[PATCH v7 0/2] drm: Add Thine THC63LVD1024 LVDS decoder bridge

[PATCH v7 0/2] drm: Add Thine THC63LVD1024 LVDS decoder bridge

[Jacopo Mondi]

Hello,
   this series enables HDMI display on V3M Eagle board.

The series is based on Geert's "renesas-drivers-2018-04-03-v4.16" with
THC63LVD1024 driver on top (cfr. my in review series:
"[PATCH v7 0/2]  drm: Add Thine THC63LVD1024 LVDS decoder bridge")

This series includes some preliminary work from Sergei and Niklas. I have
reworked the two final patches from Niklas to enable DU first, add the LVDS
decoder node, and finally add the ADV7511W chip and enable HDMI output.

A branch for testing is available at:
git://jmondi.org/linux v3m/renesas-drivers-2018-04-03-v4.16/v7-eagle-dts

Thanks
   j

Jacopo Mondi (2):
  arm64: dts: renesas: eagle: Enable DU
  arm64: dts: renesas: eagle: Add LVDS decoder

Niklas Söderlund (2):
  arm64: dts: renesas: r8a77970: add the LVDS instance
  arm64: dts: renesas: eagle: Add ADV7511W and HDMI output

Sergei Shtylyov (3):
  arm64: dts: renesas: r8a77970: add FCPVD support
  arm64: dts: renesas: r8a77970: add VSPD support
  arm64: dts: renesas: r8a77970: add DU support

 arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 89 ++++++++++++++++++++++++++
 arch/arm64/boot/dts/renesas/r8a77970.dtsi      | 73 +++++++++++++++++++++
 2 files changed, 162 insertions(+)

--
2.7.4

[PATCH 1/7] arm64: dts: renesas: r8a77970: add FCPVD support

[Jacopo Mondi]

From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Describe FCPVD0 in the R8A77970 device tree; it will be used by VSPD0 in
the next patch...

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 arch/arm64/boot/dts/renesas/r8a77970.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
index e8358d9..71f466d 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -617,6 +617,14 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 		};
+
+		fcpvd0: fcp@fea27000 {
+			compatible = "renesas,fcpv";
+			reg = <0 0xfea27000 0 0x200>;
+			clocks = <&cpg CPG_MOD 603>;
+			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+			resets = <&cpg 603>;
+		};
 	};
 
 	timer {
-- 
2.7.4

Re: [PATCH 1/7] arm64: dts: renesas: r8a77970: add FCPVD support

[Laurent Pinchart]

Hi Jacopo,

Thank you for the patch.

On Friday, 6 April 2018 16:08:06 EEST Jacopo Mondi wrote:
> From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> 
> Describe FCPVD0 in the R8A77970 device tree; it will be used by VSPD0 in
> the next patch...
> 
> Based on the original (and large) patch by Daisuke Matsushita
> <daisuke.matsushita.ns@hitachi.com>.
> 
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  arch/arm64/boot/dts/renesas/r8a77970.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> b/arch/arm64/boot/dts/renesas/r8a77970.dtsi index e8358d9..71f466d 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> @@ -617,6 +617,14 @@
>  			#address-cells = <1>;
>  			#size-cells = <0>;
>  		};
> +
> +		fcpvd0: fcp@fea27000 {
> +			compatible = "renesas,fcpv";
> +			reg = <0 0xfea27000 0 0x200>;
> +			clocks = <&cpg CPG_MOD 603>;
> +			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> +			resets = <&cpg 603>;
> +		};
>  	};
> 
>  	timer {


-- 
Regards,

Laurent Pinchart



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Re: [PATCH 1/7] arm64: dts: renesas: r8a77970: add FCPVD support

[Simon Horman]

On Fri, Apr 06, 2018 at 04:28:17PM +0300, Laurent Pinchart wrote:
> Hi Jacopo,
> 
> Thank you for the patch.
> 
> On Friday, 6 April 2018 16:08:06 EEST Jacopo Mondi wrote:
> > From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> > 
> > Describe FCPVD0 in the R8A77970 device tree; it will be used by VSPD0 in
> > the next patch...
> > 
> > Based on the original (and large) patch by Daisuke Matsushita
> > <daisuke.matsushita.ns@hitachi.com>.
> > 
> > Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Thanks, applied for v4.18.

[PATCH 2/7] arm64: dts: renesas: r8a77970: add VSPD support

[Jacopo Mondi]

From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Describe VSPD0 in the R8A77970 device tree; it will be used by DU in
the next patch...

