[PATCHv2 0/4] Add Altera A10SR Status & Control Monitor

[PATCHv2 0/4] Add Altera A10SR Status & Control Monitor

[tthayer]

From: Thor Thayer <tthayer@opensource.altera.com>

This patch series adds the Altera Arria10 DevKit System Resource
chip's Status and Control Monitor to the A10SR Multi-Function
Device. An earlier patch added this to the hwmon class which
wasn't the proper place so this functionality is added to the
misc directory.
Version 2 changes the DT names from -mon to -monitor for better
readability and clarity and changed the previous version from
modular to built-in.

Thor Thayer (4):
  dt-bindings: mfd: Add Altera Arria10 SR Monitor
  misc: Add Altera Arria10 System Resource Control
  mfd: altr-a10sr: Add Arria10 SR Monitor
  ARM: socfpga: dts: Add Monitor to A10-SR MFD

 .../devicetree/bindings/mfd/altera-a10sr.txt       |   9 ++
 MAINTAINERS                                        |   1 +
 arch/arm/boot/dts/socfpga_arria10_socdk.dtsi       |   4 +
 drivers/mfd/altera-a10sr.c                         |   4 +
 drivers/misc/Kconfig                               |   7 +
 drivers/misc/Makefile                              |   1 +
 drivers/misc/altera-a10sr-monitor.c                | 176 +++++++++++++++++++++
 7 files changed, 202 insertions(+)
 create mode 100644 drivers/misc/altera-a10sr-monitor.c

-- 
1.9.1

[PATCHv2 0/4] Add Altera A10SR Status & Control Monitor

[tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx]

From: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>

This patch series adds the Altera Arria10 DevKit System Resource
chip's Status and Control Monitor to the A10SR Multi-Function
Device. An earlier patch added this to the hwmon class which
wasn't the proper place so this functionality is added to the
misc directory.
Version 2 changes the DT names from -mon to -monitor for better
readability and clarity and changed the previous version from
modular to built-in.

Thor Thayer (4):
  dt-bindings: mfd: Add Altera Arria10 SR Monitor
  misc: Add Altera Arria10 System Resource Control
  mfd: altr-a10sr: Add Arria10 SR Monitor
  ARM: socfpga: dts: Add Monitor to A10-SR MFD

 .../devicetree/bindings/mfd/altera-a10sr.txt       |   9 ++
 MAINTAINERS                                        |   1 +
 arch/arm/boot/dts/socfpga_arria10_socdk.dtsi       |   4 +
 drivers/mfd/altera-a10sr.c                         |   4 +
 drivers/misc/Kconfig                               |   7 +
 drivers/misc/Makefile                              |   1 +
 drivers/misc/altera-a10sr-monitor.c                | 176 +++++++++++++++++++++
 7 files changed, 202 insertions(+)
 create mode 100644 drivers/misc/altera-a10sr-monitor.c

-- 
1.9.1

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[PATCHv2 0/4] Add Altera A10SR Status & Control Monitor

[tthayer at opensource.altera.com]

From: Thor Thayer <tthayer@opensource.altera.com>

This patch series adds the Altera Arria10 DevKit System Resource
chip's Status and Control Monitor to the A10SR Multi-Function
Device. An earlier patch added this to the hwmon class which
wasn't the proper place so this functionality is added to the
misc directory.
Version 2 changes the DT names from -mon to -monitor for better
readability and clarity and changed the previous version from
modular to built-in.

Thor Thayer (4):
  dt-bindings: mfd: Add Altera Arria10 SR Monitor
  misc: Add Altera Arria10 System Resource Control
  mfd: altr-a10sr: Add Arria10 SR Monitor
  ARM: socfpga: dts: Add Monitor to A10-SR MFD

 .../devicetree/bindings/mfd/altera-a10sr.txt       |   9 ++
 MAINTAINERS                                        |   1 +
 arch/arm/boot/dts/socfpga_arria10_socdk.dtsi       |   4 +
 drivers/mfd/altera-a10sr.c                         |   4 +
 drivers/misc/Kconfig                               |   7 +
 drivers/misc/Makefile                              |   1 +
 drivers/misc/altera-a10sr-monitor.c                | 176 +++++++++++++++++++++
 7 files changed, 202 insertions(+)
 create mode 100644 drivers/misc/altera-a10sr-monitor.c

-- 
1.9.1

[PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[tthayer]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Arria10 DevKit System Resource Chip register and state
monitoring module to the MFD.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
Note: This needs to be applied to the bindings document that
was Acked & Applied but didn't reach the for-next branch.
See https://patchwork.ozlabs.org/patch/629397/
---
v2  Change compatible string -mon to -monitor for clarity
---
 Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
index ea151f2..c47be28 100644
--- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
+++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
@@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
 Device                   Description
 ------                   ----------
 a10sr_gpio               GPIO Controller
+a10sr_monitor            Register and State Monitoring
 
 Arria10 GPIO
 Required Properties:
@@ -27,6 +28,10 @@ Required Properties:
                       the second cell is used to specify flags.
                       See ../gpio/gpio.txt for more information.
 
+Arria10 Register and State Monitor
+Required Properties:
+- compatible        : Should be "altr,a10sr-monitor"
+
 Example:
 
         resource-manager@0 {
@@ -43,4 +48,8 @@ Example:
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		a10sr_monitor {
+			compatible = "altr,a10sr-monitor";
+		};
 	};
-- 
1.9.1

[PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[tthayer]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Arria10 DevKit System Resource Chip register and state
monitoring module to the MFD.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
Note: This needs to be applied to the bindings document that
was Acked & Applied but didn't reach the for-next branch.
See https://patchwork.ozlabs.org/patch/629397/
---
v2  Change compatible string -mon to -monitor for clarity
---
 Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
index ea151f2..c47be28 100644
--- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
+++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
@@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
 Device                   Description
 ------                   ----------
 a10sr_gpio               GPIO Controller
+a10sr_monitor            Register and State Monitoring
 
 Arria10 GPIO
 Required Properties:
@@ -27,6 +28,10 @@ Required Properties:
                       the second cell is used to specify flags.
                       See ../gpio/gpio.txt for more information.
 
+Arria10 Register and State Monitor
+Required Properties:
+- compatible        : Should be "altr,a10sr-monitor"
+
 Example:
 
         resource-manager@0 {
@@ -43,4 +48,8 @@ Example:
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		a10sr_monitor {
+			compatible = "altr,a10sr-monitor";
+		};
 	};
-- 
1.9.1

[PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[tthayer at opensource.altera.com]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Arria10 DevKit System Resource Chip register and state
monitoring module to the MFD.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
Note: This needs to be applied to the bindings document that
was Acked & Applied but didn't reach the for-next branch.
See https://patchwork.ozlabs.org/patch/629397/
---
v2  Change compatible string -mon to -monitor for clarity
---
 Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
index ea151f2..c47be28 100644
--- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
+++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
@@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
 Device                   Description
 ------                   ----------
 a10sr_gpio               GPIO Controller
+a10sr_monitor            Register and State Monitoring
 
 Arria10 GPIO
 Required Properties:
@@ -27,6 +28,10 @@ Required Properties:
                       the second cell is used to specify flags.
                       See ../gpio/gpio.txt for more information.
 
