[PATCH/RFC 00/12] ARM: shmobile: dts: Add overlays for various serial ports

[PATCH/RFC 00/12] ARM: shmobile: dts: Add overlays for various serial ports

[Geert Uytterhoeven]

	Hi all,

This patch series adds device tree overlays to use various serial ports
on expansion ports on the r8a7740/armadillo and r8a7791/koelsch
development boards.

This is an RFC for various reasons:
  - Do we want to store device tree overlay sources in the kernel source
    tree (see also the patch mentioned under dependencies)?
  - The first two patches add aliases for all serial ports to the main
    dts files, as of_alias_add() is not called yet when loading a device
    tree overlay that adds an alias.
  - The overlay sources use full paths to refer to the device nodes for
    creating aliases, as path references (unlike phandle references) are
    not yet supported by overlays.
  - The "ctsrts" DT property is not yet documented.
  - On Koelsch, SCIFB1 works for TX only. As SCIFB works on armadillo,
    and the same pins work for HSCIF1 on koelsch, this may be a silly
    pinctrl issue. Or not.
  - As the EXIO connectors on koelsch carry i2c signals, we can go wild
    and add i2c EEPROMs for identification, and implement a capemgr,
    like on BeagleBone ;-)

How to use it, using overlay configfs:
  - Copy your dtsos to /lib/firmware
  - mkdir /sys/kernel/config/device-tree/overlays/scif3
  - echo r8a7791-koelsch-exio-c-scif3.dtso >
    /sys/kernel/config/device-tree/overlays/scif3/path
  - Play with your new serial port
  - rmdir /sys/kernel/config/device-tree/overlays/scif3

This depends on:
  - https://github.com/pantoniou/linux-beagle-track-mainline.git#bbb-overlays
    for overlay configfs.
  - "[PATCH/RFC] kbuild: Create a rule for building device tree overlay
    objects" (https://lkml.org/lkml/2015/5/12/343), for building the dtsos.

Thanks for your comments!

Geert Uytterhoeven (12):
  ARM: shmobile: armadillo dts: Add aliases for all serial ports
  ARM: shmobile: koelsch dts: Add aliases for all serial ports
  ARM: shmobile: armadillo dts: Add overlay for SCIFA0 on CON15
  ARM: shmobile: armadillo dts: Add overlay for SCIFB on CON15
  ARM: shmobile: koelsch dts: Add overlay for HSCIF1 on EXIO A
  ARM: shmobile: koelsch dts: Add overlay for HSCIF2 on EXIO A
  ARM: shmobile: koelsch dts: Add overlay for SCIFB0 on EXIO A
  ARM: shmobile: koelsch dts: Add overlay for SCIFB1 on EXIO A
  ARM: shmobile: koelsch dts: Add overlay for SCIF3 on EXIO C
  ARM: shmobile: koelsch dts: Add overlay for SCIF5 on EXIO C
  ARM: shmobile: koelsch dts: Add overlay for SCIFA5(b) on EXIO C
  ARM: shmobile: koelsch dts: Add overlay for SCIFA5(c) on EXIO C

 arch/arm/boot/dts/Makefile                         | 14 +++++
 .../dts/r8a7740-armadillo800eva-con15-scifa0.dtso  | 53 +++++++++++++++++++
 .../dts/r8a7740-armadillo800eva-con15-scifb.dtso   | 52 +++++++++++++++++++
 arch/arm/boot/dts/r8a7740-armadillo800eva.dts      |  8 +++
 .../boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso    | 49 ++++++++++++++++++
 .../boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso    | 53 +++++++++++++++++++
 .../boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso    | 53 +++++++++++++++++++
 .../boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso    | 51 ++++++++++++++++++
 .../arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso | 60 ++++++++++++++++++++++
 .../arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso | 60 ++++++++++++++++++++++
 .../boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso  | 60 ++++++++++++++++++++++
 .../boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso  | 60 ++++++++++++++++++++++
 arch/arm/boot/dts/r8a7791-koelsch.dts              | 16 ++++++
 13 files changed, 589 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifa0.dtso
 create mode 100644 arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifb.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso

-- 
1.9.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.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/RFC 01/12] ARM: shmobile: armadillo dts: Add aliases for all serial ports

[Geert Uytterhoeven]

Add aliases for the remaining serial ports that don't already have an
alias.