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 arch/arm64/boot/dts/renesas/r8a77970.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
index 71f466d..db06c94 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -625,6 +625,16 @@
 			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
 			resets = <&cpg 603>;
 		};
+
+		vspd0: vsp@fea20000 {
+			compatible = "renesas,vsp2";
+			reg = <0 0xfea20000 0 0x4000>;
+			interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 623>;
+			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+			resets = <&cpg 623>;
+			renesas,fcp = <&fcpvd0>;
+		};
 	};
 
 	timer {
-- 
2.7.4

Re: [PATCH 2/7] arm64: dts: renesas: r8a77970: add VSPD support

[Laurent Pinchart]

On Friday, 6 April 2018 16:08:07 EEST Jacopo Mondi wrote:
> From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> 
> Describe VSPD0 in the R8A77970 device tree; it will be used by DU in
> the next patch...
> 
> Based on the original (and large) patch by Daisuke Matsushita
> <daisuke.matsushita.ns@hitachi.com>.
> 
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> ---
>  arch/arm64/boot/dts/renesas/r8a77970.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> b/arch/arm64/boot/dts/renesas/r8a77970.dtsi index 71f466d..db06c94 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> @@ -625,6 +625,16 @@
>  			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
>  			resets = <&cpg 603>;
>  		};
> +
> +		vspd0: vsp@fea20000 {
> +			compatible = "renesas,vsp2";
> +			reg = <0 0xfea20000 0 0x4000>;

You need to extend the memory region to include the V6_CLUTn_TBL* registers. I 
would recommend simply extending it to 0x8000 as all other VSP instances, even 
if the registers at 0x7000-0x7fff are not implemented.

Apart from that,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> +			interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&cpg CPG_MOD 623>;
> +			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> +			resets = <&cpg 623>;
> +			renesas,fcp = <&fcpvd0>;
> +		};
>  	};
> 
>  	timer {

-- 
Regards,

Laurent Pinchart



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Re: [PATCH 2/7] arm64: dts: renesas: r8a77970: add VSPD support

[Simon Horman]

On Fri, Apr 06, 2018 at 04:33:21PM +0300, Laurent Pinchart wrote:
> On Friday, 6 April 2018 16:08:07 EEST Jacopo Mondi wrote:
> > From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> > 
> > Describe VSPD0 in the R8A77970 device tree; it will be used by DU in
> > the next patch...
> > 
> > Based on the original (and large) patch by Daisuke Matsushita
> > <daisuke.matsushita.ns@hitachi.com>.
> > 
> > Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> > Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> > ---
> >  arch/arm64/boot/dts/renesas/r8a77970.dtsi | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > b/arch/arm64/boot/dts/renesas/r8a77970.dtsi index 71f466d..db06c94 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> > @@ -625,6 +625,16 @@
> >  			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> >  			resets = <&cpg 603>;
> >  		};
> > +
> > +		vspd0: vsp@fea20000 {
> > +			compatible = "renesas,vsp2";
> > +			reg = <0 0xfea20000 0 0x4000>;
> 
> You need to extend the memory region to include the V6_CLUTn_TBL* registers. I 
> would recommend simply extending it to 0x8000 as all other VSP instances, even 
> if the registers at 0x7000-0x7fff are not implemented.
> 
> Apart from that,
> 
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

I applied the first patch of this series. Please update this,
and any subsequent patches as appropriate and then repost the series
without the first patch.

Thanks

[PATCH 3/7] arm64: dts: renesas: r8a77970: add DU support

[Jacopo Mondi]

From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

Define the generic R8A77970 part of the DU device node.

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 arch/arm64/boot/dts/renesas/r8a77970.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
index db06c94..e649e86 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -635,6 +635,34 @@
 			resets = <&cpg 623>;
 			renesas,fcp = <&fcpvd0>;
 		};
+
+		du: display@feb00000 {
+			compatible = "renesas,du-r8a77970";
+			reg = <0 0xfeb00000 0 0x80000>;
+			interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 724>;
+			clock-names = "du.0";
+			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+			vsps = <&vspd0>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					du_out_rgb: endpoint {
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+					du_out_lvds: endpoint {
+					};
+				};
+			};
+		};
 	};
 
 	timer {
-- 
2.7.4

Re: [PATCH 3/7] arm64: dts: renesas: r8a77970: add DU support

[Laurent Pinchart]

Hi Jacopo,

Thank you for the patch.

