diff mbox

[5/7] ARM: sun8i: a33: Add display pipeline

Message ID 20160901153204.11217-6-maxime.ripard@free-electrons.com (mailing list archive)
State New, archived
Headers show

Commit Message

Maxime Ripard Sept. 1, 2016, 3:32 p.m. UTC
Add all the needed blocks to the A33 DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun8i-a33.dtsi | 184 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)

Comments

Chen-Yu Tsai Sept. 2, 2016, 6:28 a.m. UTC | #1
Hi,

On Thu, Sep 1, 2016 at 11:32 PM, Maxime Ripard
<maxime.ripard@free-electrons.com> wrote:
> Add all the needed blocks to the A33 DTSI.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> ---
>  arch/arm/boot/dts/sun8i-a33.dtsi | 184 +++++++++++++++++++++++++++++++++++++++
>  1 file changed, 184 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
> index deb0cd613e97..5f9dbd17eb50 100644
> --- a/arch/arm/boot/dts/sun8i-a33.dtsi
> +++ b/arch/arm/boot/dts/sun8i-a33.dtsi
> @@ -64,6 +64,42 @@
>         };
>
>         soc@01c00000 {
> +               tcon0: lcd-controller@01c0c000 {
> +                       compatible = "allwinner,sun8i-a23-tcon";
> +                       reg = <0x01c0c000 0x1000>;
> +                       interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
> +                       clocks = <&ccu CLK_BUS_LCD>,
> +                                <&ccu CLK_LCD_CH0>;
> +                       clock-names = "ahb",
> +                                     "tcon-ch0";
> +                       clock-output-names = "tcon-pixel-clock";
> +                       resets = <&ccu RST_BUS_LCD>;
> +                       reset-names = "lcd";
> +                       status = "disabled";
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               tcon0_in: port@0 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <0>;
> +
> +                                       tcon0_in_drc0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&drc0_out_tcon0>;
> +                                       };
> +                               };
> +
> +                               tcon0_out: port@1 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <1>;
> +                               };
> +                       };
> +               };
> +
>                 crypto: crypto-engine@01c15000 {
>                         compatible = "allwinner,sun4i-a10-crypto";
>                         reg = <0x01c15000 0x1000>;
> @@ -104,6 +140,154 @@
>                         status = "disabled";
>                         #phy-cells = <1>;
>                 };
> +
> +               fe0: display-frontend@01e00000 {
> +                       compatible = "allwinner,sun8i-a33-display-frontend";
> +                       reg = <0x01e00000 0x20000>;
> +                       interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
> +                       clocks = <&ccu CLK_BUS_DE_FE>, <&ccu CLK_DE_FE>,
> +                                <&ccu CLK_DRAM_DE_FE>;
> +                       clock-names = "ahb", "mod",
> +                                     "ram";
> +                       resets = <&ccu RST_BUS_DE_FE>;
> +                       status = "disabled";
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               fe0_out: port@1 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <1>;
> +
> +                                       fe0_out_sat0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&sat0_in_fe0>;
> +                                       };
> +                               };
> +                       };
> +               };
> +
> +               be0: display-backend@01e60000 {
> +                       compatible = "allwinner,sun8i-a33-display-backend";
> +                       reg = <0x01e60000 0x10000>;

Please also list the interrupt, even though we don't use it yet.
The manual says it's 127 - 32 = 95.

> +                       clocks = <&ccu CLK_BUS_DE_BE>, <&ccu CLK_DE_BE>,
> +                                <&ccu CLK_DRAM_DE_BE>;
> +                       clock-names = "ahb", "mod",
> +                                     "ram";
> +                       resets = <&ccu RST_BUS_DE_BE>;
> +
> +                       assigned-clocks = <&ccu CLK_DE_BE>;
> +                       assigned-clock-rates = <300000000>;
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               be0_in: port@0 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <0>;
> +
> +                                       be0_in_sat0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&sat0_out_be0>;
> +                                       };
> +                               };
> +
> +                               be0_out: port@1 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <1>;
> +
> +                                       be0_out_drc0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&drc0_in_be0>;
> +                                       };
> +                               };
> +                       };
> +               };
> +
> +               drc0: drc@01e70000 {
> +                       compatible = "allwinner,sun8i-a33-drc";
> +                       reg = <0x01e70000 0x10000>;
> +                       interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
> +                       clocks = <&ccu CLK_BUS_DRC>, <&ccu CLK_DRC>,
> +                                <&ccu CLK_DRAM_DRC>;
> +                       clock-names = "ahb", "mod", "ram";
> +                       resets = <&ccu RST_BUS_DRC>;
> +
> +                       assigned-clocks = <&ccu CLK_DRC>;
> +                       assigned-clock-rates = <300000000>;
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               drc0_in: port@0 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <0>;
> +
> +                                       drc0_in_be0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&be0_out_drc0>;
> +                                       };
> +                               };
> +
> +                               drc0_out: port@1 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <1>;
> +
> +                                       drc0_out_tcon0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&tcon0_in_drc0>;
> +                                       };
> +                               };
> +                       };
> +               };
> +
> +               sat0: sat@01e80000 {
> +                       compatible = "allwinner,sun8i-a33-sat";
> +                       reg = <0x01e80000 0x1000>;
> +                       clocks = <&ccu CLK_BUS_SAT>;
> +                       resets = <&ccu RST_BUS_SAT>;
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               sat0_in: port@0 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <0>;
> +
> +                                       sat0_in_fe0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&fe0_out_sat0>;
> +                                       };
> +                               };
> +
> +                               sat0_out: port@1 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <1>;
> +
> +                                       sat0_out_be0: endpoint@0 {
> +                                               reg = <0>;
> +                                               remote-endpoint = <&be0_in_sat0>;
> +                                       };
> +                               };

I'm worried about the representation here.

In the user manuals, the SAT is shown as part of the BE.
Look at it this way: if it did come before the BE and is
independent, we shouldn't have to bring the SAT out of
reset for simplefb to work.

For comparison, a similar function unit called "CMU" found on
the other post-sun6i SoCs has the same function description as
SAT on the A33. It uses the reserved registers at the beginning
of the BE address space.

> +                       };
> +               };
> +       };
> +
> +       de: display-engine {
> +               compatible = "allwinner,sun8i-a33-display-engine";
> +               allwinner,pipelines = <&fe0>;
> +               status = "disabled";
>         };

Put this node above soc@? Properly sorted that is.

Everything else looks good.

Regards
ChenYu


>  };
>
> --
> 2.9.2
>
Maxime Ripard Sept. 5, 2016, 8:21 p.m. UTC | #2
Hi,

On Fri, Sep 02, 2016 at 02:28:54PM +0800, Chen-Yu Tsai wrote:
> > +               be0: display-backend@01e60000 {
> > +                       compatible = "allwinner,sun8i-a33-display-backend";
> > +                       reg = <0x01e60000 0x10000>;
> 
> Please also list the interrupt, even though we don't use it yet.
> The manual says it's 127 - 32 = 95.

Yep, you're right.

> > +               sat0: sat@01e80000 {
> > +                       compatible = "allwinner,sun8i-a33-sat";
> > +                       reg = <0x01e80000 0x1000>;
> > +                       clocks = <&ccu CLK_BUS_SAT>;
> > +                       resets = <&ccu RST_BUS_SAT>;
> > +
> > +                       ports {
> > +                               #address-cells = <1>;
> > +                               #size-cells = <0>;
> > +
> > +                               sat0_in: port@0 {
> > +                                       #address-cells = <1>;
> > +                                       #size-cells = <0>;
> > +                                       reg = <0>;
> > +
> > +                                       sat0_in_fe0: endpoint@0 {
> > +                                               reg = <0>;
> > +                                               remote-endpoint = <&fe0_out_sat0>;
> > +                                       };
> > +                               };
> > +
> > +                               sat0_out: port@1 {
> > +                                       #address-cells = <1>;
> > +                                       #size-cells = <0>;
> > +                                       reg = <1>;
> > +
> > +                                       sat0_out_be0: endpoint@0 {
> > +                                               reg = <0>;
> > +                                               remote-endpoint = <&be0_in_sat0>;
> > +                                       };
> > +                               };
> 
> I'm worried about the representation here.
> 
> In the user manuals, the SAT is shown as part of the BE.  Look at it
> this way: if it did come before the BE and is independent, we
> shouldn't have to bring the SAT out of reset for simplefb to work.

Indeed.

> For comparison, a similar function unit called "CMU" found on the
> other post-sun6i SoCs has the same function description as SAT on
> the A33. It uses the reserved registers at the beginning of the BE
> address space.

Hmm, ok, so you would essentially, merge the backend and sat nodes?

That wouldn't be very hard to do, i'll do it.

Thanks!
Maxime
Chen-Yu Tsai Sept. 6, 2016, 2:51 a.m. UTC | #3
On Tue, Sep 6, 2016 at 4:21 AM, Maxime Ripard
<maxime.ripard@free-electrons.com> wrote:
> Hi,
>
> On Fri, Sep 02, 2016 at 02:28:54PM +0800, Chen-Yu Tsai wrote:
>> > +               be0: display-backend@01e60000 {
>> > +                       compatible = "allwinner,sun8i-a33-display-backend";
>> > +                       reg = <0x01e60000 0x10000>;
>>
>> Please also list the interrupt, even though we don't use it yet.
>> The manual says it's 127 - 32 = 95.
>
> Yep, you're right.
>
>> > +               sat0: sat@01e80000 {
>> > +                       compatible = "allwinner,sun8i-a33-sat";
>> > +                       reg = <0x01e80000 0x1000>;
>> > +                       clocks = <&ccu CLK_BUS_SAT>;
>> > +                       resets = <&ccu RST_BUS_SAT>;
>> > +
>> > +                       ports {
>> > +                               #address-cells = <1>;
>> > +                               #size-cells = <0>;
>> > +
>> > +                               sat0_in: port@0 {
>> > +                                       #address-cells = <1>;
>> > +                                       #size-cells = <0>;
>> > +                                       reg = <0>;
>> > +
>> > +                                       sat0_in_fe0: endpoint@0 {
>> > +                                               reg = <0>;
>> > +                                               remote-endpoint = <&fe0_out_sat0>;
>> > +                                       };
>> > +                               };
>> > +
>> > +                               sat0_out: port@1 {
>> > +                                       #address-cells = <1>;
>> > +                                       #size-cells = <0>;
>> > +                                       reg = <1>;
>> > +
>> > +                                       sat0_out_be0: endpoint@0 {
>> > +                                               reg = <0>;
>> > +                                               remote-endpoint = <&be0_in_sat0>;
>> > +                                       };
>> > +                               };
>>
>> I'm worried about the representation here.
>>
>> In the user manuals, the SAT is shown as part of the BE.  Look at it
>> this way: if it did come before the BE and is independent, we
>> shouldn't have to bring the SAT out of reset for simplefb to work.
>
> Indeed.
>
>> For comparison, a similar function unit called "CMU" found on the
>> other post-sun6i SoCs has the same function description as SAT on
>> the A33. It uses the reserved registers at the beginning of the BE
>> address space.
>
> Hmm, ok, so you would essentially, merge the backend and sat nodes?
>
> That wouldn't be very hard to do, i'll do it.

Yes. That is what I propose.

ChenYu
diff mbox

Patch

diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index deb0cd613e97..5f9dbd17eb50 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -64,6 +64,42 @@ 
 	};
 
 	soc@01c00000 {
+		tcon0: lcd-controller@01c0c000 {
+			compatible = "allwinner,sun8i-a23-tcon";
+			reg = <0x01c0c000 0x1000>;
+			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_LCD>,
+				 <&ccu CLK_LCD_CH0>;
+			clock-names = "ahb",
+				      "tcon-ch0";
+			clock-output-names = "tcon-pixel-clock";
+			resets = <&ccu RST_BUS_LCD>;
+			reset-names = "lcd";
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				tcon0_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					tcon0_in_drc0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&drc0_out_tcon0>;
+					};
+				};
+
+				tcon0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+				};
+			};
+		};
+
 		crypto: crypto-engine@01c15000 {
 			compatible = "allwinner,sun4i-a10-crypto";
 			reg = <0x01c15000 0x1000>;
@@ -104,6 +140,154 @@ 
 			status = "disabled";
 			#phy-cells = <1>;
 		};
+
+		fe0: display-frontend@01e00000 {
+			compatible = "allwinner,sun8i-a33-display-frontend";
+			reg = <0x01e00000 0x20000>;
+			interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_DE_FE>, <&ccu CLK_DE_FE>,
+				 <&ccu CLK_DRAM_DE_FE>;
+			clock-names = "ahb", "mod",
+				      "ram";
+			resets = <&ccu RST_BUS_DE_FE>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				fe0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					fe0_out_sat0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&sat0_in_fe0>;
+					};
+				};
+			};
+		};
+
+		be0: display-backend@01e60000 {
+			compatible = "allwinner,sun8i-a33-display-backend";
+			reg = <0x01e60000 0x10000>;
+			clocks = <&ccu CLK_BUS_DE_BE>, <&ccu CLK_DE_BE>,
+				 <&ccu CLK_DRAM_DE_BE>;
+			clock-names = "ahb", "mod",
+				      "ram";
+			resets = <&ccu RST_BUS_DE_BE>;
+
+			assigned-clocks = <&ccu CLK_DE_BE>;
+			assigned-clock-rates = <300000000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				be0_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					be0_in_sat0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&sat0_out_be0>;
+					};
+				};
+
+				be0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					be0_out_drc0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&drc0_in_be0>;
+					};
+				};
+			};
+		};
+
+		drc0: drc@01e70000 {
+			compatible = "allwinner,sun8i-a33-drc";
+			reg = <0x01e70000 0x10000>;
+			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_DRC>, <&ccu CLK_DRC>,
+				 <&ccu CLK_DRAM_DRC>;
+			clock-names = "ahb", "mod", "ram";
+			resets = <&ccu RST_BUS_DRC>;
+
+			assigned-clocks = <&ccu CLK_DRC>;
+			assigned-clock-rates = <300000000>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				drc0_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					drc0_in_be0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&be0_out_drc0>;
+					};
+				};
+
+				drc0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					drc0_out_tcon0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&tcon0_in_drc0>;
+					};
+				};
+			};
+		};
+
+		sat0: sat@01e80000 {
+			compatible = "allwinner,sun8i-a33-sat";
+			reg = <0x01e80000 0x1000>;
+			clocks = <&ccu CLK_BUS_SAT>;
+			resets = <&ccu RST_BUS_SAT>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				sat0_in: port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					sat0_in_fe0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&fe0_out_sat0>;
+					};
+				};
+
+				sat0_out: port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					sat0_out_be0: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&be0_in_sat0>;
+					};
+				};
+			};
+		};
+	};
+
+	de: display-engine {
+		compatible = "allwinner,sun8i-a33-display-engine";
+		allwinner,pipelines = <&fe0>;
+		status = "disabled";
 	};
 };