This is a temporary workaround, until of_alias_add() is called when
loading a device tree overlay that adds an alias.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/r8a7740-armadillo800eva.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
index 2e31d8c01cbf6a74..e51ad203be73dcdb 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
@@ -20,7 +20,15 @@
 	compatible = "renesas,armadillo800eva", "renesas,r8a7740";
 
 	aliases {
+		serial0 = &scifa0;
 		serial1 = &scifa1;
+		serial2 = &scifa2;
+		serial3 = &scifa3;
+		serial4 = &scifa4;
+		serial5 = &scifa5;
+		serial6 = &scifa6;
+		serial7 = &scifa7;
+		serial8 = &scifb;
 	};
 
 	chosen {
-- 
1.9.1

[PATCH/RFC 02/12] ARM: shmobile: koelsch dts: Add aliases for all serial ports

[Geert Uytterhoeven]

Add aliases for the remaining serial ports that don't already have an
alias.

This is a temporary workaround, until of_alias_add() is called when
loading a device tree overlay that adds an alias.

Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
 arch/arm/boot/dts/r8a7791-koelsch.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index e9c24036f00027c9..c1cd047173b6aed7 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -50,6 +50,22 @@
 	aliases {
 		serial0 = &scif0;
 		serial1 = &scif1;
+		serial2 = &scif2;
+		serial3 = &scif3;
+		serial4 = &scif4;
+		serial5 = &scif5;
+		serial6 = &scifa0;
+		serial7 = &scifa1;
+		serial8 = &scifa2;
+		serial9 = &scifa3;
+		serial10 = &scifa4;
+		serial11 = &scifa5;
+		serial12 = &scifb0;
+		serial13 = &scifb1;
+		serial14 = &scifb2;
+		serial15 = &hscif0;
+		serial16 = &hscif1;
+		serial17 = &hscif2;
 	};
 
 	chosen {
-- 
1.9.1

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[PATCH/RFC 03/12] ARM: shmobile: armadillo dts: Add overlay for SCIFA0 on CON15

[Geert Uytterhoeven]

Provide access to SCIFA0 on the Expansion Interface Connector (CON15),
as documented in Table 18.15 of the "Armadillo-800 EVA Product Manual".

FIXME Document "ctsrts" DT property.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  5 ++
 .../dts/r8a7740-armadillo800eva-con15-scifa0.dtso  | 53 ++++++++++++++++++++++
 2 files changed, 58 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifa0.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 93be426297370a2c..5366e2112ad1ea18 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -666,6 +666,11 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt6592-evb.dtb \
 	mt8127-moose.dtb \
 	mt8135-evbp1.dtb
+
+ifeq ($(CONFIG_OF_OVERLAY),y)
+dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
+	r8a7740-armadillo800eva-con15-scifa0.dtbo \
+endif
 endif
 
 always		:= $(dtb-y)
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifa0.dtso b/arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifa0.dtso
new file mode 100644
index 0000000000000000..4a7d89ddf61d3dc2
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifa0.dtso
@@ -0,0 +1,53 @@
+/*
+ * Device Tree Overlay for SCIFA0 on r8a7740/Armadillo-800 EVA Expansion
+ * Interface Connector
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = CON15 pin 23
+ *   - TXD = CON15 pin 25
+ *   - CTS = CON15 pin 35
+ *   - RTS = CON15 pin 34
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial0 = &scifa0; */
+			serial0 = "/serial@e6c40000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scifa0_pins: serial0 {
+				renesas,groups = "scifa0_data", "scifa0_ctrl";
+				renesas,function = "scifa0";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&scifa0>;
+
+		__overlay__ {
+			pinctrl-0 = <&scifa0_pins>;
+			pinctrl-names = "default";
+
+			ctsrts;
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 04/12] ARM: shmobile: armadillo dts: Add overlay for SCIFB on CON15

[Geert Uytterhoeven]

Provide access to SCIFB on the Expansion Interface Connector (CON15), as
documented in Table 18.15 of the "Armadillo-800 EVA Product Manual".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../dts/r8a7740-armadillo800eva-con15-scifb.dtso   | 52 ++++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifb.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5366e2112ad1ea18..1f2478d6254ea70f 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -670,6 +670,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 ifeq ($(CONFIG_OF_OVERLAY),y)
 dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7740-armadillo800eva-con15-scifa0.dtbo \
+	r8a7740-armadillo800eva-con15-scifb.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifb.dtso b/arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifb.dtso
new file mode 100644
index 0000000000000000..34e46580e09565a9
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifb.dtso
@@ -0,0 +1,52 @@
+/*
+ * Device Tree Overlay for SCIFB on r8a7740/Armadillo-800 EVA Expansion
+ * Interface Connector
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = CON15 pin 41
+ *   - TXD = CON15 pin 40
+ *   - SCK = CON15 pin 42
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial8 = &scifb; */
+			serial8 = "/serial@e6c30000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scifb_pins: serial8 {
+				renesas,groups = "scifb_data_0";
+				renesas,function = "scifb";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&scifb>;
+
+		__overlay__ {
+			pinctrl-0 = <&scifb_pins>;
+			pinctrl-names = "default";
+
+			ctsrts;
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 05/12] ARM: shmobile: koelsch dts: Add overlay for HSCIF1 on EXIO A

[Geert Uytterhoeven]

Provide access to HSCIF1 on EXIO Connector A.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso    | 49 ++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 1f2478d6254ea70f..d800690e3aaf7bab 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -671,6 +671,7 @@ ifeq ($(CONFIG_OF_OVERLAY),y)
 dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7740-armadillo800eva-con15-scifa0.dtbo \
 	r8a7740-armadillo800eva-con15-scifb.dtbo \
+	r8a7791-koelsch-exio-a-hscif1.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso
new file mode 100644
index 0000000000000000..03793154b6fa2cb1
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso
@@ -0,0 +1,49 @@
+/*
+ * Device Tree Overlay for HSCIF1 on r8a7791/Koelsch EXIO Connector A
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector A pin 72
+ *   - TXD = EXIO Connector A pin 53
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial16 = &hscif1; */
+			serial16 = "/serial@e62c8000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			hscif1_pins: serial16 {
+				renesas,groups = "hscif1_data_b";
+				renesas,function = "hscif1";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&hscif1>;
+
+		__overlay__ {
+			pinctrl-0 = <&hscif1_pins>;
+			pinctrl-names = "default";
+
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 06/12] ARM: shmobile: koelsch dts: Add overlay for HSCIF2 on EXIO A

[Geert Uytterhoeven]

Provide access to HSCIF2 on EXIO Connector A.

FIXME Document "ctsrts" DT property.

Signed-off-by: Geert Uytterhoeven <geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso    | 53 ++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d800690e3aaf7bab..d5d2386694d57391 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -672,6 +672,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7740-armadillo800eva-con15-scifa0.dtbo \
 	r8a7740-armadillo800eva-con15-scifb.dtbo \
 	r8a7791-koelsch-exio-a-hscif1.dtbo \
+	r8a7791-koelsch-exio-a-hscif2.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso
new file mode 100644
index 0000000000000000..7570096b0377fc89
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso
@@ -0,0 +1,53 @@
+/*
+ * Device Tree Overlay for HSCIF2 on r8a7791/Koelsch EXIO Connector A
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector A pin 66
+ *   - TXD = EXIO Connector A pin 62
+ *   - CTS = EXIO Connector A pin 60
+ *   - RTS = EXIO Connector A pin 65
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial17 = &hscif2; */
+			serial17 = "/serial@e62d0000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			hscif2_pins: serial17 {
+				renesas,groups = "hscif2_data_b",
+						 "hscif2_ctrl_b";
+				renesas,function = "hscif2";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&hscif2>;
+
+		__overlay__ {
+			pinctrl-0 = <&hscif2_pins>;
+			pinctrl-names = "default";
+
+			ctsrts;
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

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[PATCH/RFC 07/12] ARM: shmobile: koelsch dts: Add overlay for SCIFB0 on EXIO A

[Geert Uytterhoeven]

Provide access to SCIFB0 on EXIO Connector A.