On Friday, 6 April 2018 16:08:08 EEST Jacopo Mondi wrote:
> From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> 
> Define the generic R8A77970 part of the DU device node.
> 
> Based on the original (and large) patch by Daisuke Matsushita
> <daisuke.matsushita.ns@hitachi.com>.
> 
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  arch/arm64/boot/dts/renesas/r8a77970.dtsi | 28 ++++++++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> b/arch/arm64/boot/dts/renesas/r8a77970.dtsi index db06c94..e649e86 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> @@ -635,6 +635,34 @@
>  			resets = <&cpg 623>;
>  			renesas,fcp = <&fcpvd0>;
>  		};
> +
> +		du: display@feb00000 {
> +			compatible = "renesas,du-r8a77970";
> +			reg = <0 0xfeb00000 0 0x80000>;
> +			interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&cpg CPG_MOD 724>;
> +			clock-names = "du.0";
> +			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> +			vsps = <&vspd0>;
> +			status = "disabled";
> +
> +			ports {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +					du_out_rgb: endpoint {
> +					};
> +				};
> +
> +				port@1 {
> +					reg = <1>;
> +					du_out_lvds: endpoint {
> +					};
> +				};
> +			};
> +		};
>  	};
> 
>  	timer {

-- 
Regards,

Laurent Pinchart



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[PATCH 4/7] arm64: dts: renesas: r8a77970: add the LVDS instance

[Jacopo Mondi]

From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Add the LVDS device to r8a77970.dtsi in a disabled state. Also connect
the it to the LVDS output of the DU. While at it align the endpoint name
of the du to du_out_lvds0 which is used in other Renesas DTS files to
describe this link.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 arch/arm64/boot/dts/renesas/r8a77970.dtsi | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
index e649e86..b48d62c 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -658,7 +658,34 @@
 
 				port@1 {
 					reg = <1>;
-					du_out_lvds: endpoint {
+					du_out_lvds0: endpoint {
+						remote-endpoint = <&lvds0_in>;
+					};
+				};
+			};
+		};
+
+		lvds0: lvds@feb90000 {
+			compatible = "renesas,r8a77970-lvds";
+			reg = <0 0xfeb90000 0 0x14>;
+			clocks = <&cpg CPG_MOD 727>;
+			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+			resets = <&cpg 727>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					lvds0_in: endpoint {
+						remote-endpoint = <&du_out_lvds0>;
+					};
+				};
+				port@1 {
+					reg = <1>;
+					lvds0_out: endpoint {
 					};
 				};
 			};
-- 
2.7.4

Re: [PATCH 4/7] arm64: dts: renesas: r8a77970: add the LVDS instance

[Laurent Pinchart]

Hi Jacopo,

Thank you for the patch.

On Friday, 6 April 2018 16:08:09 EEST Jacopo Mondi wrote:
> From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> 
> Add the LVDS device to r8a77970.dtsi in a disabled state. Also connect
> the it to the LVDS output of the DU. While at it align the endpoint name
> of the du to du_out_lvds0 which is used in other Renesas DTS files to
> describe this link.

The endpoint could be renamed in patch 3/7, but it's not a big deal.

> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  arch/arm64/boot/dts/renesas/r8a77970.dtsi | 29 +++++++++++++++++++++++++++-
>  1 file changed, 28 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> b/arch/arm64/boot/dts/renesas/r8a77970.dtsi index e649e86..b48d62c 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> @@ -658,7 +658,34 @@
> 
>  				port@1 {
>  					reg = <1>;
> -					du_out_lvds: endpoint {
> +					du_out_lvds0: endpoint {
> +						remote-endpoint = <&lvds0_in>;
> +					};
> +				};
> +			};
> +		};
> +
> +		lvds0: lvds@feb90000 {
> +			compatible = "renesas,r8a77970-lvds";
> +			reg = <0 0xfeb90000 0 0x14>;
> +			clocks = <&cpg CPG_MOD 727>;
> +			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> +			resets = <&cpg 727>;
> +			status = "disabled";
> +
> +			ports {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +					lvds0_in: endpoint {
> +						remote-endpoint = <&du_out_lvds0>;
> +					};
> +				};
> +				port@1 {
> +					reg = <1>;
> +					lvds0_out: endpoint {
>  					};
>  				};
>  			};

-- 
Regards,

Laurent Pinchart



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[PATCH 5/7] arm64: dts: renesas: eagle: Enable DU

[Jacopo Mondi]

Enable DU for Renesas R-Car V3M Eagle board.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
 arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
index 3c5f598..144b847 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
@@ -76,6 +76,11 @@
 		function = "i2c0";
 	};
 
+	du_pins: du {
+		groups = "du_rgb666", "du_sync", "du_oddf", "du_clk_out";
+		function = "du";
+	};
+
 	scif0_pins: scif0 {
 		groups = "scif0_data";
 		function = "scif0";
@@ -93,3 +98,9 @@
 
 	status = "okay";
 };
+
+&du {
+	pinctrl-0 = <&du_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
-- 
2.7.4

Re: [PATCH 5/7] arm64: dts: renesas: eagle: Enable DU

[Laurent Pinchart]

Hi Jacopo,

Thank you for the patch.