+Arria10 Register and State Monitor
+Required Properties:
+- compatible        : Should be "altr,a10sr-monitor"
+
 Example:
 
         resource-manager at 0 {
@@ -43,4 +48,8 @@ Example:
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		a10sr_monitor {
+			compatible = "altr,a10sr-monitor";
+		};
 	};
-- 
1.9.1

[PATCHv2 2/4] misc: Add Altera Arria10 System Resource Control

[tthayer]

From: Thor Thayer <tthayer@opensource.altera.com>

This patch adds the Altera Arria10 control & monitoring
functions to the Arria10 System Resource chip.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2  Change compatible string and filename from -mon to -monitor
    Change CONFIG from module to builtin.
    Make wm_rst register writeable.
---
 MAINTAINERS                         |   1 +
 drivers/misc/Kconfig                |   7 ++
 drivers/misc/Makefile               |   1 +
 drivers/misc/altera-a10sr-monitor.c | 176 ++++++++++++++++++++++++++++++++++++
 4 files changed, 185 insertions(+)
 create mode 100644 drivers/misc/altera-a10sr-monitor.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 813ea85..1c5b0be 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -631,6 +631,7 @@ M:	Thor Thayer <tthayer@opensource.altera.com>
 S:	Maintained
 F:	drivers/gpio/gpio-altera-a10sr.c
 F:	drivers/mfd/altera-a10sr.c
+F: 	drivers/misc/altera-a10sr-monitor.c
 F:	include/linux/mfd/altera-a10sr.h
 
 ALTERA TRIPLE SPEED ETHERNET DRIVER
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 64971ba..f42d459 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -766,6 +766,13 @@ config PANEL_BOOT_MESSAGE
 	  An empty message will only clear the display at driver init time. Any other
 	  printf()-formatted message is valid with newline and escape codes.
 
+config ALTERA_A10SR_MONITOR
+	bool "Altera Arria10 System Resource Monitor"
+	depends on MFD_ALTERA_A10SR
+	help
+	  This enables the System Resource monitor driver for the Altera
+	  Arria10 DevKit.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 3198336..9f6e77a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -43,6 +43,7 @@ obj-y				+= ti-st/
 obj-y				+= lis3lv02d/
 obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
 obj-$(CONFIG_ALTERA_STAPL)	+=altera-stapl/
+obj-$(CONFIG_ALTERA_A10SR_MONITOR)	+= altera-a10sr-monitor.o
 obj-$(CONFIG_INTEL_MEI)		+= mei/
 obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
 obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
diff --git a/drivers/misc/altera-a10sr-monitor.c b/drivers/misc/altera-a10sr-monitor.c
new file mode 100644
index 0000000..838ec2c
--- /dev/null
+++ b/drivers/misc/altera-a10sr-monitor.c
@@ -0,0 +1,176 @@
+/*
+ * Altera Arria10 DevKit System Resource Chip Monitor Driver
+ *
+ * Author: Thor Thayer <tthayer@opensource.altera.com>
+ *
+ * Copyright Intel Corporation (C) 2014-2016. All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Monitor driver for the Altera Arria10 MAX5 System Resource Chip
+ * Adapted from ics932s401.c
+ */
+
+#include <linux/err.h>
+#include <linux/mfd/altera-a10sr.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+struct altr_a10sr_regs {
+	struct regmap		*regmap;
+	struct attribute_group	attr_grp;
+};
+
+static ssize_t a10sr_show(struct device *dev,
+			  struct device_attribute *devattr, char *buf);
+static ssize_t a10sr_store(struct device *dev,
+			   struct device_attribute *devattr, const char *buf,
+			   size_t count);
+
+/* Define FS entries */
+static DEVICE_ATTR(max5_version, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_led, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_button, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_button_irq, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_pg1, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_pg2, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_pg3, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_fmcab, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_hps_resets, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_per_resets, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_sfpa, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_sfpb, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_i2c_master, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_wm_rst, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_wm_rst_key, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_pmbus, 0644, a10sr_show, a10sr_store);
+
+static struct attribute *altr_a10sr_attr[] = {
+	&dev_attr_max5_version.attr,
+	&dev_attr_max5_led.attr,
+	&dev_attr_max5_button.attr,
+	&dev_attr_max5_button_irq.attr,
+	&dev_attr_max5_pg1.attr,
+	&dev_attr_max5_pg2.attr,
+	&dev_attr_max5_pg3.attr,
+	&dev_attr_max5_fmcab.attr,
+	&dev_attr_max5_hps_resets.attr,
+	&dev_attr_max5_per_resets.attr,
+	&dev_attr_max5_sfpa.attr,
+	&dev_attr_max5_sfpb.attr,
+	&dev_attr_max5_i2c_master.attr,
+	&dev_attr_max5_wm_rst.attr,
+	&dev_attr_max5_wm_rst_key.attr,
+	&dev_attr_max5_pmbus.attr,
+	NULL
+};
+
+static const struct attribute_group a10sr_attr_group = {
+	.attrs = altr_a10sr_attr,
+};
+
+static ssize_t a10sr_show(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	int i, ret;
+	unsigned int val;
+	struct altr_a10sr_regs *a10sr_regs = dev_get_drvdata(dev);
+
+	for (i = 0; i < ARRAY_SIZE(altr_a10sr_attr); i++) {
+		if (devattr == (struct device_attribute *)altr_a10sr_attr[i])
+			break;
+	}
+
+	if (i >= ARRAY_SIZE(altr_a10sr_attr))
+		return -EINVAL;
+
+	/* Shift because LS bit set by regmap for Read */
+	i <<= 1;
+	ret = regmap_read(a10sr_regs->regmap, i, &val);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "0x%X\n", val);
+}
+
+static ssize_t a10sr_store(struct device *dev,
+			   struct device_attribute *devattr, const char *buf,
+			   size_t count)
+{
+	struct altr_a10sr_regs *a10sr_regs = dev_get_drvdata(dev);
+	unsigned long val;
+	int i, ret;
+
+	ret = kstrtol(buf, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(altr_a10sr_attr); i++) {
+		if (devattr == (struct device_attribute *)altr_a10sr_attr[i])
+			break;
+	}
+	if (i >= ARRAY_SIZE(altr_a10sr_attr))
+		return -EINVAL;
+
+	/* Shift because LS bit cleared by regmap for Write */
+	i <<= 1;
+	ret = regmap_write(a10sr_regs->regmap, i, val);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static int altr_a10sr_regs_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct altr_a10sr_regs *a10regs;
+	struct altr_a10sr *a10sr = dev_get_drvdata(pdev->dev.parent);
+
+	a10regs = devm_kzalloc(&pdev->dev, sizeof(*a10regs), GFP_KERNEL);
+	if (!a10regs)
+		return -ENOMEM;
+
+	a10regs->regmap = a10sr->regmap;
+	a10regs->attr_grp = a10sr_attr_group;
+
+	platform_set_drvdata(pdev, a10regs);
+
+	return sysfs_create_group(&pdev->dev.kobj, &a10sr_attr_group);
+}
+
+static int altr_a10sr_regs_remove(struct platform_device *pdev)
+{
+	struct altr_a10sr_regs *a10regs = platform_get_drvdata(pdev);
+
+	sysfs_remove_group(&pdev->dev.kobj, &a10regs->attr_grp);
+
+	return 0;
+}
+
+static const struct of_device_id altr_a10sr_regs_of_match[] = {
+	{ .compatible = "altr,a10sr-monitor" },
+	{ },
+};
+
+static struct platform_driver altr_a10sr_regs_driver = {
+	.probe = altr_a10sr_regs_probe,
+	.remove = altr_a10sr_regs_remove,
+	.driver = {
+		.name = "altr_a10sr_monitor",
+		.of_match_table = altr_a10sr_regs_of_match,
+	},
+};
+
+builtin_platform_driver(altr_a10sr_regs_driver);
-- 
1.9.1

[PATCHv2 2/4] misc: Add Altera Arria10 System Resource Control

[tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx]

From: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>

This patch adds the Altera Arria10 control & monitoring
functions to the Arria10 System Resource chip.