FIXME Document "ctsrts" DT property.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso    | 53 ++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d5d2386694d57391..576fa500e987ad2b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -673,6 +673,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7740-armadillo800eva-con15-scifb.dtbo \
 	r8a7791-koelsch-exio-a-hscif1.dtbo \
 	r8a7791-koelsch-exio-a-hscif2.dtbo \
+	r8a7791-koelsch-exio-a-scifb0.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso
new file mode 100644
index 0000000000000000..30b83c5d36b4fbe6
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso
@@ -0,0 +1,53 @@
+/*
+ * Device Tree Overlay for SCIFB0 on r8a7791/Koelsch EXIO Connector A
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector A pin 66
+ *   - TXD = EXIO Connector A pin 60
+ *   - CTS = EXIO Connector A pin 65
+ *   - RTS = EXIO Connector A pin 62
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial12 = &scifb0; */
+			serial12 = "/serial@e6c20000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scifb0_pins: serial12 {
+				renesas,groups = "scifb0_data_b",
+						 "scifb0_ctrl_b";
+				renesas,function = "scifb0";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&scifb0>;
+
+		__overlay__ {
+			pinctrl-0 = <&scifb0_pins>;
+			pinctrl-names = "default";
+
+			ctsrts;
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 08/12] ARM: shmobile: koelsch dts: Add overlay for SCIFB1 on EXIO A

[Geert Uytterhoeven]

Provide access to SCIFB1 on EXIO Connector A.

FIXME SCIFB1 TX works, RX doesn't.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso    | 51 ++++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 576fa500e987ad2b..19e36347aeb302b1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -674,6 +674,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7791-koelsch-exio-a-hscif1.dtbo \
 	r8a7791-koelsch-exio-a-hscif2.dtbo \
 	r8a7791-koelsch-exio-a-scifb0.dtbo \
+	r8a7791-koelsch-exio-a-scifb1.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso
new file mode 100644
index 0000000000000000..660a5b87e687f133
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso
@@ -0,0 +1,51 @@
+/*
+ * Device Tree Overlay for SCIFB1 on r8a7791/Koelsch EXIO Connector A
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector A pin 72
+ *   - TXD = EXIO Connector A pin 53
+ *   - SCK = EXIO Connector A pin 39
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial13 = &scifb1; */
+			serial13 = "/serial@e6c30000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scifb1_pins: serial13 {
+				renesas,groups = "scifb1_data_b",
+						 "scifb1_clk_b";
+				renesas,function = "scifb1";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&scifb1>;
+
+		__overlay__ {
+			pinctrl-0 = <&scifb1_pins>;
+			pinctrl-names = "default";
+
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 09/12] ARM: shmobile: koelsch dts: Add overlay for SCIF3 on EXIO C

[Geert Uytterhoeven]

Provide access to SCIF3 on EXIO Connector C.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso | 60 ++++++++++++++++++++++
 2 files changed, 61 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 19e36347aeb302b1..ec2abfe19329b791 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -675,6 +675,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7791-koelsch-exio-a-hscif2.dtbo \
 	r8a7791-koelsch-exio-a-scifb0.dtbo \
 	r8a7791-koelsch-exio-a-scifb1.dtbo \
+	r8a7791-koelsch-exio-c-scif3.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso
new file mode 100644
index 0000000000000000..3cb5fd138c0997c6
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso
@@ -0,0 +1,60 @@
+/*
+ * Device Tree Overlay for SCIF3 on r8a7791/Koelsch EXIO Connector C
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector C pin 40
+ *   - TXD = EXIO Connector C pin 38
+ *
+ * Notes:
+ *   - As these pins are shared with SDHI0, the latter is disabled first.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial3 = &scif3; */
+			serial3 = "/serial@e6ea8000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scif3_pins: serial3 {
+				renesas,groups = "scif3_data_c";
+				renesas,function = "scif3";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sdhi0>;
+
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@3 {
+		target = <&scif3>;
+
+		__overlay__ {
+			pinctrl-0 = <&scif3_pins>;
+			pinctrl-names = "default";
+
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 10/12] ARM: shmobile: koelsch dts: Add overlay for SCIF5 on EXIO C