On Friday, 6 April 2018 16:08:10 EEST Jacopo Mondi wrote:
> Enable DU for Renesas R-Car V3M Eagle board.
> 
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> ---
>  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 3c5f598..144b847
> 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> @@ -76,6 +76,11 @@
>  		function = "i2c0";
>  	};
> 
> +	du_pins: du {
> +		groups = "du_rgb666", "du_sync", "du_oddf", "du_clk_out";
> +		function = "du";
> +	};

As far as I can tell the DU parallel output isn't used on the Eagle board, but 
is used on the Eagle expansion board. I would move this to patch 7/7 in this 
series.

>  	scif0_pins: scif0 {
>  		groups = "scif0_data";
>  		function = "scif0";
> @@ -93,3 +98,9 @@
> 
>  	status = "okay";
>  };
> +
> +&du {
> +	pinctrl-0 = <&du_pins>;
> +	pinctrl-names = "default";

These two properties should be moved to patch 7/7 too.

> +	status = "okay";
> +};

There's little use for enabling the DU in DT if you have no output port 
described. I'd move this to patch 6/7.

-- 
Regards,

Laurent Pinchart



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Re: [PATCH 5/7] arm64: dts: renesas: eagle: Enable DU

[Laurent Pinchart]

Hi again,

On Friday, 6 April 2018 16:45:16 EEST Laurent Pinchart wrote:
> On Friday, 6 April 2018 16:08:10 EEST Jacopo Mondi wrote:
> > Enable DU for Renesas R-Car V3M Eagle board.
> > 
> > Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> > ---
> > 
> >  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 11 +++++++++++
> >  1 file changed, 11 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> > b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 3c5f598..144b847
> > 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> > +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> > @@ -76,6 +76,11 @@
> > 
> >  		function = "i2c0";
> >  	
> >  	};
> > 
> > +	du_pins: du {
> > +		groups = "du_rgb666", "du_sync", "du_oddf", "du_clk_out";
> > +		function = "du";
> > +	};
> 
> As far as I can tell the DU parallel output isn't used on the Eagle board,
> but is used on the Eagle expansion board. I would move this to patch 7/7 in
> this series.

My bad, patch 7/7 describes the on-board HDMI encoder, not the one on the 
expansion board. I would thus drop pinmux completely for now until we add 
support for the expansion board.

> >  	scif0_pins: scif0 {
> >  	
> >  		groups = "scif0_data";
> >  		function = "scif0";
> > 
> > @@ -93,3 +98,9 @@
> > 
> >  	status = "okay";
> >  
> >  };
> > 
> > +
> > +&du {
> > +	pinctrl-0 = <&du_pins>;
> > +	pinctrl-names = "default";
> 
> These two properties should be moved to patch 7/7 too.

So this should be removed.

> > +	status = "okay";
> > +};
> 
> There's little use for enabling the DU in DT if you have no output port
> described. I'd move this to patch 6/7.

And I'd merge the status attribute and patches 6/7 and 7/7 all together.

-- 
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Laurent Pinchart



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[PATCH 6/7] arm64: dts: renesas: eagle: Add LVDS decoder

[Jacopo Mondi]

The R-Car V3M Eagle board includes a transparent THC63LVD1024 LVDS
decoder, connected to the on-chip LVDS encoder output on one side
and to the not-yet-described HDMI encoder ADV7511W on the other one.

As the decoder does not need any configuration it has been so-far
omitted from DTS. Now that a driver is available, describe it in DT
as well.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
---
 arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 29 ++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
index 144b847..9d0e65d 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
@@ -31,6 +31,23 @@
 		/* first 128MB is reserved for secure area. */
 		reg = <0x0 0x48000000 0x0 0x38000000>;
 	};
+
+	thc63lvd1024: lvds-decoder {
+		compatible = "thine,thc63lvd1024";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				thc63lvd1024_in: endpoint {
+					remote-endpoint = <&lvds0_out>;
+				};
+			};
+		};
+	};
 };
 
 &avb {
@@ -104,3 +121,15 @@
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&lvds0 {
+	status = "okay";
+
+	ports {
+		port@1 {
+			lvds0_out: endpoint {
+				remote-endpoint = <&thc63lvd1024_in>;
+			};
+		};
+	};
+};
-- 
2.7.4

Re: [PATCH 6/7] arm64: dts: renesas: eagle: Add LVDS decoder

[Laurent Pinchart]

Hi Jacopo,

Thank you for the patch.

On Friday, 6 April 2018 16:08:11 EEST Jacopo Mondi wrote:
> The R-Car V3M Eagle board includes a transparent THC63LVD1024 LVDS
> decoder, connected to the on-chip LVDS encoder output on one side
> and to the not-yet-described HDMI encoder ADV7511W on the other one.
> 
> As the decoder does not need any configuration it has been so-far
> omitted from DTS. Now that a driver is available, describe it in DT
> as well.

As explained in my review of patch 5/7, I'd merge 5/7, 6/7 and 7/7 all 
together as there's little use for enabling the LVDS decoder if there's 
nothing connected at its output. Note also how this patch alone, without 7/7, 
wouldn't comply with the LVDS decoder DT bindings that state that port@2 is 
mandatory.

> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
> ---
>  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 29 +++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 144b847..9d0e65d
> 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> @@ -31,6 +31,23 @@
>  		/* first 128MB is reserved for secure area. */
>  		reg = <0x0 0x48000000 0x0 0x38000000>;
>  	};
> +
> +	thc63lvd1024: lvds-decoder {
> +		compatible = "thine,thc63lvd1024";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				thc63lvd1024_in: endpoint {
> +					remote-endpoint = <&lvds0_out>;
> +				};
> +			};
> +		};
> +	};
>  };
> 
>  &avb {
> @@ -104,3 +121,15 @@
>  	pinctrl-names = "default";
>  	status = "okay";
>  };
> +
> +&lvds0 {
> +	status = "okay";
> +
> +	ports {
> +		port@1 {
> +			lvds0_out: endpoint {
> +				remote-endpoint = <&thc63lvd1024_in>;
> +			};
> +		};
> +	};
> +};

-- 
Regards,

Laurent Pinchart



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[PATCH 7/7] arm64: dts: renesas: eagle: Add ADV7511W and HDMI output

[Jacopo Mondi]

From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Enable HDMI output adding the HDMI connector and the ADV7511W, connected
to THC63LVD1024 LVDS decoder output.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
 arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 51 +++++++++++++++++++++++++-
 1 file changed, 50 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
index 9d0e65d..e9f7b83 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
@@ -32,6 +32,17 @@
 		reg = <0x0 0x48000000 0x0 0x38000000>;
 	};
 
+	hdmi-out {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con_out: endpoint {
+				remote-endpoint = <&adv7511_out>;
+			};
+		};
+	};
+
 	thc63lvd1024: lvds-decoder {
 		compatible = "thine,thc63lvd1024";
 
@@ -41,11 +52,17 @@
 
 			port@0 {
 				reg = <0>;
-
 				thc63lvd1024_in: endpoint {
 					remote-endpoint = <&lvds0_out>;
 				};
 			};
+
+			port@2 {
+				reg = <2>;
+				thc63lvd1024_out: endpoint {
+					remote-endpoint = <&adv7511_in>;
+				};
+			};
 		};
 	};
 };
@@ -85,6 +102,38 @@
 		gpio-controller;
 		#gpio-cells = <2>;
 	};
+
+	hdmi@39 {
+		compatible = "adi,adv7511w";
+		reg = <0x39>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
+
+		adi,input-depth = <8>;
+		adi,input-colorspace = "rgb";
+		adi,input-clock = "1x";
+		adi,input-style = <1>;
+		adi,input-justification = "evenly";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				adv7511_in: endpoint {
+					remote-endpoint = <&thc63lvd1024_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				adv7511_out: endpoint {
+					remote-endpoint = <&hdmi_con_out>;
+				};
+			};
+		};
+	};
 };
 
 &pfc {
-- 
2.7.4

Re: [PATCH 7/7] arm64: dts: renesas: eagle: Add ADV7511W and HDMI output

[Laurent Pinchart]

Hi Jacopo,

Thank you for the patch.

On Friday, 6 April 2018 16:08:12 EEST Jacopo Mondi wrote:
> From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> 
> Enable HDMI output adding the HDMI connector and the ADV7511W, connected
> to THC63LVD1024 LVDS decoder output.
> 
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> ---
>  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 51 ++++++++++++++++++++++-
>  1 file changed, 50 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 9d0e65d..e9f7b83
> 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> @@ -32,6 +32,17 @@
>  		reg = <0x0 0x48000000 0x0 0x38000000>;
>  	};
> 
> +	hdmi-out {
> +		compatible = "hdmi-connector";
> +		type = "a";
> +
> +		port {
> +			hdmi_con_out: endpoint {
> +				remote-endpoint = <&adv7511_out>;
> +			};
> +		};
> +	};
> +
>  	thc63lvd1024: lvds-decoder {
>  		compatible = "thine,thc63lvd1024";
> 
> @@ -41,11 +52,17 @@
> 
>  			port@0 {
>  				reg = <0>;
> -

This is unrelated, if you don't want a blank line here remove it from patch 
6/7 :-)

>  				thc63lvd1024_in: endpoint {
>  					remote-endpoint = <&lvds0_out>;
>  				};
>  			};
> +
> +			port@2 {
> +				reg = <2>;
> +				thc63lvd1024_out: endpoint {
> +					remote-endpoint = <&adv7511_in>;
> +				};
> +			};
>  		};
>  	};
>  };
> @@ -85,6 +102,38 @@
>  		gpio-controller;
>  		#gpio-cells = <2>;
>  	};
> +
> +	hdmi@39 {
> +		compatible = "adi,adv7511w";
> +		reg = <0x39>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
> +
> +		adi,input-depth = <8>;
> +		adi,input-colorspace = "rgb";
> +		adi,input-clock = "1x";
> +		adi,input-style = <1>;
> +		adi,input-justification = "evenly";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				adv7511_in: endpoint {
> +					remote-endpoint = <&thc63lvd1024_out>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +				adv7511_out: endpoint {
> +					remote-endpoint = <&hdmi_con_out>;
> +				};
> +			};
> +		};
> +	};
>  };
> 
>  &pfc {