Signed-off-by: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
---
v2  Change compatible string and filename from -mon to -monitor
    Change CONFIG from module to builtin.
    Make wm_rst register writeable.
---
 MAINTAINERS                         |   1 +
 drivers/misc/Kconfig                |   7 ++
 drivers/misc/Makefile               |   1 +
 drivers/misc/altera-a10sr-monitor.c | 176 ++++++++++++++++++++++++++++++++++++
 4 files changed, 185 insertions(+)
 create mode 100644 drivers/misc/altera-a10sr-monitor.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 813ea85..1c5b0be 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -631,6 +631,7 @@ M:	Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
 S:	Maintained
 F:	drivers/gpio/gpio-altera-a10sr.c
 F:	drivers/mfd/altera-a10sr.c
+F: 	drivers/misc/altera-a10sr-monitor.c
 F:	include/linux/mfd/altera-a10sr.h
 
 ALTERA TRIPLE SPEED ETHERNET DRIVER
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 64971ba..f42d459 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -766,6 +766,13 @@ config PANEL_BOOT_MESSAGE
 	  An empty message will only clear the display at driver init time. Any other
 	  printf()-formatted message is valid with newline and escape codes.
 
+config ALTERA_A10SR_MONITOR
+	bool "Altera Arria10 System Resource Monitor"
+	depends on MFD_ALTERA_A10SR
+	help
+	  This enables the System Resource monitor driver for the Altera
+	  Arria10 DevKit.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 3198336..9f6e77a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -43,6 +43,7 @@ obj-y				+= ti-st/
 obj-y				+= lis3lv02d/
 obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
 obj-$(CONFIG_ALTERA_STAPL)	+=altera-stapl/
+obj-$(CONFIG_ALTERA_A10SR_MONITOR)	+= altera-a10sr-monitor.o
 obj-$(CONFIG_INTEL_MEI)		+= mei/
 obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
 obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
diff --git a/drivers/misc/altera-a10sr-monitor.c b/drivers/misc/altera-a10sr-monitor.c
new file mode 100644
index 0000000..838ec2c
--- /dev/null
+++ b/drivers/misc/altera-a10sr-monitor.c
@@ -0,0 +1,176 @@
+/*
+ * Altera Arria10 DevKit System Resource Chip Monitor Driver
+ *
+ * Author: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
+ *
+ * Copyright Intel Corporation (C) 2014-2016. All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Monitor driver for the Altera Arria10 MAX5 System Resource Chip
+ * Adapted from ics932s401.c
+ */
+
+#include <linux/err.h>
+#include <linux/mfd/altera-a10sr.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+struct altr_a10sr_regs {
+	struct regmap		*regmap;
+	struct attribute_group	attr_grp;
+};
+
+static ssize_t a10sr_show(struct device *dev,
+			  struct device_attribute *devattr, char *buf);
+static ssize_t a10sr_store(struct device *dev,
+			   struct device_attribute *devattr, const char *buf,
+			   size_t count);
+
+/* Define FS entries */
+static DEVICE_ATTR(max5_version, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_led, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_button, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_button_irq, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_pg1, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_pg2, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_pg3, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_fmcab, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_hps_resets, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_per_resets, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_sfpa, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_sfpb, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_i2c_master, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_wm_rst, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_wm_rst_key, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_pmbus, 0644, a10sr_show, a10sr_store);
+
+static struct attribute *altr_a10sr_attr[] = {
+	&dev_attr_max5_version.attr,
+	&dev_attr_max5_led.attr,
+	&dev_attr_max5_button.attr,
+	&dev_attr_max5_button_irq.attr,
+	&dev_attr_max5_pg1.attr,
+	&dev_attr_max5_pg2.attr,
+	&dev_attr_max5_pg3.attr,
+	&dev_attr_max5_fmcab.attr,
+	&dev_attr_max5_hps_resets.attr,
+	&dev_attr_max5_per_resets.attr,
+	&dev_attr_max5_sfpa.attr,
+	&dev_attr_max5_sfpb.attr,
+	&dev_attr_max5_i2c_master.attr,
+	&dev_attr_max5_wm_rst.attr,
+	&dev_attr_max5_wm_rst_key.attr,
+	&dev_attr_max5_pmbus.attr,
+	NULL
+};
+
+static const struct attribute_group a10sr_attr_group = {
+	.attrs = altr_a10sr_attr,
+};
+
+static ssize_t a10sr_show(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	int i, ret;
+	unsigned int val;
+	struct altr_a10sr_regs *a10sr_regs = dev_get_drvdata(dev);
+
+	for (i = 0; i < ARRAY_SIZE(altr_a10sr_attr); i++) {
+		if (devattr == (struct device_attribute *)altr_a10sr_attr[i])
+			break;
+	}
+
+	if (i >= ARRAY_SIZE(altr_a10sr_attr))
+		return -EINVAL;
+
+	/* Shift because LS bit set by regmap for Read */
+	i <<= 1;
+	ret = regmap_read(a10sr_regs->regmap, i, &val);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "0x%X\n", val);
+}
+
+static ssize_t a10sr_store(struct device *dev,
+			   struct device_attribute *devattr, const char *buf,
+			   size_t count)
+{
+	struct altr_a10sr_regs *a10sr_regs = dev_get_drvdata(dev);
+	unsigned long val;
+	int i, ret;
+
+	ret = kstrtol(buf, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(altr_a10sr_attr); i++) {
+		if (devattr == (struct device_attribute *)altr_a10sr_attr[i])
+			break;
+	}
+	if (i >= ARRAY_SIZE(altr_a10sr_attr))
+		return -EINVAL;
+
+	/* Shift because LS bit cleared by regmap for Write */
+	i <<= 1;
+	ret = regmap_write(a10sr_regs->regmap, i, val);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static int altr_a10sr_regs_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct altr_a10sr_regs *a10regs;
+	struct altr_a10sr *a10sr = dev_get_drvdata(pdev->dev.parent);
+
+	a10regs = devm_kzalloc(&pdev->dev, sizeof(*a10regs), GFP_KERNEL);
+	if (!a10regs)
+		return -ENOMEM;
+
+	a10regs->regmap = a10sr->regmap;
+	a10regs->attr_grp = a10sr_attr_group;
+
+	platform_set_drvdata(pdev, a10regs);
+
+	return sysfs_create_group(&pdev->dev.kobj, &a10sr_attr_group);
+}
+
+static int altr_a10sr_regs_remove(struct platform_device *pdev)
+{
+	struct altr_a10sr_regs *a10regs = platform_get_drvdata(pdev);
+
+	sysfs_remove_group(&pdev->dev.kobj, &a10regs->attr_grp);
+
+	return 0;
+}
+
+static const struct of_device_id altr_a10sr_regs_of_match[] = {
+	{ .compatible = "altr,a10sr-monitor" },
+	{ },
+};
+
+static struct platform_driver altr_a10sr_regs_driver = {
+	.probe = altr_a10sr_regs_probe,
+	.remove = altr_a10sr_regs_remove,
+	.driver = {
+		.name = "altr_a10sr_monitor",
+		.of_match_table = altr_a10sr_regs_of_match,
+	},
+};
+
+builtin_platform_driver(altr_a10sr_regs_driver);
-- 
1.9.1

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[PATCHv2 2/4] misc: Add Altera Arria10 System Resource Control

[tthayer at opensource.altera.com]

From: Thor Thayer <tthayer@opensource.altera.com>

This patch adds the Altera Arria10 control & monitoring
functions to the Arria10 System Resource chip.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2  Change compatible string and filename from -mon to -monitor
    Change CONFIG from module to builtin.
    Make wm_rst register writeable.
---
 MAINTAINERS                         |   1 +
 drivers/misc/Kconfig                |   7 ++
 drivers/misc/Makefile               |   1 +
 drivers/misc/altera-a10sr-monitor.c | 176 ++++++++++++++++++++++++++++++++++++
 4 files changed, 185 insertions(+)
 create mode 100644 drivers/misc/altera-a10sr-monitor.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 813ea85..1c5b0be 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -631,6 +631,7 @@ M:	Thor Thayer <tthayer@opensource.altera.com>
 S:	Maintained
 F:	drivers/gpio/gpio-altera-a10sr.c
 F:	drivers/mfd/altera-a10sr.c
+F: 	drivers/misc/altera-a10sr-monitor.c
 F:	include/linux/mfd/altera-a10sr.h
 
 ALTERA TRIPLE SPEED ETHERNET DRIVER
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 64971ba..f42d459 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -766,6 +766,13 @@ config PANEL_BOOT_MESSAGE
 	  An empty message will only clear the display at driver init time. Any other
 	  printf()-formatted message is valid with newline and escape codes.
 
+config ALTERA_A10SR_MONITOR
+	bool "Altera Arria10 System Resource Monitor"
+	depends on MFD_ALTERA_A10SR
+	help
+	  This enables the System Resource monitor driver for the Altera
+	  Arria10 DevKit.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 3198336..9f6e77a 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -43,6 +43,7 @@ obj-y				+= ti-st/
 obj-y				+= lis3lv02d/
 obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
 obj-$(CONFIG_ALTERA_STAPL)	+=altera-stapl/
+obj-$(CONFIG_ALTERA_A10SR_MONITOR)	+= altera-a10sr-monitor.o
 obj-$(CONFIG_INTEL_MEI)		+= mei/
 obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
 obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
diff --git a/drivers/misc/altera-a10sr-monitor.c b/drivers/misc/altera-a10sr-monitor.c
new file mode 100644
index 0000000..838ec2c
--- /dev/null
+++ b/drivers/misc/altera-a10sr-monitor.c
@@ -0,0 +1,176 @@
+/*
+ * Altera Arria10 DevKit System Resource Chip Monitor Driver
+ *
+ * Author: Thor Thayer <tthayer@opensource.altera.com>
+ *
+ * Copyright Intel Corporation (C) 2014-2016. All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Monitor driver for the Altera Arria10 MAX5 System Resource Chip
+ * Adapted from ics932s401.c
+ */
+
+#include <linux/err.h>
+#include <linux/mfd/altera-a10sr.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+struct altr_a10sr_regs {
+	struct regmap		*regmap;
+	struct attribute_group	attr_grp;
+};
+
+static ssize_t a10sr_show(struct device *dev,
+			  struct device_attribute *devattr, char *buf);
+static ssize_t a10sr_store(struct device *dev,
+			   struct device_attribute *devattr, const char *buf,
+			   size_t count);
+
+/* Define FS entries */
+static DEVICE_ATTR(max5_version, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_led, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_button, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_button_irq, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_pg1, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_pg2, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_pg3, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_fmcab, 0444, a10sr_show, NULL);
+static DEVICE_ATTR(max5_hps_resets, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_per_resets, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_sfpa, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_sfpb, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_i2c_master, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_wm_rst, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_wm_rst_key, 0644, a10sr_show, a10sr_store);
+static DEVICE_ATTR(max5_pmbus, 0644, a10sr_show, a10sr_store);
+
+static struct attribute *altr_a10sr_attr[] = {
+	&dev_attr_max5_version.attr,
+	&dev_attr_max5_led.attr,
+	&dev_attr_max5_button.attr,
+	&dev_attr_max5_button_irq.attr,
+	&dev_attr_max5_pg1.attr,
+	&dev_attr_max5_pg2.attr,
+	&dev_attr_max5_pg3.attr,
+	&dev_attr_max5_fmcab.attr,
+	&dev_attr_max5_hps_resets.attr,
+	&dev_attr_max5_per_resets.attr,
+	&dev_attr_max5_sfpa.attr,
+	&dev_attr_max5_sfpb.attr,
+	&dev_attr_max5_i2c_master.attr,
+	&dev_attr_max5_wm_rst.attr,
+	&dev_attr_max5_wm_rst_key.attr,
+	&dev_attr_max5_pmbus.attr,
+	NULL
+};
+
+static const struct attribute_group a10sr_attr_group = {
+	.attrs = altr_a10sr_attr,
+};
+
+static ssize_t a10sr_show(struct device *dev, struct device_attribute *devattr,
+			  char *buf)
+{
+	int i, ret;
+	unsigned int val;
+	struct altr_a10sr_regs *a10sr_regs = dev_get_drvdata(dev);
+
+	for (i = 0; i < ARRAY_SIZE(altr_a10sr_attr); i++) {
+		if (devattr == (struct device_attribute *)altr_a10sr_attr[i])
+			break;
+	}
+
+	if (i >= ARRAY_SIZE(altr_a10sr_attr))
+		return -EINVAL;
+
+	/* Shift because LS bit set by regmap for Read */
+	i <<= 1;
+	ret = regmap_read(a10sr_regs->regmap, i, &val);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "0x%X\n", val);
+}
+
+static ssize_t a10sr_store(struct device *dev,
+			   struct device_attribute *devattr, const char *buf,
+			   size_t count)
+{
+	struct altr_a10sr_regs *a10sr_regs = dev_get_drvdata(dev);
+	unsigned long val;
+	int i, ret;
+
+	ret = kstrtol(buf, 0, &val);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(altr_a10sr_attr); i++) {
+		if (devattr == (struct device_attribute *)altr_a10sr_attr[i])
+			break;
+	}
+	if (i >= ARRAY_SIZE(altr_a10sr_attr))
+		return -EINVAL;
+
+	/* Shift because LS bit cleared by regmap for Write */
+	i <<= 1;
+	ret = regmap_write(a10sr_regs->regmap, i, val);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static int altr_a10sr_regs_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct altr_a10sr_regs *a10regs;
+	struct altr_a10sr *a10sr = dev_get_drvdata(pdev->dev.parent);
+
+	a10regs = devm_kzalloc(&pdev->dev, sizeof(*a10regs), GFP_KERNEL);
+	if (!a10regs)
+		return -ENOMEM;
+
+	a10regs->regmap = a10sr->regmap;
+	a10regs->attr_grp = a10sr_attr_group;
+
+	platform_set_drvdata(pdev, a10regs);
+
+	return sysfs_create_group(&pdev->dev.kobj, &a10sr_attr_group);
+}
+
+static int altr_a10sr_regs_remove(struct platform_device *pdev)
+{
+	struct altr_a10sr_regs *a10regs = platform_get_drvdata(pdev);
+
+	sysfs_remove_group(&pdev->dev.kobj, &a10regs->attr_grp);
+
+	return 0;
+}
+
+static const struct of_device_id altr_a10sr_regs_of_match[] = {
+	{ .compatible = "altr,a10sr-monitor" },
+	{ },
+};
+
+static struct platform_driver altr_a10sr_regs_driver = {
+	.probe = altr_a10sr_regs_probe,
+	.remove = altr_a10sr_regs_remove,
+	.driver = {
+		.name = "altr_a10sr_monitor",
+		.of_match_table = altr_a10sr_regs_of_match,
+	},
+};
+
+builtin_platform_driver(altr_a10sr_regs_driver);
-- 
1.9.1

[PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[tthayer]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Altera Arria10 DevKit System Resource Monitor functionality
to the MFD device.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2  Change from -mon to -monitor for clarity
---
 drivers/mfd/altera-a10sr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
index 06e1f7f..30de652 100644
--- a/drivers/mfd/altera-a10sr.c
+++ b/drivers/mfd/altera-a10sr.c
@@ -33,6 +33,10 @@
 		.name = "altr_a10sr_gpio",
 		.of_compatible = "altr,a10sr-gpio",
 	},
+	{
+		.name = "altr_a10sr_monitor",
+		.of_compatible = "altr,a10sr-monitor",
+	},
 };
 
 static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
-- 
1.9.1

[PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx]

From: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>

Add the Altera Arria10 DevKit System Resource Monitor functionality
to the MFD device.