[Geert Uytterhoeven]

Provide access to SCIF5 on EXIO Connector C.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso | 60 ++++++++++++++++++++++
 2 files changed, 61 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index ec2abfe19329b791..655a967b0566a3d1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -676,6 +676,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7791-koelsch-exio-a-scifb0.dtbo \
 	r8a7791-koelsch-exio-a-scifb1.dtbo \
 	r8a7791-koelsch-exio-c-scif3.dtbo \
+	r8a7791-koelsch-exio-c-scif5.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso
new file mode 100644
index 0000000000000000..37ec7006e1174a37
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso
@@ -0,0 +1,60 @@
+/*
+ * Device Tree Overlay for SCIF5 on r8a7791/Koelsch EXIO Connector C
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector C pin 39
+ *   - TXD = EXIO Connector C pin 37
+ *
+ * Notes:
+ *   - As these pins are shared with SDHI2, the latter is disabled first.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial5 = &scif5; */
+			serial5 = "/serial@e6ee8000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scif5_pins: serial5 {
+				renesas,groups = "scif5_data_b";
+				renesas,function = "scif5";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sdhi2>;
+
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@3 {
+		target = <&scif5>;
+
+		__overlay__ {
+			pinctrl-0 = <&scif5_pins>;
+			pinctrl-names = "default";
+
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 11/12] ARM: shmobile: koelsch dts: Add overlay for SCIFA5(b) on EXIO C

[Geert Uytterhoeven]

Provide access to SCIFA5(b) on EXIO Connector C.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso  | 60 ++++++++++++++++++++++
 2 files changed, 61 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 655a967b0566a3d1..a5cf8a6daf12ea1a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -677,6 +677,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7791-koelsch-exio-a-scifb1.dtbo \
 	r8a7791-koelsch-exio-c-scif3.dtbo \
 	r8a7791-koelsch-exio-c-scif5.dtbo \
+	r8a7791-koelsch-exio-c-scifa5-b.dtbo \
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso
new file mode 100644
index 0000000000000000..f8b7ea5ffc4b7247
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso
@@ -0,0 +1,60 @@
+/*
+ * Device Tree Overlay for SCIFA5(b) on r8a7791/Koelsch EXIO Connector C
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector C pin 40
+ *   - TXD = EXIO Connector C pin 38
+ *
+ * Notes:
+ *   - As these pins are shared with SDHI0, the latter is disabled first.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial11 = &scifa5; */
+			serial11 = "/serial@e6c80000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scifa5_pins_b: serial11_b {
+				renesas,groups = "scifa5_data_b";
+				renesas,function = "scifa5";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sdhi0>;
+
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@3 {
+		target = <&scifa5>;
+
+		__overlay__ {
+			pinctrl-0 = <&scifa5_pins_b>;
+			pinctrl-names = "default";
+
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

[PATCH/RFC 12/12] ARM: shmobile: koelsch dts: Add overlay for SCIFA5(c) on EXIO C

[Geert Uytterhoeven]

Provide access to SCIFA5(c) on EXIO Connector C.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm/boot/dts/Makefile                         |  1 +
 .../boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso  | 60 ++++++++++++++++++++++
 2 files changed, 61 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index a5cf8a6daf12ea1a..096d4939991b33c5 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -678,6 +678,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += \
 	r8a7791-koelsch-exio-c-scif3.dtbo \
 	r8a7791-koelsch-exio-c-scif5.dtbo \
 	r8a7791-koelsch-exio-c-scifa5-b.dtbo \
+	r8a7791-koelsch-exio-c-scifa5-c.dtbo
 endif
 endif
 
diff --git a/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso
new file mode 100644
index 0000000000000000..062cf6740207ddcf
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso
@@ -0,0 +1,60 @@
+/*
+ * Device Tree Overlay for SCIFA5(c) on r8a7791/Koelsch EXIO Connector C
+ *
+ * Copyright (C) 2015 Glider bvba
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Pinout:
+ *   - RXD = EXIO Connector C pin 39
+ *   - TXD = EXIO Connector C pin 37
+ *
+ * Notes:
+ *   - As these pins are shared with SDHI2, the latter is disabled first.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {
+		target-path = "/aliases";
+
+		__overlay__ {
+			/* serial11 = &scifa5; */
+			serial11 = "/serial@e6c80000";
+		};
+	};
+
+	fragment@1 {
+		target = <&pfc>;
+
+		__overlay__ {
+			scifa5_pins_c: serial11_c {
+				renesas,groups = "scifa5_data_c";
+				renesas,function = "scifa5";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sdhi2>;
+
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+
+	fragment@3 {
+		target = <&scifa5>;
+
+		__overlay__ {
+			pinctrl-0 = <&scifa5_pins_c>;
+			pinctrl-names = "default";
+
+			status = "okay";
+		};
+	};
+};
-- 
1.9.1

Re: [PATCH/RFC 00/12] ARM: shmobile: dts: Add overlays for various serial ports

[Pantelis Antoniou]

Hi Geert,

In general it looks just fine to me. 

> On May 12, 2015, at 20:37 , Geert Uytterhoeven <geert+renesas@glider.be> wrote:
> 
> 	Hi all,
> 
> This patch series adds device tree overlays to use various serial ports
> on expansion ports on the r8a7740/armadillo and r8a7791/koelsch
> development boards.
> 
> This is an RFC for various reasons:
>  - Do we want to store device tree overlay sources in the kernel source
>    tree (see also the patch mentioned under dependencies)?
>  - The first two patches add aliases for all serial ports to the main
>    dts files, as of_alias_add() is not called yet when loading a device
>    tree overlay that adds an alias.
>  - The overlay sources use full paths to refer to the device nodes for
>    creating aliases, as path references (unlike phandle references) are
>    not yet supported by overlays.

Hmm, phandle references are completely supported. You just have to remember
to build your base tree with the -@ option to generate the fixups :)

>  - The "ctsrts" DT property is not yet documented.
>  - On Koelsch, SCIFB1 works for TX only. As SCIFB works on armadillo,
>    and the same pins work for HSCIF1 on koelsch, this may be a silly
>    pinctrl issue. Or not.
>  - As the EXIO connectors on koelsch carry i2c signals, we can go wild
>    and add i2c EEPROMs for identification, and implement a capemgr,
>    like on BeagleBone ;-)
> 

FWIW you’ve been CCed in the submission of the beaglebone cape-manager.
Most of the code is dealing with bone’s EEPROM format but I am sure you’ll
find stuff to cannibalize if you go to that path :)

Some people have expressed some amount of interest for basic compatibility
among extension boards that do simple low-speed I/O.

For example an expansion board that provides a few I2C peripherals should
in theory be portable between any number of boards that provide a physically
identical i2c bus.

Now how to go about doing this is a different matter altogether.