With patches 5/7, 6/7 and 7/7 merged together and the pinmux removed,

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

-- 
Regards,

Laurent Pinchart



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Re: [PATCH 7/7] arm64: dts: renesas: eagle: Add ADV7511W and HDMI output

[jacopo mondi]

[-- Attachment #1.1: Type: text/plain, Size: 3072 bytes --]

Hi Laurent,

On Fri, Apr 06, 2018 at 04:51:11PM +0300, Laurent Pinchart wrote:
> Hi Jacopo,
>
> Thank you for the patch.
>
> On Friday, 6 April 2018 16:08:12 EEST Jacopo Mondi wrote:
> > From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> >
> > Enable HDMI output adding the HDMI connector and the ADV7511W, connected
> > to THC63LVD1024 LVDS decoder output.
> >
> > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> > Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> > ---
> >  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 51 ++++++++++++++++++++++-
> >  1 file changed, 50 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> > b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 9d0e65d..e9f7b83
> > 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> > +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
> > @@ -32,6 +32,17 @@
> >  		reg = <0x0 0x48000000 0x0 0x38000000>;
> >  	};
> >
> > +	hdmi-out {
> > +		compatible = "hdmi-connector";
> > +		type = "a";
> > +
> > +		port {
> > +			hdmi_con_out: endpoint {
> > +				remote-endpoint = <&adv7511_out>;
> > +			};
> > +		};
> > +	};
> > +
> >  	thc63lvd1024: lvds-decoder {
> >  		compatible = "thine,thc63lvd1024";
> >
> > @@ -41,11 +52,17 @@
> >
> >  			port@0 {
> >  				reg = <0>;
> > -
>
> This is unrelated, if you don't want a blank line here remove it from patch
> 6/7 :-)

No, you're right, this is a leftover from me splitting a single a
patch in 3. According to your comments on other patches in the series
I shouldn't have done that to begin with :)

Thanks
  j

>
> >  				thc63lvd1024_in: endpoint {
> >  					remote-endpoint = <&lvds0_out>;
> >  				};
> >  			};
> > +
> > +			port@2 {
> > +				reg = <2>;
> > +				thc63lvd1024_out: endpoint {
> > +					remote-endpoint = <&adv7511_in>;
> > +				};
> > +			};
> >  		};
> >  	};
> >  };
> > @@ -85,6 +102,38 @@
> >  		gpio-controller;
> >  		#gpio-cells = <2>;
> >  	};
> > +
> > +	hdmi@39 {
> > +		compatible = "adi,adv7511w";
> > +		reg = <0x39>;
> > +		interrupt-parent = <&gpio1>;
> > +		interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
> > +
> > +		adi,input-depth = <8>;
> > +		adi,input-colorspace = "rgb";
> > +		adi,input-clock = "1x";
> > +		adi,input-style = <1>;
> > +		adi,input-justification = "evenly";
> > +
> > +		ports {
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			port@0 {
> > +				reg = <0>;
> > +				adv7511_in: endpoint {
> > +					remote-endpoint = <&thc63lvd1024_out>;
> > +				};
> > +			};
> > +
> > +			port@1 {
> > +				reg = <1>;
> > +				adv7511_out: endpoint {
> > +					remote-endpoint = <&hdmi_con_out>;
> > +				};
> > +			};
> > +		};
> > +	};
> >  };
> >
> >  &pfc {
>
> With patches 5/7, 6/7 and 7/7 merged together and the pinmux removed,
>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
>
> --
> Regards,
>
> Laurent Pinchart
>
>
>

[-- Attachment #1.2: signature.asc --]
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[-- Attachment #2: Type: text/plain, Size: 160 bytes --]

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Re: [PATCH v7 0/2] drm: Add Thine THC63LVD1024 LVDS decoder bridge

[jacopo mondi]

[-- Attachment #1.1: Type: text/plain, Size: 1547 bytes --]

Sorry for the mess

subject should have been

   Subject: [PATCH 0/7] V3M-Eagle display enablement

I copied the wrong one from another cover letter...

On Fri, Apr 06, 2018 at 03:08:05PM +0200, Jacopo Mondi wrote:
> Hello,
>    this series enables HDMI display on V3M Eagle board.
>
> The series is based on Geert's "renesas-drivers-2018-04-03-v4.16" with
> THC63LVD1024 driver on top (cfr. my in review series:
> "[PATCH v7 0/2]  drm: Add Thine THC63LVD1024 LVDS decoder bridge")
>
> This series includes some preliminary work from Sergei and Niklas. I have
> reworked the two final patches from Niklas to enable DU first, add the LVDS
> decoder node, and finally add the ADV7511W chip and enable HDMI output.
>
> A branch for testing is available at:
> git://jmondi.org/linux v3m/renesas-drivers-2018-04-03-v4.16/v7-eagle-dts
>
> Thanks
>    j
>
> Jacopo Mondi (2):
>   arm64: dts: renesas: eagle: Enable DU
>   arm64: dts: renesas: eagle: Add LVDS decoder
>
> Niklas Söderlund (2):
>   arm64: dts: renesas: r8a77970: add the LVDS instance
>   arm64: dts: renesas: eagle: Add ADV7511W and HDMI output
>
> Sergei Shtylyov (3):
>   arm64: dts: renesas: r8a77970: add FCPVD support
>   arm64: dts: renesas: r8a77970: add VSPD support
>   arm64: dts: renesas: r8a77970: add DU support
>
>  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 89 ++++++++++++++++++++++++++
>  arch/arm64/boot/dts/renesas/r8a77970.dtsi      | 73 +++++++++++++++++++++
>  2 files changed, 162 insertions(+)
>
> --
> 2.7.4
>

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Re: [PATCH v7 0/2] drm: Add Thine THC63LVD1024 LVDS decoder bridge

[Laurent Pinchart]

Hi Jacopo,

On Friday, 6 April 2018 16:08:05 EEST Jacopo Mondi wrote:
> Hello,
>    this series enables HDMI display on V3M Eagle board.
> 
> The series is based on Geert's "renesas-drivers-2018-04-03-v4.16" with
> THC63LVD1024 driver on top (cfr. my in review series:
> "[PATCH v7 0/2]  drm: Add Thine THC63LVD1024 LVDS decoder bridge")

This isn't a good base for development, as you would pull way too many 
dependencies in. Could you please base v8 on top of v4.17-rc1 (or if you get 
to post it before v4.17-rc1 gets merged, you can use Linus' master, as the 
ARM64 DT pull requests for v4.17-rc1 have been merged) ? It will then be ready 
for Simon to pull in his v4.18 branch.

> This series includes some preliminary work from Sergei and Niklas. I have
> reworked the two final patches from Niklas to enable DU first, add the LVDS
> decoder node, and finally add the ADV7511W chip and enable HDMI output.
> 
> A branch for testing is available at:
> git://jmondi.org/linux v3m/renesas-drivers-2018-04-03-v4.16/v7-eagle-dts
> 
> Thanks
>    j
> 
> Jacopo Mondi (2):
>   arm64: dts: renesas: eagle: Enable DU
>   arm64: dts: renesas: eagle: Add LVDS decoder
> 
> Niklas Söderlund (2):
>   arm64: dts: renesas: r8a77970: add the LVDS instance
>   arm64: dts: renesas: eagle: Add ADV7511W and HDMI output
> 
> Sergei Shtylyov (3):
>   arm64: dts: renesas: r8a77970: add FCPVD support
>   arm64: dts: renesas: r8a77970: add VSPD support
>   arm64: dts: renesas: r8a77970: add DU support
> 
>  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 89 +++++++++++++++++++++++
>  arch/arm64/boot/dts/renesas/r8a77970.dtsi      | 73 +++++++++++++++++++++
>  2 files changed, 162 insertions(+)
> 

-- 
Regards,

Laurent Pinchart



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Re: [PATCH v7 0/2] drm: Add Thine THC63LVD1024 LVDS decoder bridge

[jacopo mondi]

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Hi Laurent,

On Fri, Apr 06, 2018 at 04:53:43PM +0300, Laurent Pinchart wrote:
> Hi Jacopo,
>
> On Friday, 6 April 2018 16:08:05 EEST Jacopo Mondi wrote:
> > Hello,
> >    this series enables HDMI display on V3M Eagle board.
> >
> > The series is based on Geert's "renesas-drivers-2018-04-03-v4.16" with
> > THC63LVD1024 driver on top (cfr. my in review series:
> > "[PATCH v7 0/2]  drm: Add Thine THC63LVD1024 LVDS decoder bridge")
>
> This isn't a good base for development, as you would pull way too many
> dependencies in. Could you please base v8 on top of v4.17-rc1 (or if you get
> to post it before v4.17-rc1 gets merged, you can use Linus' master, as the
> ARM64 DT pull requests for v4.17-rc1 have been merged) ? It will then be ready
> for Simon to pull in his v4.18 branch.

I used renesas-drivers as it already contains partial r8a77970 support which
is not there in v4.16 (PFC, GPIO, SCIF...)

