recommended than underscore for node name.  Or just
follow the naming in arm,scmi.yaml example?

Shawn

> +			compatible = "arm,scmi-shmem";
> +			reg = <0x0 0x400>;
> +		};
> +	};
> +
> +	firmware {
> +		scmi {
> +			compatible = "arm,scmi-smc";
> +			arm,smc-id = <0xc20000fe>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			shmem = <&scmi_buf>;
> +
> +			scmi_devpd: protocol@11 {
> +				reg = <0x11>;
> +				#power-domain-cells = <1>;
> +			};
> +
> +			scmi_sensor: protocol@15 {
> +				reg = <0x15>;
> +				#thermal-sensor-cells = <0>;
> +			};
> +		};
> +	};
> +
>  	soc@0 {
>  		compatible = "simple-bus";
>  		#address-cells = <1>;
> -- 
> 2.25.1
>
Peng Fan Dec. 8, 2021, 1:22 p.m. UTC | #2
Hi Shawn,

> Subject: Re: [PATCH 2/3] arm64: dts: imx8ulp: add scmi firmware node
> 
> On Wed, Nov 17, 2021 at 11:27:39AM +0800, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@nxp.com>
> >
> > i.MX8ULP use scmi firmware based power domain and sensor support.
> > So add the firmware node and the sram it uses.
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> >  arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 35
> > ++++++++++++++++++++++
> >  1 file changed, 35 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> > b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> > index fb8714379026..d567ef93f8d8 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> > @@ -6,6 +6,7 @@
> >  #include <dt-bindings/clock/imx8ulp-clock.h>
> >  #include <dt-bindings/gpio/gpio.h>
> >  #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +#include <dt-bindings/power/imx8ulp-power.h>
> >
> >  #include "imx8ulp-pinfunc.h"
> >
> > @@ -102,6 +103,40 @@ sosc: clock-sosc {
> >  		#clock-cells = <0>;
> >  	};
> >
> > +	sram@2201f000 {
> > +		compatible = "mmio-sram";
> > +		reg = <0x0 0x2201f000 0x0 0x1000>;
> > +
> > +		#address-cells = <1>;
> > +		#size-cells = <1>;
> > +		ranges = <0 0x0 0x2201f000 0x1000>;
> > +
> > +		scmi_buf: scmi_buf@0 {
> 
> Hyphen is more recommended than underscore for node name.  

Just send out v2 to address this issue.

Or just
> follow the naming in arm,scmi.yaml example?

No need to follow its name there, it support many protocols
and need different shmem for performance and others.

Thanks,
Peng.


> 
> Shawn
> 
> > +			compatible = "arm,scmi-shmem";
> > +			reg = <0x0 0x400>;
> > +		};
> > +	};
> > +
> > +	firmware {
> > +		scmi {
> > +			compatible = "arm,scmi-smc";
> > +			arm,smc-id = <0xc20000fe>;
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +			shmem = <&scmi_buf>;
> > +
> > +			scmi_devpd: protocol@11 {
> > +				reg = <0x11>;
> > +				#power-domain-cells = <1>;
> > +			};
> > +
> > +			scmi_sensor: protocol@15 {
> > +				reg = <0x15>;
> > +				#thermal-sensor-cells = <0>;
> > +			};
> > +		};
> > +	};
> > +
> >  	soc@0 {
> >  		compatible = "simple-bus";
> >  		#address-cells = <1>;
> > --
> > 2.25.1
> >
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index fb8714379026..d567ef93f8d8 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
@@ -6,6 +6,7 @@ 
 #include <dt-bindings/clock/imx8ulp-clock.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/imx8ulp-power.h>
 
 #include "imx8ulp-pinfunc.h"
 
@@ -102,6 +103,40 @@  sosc: clock-sosc {
 		#clock-cells = <0>;
 	};
 
+	sram@2201f000 {
+		compatible = "mmio-sram";
+		reg = <0x0 0x2201f000 0x0 0x1000>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x0 0x2201f000 0x1000>;
+
+		scmi_buf: scmi_buf@0 {
+			compatible = "arm,scmi-shmem";
+			reg = <0x0 0x400>;
+		};
+	};
+
+	firmware {
+		scmi {
+			compatible = "arm,scmi-smc";
+			arm,smc-id = <0xc20000fe>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			shmem = <&scmi_buf>;
+
+			scmi_devpd: protocol@11 {
+				reg = <0x11>;
+				#power-domain-cells = <1>;
+			};
+
+			scmi_sensor: protocol@15 {
+				reg = <0x15>;
+				#thermal-sensor-cells = <0>;
+			};
+		};
+	};
+
 	soc@0 {
 		compatible = "simple-bus";
 		#address-cells = <1>;