[PATCH 0/3] RZ/G2L: Add CRU, CSI support

[PATCH 0/3] RZ/G2L: Add CRU, CSI support

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Hi All,

This patch series adds support for CRU and CSI support to RZ/G2L SoC
and enables it on the RZ/G2L SMARC EVK. Also ov5645 node is added which
connects to the CSI2 node.

Note, this patch series applies on top of [0].

[0] https://patchwork.kernel.org/project/linux-renesas-soc/cover/20230131223529.11905-1-prabhakar.mahadev-lad.rj@bp.renesas.com/

Cheers,
Prabhakar

Lad Prabhakar (3):
  arm64: dts: renesas: r9a07g044: Add CSI and CRU nodes
  arm64: dts: renesas: rzg2l-smarc: Add OV5645 node
  arm64: dts: renesas: rzg2l-smarc: Enable CRU and CSI nodes

 arch/arm64/boot/dts/renesas/r9a07g044.dtsi    | 79 +++++++++++++++++++
 .../boot/dts/renesas/r9a07g044l2-smarc.dts    |  5 ++
 .../boot/dts/renesas/rz-smarc-common.dtsi     | 76 ++++++++++++++++++
 3 files changed, 160 insertions(+)

-- 
2.25.1

[PATCH 1/3] arm64: dts: renesas: r9a07g044: Add CSI and CRU nodes

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Add CSI and CRU nodes r9a07g044 (RZ/G2L) SoC DTSI.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a07g044.dtsi | 79 ++++++++++++++++++++++
 1 file changed, 79 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a07g044.dtsi b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
index 9a3e18abae39..68bd70210d08 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi
@@ -627,6 +627,85 @@ sbc: spi@10060000 {
 			status = "disabled";
 		};
 
+		cru: video@10830000 {
+			compatible = "renesas,r9a07g044-cru", "renesas,rzg2l-cru";
+			reg = <0 0x10830000 0 0x400>;
+			clocks = <&cpg CPG_MOD SOC_PREFIX(CRU_VCLK)>,
+				 <&cpg CPG_MOD SOC_PREFIX(CRU_PCLK)>,
+				 <&cpg CPG_MOD SOC_PREFIX(CRU_ACLK)>;
+			clock-names = "video", "apb", "axi";
+			interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "image_conv", "image_conv_err", "axi_mst_err";
+			resets = <&cpg SOC_PREFIX(CRU_PRESETN)>,
+				 <&cpg SOC_PREFIX(CRU_ARESETN)>;
+			reset-names = "presetn", "aresetn";
+			power-domains = <&cpg>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					reg = <0>;
+					cruparallel: endpoint@0 {
+						reg = <0>;
+					};
+				};
+
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					reg = <1>;
+					crucsi2: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&csi2cru>;
+					};
+				};
+			};
+		};
+
+		csi2: csi2@10830400 {
+			compatible = "renesas,r9a07g044-csi2", "renesas,rzg2l-csi2";
+			reg = <0 0x10830400 0 0xfc00>;
+			interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD SOC_PREFIX(CRU_SYSCLK)>,
+				 <&cpg CPG_MOD SOC_PREFIX(CRU_VCLK)>,
+				 <&cpg CPG_MOD SOC_PREFIX(CRU_PCLK)>;
+			clock-names = "system", "video", "apb";
+			resets = <&cpg SOC_PREFIX(CRU_PRESETN)>,
+				 <&cpg SOC_PREFIX(CRU_CMN_RSTB)>;
+			reset-names = "presetn", "cmn-rstb";
+			power-domains = <&cpg>;
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+				};
+
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+
+					csi2cru: endpoint@0 {
+						reg = <0>;
+						remote-endpoint = <&crucsi2>;
+					};
+				};
+			};
+		};
+
 		cpg: clock-controller@11010000 {
 			compatible = "renesas,r9a07g044-cpg";
 			reg = <0 0x11010000 0 0x10000>;
-- 
2.25.1