> How to use it, using overlay configfs:
>  - Copy your dtsos to /lib/firmware
>  - mkdir /sys/kernel/config/device-tree/overlays/scif3
>  - echo r8a7791-koelsch-exio-c-scif3.dtso >
>    /sys/kernel/config/device-tree/overlays/scif3/path
>  - Play with your new serial port
>  - rmdir /sys/kernel/config/device-tree/overlays/scif3
> 
> This depends on:
>  - https://github.com/pantoniou/linux-beagle-track-mainline.git#bbb-overlays
>    for overlay configfs.
>  - "[PATCH/RFC] kbuild: Create a rule for building device tree overlay
>    objects" (https://lkml.org/lkml/2015/5/12/343), for building the dtsos.
> 
> Thanks for your comments!
> 
> Geert Uytterhoeven (12):
>  ARM: shmobile: armadillo dts: Add aliases for all serial ports
>  ARM: shmobile: koelsch dts: Add aliases for all serial ports
>  ARM: shmobile: armadillo dts: Add overlay for SCIFA0 on CON15
>  ARM: shmobile: armadillo dts: Add overlay for SCIFB on CON15
>  ARM: shmobile: koelsch dts: Add overlay for HSCIF1 on EXIO A
>  ARM: shmobile: koelsch dts: Add overlay for HSCIF2 on EXIO A
>  ARM: shmobile: koelsch dts: Add overlay for SCIFB0 on EXIO A
>  ARM: shmobile: koelsch dts: Add overlay for SCIFB1 on EXIO A
>  ARM: shmobile: koelsch dts: Add overlay for SCIF3 on EXIO C
>  ARM: shmobile: koelsch dts: Add overlay for SCIF5 on EXIO C
>  ARM: shmobile: koelsch dts: Add overlay for SCIFA5(b) on EXIO C
>  ARM: shmobile: koelsch dts: Add overlay for SCIFA5(c) on EXIO C
> 
> arch/arm/boot/dts/Makefile                         | 14 +++++
> .../dts/r8a7740-armadillo800eva-con15-scifa0.dtso  | 53 +++++++++++++++++++
> .../dts/r8a7740-armadillo800eva-con15-scifb.dtso   | 52 +++++++++++++++++++
> arch/arm/boot/dts/r8a7740-armadillo800eva.dts      |  8 +++
> .../boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso    | 49 ++++++++++++++++++
> .../boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso    | 53 +++++++++++++++++++
> .../boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso    | 53 +++++++++++++++++++
> .../boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso    | 51 ++++++++++++++++++
> .../arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso | 60 ++++++++++++++++++++++
> .../arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso | 60 ++++++++++++++++++++++
> .../boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso  | 60 ++++++++++++++++++++++
> .../boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso  | 60 ++++++++++++++++++++++
> arch/arm/boot/dts/r8a7791-koelsch.dts              | 16 ++++++
> 13 files changed, 589 insertions(+)
> create mode 100644 arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifa0.dtso
> create mode 100644 arch/arm/boot/dts/r8a7740-armadillo800eva-con15-scifb.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif1.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-hscif2.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb0.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-a-scifb1.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif3.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scif5.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-b.dtso
> create mode 100644 arch/arm/boot/dts/r8a7791-koelsch-exio-c-scifa5-c.dtso
> 
> -- 
> 1.9.1
> 
> Gr{oetje,eeting}s,
> 
> 						Geert
> 

All in all, I’m happy that someone else is using this stuff, I could use the company ;)

> --
> 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

Regards

— Pantelis

Re: [PATCH/RFC 00/12] ARM: shmobile: dts: Add overlays for various serial ports

[Geert Uytterhoeven]

Hi Pantelis,

On Wed, May 13, 2015 at 10:16 AM, Pantelis Antoniou
<pantelis.antoniou@konsulko.com> wrote:
>>  - The overlay sources use full paths to refer to the device nodes for
>>    creating aliases, as path references (unlike phandle references) are
>>    not yet supported by overlays.
>
> Hmm, phandle references are completely supported. You just have to remember
> to build your base tree with the -@ option to generate the fixups :)

The aliases need _path_ references.

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/RFC 00/12] ARM: shmobile: dts: Add overlays for various serial ports

[Pantelis Antoniou]

Hi Geert,

> On May 13, 2015, at 11:19 , Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> 
> Hi Pantelis,
> 
> On Wed, May 13, 2015 at 10:16 AM, Pantelis Antoniou
> <pantelis.antoniou@konsulko.com> wrote:
>>> - The overlay sources use full paths to refer to the device nodes for
>>>   creating aliases, as path references (unlike phandle references) are
>>>   not yet supported by overlays.
>> 
>> Hmm, phandle references are completely supported. You just have to remember
>> to build your base tree with the -@ option to generate the fixups :)

> The aliases need _path_ references.
> 

Ugh, yeah, that’s a problem :)

> 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/RFC 08/12] ARM: shmobile: koelsch dts: Add overlay for SCIFB1 on EXIO A

[Geert Uytterhoeven]

On Tue, May 12, 2015 at 7:37 PM, Geert Uytterhoeven
<geert+renesas@glider.be> wrote:
> Provide access to SCIFB1 on EXIO Connector A.
>
> FIXME SCIFB1 TX works, RX doesn't.

FTR, fixed by "[PATCH] pinctrl: sh-pfc: r8a7791/r8a7793: Correct SCIFB1_B SCK
MOD_SEL value" (http://thread.gmane.org/gmane.linux.kernel.gpio/10523).

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