[PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Geert Uytterhoeven]

	Hi Simon, Magnus,

This patch series adds support for the power areas exposed by the System
Controller on the Renesas R-Car M3-W SoC to the DTS.

This series is against Simon's "[PATCH v3 0/3] arm64: Add Renesas
R8A7796 SoC support".  It has a build and runtime dependency on my series
"[PATCH v2 0/3] soc: renesas: rcar-sysc: Add support for R-Car M3-W power
areas".

For your convenience, I've pushed this series to the
topic/r8a7796-sysc-dt-v1 branch of
https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git.
This has been tested on r8a7796/salvator-x.

Thanks!

Geert Uytterhoeven (2):
  arm64: dts: r8a7796: Add SYSC PM Domains
  arm64: dts: r8a7796: Use SYSC "always-on" PM Domain

 arch/arm64/boot/dts/renesas/r8a7796.dtsi | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

-- 
1.9.1

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

[PATCH 1/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Geert Uytterhoeven]

Add a device node for the System Controller.
Hook up the Cortex-A57 CPU core and L2 cache/SCU to their respective PM
Domains.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/r8a7796.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 178debf68318fde4..85f0843ddd874378 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -10,6 +10,7 @@
 
 #include <dt-bindings/clock/r8a7796-cpg-mssr.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/power/r8a7796-sysc.h>
 
 / {
 	compatible = "renesas,r8a7796";
@@ -30,6 +31,7 @@
 			compatible = "arm,cortex-a57", "arm,armv8";
 			reg = <0x0>;
 			device_type = "cpu";
+			power-domains = <&sysc R8A7796_PD_CA57_CPU0>;
 			next-level-cache = <&L2_CA57>;
 			enable-method = "psci";
 		};
@@ -37,6 +39,7 @@
 		L2_CA57: cache-controller@0 {
 			compatible = "cache";
 			reg = <0>;
+			power-domains = <&sysc R8A7796_PD_CA57_SCU>;
 			cache-unified;
 			cache-level = <2>;
 		};
@@ -104,6 +107,12 @@
 			#power-domain-cells = <0>;
 		};
 
+		sysc: system-controller@e6180000 {
+			compatible = "renesas,r8a7796-sysc";
+			reg = <0 0xe6180000 0 0x0400>;
+			#power-domain-cells = <1>;
+		};
+
 		scif2: serial@e6e88000 {
 			compatible = "renesas,scif-r8a7796",
 				     "renesas,rcar-gen3-scif", "renesas,scif";
-- 
1.9.1

[PATCH 2/2] arm64: dts: r8a7796: Use SYSC "always-on" PM Domain

[Geert Uytterhoeven]

Hook up all devices that are part of the CPG/MSSR Clock Domain to the
SYSC "always-on" PM Domain, for a more consistent device-power-area
description in DT.

Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
 arch/arm64/boot/dts/renesas/r8a7796.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 85f0843ddd874378..fab61eddede3818c 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -122,7 +122,7 @@
 				 <&cpg CPG_CORE R8A7796_CLK_S3D1>,
 				 <&scif_clk>;
 			clock-names = "fck", "brg_int", "scif_clk";
-			power-domains = <&cpg>;
+			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
 			status = "disabled";
 		};
 	};
-- 
1.9.1

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[PATCH 2/2] arm64: dts: r8a7796: Use SYSC "always-on" PM Domain

[Geert Uytterhoeven]

Hook up all devices that are part of the CPG/MSSR Clock Domain to the
SYSC "always-on" PM Domain, for a more consistent device-power-area
description in DT.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/r8a7796.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 85f0843ddd874378..fab61eddede3818c 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -122,7 +122,7 @@
 				 <&cpg CPG_CORE R8A7796_CLK_S3D1>,
 				 <&scif_clk>;
 			clock-names = "fck", "brg_int", "scif_clk";
-			power-domains = <&cpg>;
+			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
 			status = "disabled";
 		};
 	};
-- 
1.9.1

Re: [PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Simon Horman]

On Tue, May 31, 2016 at 11:08:43AM +0200, Geert Uytterhoeven wrote:
> 	Hi Simon, Magnus,
> 
> This patch series adds support for the power areas exposed by the System
> Controller on the Renesas R-Car M3-W SoC to the DTS.
> 
> This series is against Simon's "[PATCH v3 0/3] arm64: Add Renesas
> R8A7796 SoC support".  It has a build and runtime dependency on my series
> "[PATCH v2 0/3] soc: renesas: rcar-sysc: Add support for R-Car M3-W power
> areas".
> 
> For your convenience, I've pushed this series to the
> topic/r8a7796-sysc-dt-v1 branch of
> https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git.
> This has been tested on r8a7796/salvator-x.

Thanks, I have tentatively queued this up.

[PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Simon Horman]

On Tue, May 31, 2016 at 11:08:43AM +0200, Geert Uytterhoeven wrote:
> 	Hi Simon, Magnus,
> 
> This patch series adds support for the power areas exposed by the System
> Controller on the Renesas R-Car M3-W SoC to the DTS.
> 
> This series is against Simon's "[PATCH v3 0/3] arm64: Add Renesas
> R8A7796 SoC support".  It has a build and runtime dependency on my series
> "[PATCH v2 0/3] soc: renesas: rcar-sysc: Add support for R-Car M3-W power
> areas".
> 
> For your convenience, I've pushed this series to the
> topic/r8a7796-sysc-dt-v1 branch of
> https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git.
> This has been tested on r8a7796/salvator-x.

Thanks, I have tentatively queued this up.

Re: [PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Simon Horman]

On Mon, Jun 06, 2016 at 10:33:59AM +0900, Simon Horman wrote:
> On Tue, May 31, 2016 at 11:08:43AM +0200, Geert Uytterhoeven wrote:
> > 	Hi Simon, Magnus,
> > 
> > This patch series adds support for the power areas exposed by the System
> > Controller on the Renesas R-Car M3-W SoC to the DTS.
> > 
> > This series is against Simon's "[PATCH v3 0/3] arm64: Add Renesas
> > R8A7796 SoC support".  It has a build and runtime dependency on my series
> > "[PATCH v2 0/3] soc: renesas: rcar-sysc: Add support for R-Car M3-W power
> > areas".
> > 
> > For your convenience, I've pushed this series to the
> > topic/r8a7796-sysc-dt-v1 branch of
> > https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git.
> > This has been tested on r8a7796/salvator-x.
> 
> Thanks, I have tentatively queued this up.

Bother, I spoke to soon.

There is a compile-time dependency on 8a7796-cpg-mssr.h in the basic
support for r8a7796 which this series depends on.  So "[PATCH 0/4] clk:
renesas: cpg-mssr: Add support for R-Car M3-W" needs to be present. I have
deferred these patches pending that. 

[PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Simon Horman]

On Mon, Jun 06, 2016 at 10:33:59AM +0900, Simon Horman wrote:
> On Tue, May 31, 2016 at 11:08:43AM +0200, Geert Uytterhoeven wrote:
> > 	Hi Simon, Magnus,
> > 
> > This patch series adds support for the power areas exposed by the System
> > Controller on the Renesas R-Car M3-W SoC to the DTS.
> > 
> > This series is against Simon's "[PATCH v3 0/3] arm64: Add Renesas
> > R8A7796 SoC support".  It has a build and runtime dependency on my series
> > "[PATCH v2 0/3] soc: renesas: rcar-sysc: Add support for R-Car M3-W power
> > areas".
> > 
> > For your convenience, I've pushed this series to the
> > topic/r8a7796-sysc-dt-v1 branch of
> > https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git.
> > This has been tested on r8a7796/salvator-x.
> 
> Thanks, I have tentatively queued this up.

Bother, I spoke to soon.

There is a compile-time dependency on 8a7796-cpg-mssr.h in the basic
support for r8a7796 which this series depends on.  So "[PATCH 0/4] clk:
renesas: cpg-mssr: Add support for R-Car M3-W" needs to be present. I have
deferred these patches pending that. 

Re: [PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Simon Horman]

On Mon, Jun 06, 2016 at 10:53:02AM +0900, Simon Horman wrote:
> On Mon, Jun 06, 2016 at 10:33:59AM +0900, Simon Horman wrote:
> > On Tue, May 31, 2016 at 11:08:43AM +0200, Geert Uytterhoeven wrote:
> > > 	Hi Simon, Magnus,
> > > 
> > > This patch series adds support for the power areas exposed by the System
> > > Controller on the Renesas R-Car M3-W SoC to the DTS.
> > > 
> > > This series is against Simon's "[PATCH v3 0/3] arm64: Add Renesas
> > > R8A7796 SoC support".  It has a build and runtime dependency on my series
> > > "[PATCH v2 0/3] soc: renesas: rcar-sysc: Add support for R-Car M3-W power
> > > areas".
> > > 
> > > For your convenience, I've pushed this series to the
> > > topic/r8a7796-sysc-dt-v1 branch of
> > > https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git.
> > > This has been tested on r8a7796/salvator-x.
> > 
> > Thanks, I have tentatively queued this up.
> 
> Bother, I spoke to soon.
> 
> There is a compile-time dependency on 8a7796-cpg-mssr.h in the basic
> support for r8a7796 which this series depends on.  So "[PATCH 0/4] clk:
> renesas: cpg-mssr: Add support for R-Car M3-W" needs to be present. I have
> deferred these patches pending that. 
> 

I have requeued this.

[PATCH 0/2] arm64: dts: r8a7796: Add SYSC PM Domains

[Simon Horman]

On Mon, Jun 06, 2016 at 10:53:02AM +0900, Simon Horman wrote:
> On Mon, Jun 06, 2016 at 10:33:59AM +0900, Simon Horman wrote:
> > On Tue, May 31, 2016 at 11:08:43AM +0200, Geert Uytterhoeven wrote:
> > > 	Hi Simon, Magnus,
> > > 
> > > This patch series adds support for the power areas exposed by the System
> > > Controller on the Renesas R-Car M3-W SoC to the DTS.
> > > 
> > > This series is against Simon's "[PATCH v3 0/3] arm64: Add Renesas
> > > R8A7796 SoC support".  It has a build and runtime dependency on my series
> > > "[PATCH v2 0/3] soc: renesas: rcar-sysc: Add support for R-Car M3-W power
> > > areas".
> > > 
> > > For your convenience, I've pushed this series to the
> > > topic/r8a7796-sysc-dt-v1 branch of
> > > https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git.
> > > This has been tested on r8a7796/salvator-x.
> > 
> > Thanks, I have tentatively queued this up.
> 
> Bother, I spoke to soon.
> 
> There is a compile-time dependency on 8a7796-cpg-mssr.h in the basic
> support for r8a7796 which this series depends on.  So "[PATCH 0/4] clk:
> renesas: cpg-mssr: Add support for R-Car M3-W" needs to be present. I have
> deferred these patches pending that. 
> 

I have requeued this.