diff mbox series

[1/3] arm64: dts: ti: am654: Add DSS node

Message ID 20200422091512.950-1-tomi.valkeinen@ti.com (mailing list archive)
State Mainlined
Commit fc539b90eda229c02f5d8aee4d3a371cb22fc26d
Headers show
Series [1/3] arm64: dts: ti: am654: Add DSS node | expand

Commit Message

Tomi Valkeinen April 22, 2020, 9:15 a.m. UTC
From: Jyri Sarha <jsarha@ti.com>

Add DSS node to k3-am65-main.dtsi with labels for board specific
support and syscon node for oldi-io-ctrl.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 44 ++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

Comments

Tero Kristo April 27, 2020, 10:08 a.m. UTC | #1
On 22/04/2020 12:15, Tomi Valkeinen wrote:
> From: Jyri Sarha <jsarha@ti.com>
> 
> Add DSS node to k3-am65-main.dtsi with labels for board specific
> support and syscon node for oldi-io-ctrl.
> 
> Signed-off-by: Jyri Sarha <jsarha@ti.com>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
> ---
>   arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 44 ++++++++++++++++++++++++
>   1 file changed, 44 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> index 11887c72f23a..7d1bc991708e 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
> @@ -287,6 +287,11 @@
>   			mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
>   					<0x4090 0x3>; /* SERDES1 lane select */
>   		};
> +
> +		dss_oldi_io_ctrl: dss_oldi_io_ctrl@41E0 {
> +			compatible = "syscon";
> +			reg = <0x0000041E0 0x14>;
> +		};
>   	};
>   
>   	dwc3_0: dwc3@4000000 {
> @@ -746,4 +751,43 @@
>   			};
>   		};
>   	};
> +
> +	dss: dss@04a00000 {
> +		compatible = "ti,am65x-dss";
> +		reg =	<0x0 0x04a00000 0x0 0x1000>, /* common */
> +			<0x0 0x04a02000 0x0 0x1000>, /* vidl1 */
> +			<0x0 0x04a06000 0x0 0x1000>, /* vid */
> +			<0x0 0x04a07000 0x0 0x1000>, /* ovr1 */
> +			<0x0 0x04a08000 0x0 0x1000>, /* ovr2 */
> +			<0x0 0x04a0a000 0x0 0x1000>, /* vp1 */
> +			<0x0 0x04a0b000 0x0 0x1000>; /* vp2 */
> +		reg-names = "common", "vidl1", "vid",
> +			"ovr1", "ovr2", "vp1", "vp2";
> +
> +		ti,am65x-oldi-io-ctrl = <&dss_oldi_io_ctrl>;
> +
> +		power-domains = <&k3_pds 67 TI_SCI_PD_EXCLUSIVE>;
> +
> +		clocks =	<&k3_clks 67 1>,
> +				<&k3_clks 216 1>,
> +				<&k3_clks 67 2>;
> +		clock-names = "fck", "vp1", "vp2";
> +
> +		/*
> +		 * Set vp2 clk (DPI_1_IN_CLK) mux to PLL4 via
> +		 * DIV1. See "Figure 12-3365. DSS Integration"
> +		 * in AM65x TRM for details.
> +		 */
> +		assigned-clocks = <&k3_clks 67 2>;
> +		assigned-clock-parents = <&k3_clks 67 5>;
> +
> +		interrupts = <GIC_SPI 166 IRQ_TYPE_EDGE_RISING>;
> +
> +		status = "disabled";

Any reason why the node is disabled? Are you planning to enable it 
somewhere later on, or is that left for the user to do?

-Tero

> +
> +		dss_ports: ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +		};
> +	};
>   };
> 

--
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Tomi Valkeinen April 27, 2020, 10:50 a.m. UTC | #2
On 27/04/2020 13:08, Tero Kristo wrote:
> On 22/04/2020 12:15, Tomi Valkeinen wrote:
>> From: Jyri Sarha <jsarha@ti.com>
>>
>> Add DSS node to k3-am65-main.dtsi with labels for board specific
>> support and syscon node for oldi-io-ctrl.
>>
>> Signed-off-by: Jyri Sarha <jsarha@ti.com>
>> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
>> ---
>>   arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 44 ++++++++++++++++++++++++
>>   1 file changed, 44 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> index 11887c72f23a..7d1bc991708e 100644
>> --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
>> @@ -287,6 +287,11 @@
>>               mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
>>                       <0x4090 0x3>; /* SERDES1 lane select */
>>           };
>> +
>> +        dss_oldi_io_ctrl: dss_oldi_io_ctrl@41E0 {
>> +            compatible = "syscon";
>> +            reg = <0x0000041E0 0x14>;
>> +        };
>>       };
>>       dwc3_0: dwc3@4000000 {
>> @@ -746,4 +751,43 @@
>>               };
>>           };
>>       };
>> +
>> +    dss: dss@04a00000 {
>> +        compatible = "ti,am65x-dss";
>> +        reg =    <0x0 0x04a00000 0x0 0x1000>, /* common */
>> +            <0x0 0x04a02000 0x0 0x1000>, /* vidl1 */
>> +            <0x0 0x04a06000 0x0 0x1000>, /* vid */
>> +            <0x0 0x04a07000 0x0 0x1000>, /* ovr1 */
>> +            <0x0 0x04a08000 0x0 0x1000>, /* ovr2 */
>> +            <0x0 0x04a0a000 0x0 0x1000>, /* vp1 */
>> +            <0x0 0x04a0b000 0x0 0x1000>; /* vp2 */
>> +        reg-names = "common", "vidl1", "vid",
>> +            "ovr1", "ovr2", "vp1", "vp2";
>> +
>> +        ti,am65x-oldi-io-ctrl = <&dss_oldi_io_ctrl>;
>> +
>> +        power-domains = <&k3_pds 67 TI_SCI_PD_EXCLUSIVE>;
>> +
>> +        clocks =    <&k3_clks 67 1>,
>> +                <&k3_clks 216 1>,
>> +                <&k3_clks 67 2>;
>> +        clock-names = "fck", "vp1", "vp2";
>> +
>> +        /*
>> +         * Set vp2 clk (DPI_1_IN_CLK) mux to PLL4 via
>> +         * DIV1. See "Figure 12-3365. DSS Integration"
>> +         * in AM65x TRM for details.
>> +         */
>> +        assigned-clocks = <&k3_clks 67 2>;
>> +        assigned-clock-parents = <&k3_clks 67 5>;
>> +
>> +        interrupts = <GIC_SPI 166 IRQ_TYPE_EDGE_RISING>;
>> +
>> +        status = "disabled";
> 
> Any reason why the node is disabled? Are you planning to enable it somewhere later on, or is that 
> left for the user to do?

It's enabled in board DT files or DT overlays which add a display and the DT graph for the 
connections. Having DSS driver probe without any displays is a waste of resources.

  Tomi
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 11887c72f23a..7d1bc991708e 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -287,6 +287,11 @@ 
 			mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */
 					<0x4090 0x3>; /* SERDES1 lane select */
 		};
+
+		dss_oldi_io_ctrl: dss_oldi_io_ctrl@41E0 {
+			compatible = "syscon";
+			reg = <0x0000041E0 0x14>;
+		};
 	};
 
 	dwc3_0: dwc3@4000000 {
@@ -746,4 +751,43 @@ 
 			};
 		};
 	};
+
+	dss: dss@04a00000 {
+		compatible = "ti,am65x-dss";
+		reg =	<0x0 0x04a00000 0x0 0x1000>, /* common */
+			<0x0 0x04a02000 0x0 0x1000>, /* vidl1 */
+			<0x0 0x04a06000 0x0 0x1000>, /* vid */
+			<0x0 0x04a07000 0x0 0x1000>, /* ovr1 */
+			<0x0 0x04a08000 0x0 0x1000>, /* ovr2 */
+			<0x0 0x04a0a000 0x0 0x1000>, /* vp1 */
+			<0x0 0x04a0b000 0x0 0x1000>; /* vp2 */
+		reg-names = "common", "vidl1", "vid",
+			"ovr1", "ovr2", "vp1", "vp2";
+
+		ti,am65x-oldi-io-ctrl = <&dss_oldi_io_ctrl>;
+
+		power-domains = <&k3_pds 67 TI_SCI_PD_EXCLUSIVE>;
+
+		clocks =	<&k3_clks 67 1>,
+				<&k3_clks 216 1>,
+				<&k3_clks 67 2>;
+		clock-names = "fck", "vp1", "vp2";
+
+		/*
+		 * Set vp2 clk (DPI_1_IN_CLK) mux to PLL4 via
+		 * DIV1. See "Figure 12-3365. DSS Integration"
+		 * in AM65x TRM for details.
+		 */
+		assigned-clocks = <&k3_clks 67 2>;
+		assigned-clock-parents = <&k3_clks 67 5>;
+
+		interrupts = <GIC_SPI 166 IRQ_TYPE_EDGE_RISING>;
+
+		status = "disabled";
+
+		dss_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
 };