[PATCH 01/10] arm64: renesas: salvator-x: set ak4613 In/Out pin as single-end

[PATCH 01/10] arm64: renesas: salvator-x: set ak4613 In/Out pin as single-end

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index c5f709e7c0ba..beeacfaf18d0 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -141,6 +141,15 @@
 		#sound-dai-cells = <0>;
 		reg = <0x10>;
 		clocks = <&rcar_sound 3>;
+
+		asahi-kasei,in1-single-end;
+		asahi-kasei,in2-single-end;
+		asahi-kasei,out1-single-end;
+		asahi-kasei,out2-single-end;
+		asahi-kasei,out3-single-end;
+		asahi-kasei,out4-single-end;
+		asahi-kasei,out5-single-end;
+		asahi-kasei,out6-single-end;
 	};
 };
 
-- 
2.1.4

[PATCH 02/10] arm64: renesas: salvator-x: use CS2000 as AUDIO_CLK_B

[Simon Horman]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

CS2000 needs AUDIO_CLKOUT as master clock which is generated
by Renesas sound, and Renesas sound needs CS2000 as ADUIO_CLK_B.
Because of this relationship, it will be dead-lock when driver probe.

cs2000: clk_multiplier at 4f {
        ...
        clocks = <&rcar_sound 0>, <&x12_clk>;
        ...
};

&rcar_sound {
        ...
        assigned-clocks = <&cs2000>;
        ...
};

This patch is using dummy audio_clkout to avoid this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 38 ++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index beeacfaf18d0..75af5ec5a4d4 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -61,6 +61,16 @@
 		clock-frequency = <24576000>;
 	};
 
+	audio_clkout: audio_clkout {
+		/*
+		 * This is same as <&rcar_sound 0>
+		 * but needed to avoid cs2000/rcar_sound probe dead-lock
+		 */
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <11289600>;
+	};
+
 	rsnd_ak4613: sound {
 		compatible = "simple-audio-card";
 
@@ -151,6 +161,17 @@
 		asahi-kasei,out5-single-end;
 		asahi-kasei,out6-single-end;
 	};
+
+	cs2000: clk_multiplier at 4f {
+		#clock-cells = <0>;
+		compatible = "cirrus,cs2000-cp";
+		reg = <0x4f>;
+		clocks = <&audio_clkout>, <&x12_clk>;
+		clock-names = "clk_in", "ref_clk";
+
+		assigned-clocks = <&cs2000>;
+		assigned-clock-rates = <24576000>; /* 1/1 divide */
+	};
 };
 
 &rcar_sound {
@@ -166,6 +187,23 @@
 
 	status = "okay";
 
+	/* update <audio_clk_b> to <cs2000> */
+	clocks = <&cpg CPG_MOD 1005>,
+		 <&cpg CPG_MOD 1006>, <&cpg CPG_MOD 1007>,
+		 <&cpg CPG_MOD 1008>, <&cpg CPG_MOD 1009>,
+		 <&cpg CPG_MOD 1010>, <&cpg CPG_MOD 1011>,
+		 <&cpg CPG_MOD 1012>, <&cpg CPG_MOD 1013>,
+		 <&cpg CPG_MOD 1014>, <&cpg CPG_MOD 1015>,
+		 <&cpg CPG_MOD 1022>, <&cpg CPG_MOD 1023>,
+		 <&cpg CPG_MOD 1024>, <&cpg CPG_MOD 1025>,
+		 <&cpg CPG_MOD 1026>, <&cpg CPG_MOD 1027>,
+		 <&cpg CPG_MOD 1028>, <&cpg CPG_MOD 1029>,
+		 <&cpg CPG_MOD 1030>, <&cpg CPG_MOD 1031>,
+		 <&cpg CPG_MOD 1019>, <&cpg CPG_MOD 1018>,
+		 <&audio_clk_a>, <&cs2000>,
+		 <&audio_clk_c>,
+		 <&cpg CPG_CORE R8A7795_CLK_S0D4>;
+
 	rcar_sound,dai {
 		dai0 {
 			playback = <&ssi0 &src0 &dvc0>;
-- 
2.1.4

[PATCH 03/10] arm64: dts: r8a7795: Add PSCI node

[Simon Horman]

From: Gaku Inami <gaku.inami.xw@bp.renesas.com>

Add PSCI node for r8a7795 SoC, and cpu node enable-method property is
set to "psci".