[PATCH 2/3] arm64: dts: renesas: rzg2l-smarc: Add OV5645 node

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

OV5645 sensor can be connected to the CN1 connector on the
carrier board. This patch adds the ov5645 node under i2c0 node.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../boot/dts/renesas/r9a07g044l2-smarc.dts    |  4 ++
 .../boot/dts/renesas/rz-smarc-common.dtsi     | 53 +++++++++++++++++++
 2 files changed, 57 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
index bc2af6c92ccd..275e760324f3 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
+++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
@@ -6,6 +6,10 @@
  */
 
 /dts-v1/;
+
+/* comment the #define statement if OV5645 is not connected to CN1  */
+#define CAM_INTERFACE_OV5645	1
+
 #include "r9a07g044l2.dtsi"
 #include "rzg2l-smarc-som.dtsi"
 #include "rzg2l-smarc-pinfunction.dtsi"
diff --git a/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi b/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi
index 3962d47b3e59..915ad7e3935d 100644
--- a/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi
@@ -38,6 +38,38 @@ audio_mclock: audio_mclock {
 		clock-frequency = <11289600>;
 	};
 
+#ifdef CAM_INTERFACE_OV5645
+	ov5645_vdddo_1v8: 1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "camera_vdddo";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+	};
+
+	ov5645_vdda_2v8: 2p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "camera_vdda";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		regulator-always-on;
+	};
+
+	ov5645_vddd_1v5: 1p5v {
+		compatible = "regulator-fixed";
+		regulator-name = "camera_vddd";
+		regulator-min-microvolt = <1500000>;
+		regulator-max-microvolt = <1500000>;
+		regulator-always-on;
+	};
+
+	ov5645_fixed_clk: osc25250_clk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+	};
+#endif
+
 	snd_rzg2l: sound {
 		compatible = "simple-audio-card";
 		simple-audio-card,format = "i2s";
@@ -119,6 +151,27 @@ &i2c0 {
 	pinctrl-names = "default";
 
 	status = "okay";
+
+#ifdef CAM_INTERFACE_OV5645
+	ov5645: camera@3c {
+		compatible = "ovti,ov5645";
+		reg = <0x3c>;
+		clocks = <&ov5645_fixed_clk>;
+		clock-frequency = <24000000>;
+		vdddo-supply = <&ov5645_vdddo_1v8>;
+		vdda-supply = <&ov5645_vdda_2v8>;
+		vddd-supply = <&ov5645_vddd_1v5>;
+		enable-gpios = <&pinctrl RZG2L_GPIO(2, 0) GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&pinctrl RZG2L_GPIO(40, 2) GPIO_ACTIVE_LOW>;
+
+		port {
+			ov5645_ep: endpoint {
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+			};
+		};
+	};
+#endif
 };
 
 &i2c1 {
-- 
2.25.1

[PATCH 3/3] arm64: dts: renesas: rzg2l-smarc: Enable CRU and CSI nodes

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Enable CRU and CSI nodes and tie the CSI remote endpoint with
OV5645 endpoint.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../boot/dts/renesas/r9a07g044l2-smarc.dts    |  1 +
 .../boot/dts/renesas/rz-smarc-common.dtsi     | 23 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
index 275e760324f3..25da4c93e0a4 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
+++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
@@ -9,6 +9,7 @@
 
 /* comment the #define statement if OV5645 is not connected to CN1  */
 #define CAM_INTERFACE_OV5645	1
+#define CRU_INTERFACE_AVAILABLE	1
 
 #include "r9a07g044l2.dtsi"
 #include "rzg2l-smarc-som.dtsi"
diff --git a/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi b/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi
index 915ad7e3935d..0f9a96ef5f6a 100644
--- a/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/rz-smarc-common.dtsi
@@ -132,6 +132,28 @@ channel1 {
 	};
 };
 