Signed-off-by: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
---
v2  Change from -mon to -monitor for clarity
---
 drivers/mfd/altera-a10sr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
index 06e1f7f..30de652 100644
--- a/drivers/mfd/altera-a10sr.c
+++ b/drivers/mfd/altera-a10sr.c
@@ -33,6 +33,10 @@
 		.name = "altr_a10sr_gpio",
 		.of_compatible = "altr,a10sr-gpio",
 	},
+	{
+		.name = "altr_a10sr_monitor",
+		.of_compatible = "altr,a10sr-monitor",
+	},
 };
 
 static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
-- 
1.9.1

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[PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[tthayer at opensource.altera.com]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Altera Arria10 DevKit System Resource Monitor functionality
to the MFD device.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2  Change from -mon to -monitor for clarity
---
 drivers/mfd/altera-a10sr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
index 06e1f7f..30de652 100644
--- a/drivers/mfd/altera-a10sr.c
+++ b/drivers/mfd/altera-a10sr.c
@@ -33,6 +33,10 @@
 		.name = "altr_a10sr_gpio",
 		.of_compatible = "altr,a10sr-gpio",
 	},
+	{
+		.name = "altr_a10sr_monitor",
+		.of_compatible = "altr,a10sr-monitor",
+	},
 };
 
 static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
-- 
1.9.1

[PATCHv2 4/4] ARM: socfpga: dts: Add Monitor to A10-SR MFD

[tthayer]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Monitor functionality to the Arria10 DevKit
System Resource chip.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2  Change from -mon to -monitor for clarity.
---
 arch/arm/boot/dts/socfpga_arria10_socdk.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
index eb00ae3..61a5f42 100644
--- a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
@@ -121,6 +121,10 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		a10sr_monitor {
+			compatible = "altr,a10sr-monitor";
+		};
 	};
 };
 
-- 
1.9.1

[PATCHv2 4/4] ARM: socfpga: dts: Add Monitor to A10-SR MFD

[tthayer]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Monitor functionality to the Arria10 DevKit
System Resource chip.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2  Change from -mon to -monitor for clarity.
---
 arch/arm/boot/dts/socfpga_arria10_socdk.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
index eb00ae3..61a5f42 100644
--- a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
@@ -121,6 +121,10 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		a10sr_monitor {
+			compatible = "altr,a10sr-monitor";
+		};
 	};
 };
 
-- 
1.9.1

[PATCHv2 4/4] ARM: socfpga: dts: Add Monitor to A10-SR MFD

[tthayer at opensource.altera.com]

From: Thor Thayer <tthayer@opensource.altera.com>

Add the Monitor functionality to the Arria10 DevKit
System Resource chip.

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2  Change from -mon to -monitor for clarity.
---
 arch/arm/boot/dts/socfpga_arria10_socdk.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
index eb00ae3..61a5f42 100644
--- a/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi
@@ -121,6 +121,10 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 		};
+
+		a10sr_monitor {
+			compatible = "altr,a10sr-monitor";
+		};
 	};
 };
 
-- 
1.9.1

Re: [PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Rob Herring]

On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer@opensource.altera.com wrote:
> From: Thor Thayer <tthayer@opensource.altera.com>
> 
> Add the Arria10 DevKit System Resource Chip register and state
> monitoring module to the MFD.
> 
> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
> ---
> Note: This needs to be applied to the bindings document that
> was Acked & Applied but didn't reach the for-next branch.
> See https://patchwork.ozlabs.org/patch/629397/
> ---
> v2  Change compatible string -mon to -monitor for clarity
> ---
>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> index ea151f2..c47be28 100644
> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>  Device                   Description
>  ------                   ----------
>  a10sr_gpio               GPIO Controller

This should be just "gpio" BTW.

> +a10sr_monitor            Register and State Monitoring

s/_/-/ or maybe just "monitor". Not really a generic node name to use 
for this.

Rob

Re: [PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Rob Herring]

On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org wrote:
> From: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
> 
> Add the Arria10 DevKit System Resource Chip register and state
> monitoring module to the MFD.
> 
> Signed-off-by: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
> ---
> Note: This needs to be applied to the bindings document that
> was Acked & Applied but didn't reach the for-next branch.
> See https://patchwork.ozlabs.org/patch/629397/
> ---
> v2  Change compatible string -mon to -monitor for clarity
> ---
>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> index ea151f2..c47be28 100644
> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>  Device                   Description
>  ------                   ----------
>  a10sr_gpio               GPIO Controller

This should be just "gpio" BTW.

> +a10sr_monitor            Register and State Monitoring

s/_/-/ or maybe just "monitor". Not really a generic node name to use 
for this.

Rob
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[PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Rob Herring]

On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer at opensource.altera.com wrote:
> From: Thor Thayer <tthayer@opensource.altera.com>
> 
> Add the Arria10 DevKit System Resource Chip register and state
> monitoring module to the MFD.
> 
> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
> ---
> Note: This needs to be applied to the bindings document that
> was Acked & Applied but didn't reach the for-next branch.
> See https://patchwork.ozlabs.org/patch/629397/
> ---
> v2  Change compatible string -mon to -monitor for clarity
> ---
>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> index ea151f2..c47be28 100644
> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>  Device                   Description
>  ------                   ----------
>  a10sr_gpio               GPIO Controller

This should be just "gpio" BTW.

> +a10sr_monitor            Register and State Monitoring

s/_/-/ or maybe just "monitor". Not really a generic node name to use 
for this.

Rob

Re: [PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Lee Jones]

On Thu, 27 Oct 2016, tthayer@opensource.altera.com wrote:

> From: Thor Thayer <tthayer@opensource.altera.com>
> 
> Add the Altera Arria10 DevKit System Resource Monitor functionality
> to the MFD device.
> 
> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
> ---
> v2  Change from -mon to -monitor for clarity
> ---
>  drivers/mfd/altera-a10sr.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
> index 06e1f7f..30de652 100644
> --- a/drivers/mfd/altera-a10sr.c
> +++ b/drivers/mfd/altera-a10sr.c
> @@ -33,6 +33,10 @@
>  		.name = "altr_a10sr_gpio",
>  		.of_compatible = "altr,a10sr-gpio",
>  	},
> +	{
> +		.name = "altr_a10sr_monitor",
> +		.of_compatible = "altr,a10sr-monitor",

So long as you use whichever compatible you agree on with Rob:

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>

> +	},
>  };
>  
>  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Lee Jones]

On Thu, 27 Oct 2016, tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org wrote:

> From: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
> 
> Add the Altera Arria10 DevKit System Resource Monitor functionality
> to the MFD device.
> 
> Signed-off-by: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
> ---
> v2  Change from -mon to -monitor for clarity
> ---
>  drivers/mfd/altera-a10sr.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
> index 06e1f7f..30de652 100644
> --- a/drivers/mfd/altera-a10sr.c
> +++ b/drivers/mfd/altera-a10sr.c
> @@ -33,6 +33,10 @@
>  		.name = "altr_a10sr_gpio",
>  		.of_compatible = "altr,a10sr-gpio",
>  	},
> +	{
> +		.name = "altr_a10sr_monitor",
> +		.of_compatible = "altr,a10sr-monitor",