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index b1902ea1dae4..051ff143506e 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -26,6 +26,11 @@
 		i2c6 = &i2c6;
 	};
 
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -35,6 +40,7 @@
 			compatible = "arm,cortex-a57", "arm,armv8";
 			reg = <0x0>;
 			device_type = "cpu";
+			enable-method = "psci";
 		};
 	};
 
-- 
2.1.4

[PATCH 04/10] arm64: dts: r8a7795: Add Cortex-A57 CPU cores

[Simon Horman]

From: Gaku Inami <gaku.inami.xw@bp.renesas.com>

Add Cortex-A57 CPU cores to r8a7795 SoC for a total of 4 x Cortex-A57.

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Sigend-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 31 +++++++++++++++++++++++++------
 1 file changed, 25 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 051ff143506e..4d43cf31418f 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -35,13 +35,31 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		/* 1 core only at this point */
 		a57_0: cpu at 0 {
 			compatible = "arm,cortex-a57", "arm,armv8";
 			reg = <0x0>;
 			device_type = "cpu";
 			enable-method = "psci";
 		};
+
+		a57_1: cpu at 1 {
+			compatible = "arm,cortex-a57","arm,armv8";
+			reg = <0x1>;
+			device_type = "cpu";
+			enable-method = "psci";
+		};
+		a57_2: cpu at 2 {
+			compatible = "arm,cortex-a57","arm,armv8";
+			reg = <0x2>;
+			device_type = "cpu";
+			enable-method = "psci";
+		};
+		a57_3: cpu at 3 {
+			compatible = "arm,cortex-a57","arm,armv8";
+			reg = <0x3>;
+			device_type = "cpu";
+			enable-method = "psci";
+		};
 	};
 
 	extal_clk: extal {
@@ -84,6 +102,7 @@
 	soc {
 		compatible = "simple-bus";
 		interrupt-parent = <&gic>;
+
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
@@ -96,7 +115,7 @@
 			reg = <0x0 0xf1010000 0 0x1000>,
 			      <0x0 0xf1020000 0 0x2000>;
 			interrupts = <GIC_PPI 9
-					(GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_HIGH)>;
+					(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 		};
 
 		gpio0: gpio at e6050000 {
@@ -214,13 +233,13 @@
 		timer {
 			compatible = "arm,armv8-timer";
 			interrupts = <GIC_PPI 13
-					(GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+					(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 				     <GIC_PPI 14
-					(GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+					(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 				     <GIC_PPI 11
-					(GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+					(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
 				     <GIC_PPI 10
-					(GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
+					(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
 		};
 
 		cpg: clock-controller at e6150000 {
-- 
2.1.4

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Simon Horman]

From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>

Enabling the performance monitor unit on r8a7795.

Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 4d43cf31418f..b9229a49dabc 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -230,6 +230,18 @@
 			power-domains = <&cpg>;
 		};
 
+		pmu {
+			compatible = "arm,armv8-pmuv3";
+			interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-affinity = <&a57_0>,
+					     <&a57_1>,
+					     <&a57_2>,
+					     <&a57_3>;
+		};
+
 		timer {
 			compatible = "arm,armv8-timer";
 			interrupts = <GIC_PPI 13
-- 
2.1.4

[GIT PULL] Third Round of Renesas ARM64 Based SoC DT Updates for v4.5

[Simon Horman]

Hi Olof, Hi Kevin, Hi Arnd,

Please consider these third round of Renesas ARM64 based SoC DT updates
for v4.5.

This pull request is based on the previous round of
such requests, tagged as renesas-arm64-dt2-for-v4.5,
which you have already pulled.


The following changes since commit 672b79312c04016481a11d4b996b4512207ffbd3:

  arm64: renesas: salvator-x: Sound DVC support (2015-11-26 11:31:43 +0900)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-arm64-dt3-for-v4.5

for you to fetch changes up to 2eb2b5066197eab00c55dcd1132f17836e4975b2:

  arm64: renesas: r8a7795: fix SATA clock assignment (2015-12-18 10:07:29 +0900)

----------------------------------------------------------------
Third Round of Renesas ARM64 Based SoC DT Updates for v4.5

* Enable SATA
* Add salvator-x part number to DT bindings documentation
* Enable all four A57 cores instead of just one
* Enhanced audio support:
  - Use CS2000 as AUDIO_CLK_B
  - Set ak4613 In/Out pin as single-end

----------------------------------------------------------------
Gaku Inami (2):
      arm64: dts: r8a7795: Add PSCI node
      arm64: dts: r8a7795: Add Cortex-A57 CPU cores

Geert Uytterhoeven (1):
      arm64: renesas: salvator-x: Add board part number to DT bindings

Kouei Abe (2):
      arm64: dts: r8a7795: Add SATA controller node
      arm64: dts: salvator-x: Enable SATA controller

Kuninori Morimoto (2):
      arm64: renesas: salvator-x: set ak4613 In/Out pin as single-end
      arm64: renesas: salvator-x: use CS2000 as AUDIO_CLK_B

Ulrich Hecht (1):
      arm64: renesas: r8a7795: fix SATA clock assignment

Wolfram Sang (1):
      arm64: renesas: r8a7795: add internal delay for i2c IPs

Yoshifumi Hosoya (1):
      arm64: dts: r8a7795: Add pmu device nodes

 Documentation/devicetree/bindings/arm/shmobile.txt |  2 +-
 arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 51 +++++++++++++++++
 arch/arm64/boot/dts/renesas/r8a7795.dtsi           | 64 ++++++++++++++++++++--
 3 files changed, 110 insertions(+), 7 deletions(-)

[PATCH 06/10] arm64: renesas: salvator-x: Add board part number to DT bindings

[Simon Horman]

From: Geert Uytterhoeven <geert+renesas@glider.be>

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 Documentation/devicetree/bindings/arm/shmobile.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt
index 678a8184da24..9cf67e48f222 100644
--- a/Documentation/devicetree/bindings/arm/shmobile.txt
+++ b/Documentation/devicetree/bindings/arm/shmobile.txt
@@ -59,7 +59,7 @@ Boards:
     compatible = "renesas,marzen", "renesas,r8a7779"
   - Porter (M2-LCDP)
     compatible = "renesas,porter", "renesas,r8a7791"
-  - Salvator-X
+  - Salvator-X (RTP0RC7795SIPB0010S)
     compatible = "renesas,salvator-x", "renesas,r8a7795";
   - SILK (RTP0RC7794LCB00011S)
     compatible = "renesas,silk", "renesas,r8a7794"
-- 
2.1.4

[PATCH 07/10] arm64: renesas: r8a7795: add internal delay for i2c IPs

[Simon Horman]

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index b9229a49dabc..e14251164480 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -526,6 +526,7 @@
 			interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 931>;
 			power-domains = <&cpg>;
+			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
 
@@ -537,6 +538,7 @@
 			interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 930>;
 			power-domains = <&cpg>;
+			i2c-scl-internal-delay-ns = <6>;
 			status = "disabled";
 		};
 
@@ -548,6 +550,7 @@
 			interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 929>;
 			power-domains = <&cpg>;
+			i2c-scl-internal-delay-ns = <6>;
 			status = "disabled";
 		};
 
@@ -559,6 +562,7 @@
 			interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 928>;
 			power-domains = <&cpg>;
+			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
 
@@ -570,6 +574,7 @@
 			interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 927>;
 			power-domains = <&cpg>;
+			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
 
@@ -581,6 +586,7 @@
 			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 919>;
 			power-domains = <&cpg>;
+			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
 
@@ -592,6 +598,7 @@
 			interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 918>;
 			power-domains = <&cpg>;
+			i2c-scl-internal-delay-ns = <6>;
 			status = "disabled";
 		};
 
-- 
2.1.4

[PATCH 08/10] arm64: dts: r8a7795: Add SATA controller node

[Simon Horman]

From: Kouei Abe <kouei.abe.cp@renesas.com>

This adds SATA device node to r8a7795.dtsi.

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
[uli: adjusted for new MSTP clock scheme]
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index e14251164480..9ce6a5ea6629 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -767,5 +767,13 @@
 				};
 			};
 		};
+
+		sata: sata at ee300000 {
+			compatible = "renesas,sata-r8a7795";
+			reg = <0 0xee300000 0 0x1fff>;
+			interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 915>;
+			status = "disabled";
+		};
 	};
 };
-- 
2.1.4

[PATCH 09/10] arm64: dts: salvator-x: Enable SATA controller

[Simon Horman]

From: Kouei Abe <kouei.abe.cp@renesas.com>

This enables SATA device in r8a7795-salvator-x.dts.

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
index 75af5ec5a4d4..265d12ff6022 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts
@@ -212,6 +212,10 @@
 	};
 };
 
+&sata {
+	status = "okay";
+};
+
 &ssi1 {
 	shared-pin;
 };
-- 
2.1.4

[PATCH 10/10] arm64: renesas: r8a7795: fix SATA clock assignment

[Simon Horman]

From: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>

SATA clock is 815, not 915.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index 9ce6a5ea6629..bb353cde1253 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -772,7 +772,7 @@
 			compatible = "renesas,sata-r8a7795";
 			reg = <0 0xee300000 0 0x1fff>;
 			interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&cpg CPG_MOD 915>;
+			clocks = <&cpg CPG_MOD 815>;
 			status = "disabled";
 		};
 	};
-- 
2.1.4

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Sudeep Holla]

On 18/12/15 02:29, Simon Horman wrote:
> From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>
> Enabling the performance monitor unit on r8a7795.
>
> Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
> Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
> ---
>   arch/arm64/boot/dts/renesas/r8a7795.dtsi | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> index 4d43cf31418f..b9229a49dabc 100644
> --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> @@ -230,6 +230,18 @@
>   			power-domains = <&cpg>;
>   		};
>
> +		pmu {
> +			compatible = "arm,armv8-pmuv3";

Please use arm,cortex-a57-pmu to be more specific. IIRC I mentioned this
for some shmobile platform recently.

-- 
Regards,
Sudeep

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Dirk Behme]

On 18.12.2015 11:16, Sudeep Holla wrote:
>
>
> On 18/12/15 02:29, Simon Horman wrote:
>> From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>>
>> Enabling the performance monitor unit on r8a7795.
>>
>> Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
>> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>> Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
>> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
>> ---
>>   arch/arm64/boot/dts/renesas/r8a7795.dtsi | 12 ++++++++++++
>>   1 file changed, 12 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>> b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>> index 4d43cf31418f..b9229a49dabc 100644
>> --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>> +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>> @@ -230,6 +230,18 @@
>>               power-domains = <&cpg>;
>>           };
>>
>> +        pmu {
>> +            compatible = "arm,armv8-pmuv3";
>
> Please use arm,cortex-a57-pmu to be more specific. IIRC I mentioned this
> for some shmobile platform recently.


Yes. But as this patch has been applied already to some branches, I 
incorporated your a57-pmu hint with an additional update patch:

http://marc.info/?l=linux-sh&m=145011467914857

Feel free to squash if still possible.

Best regards

Dirk

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Sudeep Holla]

On 18/12/15 10:44, Dirk Behme wrote:
> On 18.12.2015 11:16, Sudeep Holla wrote:
>>
>>
>> On 18/12/15 02:29, Simon Horman wrote:
>>> From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>>>
>>> Enabling the performance monitor unit on r8a7795.
>>>
>>> Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
>>> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>>> Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
>>> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
>>> ---
>>>   arch/arm64/boot/dts/renesas/r8a7795.dtsi | 12 ++++++++++++
>>>   1 file changed, 12 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>> b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>> index 4d43cf31418f..b9229a49dabc 100644
>>> --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>> +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>> @@ -230,6 +230,18 @@
>>>               power-domains = <&cpg>;
>>>           };
>>>
>>> +        pmu {
>>> +            compatible = "arm,armv8-pmuv3";
>>
>> Please use arm,cortex-a57-pmu to be more specific. IIRC I mentioned this
>> for some shmobile platform recently.
>
>
> Yes. But as this patch has been applied already to some branches, I
> incorporated your a57-pmu hint with an additional update patch:
>
> http://marc.info/?l=linux-sh&m=145011467914857
>
> Feel free to squash if still possible.
>

Ah OK, I didn't know the exact dts name, sorry for the noise.
Better if it was posted as part of this series :)

-- 
Regards,
Sudeep

[GIT PULL] Third Round of Renesas ARM64 Based SoC DT Updates for v4.5

[Olof Johansson]

On Fri, Dec 18, 2015 at 11:29:14AM +0900, Simon Horman wrote:
> Hi Olof, Hi Kevin, Hi Arnd,
> 
> Please consider these third round of Renesas ARM64 based SoC DT updates
> for v4.5.
> 
> This pull request is based on the previous round of
> such requests, tagged as renesas-arm64-dt2-for-v4.5,
> which you have already pulled.
> 
> 
> The following changes since commit 672b79312c04016481a11d4b996b4512207ffbd3:
> 
>   arm64: renesas: salvator-x: Sound DVC support (2015-11-26 11:31:43 +0900)
> 
> are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-arm64-dt3-for-v4.5

Merged, but:

>       arm64: dts: r8a7795: Add PSCI node
>       arm64: dts: r8a7795: Add Cortex-A57 CPU cores
>       arm64: renesas: salvator-x: Add board part number to DT bindings
>       arm64: dts: r8a7795: Add SATA controller node
>       arm64: dts: salvator-x: Enable SATA controller
>       arm64: renesas: salvator-x: set ak4613 In/Out pin as single-end
>       arm64: renesas: salvator-x: use CS2000 as AUDIO_CLK_B
>       arm64: renesas: r8a7795: fix SATA clock assignment
>       arm64: renesas: r8a7795: add internal delay for i2c IPs
>       arm64: dts: r8a7795: Add pmu device nodes

Please me more consistent in patch description prefixes.


-Olof

[GIT PULL] Third Round of Renesas ARM64 Based SoC DT Updates for v4.5

[Simon Horman]

On Tue, Dec 22, 2015 at 12:52:08PM -0800, Olof Johansson wrote:
> On Fri, Dec 18, 2015 at 11:29:14AM +0900, Simon Horman wrote:
> > Hi Olof, Hi Kevin, Hi Arnd,
> > 
> > Please consider these third round of Renesas ARM64 based SoC DT updates
> > for v4.5.
> > 
> > This pull request is based on the previous round of
> > such requests, tagged as renesas-arm64-dt2-for-v4.5,
> > which you have already pulled.
> > 
> > 
> > The following changes since commit 672b79312c04016481a11d4b996b4512207ffbd3:
> > 
> >   arm64: renesas: salvator-x: Sound DVC support (2015-11-26 11:31:43 +0900)
> > 
> > are available in the git repository at:
> > 
> >   git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-arm64-dt3-for-v4.5
> 
> Merged, but:
> 
> >       arm64: dts: r8a7795: Add PSCI node
> >       arm64: dts: r8a7795: Add Cortex-A57 CPU cores
> >       arm64: renesas: salvator-x: Add board part number to DT bindings
> >       arm64: dts: r8a7795: Add SATA controller node
> >       arm64: dts: salvator-x: Enable SATA controller
> >       arm64: renesas: salvator-x: set ak4613 In/Out pin as single-end
> >       arm64: renesas: salvator-x: use CS2000 as AUDIO_CLK_B
> >       arm64: renesas: r8a7795: fix SATA clock assignment
> >       arm64: renesas: r8a7795: add internal delay for i2c IPs
> >       arm64: dts: r8a7795: Add pmu device nodes
> 
> Please me more consistent in patch description prefixes.

Sure, sorry for not being more attentive to that.

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Dirk Behme]

On 18.12.2015 11:47, Sudeep Holla wrote:
>
>
> On 18/12/15 10:44, Dirk Behme wrote:
>> On 18.12.2015 11:16, Sudeep Holla wrote:
>>>
>>>
>>> On 18/12/15 02:29, Simon Horman wrote:
>>>> From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>>>>
>>>> Enabling the performance monitor unit on r8a7795.
>>>>
>>>> Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
>>>> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>>>> Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
>>>> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
>>>> ---
>>>>   arch/arm64/boot/dts/renesas/r8a7795.dtsi | 12 ++++++++++++
>>>>   1 file changed, 12 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>> b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>> index 4d43cf31418f..b9229a49dabc 100644
>>>> --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>> +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>> @@ -230,6 +230,18 @@
>>>>               power-domains = <&cpg>;
>>>>           };
>>>>
>>>> +        pmu {
>>>> +            compatible = "arm,armv8-pmuv3";
>>>
>>> Please use arm,cortex-a57-pmu to be more specific. IIRC I mentioned
>>> this
>>> for some shmobile platform recently.
>>
>>
>> Yes. But as this patch has been applied already to some branches, I
>> incorporated your a57-pmu hint with an additional update patch:
>>
>> http://marc.info/?l=linux-sh&m=145011467914857
>>
>> Feel free to squash if still possible.
>>
>
> Ah OK, I didn't know the exact dts name, sorry for the noise.
> Better if it was posted as part of this series :)


I finally found some time to test this

http://marc.info/?l=linux-sh&m=145011467914857

and surprisingly it doesn't seem to work:

Using "arm,cortex-a57-pmu" results in

hw perfevents: enabled with armv8_cortex_a57 PMU driver, 7 counters 
available
hw perfevents: failed to probe PMU!
hw perfevents: failed to register PMU devices!

while switching back to "arm,armv8-pmuv3" successfully gives

hw perfevents: enabled with armv8_pmuv3 PMU driver, 7 counters available

without any further error messages.

Any idea?

Best regards

Dirk

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Sudeep Holla]

On 09/01/16 06:36, Dirk Behme wrote:
> On 18.12.2015 11:47, Sudeep Holla wrote:
>>
>>
>> On 18/12/15 10:44, Dirk Behme wrote:
>>> On 18.12.2015 11:16, Sudeep Holla wrote:

[...]

>>>>
>>>> Please use arm,cortex-a57-pmu to be more specific. IIRC I mentioned
>>>> this for some shmobile platform recently.
>>>
>>> Yes. But as this patch has been applied already to some branches, I
>>> incorporated your a57-pmu hint with an additional update patch:
>>>
>>> http://marc.info/?l=linux-sh&m=145011467914857
>>>
>>> Feel free to squash if still possible.
>>>
>>
>> Ah OK, I didn't know the exact dts name, sorry for the noise.
>> Better if it was posted as part of this series :)
>
>
> I finally found some time to test this
>
> http://marc.info/?l=linux-sh&m=145011467914857
>
> and surprisingly it doesn't seem to work:
>
> Using "arm,cortex-a57-pmu" results in
>
> hw perfevents: enabled with armv8_cortex_a57 PMU driver, 7 counters available

I had a quick look at the DT in the link above and IIUC A57 PMU's are
successfully probed.

> hw perfevents: failed to probe PMU!
> hw perfevents: failed to register PMU devices!
>

This must be for A53 PMUs. So I suspect if the update DT is passed
correctly to the kernel.

> while switching back to "arm,armv8-pmuv3" successfully gives
>
> hw perfevents: enabled with armv8_pmuv3 PMU driver, 7 counters available
>
> without any further error messages.
>
> Any idea?

You need to check if of_pmu_irq_cfg is failing.
Is the updated DT picked up correctly ?

-- 
Regards,
Sudeep

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Mark Rutland]

On Sat, Jan 09, 2016 at 07:36:42AM +0100, Dirk Behme wrote:
> On 18.12.2015 11:47, Sudeep Holla wrote:
> >
> >
> >On 18/12/15 10:44, Dirk Behme wrote:
> >>On 18.12.2015 11:16, Sudeep Holla wrote:
> >>>
> >>>
> >>>On 18/12/15 02:29, Simon Horman wrote:
> >>>>From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
> >>>>
> >>>>Enabling the performance monitor unit on r8a7795.
> >>>>
> >>>>Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
> >>>>Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
> >>>>Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
> >>>>Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
> >>>>---
> >>>>  arch/arm64/boot/dts/renesas/r8a7795.dtsi | 12 ++++++++++++
> >>>>  1 file changed, 12 insertions(+)
> >>>>
> >>>>diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> >>>>b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> >>>>index 4d43cf31418f..b9229a49dabc 100644
> >>>>--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> >>>>+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> >>>>@@ -230,6 +230,18 @@
> >>>>              power-domains = <&cpg>;
> >>>>          };
> >>>>
> >>>>+        pmu {
> >>>>+            compatible = "arm,armv8-pmuv3";
> >>>
> >>>Please use arm,cortex-a57-pmu to be more specific. IIRC I mentioned
> >>>this
> >>>for some shmobile platform recently.
> >>
> >>
> >>Yes. But as this patch has been applied already to some branches, I
> >>incorporated your a57-pmu hint with an additional update patch:
> >>
> >>http://marc.info/?l=linux-sh&m=145011467914857
> >>
> >>Feel free to squash if still possible.
> >>
> >
> >Ah OK, I didn't know the exact dts name, sorry for the noise.
> >Better if it was posted as part of this series :)
> 
> 
> I finally found some time to test this
> 
> http://marc.info/?l=linux-sh&m=145011467914857
> 
> and surprisingly it doesn't seem to work:
> 
> Using "arm,cortex-a57-pmu" results in
> 
> hw perfevents: enabled with armv8_cortex_a57 PMU driver, 7 counters
> available

This means all the probing logic worked for the A57 PMU.

> hw perfevents: failed to probe PMU!
> hw perfevents: failed to register PMU devices!

These are printed in arm_pmu_device_probe, and following the logic we
must have succesfully allocated the struct pmu, but failed in either
of_pmu_irq_cfg or init_fn (AKA armv8_a53_pmu_init).

In armv8_a53_pmu_init we call armv8pmu_probe_num_events, which will try
to SMP cross-call to an A53 core to probe the number of countesr
implemented. Perhaps the cross-call is failing.

Were the A53s online at this point?

Thanks,
Mark.

[PATCH 05/10] arm64: dts: r8a7795: Add pmu device nodes

[Dirk Behme]

On 11.01.2016 11:39, Mark Rutland wrote:
> On Sat, Jan 09, 2016 at 07:36:42AM +0100, Dirk Behme wrote:
>> On 18.12.2015 11:47, Sudeep Holla wrote:
>>>
>>>
>>> On 18/12/15 10:44, Dirk Behme wrote:
>>>> On 18.12.2015 11:16, Sudeep Holla wrote:
>>>>>
>>>>>
>>>>> On 18/12/15 02:29, Simon Horman wrote:
>>>>>> From: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>>>>>>
>>>>>> Enabling the performance monitor unit on r8a7795.
>>>>>>
>>>>>> Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com>
>>>>>> Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
>>>>>> Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
>>>>>> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
>>>>>> ---
>>>>>>   arch/arm64/boot/dts/renesas/r8a7795.dtsi | 12 ++++++++++++
>>>>>>   1 file changed, 12 insertions(+)
>>>>>>
>>>>>> diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>>>> b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>>>> index 4d43cf31418f..b9229a49dabc 100644
>>>>>> --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>>>> +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
>>>>>> @@ -230,6 +230,18 @@
>>>>>>               power-domains = <&cpg>;
>>>>>>           };
>>>>>>
>>>>>> +        pmu {
>>>>>> +            compatible = "arm,armv8-pmuv3";
>>>>>
>>>>> Please use arm,cortex-a57-pmu to be more specific. IIRC I mentioned
>>>>> this
>>>>> for some shmobile platform recently.
>>>>
>>>>
>>>> Yes. But as this patch has been applied already to some branches, I
>>>> incorporated your a57-pmu hint with an additional update patch:
>>>>
>>>> http://marc.info/?l=linux-sh&m=145011467914857
>>>>
>>>> Feel free to squash if still possible.
>>>>
>>>
>>> Ah OK, I didn't know the exact dts name, sorry for the noise.
>>> Better if it was posted as part of this series :)
>>
>>
>> I finally found some time to test this
>>
>> http://marc.info/?l=linux-sh&m=145011467914857
>>
>> and surprisingly it doesn't seem to work:
>>
>> Using "arm,cortex-a57-pmu" results in
>>
>> hw perfevents: enabled with armv8_cortex_a57 PMU driver, 7 counters
>> available
>
> This means all the probing logic worked for the A57 PMU.
>
>> hw perfevents: failed to probe PMU!
>> hw perfevents: failed to register PMU devices!
>
> These are printed in arm_pmu_device_probe, and following the logic we
> must have succesfully allocated the struct pmu, but failed in either
> of_pmu_irq_cfg or init_fn (AKA armv8_a53_pmu_init).
>
> In armv8_a53_pmu_init we call armv8pmu_probe_num_events, which will try
> to SMP cross-call to an A53 core to probe the number of countesr
> implemented. Perhaps the cross-call is failing.
>
> Were the A53s online at this point?


Ah, indeed, the A53s failed to run.

Maybe anything like

http://lists.infradead.org/pipermail/linux-arm-kernel/2016-January/398773.html

helps to make this more obvious, then?

Thanks!

Best regards

Dirk