I should wait for v4.17-rc1 to come out and re-propose on top of that
probably.

>
> > This series includes some preliminary work from Sergei and Niklas. I have
> > reworked the two final patches from Niklas to enable DU first, add the LVDS
> > decoder node, and finally add the ADV7511W chip and enable HDMI output.
> >
> > A branch for testing is available at:
> > git://jmondi.org/linux v3m/renesas-drivers-2018-04-03-v4.16/v7-eagle-dts
> >
> > Thanks
> >    j
> >
> > Jacopo Mondi (2):
> >   arm64: dts: renesas: eagle: Enable DU
> >   arm64: dts: renesas: eagle: Add LVDS decoder
> >
> > Niklas Söderlund (2):
> >   arm64: dts: renesas: r8a77970: add the LVDS instance
> >   arm64: dts: renesas: eagle: Add ADV7511W and HDMI output
> >
> > Sergei Shtylyov (3):
> >   arm64: dts: renesas: r8a77970: add FCPVD support
> >   arm64: dts: renesas: r8a77970: add VSPD support
> >   arm64: dts: renesas: r8a77970: add DU support
> >
> >  arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 89 +++++++++++++++++++++++
> >  arch/arm64/boot/dts/renesas/r8a77970.dtsi      | 73 +++++++++++++++++++++
> >  2 files changed, 162 insertions(+)
> >
>
> --
> Regards,
>
> Laurent Pinchart
>
>
>

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[PATCH v7 0/2] drm: Add Thine THC63LVD1024 LVDS decoder bridge

[Jacopo Mondi]

Hello,
    this new version moves the driver and its bindings to use semi-standard
names for powerdown and output enable GPIOs, as result of the discussion with
Laurent, Vladimir and Rob. I kept the actual pin names in the bindings
description for reference, even if there are no huge ambiguities on which
chip pin is actually an enable and which one a power down.

I have reworked the regulator management, making the 'vcc' supply the only
requested one, and all other optional supplies have been removed as suggested
by Laurent. It is unlikely a dedicated regulator is to be installed for each
power supply, and in case some HW design requires this, it's an easy add to be
implemented in future.

Contrary to what discussed on v6, the 'vcc' supply is still described
as optional in dt bindings, and the driver is now using
'regulator_get(NORMAL_GET)' in place of the _optional() version that was used
before. With the 'NORMAL_GET' version the regulator core provides a dummy
regulator in case an actual one is not available. This simplifies integration
in designs where the chip power supplies are directly connected to some power
rail. At the same time it makes easier to forget to add a regulator if there's
actually one there, and someone could find herself wondering why the chip does
not work even if probe completes properly.

I removed the Eagle display enablement patch from the series, I'll send it
separately squashed on top of Niklas' series that addresses the issue.

Thanks
   j

v6 -> v7:
- Use semi-standard names for powerdown and output enable GPIOs as suggested
  by Rob and Vladimir
- Use 'regulator_get()' not the optional version, and list only 'vcc' as
  requested supply
- Addressed Laurent's review comments and removed Eagle display enablement patch
  to be sent separately

v5 -> v6:
- Drop check for CONFIG_OF as it is a Kconfig dependency
- Add Niklas Reviewed-by tags
- List [3/3] depenencies below commit message to ease integration

v4 -> v5:
- Fix punctuation in bindings documentation
- Add small statement to bindings document to clarify the chip has no
  control bus
- Print regulator name in enable/disable routines error path
- Add Andrzej Reviewed-by tag

v3 -> v4:
- Rename permutations of "pdwn" to just "pdwn" everywhere in the series
- Improve power enable/disable routines as suggested by Andrzej and Sergei
- Change "pdwn" gpio initialization to use the logical output level
- Change Kconfig description

v2 -> v3:
- Drop support for "lvds-decoder" and make the driver THC63LVD1024 specific
-- Rework bindings to describe multiple input/output ports
-- Rename driver and remove "lvds-decoder" references
-- Rework Eagle DTS to use new bindings

v1 -> v2:
- Drop support for THC63LVD1024

Jacopo Mondi (2):
  dt-bindings: display: bridge: Document THC63LVD1024 LVDS decoder
  drm: bridge: Add thc63lvd1024 LVDS decoder driver

 .../bindings/display/bridge/thine,thc63lvd1024.txt |  60 ++++++
 drivers/gpu/drm/bridge/Kconfig                     |   6 +
 drivers/gpu/drm/bridge/Makefile                    |   1 +
 drivers/gpu/drm/bridge/thc63lvd1024.c              | 212 +++++++++++++++++++++
 4 files changed, 279 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/thine,thc63lvd1024.txt
 create mode 100644 drivers/gpu/drm/bridge/thc63lvd1024.c

--
2.7.4