+#ifdef CRU_INTERFACE_AVAILABLE
+&cru {
+	status = "okay";
+};
+
+&csi2 {
+	status = "okay";
+
+	ports {
+		port@0 {
+			csi2_in: endpoint {
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+#ifdef CAM_INTERFACE_OV5645
+				remote-endpoint = <&ov5645_ep>;
+#endif
+			};
+		};
+	};
+};
+#endif
+
 &ehci0 {
 	dr_mode = "otg";
 	status = "okay";
@@ -168,6 +190,7 @@ port {
 			ov5645_ep: endpoint {
 				clock-lanes = <0>;
 				data-lanes = <1 2>;
+				remote-endpoint = <&csi2_in>;
 			};
 		};
 	};
-- 
2.25.1

Re: [PATCH 1/3] arm64: dts: renesas: r9a07g044: Add CSI and CRU nodes

[Geert Uytterhoeven]

On Thu, Feb 16, 2023 at 6:54 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Add CSI and CRU nodes r9a07g044 (RZ/G2L) SoC DTSI.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 2/3] arm64: dts: renesas: rzg2l-smarc: Add OV5645 node

[Geert Uytterhoeven]

Hi Prabhakar,

On Thu, Feb 16, 2023 at 6:57 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> OV5645 sensor can be connected to the CN1 connector on the
> carrier board. This patch adds the ov5645 node under i2c0 node.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Thanks for your patch!

> --- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> +++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> @@ -6,6 +6,10 @@
>   */
>
>  /dts-v1/;
> +
> +/* comment the #define statement if OV5645 is not connected to CN1  */
> +#define CAM_INTERFACE_OV5645   1

I believe the camera is optional ("can be connector" above).
So shouldn't this be commented out by default?

The rest LGTM, so with the above sorted out:
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 3/3] arm64: dts: renesas: rzg2l-smarc: Enable CRU and CSI nodes

[Geert Uytterhoeven]

On Thu, Feb 16, 2023 at 6:54 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Enable CRU and CSI nodes and tie the CSI remote endpoint with
> OV5645 endpoint.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 2/3] arm64: dts: renesas: rzg2l-smarc: Add OV5645 node

[Lad, Prabhakar]

Hi Geert.

Thank you for the review.

On Mon, Mar 6, 2023 at 7:27 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Thu, Feb 16, 2023 at 6:57 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > OV5645 sensor can be connected to the CN1 connector on the
> > carrier board. This patch adds the ov5645 node under i2c0 node.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Thanks for your patch!
>
> > --- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > +++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > @@ -6,6 +6,10 @@
> >   */
> >
> >  /dts-v1/;
> > +
> > +/* comment the #define statement if OV5645 is not connected to CN1  */
> > +#define CAM_INTERFACE_OV5645   1
>
> I believe the camera is optional ("can be connector" above).
> So shouldn't this be commented out by default?
>
Yep, that makes sense.

Shall I send this change or will you be generous to do this while applying ;)

Cheers,
Prabhakar


> The rest LGTM, so with the above sorted out:
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds

Re: [PATCH 2/3] arm64: dts: renesas: rzg2l-smarc: Add OV5645 node

[Geert Uytterhoeven]

Hi Prabhakar,

On Wed, Mar 8, 2023 at 12:08 PM Lad, Prabhakar
<prabhakar.csengg@gmail.com> wrote:
> On Mon, Mar 6, 2023 at 7:27 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Thu, Feb 16, 2023 at 6:57 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > >
> > > OV5645 sensor can be connected to the CN1 connector on the
> > > carrier board. This patch adds the ov5645 node under i2c0 node.
> > >
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Thanks for your patch!
> >
> > > --- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > > +++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > > @@ -6,6 +6,10 @@
> > >   */
> > >
> > >  /dts-v1/;
> > > +
> > > +/* comment the #define statement if OV5645 is not connected to CN1  */
> > > +#define CAM_INTERFACE_OV5645   1
> >
> > I believe the camera is optional ("can be connector" above).
> > So shouldn't this be commented out by default?
> >
> Yep, that makes sense.
>
> Shall I send this change or will you be generous to do this while applying ;)

As this has an unresolved dependency on "[PATCH v2 0/2] Share RZ/G2L
SoC DTSI with RZ/V2L SoC", I cannot do that yet...

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH 2/3] arm64: dts: renesas: rzg2l-smarc: Add OV5645 node

[Laurent Pinchart]

On Mon, Mar 06, 2023 at 08:27:19PM +0100, Geert Uytterhoeven wrote:
> Hi Prabhakar,
> 
> On Thu, Feb 16, 2023 at 6:57 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > OV5645 sensor can be connected to the CN1 connector on the
> > carrier board. This patch adds the ov5645 node under i2c0 node.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> Thanks for your patch!
> 
> > --- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > +++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > @@ -6,6 +6,10 @@
> >   */
> >
> >  /dts-v1/;
> > +
> > +/* comment the #define statement if OV5645 is not connected to CN1  */
> > +#define CAM_INTERFACE_OV5645   1
> 
> I believe the camera is optional ("can be connector" above).
> So shouldn't this be commented out by default?

Even better, could you turn this into a DT overlay ?

> The rest LGTM, so with the above sorted out:
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

-- 
Regards,

Laurent Pinchart

Re: [PATCH 2/3] arm64: dts: renesas: rzg2l-smarc: Add OV5645 node

[Lad, Prabhakar]

Hi Geert,

On Wed, Mar 8, 2023 at 10:59 PM Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> On Mon, Mar 06, 2023 at 08:27:19PM +0100, Geert Uytterhoeven wrote:
> > Hi Prabhakar,
> >
> > On Thu, Feb 16, 2023 at 6:57 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > >
> > > OV5645 sensor can be connected to the CN1 connector on the
> > > carrier board. This patch adds the ov5645 node under i2c0 node.
> > >
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Thanks for your patch!
> >
> > > --- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > > +++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > > @@ -6,6 +6,10 @@
> > >   */
> > >
> > >  /dts-v1/;
> > > +
> > > +/* comment the #define statement if OV5645 is not connected to CN1  */
> > > +#define CAM_INTERFACE_OV5645   1
> >
> > I believe the camera is optional ("can be connector" above).
> > So shouldn't this be commented out by default?
>
> Even better, could you turn this into a DT overlay ?
>
Please let me know your thoughts on this.

> > The rest LGTM, so with the above sorted out:
> > Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
>
Cheers,
Prabhakar

Re: [PATCH 2/3] arm64: dts: renesas: rzg2l-smarc: Add OV5645 node

[Geert Uytterhoeven]

Hi Prabhakar,

On Mon, Mar 13, 2023 at 9:54 PM Lad, Prabhakar
<prabhakar.csengg@gmail.com> wrote:
> On Wed, Mar 8, 2023 at 10:59 PM Laurent Pinchart
> <laurent.pinchart@ideasonboard.com> wrote:
> > On Mon, Mar 06, 2023 at 08:27:19PM +0100, Geert Uytterhoeven wrote:
> > > On Thu, Feb 16, 2023 at 6:57 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > >
> > > > OV5645 sensor can be connected to the CN1 connector on the
> > > > carrier board. This patch adds the ov5645 node under i2c0 node.
> > > >
> > > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > >
> > > Thanks for your patch!
> > >
> > > > --- a/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > > > +++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-smarc.dts
> > > > @@ -6,6 +6,10 @@
> > > >   */
> > > >
> > > >  /dts-v1/;
> > > > +
> > > > +/* comment the #define statement if OV5645 is not connected to CN1  */
> > > > +#define CAM_INTERFACE_OV5645   1
> > >
> > > I believe the camera is optional ("can be connector" above).
> > > So shouldn't this be commented out by default?
> >
> > Even better, could you turn this into a DT overlay ?
> >
> Please let me know your thoughts on this.

I agree with Laurent.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds