[PATCH 0/6] Add PWM and TPU support to r8a7743

[PATCH 0/6] Add PWM and TPU support to r8a7743

[Fabrizio Castro]

Dear All,

this series includes all that is required to add PWM and TPU SoC specific
support for the r8a7743.

Thanks,

Fabrizio Castro (6):
  ARM: shmobile: defconfig: Enable PWM
  dt-bindings: pwm: rcar: Document r8a774[35] PWM bindings
  ARM: dts: r8a7743: Add PWM SoC support
  dt-bindings: pwm: renesas-tpu: Document r8a774[35] support
  pinctrl: sh-pfc: r8a7791: Add tpu groups and function
  ARM: dts: r8a7743: Add TPU support

 .../devicetree/bindings/pwm/renesas,pwm-rcar.txt   | 10 ++-
 .../devicetree/bindings/pwm/renesas,tpu-pwm.txt    |  4 +-
 arch/arm/boot/dts/r8a7743.dtsi                     | 87 ++++++++++++++++++++++
 arch/arm/configs/shmobile_defconfig                |  1 +
 drivers/pinctrl/sh-pfc/pfc-r8a7791.c               | 42 ++++++++++-
 5 files changed, 138 insertions(+), 6 deletions(-)

-- 
2.7.4

[PATCH 1/6] ARM: shmobile: defconfig: Enable PWM

[Fabrizio Castro]

RZ/G1 and R-Car platforms have PWM timers. This patch enables PWM support
by default.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
---
 arch/arm/configs/shmobile_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index d60dbe1..578434c 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -208,6 +208,7 @@ CONFIG_STAGING_BOARD=y
 CONFIG_IIO=y
 CONFIG_AK8975=y
 CONFIG_PWM=y
+CONFIG_PWM_RCAR=y
 CONFIG_PWM_RENESAS_TPU=y
 CONFIG_GENERIC_PHY=y
 CONFIG_PHY_RCAR_GEN2=y
-- 
2.7.4

[PATCH 1/6] ARM: shmobile: defconfig: Enable PWM

[Geert Uytterhoeven]

Hi Fabrizio,

On Thu, Dec 14, 2017 at 11:56 AM, Fabrizio Castro
<fabrizio.castro@bp.renesas.com> wrote:
> RZ/G1 and R-Car platforms have PWM timers. This patch enables PWM support
> by default.
>
> Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
> Reviewed-by: Biju Das <biju.das@bp.renesas.com>

Thanks for your patch!

If I'm not mistaken, there are no current users of this PWM block in the
current R-Car Gen2 and RZ/G1 DTS files?
If that's correct, I don't think it makes much sense to enable it already.

Simon: what do you think?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at 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

[PATCH 1/6] ARM: shmobile: defconfig: Enable PWM

[Fabrizio Castro]

Hi Geert,

> Subject: Re: [PATCH 1/6] ARM: shmobile: defconfig: Enable PWM
>
> Hi Fabrizio,
>
> On Thu, Dec 14, 2017 at 11:56 AM, Fabrizio Castro
> <fabrizio.castro@bp.renesas.com> wrote:
> > RZ/G1 and R-Car platforms have PWM timers. This patch enables PWM support
> > by default.
> >
> > Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
> > Reviewed-by: Biju Das <biju.das@bp.renesas.com>
>
> Thanks for your patch!

Thank you for your feedback.

>
> If I'm not mistaken, there are no current users of this PWM block in the
> current R-Car Gen2 and RZ/G1 DTS files?

PWM support will be needed very soon as we are going to use pwm3 on the iwg20d platform to control the RGB display backlight.
The work to add display support is in progress, I hope it will be ready by next week, would you rather I sent this patch with the series to add display support?

Thanks,
Fab

> If that's correct, I don't think it makes much sense to enable it already.
>
> Simon: what do you think?
>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at 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


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[PATCH 1/6] ARM: shmobile: defconfig: Enable PWM

[Geert Uytterhoeven]

Hi Fabrizio,

On Fri, Dec 15, 2017 at 10:48 AM, Fabrizio Castro
<fabrizio.castro@bp.renesas.com> wrote:
>> Subject: Re: [PATCH 1/6] ARM: shmobile: defconfig: Enable PWM
>> On Thu, Dec 14, 2017 at 11:56 AM, Fabrizio Castro
>> <fabrizio.castro@bp.renesas.com> wrote:
>> > RZ/G1 and R-Car platforms have PWM timers. This patch enables PWM support
>> > by default.
>> >
>> > Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
>> > Reviewed-by: Biju Das <biju.das@bp.renesas.com>
>>
>> Thanks for your patch!
>
> Thank you for your feedback.
>
>>
>> If I'm not mistaken, there are no current users of this PWM block in the
>> current R-Car Gen2 and RZ/G1 DTS files?
>
> PWM support will be needed very soon as we are going to use pwm3 on the iwg20d platform to control the RGB display backlight.

Good to know, thanks!

> The work to add display support is in progress, I hope it will be ready by next week, would you rather I sent this patch with the series to add display support?

That's up to Simon.  But I guess it doesn't matter much, as defconfig updates
are queued in a separate branch anyway.

You may want to send a similar patch for multi_v7_defconfig.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at 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

[PATCH 3/6] ARM: dts: r8a7743: Add PWM SoC support

[Fabrizio Castro]

Add the definitions for pwm[0123456] to the SoC .dtsi.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7743.dtsi | 77 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7743.dtsi b/arch/arm/boot/dts/r8a7743.dtsi
index e056bc5..6766c76 100644
--- a/arch/arm/boot/dts/r8a7743.dtsi
+++ b/arch/arm/boot/dts/r8a7743.dtsi
@@ -1080,6 +1080,83 @@
 			status = "disabled";
 		};
 
+		pwm0: pwm at e6e30000 {
+			compatible = "renesas,pwm-r8a7743",
+				     "renesas,pwm-rcar";
+			reg = <0 0xe6e30000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm1: pwm at e6e31000 {
+			compatible = "renesas,pwm-r8a7743",
+				     "renesas,pwm-rcar";
+			reg = <0 0xe6e31000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm2: pwm at e6e32000 {
+			compatible = "renesas,pwm-r8a7743",
+				     "renesas,pwm-rcar";
+			reg = <0 0xe6e32000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm3: pwm at e6e33000 {
+			compatible = "renesas,pwm-r8a7743",
+				     "renesas,pwm-rcar";
+			reg = <0 0xe6e33000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm4: pwm at e6e34000 {
+			compatible = "renesas,pwm-r8a7743",
+				     "renesas,pwm-rcar";
+			reg = <0 0xe6e34000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm5: pwm at e6e35000 {
+			compatible = "renesas,pwm-r8a7743",
+				     "renesas,pwm-rcar";
+			reg = <0 0xe6e35000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm6: pwm at e6e36000 {
+			compatible = "renesas,pwm-r8a7743",
+				     "renesas,pwm-rcar";
+			reg = <0 0xe6e36000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
 		sdhi0: sd at ee100000 {
 			compatible = "renesas,sdhi-r8a7743",
 				     "renesas,rcar-gen2-sdhi";
-- 
2.7.4

[PATCH 6/6] ARM: dts: r8a7743: Add TPU support

[Fabrizio Castro]

Add TPU support to SoC DT.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7743.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7743.dtsi b/arch/arm/boot/dts/r8a7743.dtsi
index 6766c76..861e76d 100644
--- a/arch/arm/boot/dts/r8a7743.dtsi
+++ b/arch/arm/boot/dts/r8a7743.dtsi
@@ -1157,6 +1157,16 @@
 			status = "disabled";
 		};
 
+		tpu: pwm at e60f0000 {
+			compatible = "renesas,tpu-r8a7743", "renesas,tpu";
+			reg = <0 0xe60f0000 0 0x148>;
+			clocks = <&cpg CPG_MOD 304>;
+			power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
+			resets = <&cpg 304>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
 		sdhi0: sd at ee100000 {
 			compatible = "renesas,sdhi-r8a7743",
 				     "renesas,rcar-gen2-sdhi";
-- 
2.7.4