2022-05-30 14:04:05

by Rahul T R

Subject: [PATCH v4 2/3] arm64: dts: ti: k3-j721e-*: Add dts nodes for EHRPWMs

From: Vijay Pothukuchi <[email protected]>

Add dts nodes for 6 EHRPWM instances on SoC

Signed-off-by: Vijay Pothukuchi <[email protected]>
Signed-off-by: Rahul T R <[email protected]>
---
.../dts/ti/k3-j721e-common-proc-board.dts | 24 +++++++
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 62 ++++++++++++++++++-
arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 24 +++++++
3 files changed, 109 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 2bc26a296496..f7d02fa4d6fc 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -995,3 +995,27 @@
&main_mcan13 {
status = "disabled";
};
+
+&main_ehrpwm0 {
+ status = "disabled";
+};
+
+&main_ehrpwm1 {
+ status = "disabled";
+};
+
+&main_ehrpwm2 {
+ status = "disabled";
+};
+
+&main_ehrpwm3 {
+ status = "disabled";
+};
+
+&main_ehrpwm4 {
+ status = "disabled";
+};
+
+&main_ehrpwm5 {
+ status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 43b6cf5791ee..1ee00b73905d 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -66,7 +66,67 @@
#mux-control-cells = <1>;
mux-reg-masks = <0x4000 0x8000000>, /* USB0 to SERDES0/3 mux */
<0x4010 0x8000000>; /* USB1 to SERDES1/2 mux */
- };
+ };
+
+ ehrpwm_tbclk: clock-controller@4140 {
+ compatible = "ti,am654-ehrpwm-tbclk", "syscon";
+ reg = <0x4140 0x18>;
+ #clock-cells = <1>;
+ };
+ };
+
+ main_ehrpwm0: pwm@3000000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x0 0x3000000 0x0 0x100>;
+ power-domains = <&k3_pds 83 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 0>, <&k3_clks 83 0>;
+ clock-names = "tbclk", "fck";
+ };
+
+ main_ehrpwm1: pwm@3010000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x0 0x3010000 0x0 0x100>;
+ power-domains = <&k3_pds 84 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 1>, <&k3_clks 84 0>;
+ clock-names = "tbclk", "fck";
+ };
+
+ main_ehrpwm2: pwm@3020000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x0 0x3020000 0x0 0x100>;
+ power-domains = <&k3_pds 85 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 2>, <&k3_clks 85 0>;
+ clock-names = "tbclk", "fck";
+ };
+
+ main_ehrpwm3: pwm@3030000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x0 0x3030000 0x0 0x100>;
+ power-domains = <&k3_pds 86 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 3>, <&k3_clks 86 0>;
+ clock-names = "tbclk", "fck";
+ };
+
+ main_ehrpwm4: pwm@3040000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x0 0x3040000 0x0 0x100>;
+ power-domains = <&k3_pds 87 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 4>, <&k3_clks 87 0>;
+ clock-names = "tbclk", "fck";
+ };
+
+ main_ehrpwm5: pwm@3050000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x0 0x3050000 0x0 0x100>;
+ power-domains = <&k3_pds 88 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 5>, <&k3_clks 88 0>;
+ clock-names = "tbclk", "fck";
};

gic500: interrupt-controller@1800000 {
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 80358cba6954..98a55778f3fe 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -1129,3 +1129,27 @@
memory-region = <&c71_0_dma_memory_region>,
<&c71_0_memory_region>;
};
+
+&main_ehrpwm0 {
+ status = "disabled";
+};
+
+&main_ehrpwm1 {
+ status = "disabled";
+};
+
+&main_ehrpwm2 {
+ status = "disabled";
+};
+
+&main_ehrpwm3 {
+ status = "disabled";
+};
+
+&main_ehrpwm4 {
+ status = "disabled";
+};
+
+&main_ehrpwm5 {
+ status = "disabled";
+};
--
2.17.1

2022-06-18 02:39:00

by Nishanth Menon

Subject: Re: [PATCH v4 2/3] arm64: dts: ti: k3-j721e-*: Add dts nodes for EHRPWMs

On 15:40-20220530, Rahul T R wrote:
> From: Vijay Pothukuchi <[email protected]>
>
> Add dts nodes for 6 EHRPWM instances on SoC
>
> Signed-off-by: Vijay Pothukuchi <[email protected]>
> Signed-off-by: Rahul T R <[email protected]>
> ---
> .../dts/ti/k3-j721e-common-proc-board.dts | 24 +++++++
> arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 62 ++++++++++++++++++-
> arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 24 +++++++
> 3 files changed, 109 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> index 2bc26a296496..f7d02fa4d6fc 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> @@ -995,3 +995,27 @@
> &main_mcan13 {
> status = "disabled";
> };
> +
> +&main_ehrpwm0 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm1 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm2 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm3 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm4 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm5 {
> + status = "disabled";
> +};


Do the pwm driver croak and die OR it is un-usable on proc-board or
disabled due to not-primary function (ideally drivers should shut things
off when unused)?

> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> index 43b6cf5791ee..1ee00b73905d 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> @@ -66,7 +66,67 @@
> #mux-control-cells = <1>;
> mux-reg-masks = <0x4000 0x8000000>, /* USB0 to SERDES0/3 mux */
> <0x4010 0x8000000>; /* USB1 to SERDES1/2 mux */
> - };
> + };
> +
> + ehrpwm_tbclk: clock-controller@4140 {
> + compatible = "ti,am654-ehrpwm-tbclk", "syscon";
> + reg = <0x4140 0x18>;
> + #clock-cells = <1>;
> + };
> + };
> +
> + main_ehrpwm0: pwm@3000000 {
> + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> + #pwm-cells = <3>;
> + reg = <0x0 0x3000000 0x0 0x100>;

would suggest 0x00 instead of 0x0

> + power-domains = <&k3_pds 83 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&ehrpwm_tbclk 0>, <&k3_clks 83 0>;
> + clock-names = "tbclk", "fck";
> + };
> +
> + main_ehrpwm1: pwm@3010000 {
> + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> + #pwm-cells = <3>;
> + reg = <0x0 0x3010000 0x0 0x100>;
> + power-domains = <&k3_pds 84 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&ehrpwm_tbclk 1>, <&k3_clks 84 0>;
> + clock-names = "tbclk", "fck";
> + };
> +
> + main_ehrpwm2: pwm@3020000 {
> + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> + #pwm-cells = <3>;
> + reg = <0x0 0x3020000 0x0 0x100>;
> + power-domains = <&k3_pds 85 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&ehrpwm_tbclk 2>, <&k3_clks 85 0>;
> + clock-names = "tbclk", "fck";
> + };
> +
> + main_ehrpwm3: pwm@3030000 {
> + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> + #pwm-cells = <3>;
> + reg = <0x0 0x3030000 0x0 0x100>;
> + power-domains = <&k3_pds 86 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&ehrpwm_tbclk 3>, <&k3_clks 86 0>;
> + clock-names = "tbclk", "fck";
> + };
> +
> + main_ehrpwm4: pwm@3040000 {
> + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> + #pwm-cells = <3>;
> + reg = <0x0 0x3040000 0x0 0x100>;
> + power-domains = <&k3_pds 87 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&ehrpwm_tbclk 4>, <&k3_clks 87 0>;
> + clock-names = "tbclk", "fck";
> + };
> +
> + main_ehrpwm5: pwm@3050000 {
> + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> + #pwm-cells = <3>;
> + reg = <0x0 0x3050000 0x0 0x100>;
> + power-domains = <&k3_pds 88 TI_SCI_PD_EXCLUSIVE>;
> + clocks = <&ehrpwm_tbclk 5>, <&k3_clks 88 0>;
> + clock-names = "tbclk", "fck";
> };
>
> gic500: interrupt-controller@1800000 {
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
> index 80358cba6954..98a55778f3fe 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
> @@ -1129,3 +1129,27 @@
> memory-region = <&c71_0_dma_memory_region>,
> <&c71_0_memory_region>;
> };
> +
> +&main_ehrpwm0 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm1 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm2 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm3 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm4 {
> + status = "disabled";
> +};
> +
> +&main_ehrpwm5 {
> + status = "disabled";
> +};
> --
> 2.17.1
>

--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D

2022-06-20 11:57:49

by Rahul T R

Subject: Re: [PATCH v4 2/3] arm64: dts: ti: k3-j721e-*: Add dts nodes for EHRPWMs

On 21:19-20220617, Nishanth Menon wrote:
> On 15:40-20220530, Rahul T R wrote:
> > From: Vijay Pothukuchi <[email protected]>
> >
> > Add dts nodes for 6 EHRPWM instances on SoC
> >
> > Signed-off-by: Vijay Pothukuchi <[email protected]>
> > Signed-off-by: Rahul T R <[email protected]>
> > ---
> > .../dts/ti/k3-j721e-common-proc-board.dts | 24 +++++++
> > arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 62 ++++++++++++++++++-
> > arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 24 +++++++
> > 3 files changed, 109 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> > index 2bc26a296496..f7d02fa4d6fc 100644
> > --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> > +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> > @@ -995,3 +995,27 @@
> > &main_mcan13 {
> > status = "disabled";
> > };
> > +
> > +&main_ehrpwm0 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm1 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm2 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm3 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm4 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm5 {
> > + status = "disabled";
> > +};
>
>
> Do the pwm driver croak and die OR it is un-usable on proc-board or
> disabled due to not-primary function (ideally drivers should shut things
> off when unused)?
>

Hi Nishanth,

Nodes are disabled since
EHRPWM is not primary function
and pins are configured for
different interfaces like MCASP10 etc..

> > diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> > index 43b6cf5791ee..1ee00b73905d 100644
> > --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> > +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> > @@ -66,7 +66,67 @@
> > #mux-control-cells = <1>;
> > mux-reg-masks = <0x4000 0x8000000>, /* USB0 to SERDES0/3 mux */
> > <0x4010 0x8000000>; /* USB1 to SERDES1/2 mux */
> > - };
> > + };
> > +
> > + ehrpwm_tbclk: clock-controller@4140 {
> > + compatible = "ti,am654-ehrpwm-tbclk", "syscon";
> > + reg = <0x4140 0x18>;
> > + #clock-cells = <1>;
> > + };
> > + };
> > +
> > + main_ehrpwm0: pwm@3000000 {
> > + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> > + #pwm-cells = <3>;
> > + reg = <0x0 0x3000000 0x0 0x100>;
>
> would suggest 0x00 instead of 0x0

will fix this in the respin

Regards
Rahul T R

>
> > + power-domains = <&k3_pds 83 TI_SCI_PD_EXCLUSIVE>;
> > + clocks = <&ehrpwm_tbclk 0>, <&k3_clks 83 0>;
> > + clock-names = "tbclk", "fck";
> > + };
> > +
> > + main_ehrpwm1: pwm@3010000 {
> > + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> > + #pwm-cells = <3>;
> > + reg = <0x0 0x3010000 0x0 0x100>;
> > + power-domains = <&k3_pds 84 TI_SCI_PD_EXCLUSIVE>;
> > + clocks = <&ehrpwm_tbclk 1>, <&k3_clks 84 0>;
> > + clock-names = "tbclk", "fck";
> > + };
> > +
> > + main_ehrpwm2: pwm@3020000 {
> > + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> > + #pwm-cells = <3>;
> > + reg = <0x0 0x3020000 0x0 0x100>;
> > + power-domains = <&k3_pds 85 TI_SCI_PD_EXCLUSIVE>;
> > + clocks = <&ehrpwm_tbclk 2>, <&k3_clks 85 0>;
> > + clock-names = "tbclk", "fck";
> > + };
> > +
> > + main_ehrpwm3: pwm@3030000 {
> > + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> > + #pwm-cells = <3>;
> > + reg = <0x0 0x3030000 0x0 0x100>;
> > + power-domains = <&k3_pds 86 TI_SCI_PD_EXCLUSIVE>;
> > + clocks = <&ehrpwm_tbclk 3>, <&k3_clks 86 0>;
> > + clock-names = "tbclk", "fck";
> > + };
> > +
> > + main_ehrpwm4: pwm@3040000 {
> > + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> > + #pwm-cells = <3>;
> > + reg = <0x0 0x3040000 0x0 0x100>;
> > + power-domains = <&k3_pds 87 TI_SCI_PD_EXCLUSIVE>;
> > + clocks = <&ehrpwm_tbclk 4>, <&k3_clks 87 0>;
> > + clock-names = "tbclk", "fck";
> > + };
> > +
> > + main_ehrpwm5: pwm@3050000 {
> > + compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
> > + #pwm-cells = <3>;
> > + reg = <0x0 0x3050000 0x0 0x100>;
> > + power-domains = <&k3_pds 88 TI_SCI_PD_EXCLUSIVE>;
> > + clocks = <&ehrpwm_tbclk 5>, <&k3_clks 88 0>;
> > + clock-names = "tbclk", "fck";
> > };
> >
> > gic500: interrupt-controller@1800000 {
> > diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
> > index 80358cba6954..98a55778f3fe 100644
> > --- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
> > +++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
> > @@ -1129,3 +1129,27 @@
> > memory-region = <&c71_0_dma_memory_region>,
> > <&c71_0_memory_region>;
> > };
> > +
> > +&main_ehrpwm0 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm1 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm2 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm3 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm4 {
> > + status = "disabled";
> > +};
> > +
> > +&main_ehrpwm5 {
> > + status = "disabled";
> > +};
> > --
> > 2.17.1
> >
>
> --
> Regards,
> Nishanth Menon
> Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D