So long as you use whichever compatible you agree on with Rob:

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

> +	},
>  };
>  
>  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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[PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Lee Jones]

On Thu, 27 Oct 2016, tthayer at opensource.altera.com wrote:

> From: Thor Thayer <tthayer@opensource.altera.com>
> 
> Add the Altera Arria10 DevKit System Resource Monitor functionality
> to the MFD device.
> 
> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
> ---
> v2  Change from -mon to -monitor for clarity
> ---
>  drivers/mfd/altera-a10sr.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
> index 06e1f7f..30de652 100644
> --- a/drivers/mfd/altera-a10sr.c
> +++ b/drivers/mfd/altera-a10sr.c
> @@ -33,6 +33,10 @@
>  		.name = "altr_a10sr_gpio",
>  		.of_compatible = "altr,a10sr-gpio",
>  	},
> +	{
> +		.name = "altr_a10sr_monitor",
> +		.of_compatible = "altr,a10sr-monitor",

So long as you use whichever compatible you agree on with Rob:

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>

> +	},
>  };
>  
>  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org ? Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Thor Thayer]

Hi Rob,

On 10/31/2016 12:36 AM, Rob Herring wrote:
> On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer@opensource.altera.com wrote:
>> From: Thor Thayer <tthayer@opensource.altera.com>
>>
>> Add the Arria10 DevKit System Resource Chip register and state
>> monitoring module to the MFD.
>>
>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>> ---
>> Note: This needs to be applied to the bindings document that
>> was Acked & Applied but didn't reach the for-next branch.
>> See https://patchwork.ozlabs.org/patch/629397/
>> ---
>> v2  Change compatible string -mon to -monitor for clarity
>> ---
>>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> index ea151f2..c47be28 100644
>> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>>  Device                   Description
>>  ------                   ----------
>>  a10sr_gpio               GPIO Controller
>
> This should be just "gpio" BTW.

I reason I preprend a10sr_ is to distinguish this GPIO from the other 
GPIOs when binding to our LEDs (see below). I think the LEDs need a 
unique node name (unless I'm not understanding something).

A less important reason I use a10sr_gpio on the node name is that I can 
cat the /sys/class/gpio/gpioxxx/label and see that it is associated with 
the a10sr instead of one of our other general GPIOs. Is there a better 
way to distinguish these?

>
>> +a10sr_monitor            Register and State Monitoring
>
> s/_/-/ or maybe just "monitor". Not really a generic node name to use
> for this.
>

The reason I use _ for the node name is that the DTC fails if I 
reference a node name with "-" but works OK for "_". For instance, I get 
an error if the LEDs reference "a10sr-gpio" but "a10sr_gpio" compiles ok.

Thanks for reviewing!

Thor

> Rob
>

Re: [PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Thor Thayer]

Hi Rob,

On 10/31/2016 12:36 AM, Rob Herring wrote:
> On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer@opensource.altera.com wrote:
>> From: Thor Thayer <tthayer@opensource.altera.com>
>>
>> Add the Arria10 DevKit System Resource Chip register and state
>> monitoring module to the MFD.
>>
>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>> ---
>> Note: This needs to be applied to the bindings document that
>> was Acked & Applied but didn't reach the for-next branch.
>> See https://patchwork.ozlabs.org/patch/629397/
>> ---
>> v2  Change compatible string -mon to -monitor for clarity
>> ---
>>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> index ea151f2..c47be28 100644
>> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>>  Device                   Description
>>  ------                   ----------
>>  a10sr_gpio               GPIO Controller
>
> This should be just "gpio" BTW.

I reason I preprend a10sr_ is to distinguish this GPIO from the other 
GPIOs when binding to our LEDs (see below). I think the LEDs need a 
unique node name (unless I'm not understanding something).

A less important reason I use a10sr_gpio on the node name is that I can 
cat the /sys/class/gpio/gpioxxx/label and see that it is associated with 
the a10sr instead of one of our other general GPIOs. Is there a better 
way to distinguish these?

>
>> +a10sr_monitor            Register and State Monitoring
>
> s/_/-/ or maybe just "monitor". Not really a generic node name to use
> for this.
>

The reason I use _ for the node name is that the DTC fails if I 
reference a node name with "-" but works OK for "_". For instance, I get 
an error if the LEDs reference "a10sr-gpio" but "a10sr_gpio" compiles ok.

Thanks for reviewing!

Thor

> Rob
>

[PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Thor Thayer]

Hi Rob,

On 10/31/2016 12:36 AM, Rob Herring wrote:
> On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer at opensource.altera.com wrote:
>> From: Thor Thayer <tthayer@opensource.altera.com>
>>
>> Add the Arria10 DevKit System Resource Chip register and state
>> monitoring module to the MFD.
>>
>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>> ---
>> Note: This needs to be applied to the bindings document that
>> was Acked & Applied but didn't reach the for-next branch.
>> See https://patchwork.ozlabs.org/patch/629397/
>> ---
>> v2  Change compatible string -mon to -monitor for clarity
>> ---
>>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> index ea151f2..c47be28 100644
>> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>>  Device                   Description
>>  ------                   ----------
>>  a10sr_gpio               GPIO Controller
>
> This should be just "gpio" BTW.

I reason I preprend a10sr_ is to distinguish this GPIO from the other 
GPIOs when binding to our LEDs (see below). I think the LEDs need a 
unique node name (unless I'm not understanding something).

A less important reason I use a10sr_gpio on the node name is that I can 
cat the /sys/class/gpio/gpioxxx/label and see that it is associated with 
the a10sr instead of one of our other general GPIOs. Is there a better 
way to distinguish these?

>
>> +a10sr_monitor            Register and State Monitoring
>
> s/_/-/ or maybe just "monitor". Not really a generic node name to use
> for this.
>

The reason I use _ for the node name is that the DTC fails if I 
reference a node name with "-" but works OK for "_". For instance, I get 
an error if the LEDs reference "a10sr-gpio" but "a10sr_gpio" compiles ok.

Thanks for reviewing!

Thor

> Rob
>

Re: [PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Rob Herring]

On Mon, Oct 31, 2016 at 10:28 AM, Thor Thayer
<tthayer@opensource.altera.com> wrote:
> Hi Rob,
>
> On 10/31/2016 12:36 AM, Rob Herring wrote:
>>
>> On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer@opensource.altera.com
>> wrote:
>>>
>>> From: Thor Thayer <tthayer@opensource.altera.com>
>>>
>>> Add the Arria10 DevKit System Resource Chip register and state
>>> monitoring module to the MFD.
>>>
>>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>>> ---
>>> Note: This needs to be applied to the bindings document that
>>> was Acked & Applied but didn't reach the for-next branch.
>>> See https://patchwork.ozlabs.org/patch/629397/
>>> ---
>>> v2  Change compatible string -mon to -monitor for clarity
>>> ---
>>>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>>>  1 file changed, 9 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> index ea151f2..c47be28 100644
>>> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>>>  Device                   Description
>>>  ------                   ----------
>>>  a10sr_gpio               GPIO Controller
>>
>>
>> This should be just "gpio" BTW.
>
>
> I reason I preprend a10sr_ is to distinguish this GPIO from the other GPIOs
> when binding to our LEDs (see below). I think the LEDs need a unique node
> name (unless I'm not understanding something).

You are confusing DTS labels and node names. Labels are global and
just convenience for the DTS source only instead of using full paths
(and can be anything you want). The node name is local to the level it
is at.

> A less important reason I use a10sr_gpio on the node name is that I can cat
> the /sys/class/gpio/gpioxxx/label and see that it is associated with the
> a10sr instead of one of our other general GPIOs. Is there a better way to
> distinguish these?

label should come from the label property I think. This is one of the
problems with the GPIO sysfs interface and why it is being replaced
with the char dev interface.

Rob

>
>>
>>> +a10sr_monitor            Register and State Monitoring
>>
>>
>> s/_/-/ or maybe just "monitor". Not really a generic node name to use
>> for this.
>>
>
> The reason I use _ for the node name is that the DTC fails if I reference a
> node name with "-" but works OK for "_". For instance, I get an error if the
> LEDs reference "a10sr-gpio" but "a10sr_gpio" compiles ok.

Again, I'm talking node names. You are talking labels. And yes, DTS
labels can't use '-'.

Rob

Re: [PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Rob Herring]

On Mon, Oct 31, 2016 at 10:28 AM, Thor Thayer
<tthayer@opensource.altera.com> wrote:
> Hi Rob,
>
> On 10/31/2016 12:36 AM, Rob Herring wrote:
>>
>> On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer@opensource.altera.com
>> wrote:
>>>
>>> From: Thor Thayer <tthayer@opensource.altera.com>
>>>
>>> Add the Arria10 DevKit System Resource Chip register and state
>>> monitoring module to the MFD.
>>>
>>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>>> ---
>>> Note: This needs to be applied to the bindings document that
>>> was Acked & Applied but didn't reach the for-next branch.
>>> See https://patchwork.ozlabs.org/patch/629397/
>>> ---
>>> v2  Change compatible string -mon to -monitor for clarity
>>> ---
>>>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>>>  1 file changed, 9 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> index ea151f2..c47be28 100644
>>> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>>>  Device                   Description
>>>  ------                   ----------
>>>  a10sr_gpio               GPIO Controller
>>
>>
>> This should be just "gpio" BTW.
>
>
> I reason I preprend a10sr_ is to distinguish this GPIO from the other GPIOs
> when binding to our LEDs (see below). I think the LEDs need a unique node
> name (unless I'm not understanding something).

You are confusing DTS labels and node names. Labels are global and
just convenience for the DTS source only instead of using full paths
(and can be anything you want). The node name is local to the level it
is at.

> A less important reason I use a10sr_gpio on the node name is that I can cat
> the /sys/class/gpio/gpioxxx/label and see that it is associated with the
> a10sr instead of one of our other general GPIOs. Is there a better way to
> distinguish these?

label should come from the label property I think. This is one of the
problems with the GPIO sysfs interface and why it is being replaced
with the char dev interface.

Rob

>
>>
>>> +a10sr_monitor            Register and State Monitoring
>>
>>
>> s/_/-/ or maybe just "monitor". Not really a generic node name to use
>> for this.
>>
>
> The reason I use _ for the node name is that the DTC fails if I reference a
> node name with "-" but works OK for "_". For instance, I get an error if the
> LEDs reference "a10sr-gpio" but "a10sr_gpio" compiles ok.

Again, I'm talking node names. You are talking labels. And yes, DTS
labels can't use '-'.

Rob

[PATCHv2 1/4] dt-bindings: mfd: Add Altera Arria10 SR Monitor

[Rob Herring]

On Mon, Oct 31, 2016 at 10:28 AM, Thor Thayer
<tthayer@opensource.altera.com> wrote:
> Hi Rob,
>
> On 10/31/2016 12:36 AM, Rob Herring wrote:
>>
>> On Thu, Oct 27, 2016 at 03:00:23PM -0500, tthayer at opensource.altera.com
>> wrote:
>>>
>>> From: Thor Thayer <tthayer@opensource.altera.com>
>>>
>>> Add the Arria10 DevKit System Resource Chip register and state
>>> monitoring module to the MFD.
>>>
>>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>>> ---
>>> Note: This needs to be applied to the bindings document that
>>> was Acked & Applied but didn't reach the for-next branch.
>>> See https://patchwork.ozlabs.org/patch/629397/
>>> ---
>>> v2  Change compatible string -mon to -monitor for clarity
>>> ---
>>>  Documentation/devicetree/bindings/mfd/altera-a10sr.txt | 9 +++++++++
>>>  1 file changed, 9 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> index ea151f2..c47be28 100644
>>> --- a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
>>> @@ -18,6 +18,7 @@ The A10SR consists of these sub-devices:
>>>  Device                   Description
>>>  ------                   ----------
>>>  a10sr_gpio               GPIO Controller
>>
>>
>> This should be just "gpio" BTW.
>
>
> I reason I preprend a10sr_ is to distinguish this GPIO from the other GPIOs
> when binding to our LEDs (see below). I think the LEDs need a unique node
> name (unless I'm not understanding something).

You are confusing DTS labels and node names. Labels are global and
just convenience for the DTS source only instead of using full paths
(and can be anything you want). The node name is local to the level it
is at.

> A less important reason I use a10sr_gpio on the node name is that I can cat
> the /sys/class/gpio/gpioxxx/label and see that it is associated with the
> a10sr instead of one of our other general GPIOs. Is there a better way to
> distinguish these?

label should come from the label property I think. This is one of the
problems with the GPIO sysfs interface and why it is being replaced
with the char dev interface.

Rob

>
>>
>>> +a10sr_monitor            Register and State Monitoring
>>
>>
>> s/_/-/ or maybe just "monitor". Not really a generic node name to use
>> for this.
>>
>
> The reason I use _ for the node name is that the DTC fails if I reference a
> node name with "-" but works OK for "_". For instance, I get an error if the
> LEDs reference "a10sr-gpio" but "a10sr_gpio" compiles ok.

Again, I'm talking node names. You are talking labels. And yes, DTS
labels can't use '-'.

Rob

Re: [PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Thor Thayer]

Hi Lee,

On 10/31/2016 03:02 AM, Lee Jones wrote:
> On Thu, 27 Oct 2016, tthayer@opensource.altera.com wrote:
>
>> From: Thor Thayer <tthayer@opensource.altera.com>
>>
>> Add the Altera Arria10 DevKit System Resource Monitor functionality
>> to the MFD device.
>>
>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>> ---
>> v2  Change from -mon to -monitor for clarity
>> ---
>>  drivers/mfd/altera-a10sr.c | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
>> index 06e1f7f..30de652 100644
>> --- a/drivers/mfd/altera-a10sr.c
>> +++ b/drivers/mfd/altera-a10sr.c
>> @@ -33,6 +33,10 @@
>>  		.name = "altr_a10sr_gpio",
>>  		.of_compatible = "altr,a10sr-gpio",
>>  	},
>> +	{
>> +		.name = "altr_a10sr_monitor",
>> +		.of_compatible = "altr,a10sr-monitor",
>
> So long as you use whichever compatible you agree on with Rob:
>
> For my own reference:
>   Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
>
I'm getting a "Non-standard signature" warning for this (even if I make 
everything lower-case).

Would you prefer I submit it with the warning or should I change it to 
"Acked-by"?

Thanks for reviewing!

Thor

>> +	},
>>  };
>>
>>  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
>

Re: [PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Thor Thayer]

Hi Lee,

On 10/31/2016 03:02 AM, Lee Jones wrote:
> On Thu, 27 Oct 2016, tthayer@opensource.altera.com wrote:
>
>> From: Thor Thayer <tthayer@opensource.altera.com>
>>
>> Add the Altera Arria10 DevKit System Resource Monitor functionality
>> to the MFD device.
>>
>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>> ---
>> v2  Change from -mon to -monitor for clarity
>> ---
>>  drivers/mfd/altera-a10sr.c | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
>> index 06e1f7f..30de652 100644
>> --- a/drivers/mfd/altera-a10sr.c
>> +++ b/drivers/mfd/altera-a10sr.c
>> @@ -33,6 +33,10 @@
>>  		.name = "altr_a10sr_gpio",
>>  		.of_compatible = "altr,a10sr-gpio",
>>  	},
>> +	{
>> +		.name = "altr_a10sr_monitor",
>> +		.of_compatible = "altr,a10sr-monitor",
>
> So long as you use whichever compatible you agree on with Rob:
>
> For my own reference:
>   Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
>
I'm getting a "Non-standard signature" warning for this (even if I make 
everything lower-case).

Would you prefer I submit it with the warning or should I change it to 
"Acked-by"?

Thanks for reviewing!

Thor

>> +	},
>>  };
>>
>>  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
>

[PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Thor Thayer]

Hi Lee,

On 10/31/2016 03:02 AM, Lee Jones wrote:
> On Thu, 27 Oct 2016, tthayer at opensource.altera.com wrote:
>
>> From: Thor Thayer <tthayer@opensource.altera.com>
>>
>> Add the Altera Arria10 DevKit System Resource Monitor functionality
>> to the MFD device.
>>
>> Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
>> ---
>> v2  Change from -mon to -monitor for clarity
>> ---
>>  drivers/mfd/altera-a10sr.c | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
>> index 06e1f7f..30de652 100644
>> --- a/drivers/mfd/altera-a10sr.c
>> +++ b/drivers/mfd/altera-a10sr.c
>> @@ -33,6 +33,10 @@
>>  		.name = "altr_a10sr_gpio",
>>  		.of_compatible = "altr,a10sr-gpio",
>>  	},
>> +	{
>> +		.name = "altr_a10sr_monitor",
>> +		.of_compatible = "altr,a10sr-monitor",
>
> So long as you use whichever compatible you agree on with Rob:
>
> For my own reference:
>   Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
>
I'm getting a "Non-standard signature" warning for this (even if I make 
everything lower-case).

Would you prefer I submit it with the warning or should I change it to 
"Acked-by"?

Thanks for reviewing!

Thor

>> +	},
>>  };
>>
>>  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
>

Re: [PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Lee Jones]

On Mon, 31 Oct 2016, Thor Thayer wrote:
> On 10/31/2016 03:02 AM, Lee Jones wrote:
> > On Thu, 27 Oct 2016, tthayer@opensource.altera.com wrote:
> > 
> > > From: Thor Thayer <tthayer@opensource.altera.com>
> > > 
> > > Add the Altera Arria10 DevKit System Resource Monitor functionality
> > > to the MFD device.
> > > 
> > > Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
> > > ---
> > > v2  Change from -mon to -monitor for clarity
> > > ---
> > >  drivers/mfd/altera-a10sr.c | 4 ++++
> > >  1 file changed, 4 insertions(+)
> > > 
> > > diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
> > > index 06e1f7f..30de652 100644
> > > --- a/drivers/mfd/altera-a10sr.c
> > > +++ b/drivers/mfd/altera-a10sr.c
> > > @@ -33,6 +33,10 @@
> > >  		.name = "altr_a10sr_gpio",
> > >  		.of_compatible = "altr,a10sr-gpio",
> > >  	},
> > > +	{
> > > +		.name = "altr_a10sr_monitor",
> > > +		.of_compatible = "altr,a10sr-monitor",
> > 
> > So long as you use whichever compatible you agree on with Rob:
> > 
> > For my own reference:
> >   Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
> > 
> I'm getting a "Non-standard signature" warning for this (even if I make
> everything lower-case).
> 
> Would you prefer I submit it with the warning or should I change it to
> "Acked-by"?

Please submit it as you see it.  I will amend when applying.

> Thanks for reviewing!
> 
> Thor
> 
> > > +	},
> > >  };
> > > 
> > >  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
> > 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

Re: [PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Lee Jones]

On Mon, 31 Oct 2016, Thor Thayer wrote:
> On 10/31/2016 03:02 AM, Lee Jones wrote:
> > On Thu, 27 Oct 2016, tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org wrote:
> > 
> > > From: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
> > > 
> > > Add the Altera Arria10 DevKit System Resource Monitor functionality
> > > to the MFD device.
> > > 
> > > Signed-off-by: Thor Thayer <tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
> > > ---
> > > v2  Change from -mon to -monitor for clarity
> > > ---
> > >  drivers/mfd/altera-a10sr.c | 4 ++++
> > >  1 file changed, 4 insertions(+)
> > > 
> > > diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
> > > index 06e1f7f..30de652 100644
> > > --- a/drivers/mfd/altera-a10sr.c
> > > +++ b/drivers/mfd/altera-a10sr.c
> > > @@ -33,6 +33,10 @@
> > >  		.name = "altr_a10sr_gpio",
> > >  		.of_compatible = "altr,a10sr-gpio",
> > >  	},
> > > +	{
> > > +		.name = "altr_a10sr_monitor",
> > > +		.of_compatible = "altr,a10sr-monitor",
> > 
> > So long as you use whichever compatible you agree on with Rob:
> > 
> > For my own reference:
> >   Acked-for-MFD-by: Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> > 
> I'm getting a "Non-standard signature" warning for this (even if I make
> everything lower-case).
> 
> Would you prefer I submit it with the warning or should I change it to
> "Acked-by"?

Please submit it as you see it.  I will amend when applying.

> Thanks for reviewing!
> 
> Thor
> 
> > > +	},
> > >  };
> > > 
> > >  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
> > 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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[PATCHv2 3/4] mfd: altr-a10sr: Add Arria10 SR Monitor

[Lee Jones]

On Mon, 31 Oct 2016, Thor Thayer wrote:
> On 10/31/2016 03:02 AM, Lee Jones wrote:
> > On Thu, 27 Oct 2016, tthayer at opensource.altera.com wrote:
> > 
> > > From: Thor Thayer <tthayer@opensource.altera.com>
> > > 
> > > Add the Altera Arria10 DevKit System Resource Monitor functionality
> > > to the MFD device.
> > > 
> > > Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
> > > ---
> > > v2  Change from -mon to -monitor for clarity
> > > ---
> > >  drivers/mfd/altera-a10sr.c | 4 ++++
> > >  1 file changed, 4 insertions(+)
> > > 
> > > diff --git a/drivers/mfd/altera-a10sr.c b/drivers/mfd/altera-a10sr.c
> > > index 06e1f7f..30de652 100644
> > > --- a/drivers/mfd/altera-a10sr.c
> > > +++ b/drivers/mfd/altera-a10sr.c
> > > @@ -33,6 +33,10 @@
> > >  		.name = "altr_a10sr_gpio",
> > >  		.of_compatible = "altr,a10sr-gpio",
> > >  	},
> > > +	{
> > > +		.name = "altr_a10sr_monitor",
> > > +		.of_compatible = "altr,a10sr-monitor",
> > 
> > So long as you use whichever compatible you agree on with Rob:
> > 
> > For my own reference:
> >   Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
> > 
> I'm getting a "Non-standard signature" warning for this (even if I make
> everything lower-case).
> 
> Would you prefer I submit it with the warning or should I change it to
> "Acked-by"?

Please submit it as you see it.  I will amend when applying.

> Thanks for reviewing!
> 
> Thor
> 
> > > +	},
> > >  };
> > > 
> > >  static bool altr_a10sr_reg_readable(struct device *dev, unsigned int reg)
> > 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org ? Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog