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* [PATCH v4 0/3] USB host: Add USB ehci support for nuvoton npcm7xx
@ 2018-06-07 14:58 avifishman70
  2018-06-07 14:58 ` [PATCH v4 1/3] USB host: Add USB ehci support for nuvoton npcm7xx platform avifishman70
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: avifishman70 @ 2018-06-07 14:58 UTC (permalink / raw)
  To: gregkh, stern
  Cc: avifishman70, tmaimon77, venture, yuenn, brendanhiggins,
	mathias.nyman, bjorn.andersson, jhogan, albeu, chunfeng.yun,
	tony, baolu.lu, elder, digetx, kstewart, hdegoede, linux-kernel,
	linux-usb, openbmc, robh+dt, mark.rutland, devicetree,
	Avi Fishman

From: Avi Fishman <AviFishman70@gmail.com>

Changes since version 3:
- Follow Rob Herring comments to change dt-bindings commit subject

Changes since version 2:
- Follow Sergei Shtylyov comments to rename the node name in in device tree 
  documentation

Changes since version 1:
- Follow Rob Herring comments in device tree documentation
- minor log error fix in ehci-npcm7xx.c
   
This patch adds support for ehci controller for the Nuvoton npcm7xx platform.
Most of the code was taken from ehci-spear.c + specific initialization code

Avi Fishman (3):
  USB host: Add USB ehci support for nuvoton npcm7xx platform
  dt-bindings: usb: new ehci-npcm7xx dt
  MAINTAINERS: add subfolders for nuvoton *npcm*

 .../devicetree/bindings/usb/npcm7xx-usb.txt        |  17 ++
 MAINTAINERS                                        |   3 +
 drivers/usb/host/Kconfig                           |   8 +
 drivers/usb/host/Makefile                          |   1 +
 drivers/usb/host/ehci-npcm7xx.c                    | 212 +++++++++++++++++++++
 5 files changed, 241 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
 create mode 100644 drivers/usb/host/ehci-npcm7xx.c

-- 
2.14.1

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [PATCH v4 1/3] USB host: Add USB ehci support for nuvoton npcm7xx platform
  2018-06-07 14:58 [PATCH v4 0/3] USB host: Add USB ehci support for nuvoton npcm7xx avifishman70
@ 2018-06-07 14:58 ` avifishman70
  2018-06-07 14:58 ` [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt avifishman70
  2018-06-07 14:58 ` [PATCH v4 3/3] MAINTAINERS: add subfolders for nuvoton *npcm* avifishman70
  2 siblings, 0 replies; 7+ messages in thread
From: avifishman70 @ 2018-06-07 14:58 UTC (permalink / raw)
  To: gregkh, stern
  Cc: avifishman70, tmaimon77, venture, yuenn, brendanhiggins,
	mathias.nyman, bjorn.andersson, jhogan, albeu, chunfeng.yun,
	tony, baolu.lu, elder, digetx, kstewart, hdegoede, linux-kernel,
	linux-usb, openbmc, robh+dt, mark.rutland, devicetree,
	Avi Fishman

From: Avi Fishman <AviFishman70@gmail.com>

This patch adds support for ehci controller for the Nuvoton
npcm7xx platform.
Most of the code was taken from ehci-spear.c + specific initialization
code

Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
---
 drivers/usb/host/Kconfig        |   8 ++
 drivers/usb/host/Makefile       |   1 +
 drivers/usb/host/ehci-npcm7xx.c | 212 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 221 insertions(+)
 create mode 100644 drivers/usb/host/ehci-npcm7xx.c

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 9f0aeb068acb..e3100b249f0f 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -185,6 +185,14 @@ config USB_EHCI_MXC
 	---help---
 	  Variation of ARC USB block used in some Freescale chips.
 
+config USB_EHCI_HCD_NPCM7XX
+	tristate "Support for Nuvoton NPCM7XX on-chip EHCI USB controller"
+	depends on (USB_EHCI_HCD && ARCH_NPCM7XX) || COMPILE_TEST
+	default y
+	help
+	  Enables support for the on-chip EHCI controller on
+	  Nuvoton NPCM7XX chips.
+
 config USB_EHCI_HCD_OMAP
 	tristate "EHCI support for OMAP3 and later chips"
 	depends on ARCH_OMAP
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 8a8cffe0b445..fcf5dab5efa4 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_USB_EHCI_HCD)	+= ehci-hcd.o
 obj-$(CONFIG_USB_EHCI_PCI)	+= ehci-pci.o
 obj-$(CONFIG_USB_EHCI_HCD_PLATFORM)	+= ehci-platform.o
 obj-$(CONFIG_USB_EHCI_MXC)	+= ehci-mxc.o
+obj-$(CONFIG_USB_EHCI_HCD_NPCM7XX)	+= ehci-npcm7xx.o
 obj-$(CONFIG_USB_EHCI_HCD_OMAP)	+= ehci-omap.o
 obj-$(CONFIG_USB_EHCI_HCD_ORION)	+= ehci-orion.o
 obj-$(CONFIG_USB_EHCI_HCD_SPEAR)	+= ehci-spear.o
diff --git a/drivers/usb/host/ehci-npcm7xx.c b/drivers/usb/host/ehci-npcm7xx.c
new file mode 100644
index 000000000000..c80a8792d3b0
--- /dev/null
+++ b/drivers/usb/host/ehci-npcm7xx.c
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Nuvoton NPCM7xx driver for EHCI HCD
+ *
+ * Copyright (C) 2018 Nuvoton Technologies,
+ * Avi Fishman <avi.fishman@nuvoton.com> <avifishman70@gmail.com>
+ * Tomer Maimon <tomer.maimon@nuvoton.com> <tmaimon77@gmail.com>
+ *
+ * Based on various ehci-spear.c driver
+ */
+
+
+#include <linux/dma-mapping.h>
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ehci.h"
+
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+
+#define DRIVER_DESC "EHCI npcm7xx driver"
+
+static const char hcd_name[] = "npcm7xx-ehci";
+
+#define  USB2PHYCTL_OFFSET 0x144
+
+#define  IPSRST2_OFFSET 0x24
+#define  IPSRST3_OFFSET 0x34
+
+
+static struct hc_driver __read_mostly ehci_npcm7xx_hc_driver;
+
+#ifdef CONFIG_PM_SLEEP
+static int ehci_npcm7xx_drv_suspend(struct device *dev)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	bool do_wakeup = device_may_wakeup(dev);
+
+	return ehci_suspend(hcd, do_wakeup);
+}
+
+static int ehci_npcm7xx_drv_resume(struct device *dev)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+
+	ehci_resume(hcd, false);
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(ehci_npcm7xx_pm_ops, ehci_npcm7xx_drv_suspend,
+		ehci_npcm7xx_drv_resume);
+
+static int npcm7xx_ehci_hcd_drv_probe(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd;
+	struct resource *res;
+	struct regmap *gcr_regmap;
+	struct regmap *rst_regmap;
+	const struct hc_driver *driver = &ehci_npcm7xx_hc_driver;
+	int irq;
+	int retval;
+
+	dev_dbg(&pdev->dev,	"initializing npcm7xx ehci USB Controller\n");
+
+	gcr_regmap = syscon_regmap_lookup_by_compatible("nuvoton,npcm750-gcr");
+	if (IS_ERR(gcr_regmap)) {
+		dev_err(&pdev->dev, "%s: failed to find nuvoton,npcm750-gcr\n",
+			__func__);
+		return IS_ERR(gcr_regmap);
+	}
+
+	rst_regmap = syscon_regmap_lookup_by_compatible("nuvoton,npcm750-rst");
+	if (IS_ERR(rst_regmap)) {
+		dev_err(&pdev->dev, "%s: failed to find nuvoton,npcm750-rst\n",
+			__func__);
+		return IS_ERR(rst_regmap);
+	}
+
+	/********* phy init  ******/
+	// reset usb host
+	regmap_update_bits(rst_regmap, IPSRST2_OFFSET,
+			(0x1 << 26), (0x1 << 26));
+	regmap_update_bits(rst_regmap, IPSRST3_OFFSET,
+			(0x1 << 25), (0x1 << 25));
+	regmap_update_bits(gcr_regmap, USB2PHYCTL_OFFSET,
+			(0x1 << 28), 0);
+
+	udelay(1);
+
+	// enable phy
+	regmap_update_bits(rst_regmap, IPSRST3_OFFSET,
+			(0x1 << 25), 0);
+
+	udelay(50); // enable phy
+
+	regmap_update_bits(gcr_regmap, USB2PHYCTL_OFFSET,
+			(0x1 << 28), (0x1 << 28));
+
+	// enable host
+	regmap_update_bits(rst_regmap, IPSRST2_OFFSET,
+			(0x1 << 26), 0);
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		retval = irq;
+		goto fail;
+	}
+
+	/*
+	 * Right now device-tree probed devices don't get dma_mask set.
+	 * Since shared usb code relies on it, set it here for now.
+	 * Once we have dma capability bindings this can go away.
+	 */
+	retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (retval)
+		goto fail;
+
+	hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
+	if (!hcd) {
+		retval = -ENOMEM;
+		goto fail;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(hcd->regs)) {
+		retval = PTR_ERR(hcd->regs);
+		goto err_put_hcd;
+	}
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
+
+	/* registers start at offset 0x0 */
+	hcd_to_ehci(hcd)->caps = hcd->regs;
+
+	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
+	if (retval)
+		goto err_put_hcd;
+
+	device_wakeup_enable(hcd->self.controller);
+	return retval;
+
+err_put_hcd:
+	usb_put_hcd(hcd);
+fail:
+	dev_err(&pdev->dev, "init fail, %d\n", retval);
+
+	return retval;
+}
+
+static int npcm7xx_ehci_hcd_drv_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_remove_hcd(hcd);
+
+	usb_put_hcd(hcd);
+
+	return 0;
+}
+
+static const struct of_device_id npcm7xx_ehci_id_table[] = {
+	{ .compatible = "nuvoton,npcm750-ehci" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, npcm7xx_ehci_id_table);
+
+static struct platform_driver npcm7xx_ehci_hcd_driver = {
+	.probe		= npcm7xx_ehci_hcd_drv_probe,
+	.remove		= npcm7xx_ehci_hcd_drv_remove,
+	.shutdown	= usb_hcd_platform_shutdown,
+	.driver		= {
+		.name = "npcm7xx-ehci",
+		.bus = &platform_bus_type,
+		.pm = &ehci_npcm7xx_pm_ops,
+		.of_match_table = npcm7xx_ehci_id_table,
+	}
+};
+
+static int __init ehci_npcm7xx_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ehci_init_driver(&ehci_npcm7xx_hc_driver, NULL);
+	return platform_driver_register(&npcm7xx_ehci_hcd_driver);
+}
+module_init(ehci_npcm7xx_init);
+
+static void __exit ehci_npcm7xx_cleanup(void)
+{
+	platform_driver_unregister(&npcm7xx_ehci_hcd_driver);
+}
+module_exit(ehci_npcm7xx_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_ALIAS("platform:npcm7xx-ehci");
+MODULE_AUTHOR("Avi Fishman");
+MODULE_LICENSE("GPL v2");
-- 
2.14.1

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt
  2018-06-07 14:58 [PATCH v4 0/3] USB host: Add USB ehci support for nuvoton npcm7xx avifishman70
  2018-06-07 14:58 ` [PATCH v4 1/3] USB host: Add USB ehci support for nuvoton npcm7xx platform avifishman70
@ 2018-06-07 14:58 ` avifishman70
  2018-06-11 18:16   ` Rob Herring
  2018-06-07 14:58 ` [PATCH v4 3/3] MAINTAINERS: add subfolders for nuvoton *npcm* avifishman70
  2 siblings, 1 reply; 7+ messages in thread
From: avifishman70 @ 2018-06-07 14:58 UTC (permalink / raw)
  To: gregkh, stern
  Cc: avifishman70, tmaimon77, venture, yuenn, brendanhiggins,
	mathias.nyman, bjorn.andersson, jhogan, albeu, chunfeng.yun,
	tony, baolu.lu, elder, digetx, kstewart, hdegoede, linux-kernel,
	linux-usb, openbmc, robh+dt, mark.rutland, devicetree,
	Avi Fishman

From: Avi Fishman <AviFishman70@gmail.com>

Device Tree documentation for Nuvoton npcm7xx EHCI.

Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
---
 Documentation/devicetree/bindings/usb/npcm7xx-usb.txt | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/npcm7xx-usb.txt

diff --git a/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt b/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
new file mode 100644
index 000000000000..b682bec103f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
@@ -0,0 +1,17 @@
+Nuvoton NPCM7XX SoC USB controllers:
+-----------------------------
+
+EHCI:
+-----
+
+Required properties:
+- compatible: "nuvoton,npcm750-ehci"
+- interrupts: Should contain the EHCI interrupt
+
+Example:
+
+	ehci1: usb@f0806000 {
+		compatible = "nuvoton,npcm750-ehci";
+		reg = <0xf0806000 0x1000>;
+		interrupts = <0 61 4>;
+	};
-- 
2.14.1

^ permalink raw reply	[flat|nested] 7+ messages in thread

* [PATCH v4 3/3] MAINTAINERS: add subfolders for nuvoton *npcm*
  2018-06-07 14:58 [PATCH v4 0/3] USB host: Add USB ehci support for nuvoton npcm7xx avifishman70
  2018-06-07 14:58 ` [PATCH v4 1/3] USB host: Add USB ehci support for nuvoton npcm7xx platform avifishman70
  2018-06-07 14:58 ` [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt avifishman70
@ 2018-06-07 14:58 ` avifishman70
  2 siblings, 0 replies; 7+ messages in thread
From: avifishman70 @ 2018-06-07 14:58 UTC (permalink / raw)
  To: gregkh, stern
  Cc: avifishman70, tmaimon77, venture, yuenn, brendanhiggins,
	mathias.nyman, bjorn.andersson, jhogan, albeu, chunfeng.yun,
	tony, baolu.lu, elder, digetx, kstewart, hdegoede, linux-kernel,
	linux-usb, openbmc, robh+dt, mark.rutland, devicetree,
	Avi Fishman

From: Avi Fishman <AviFishman70@gmail.com>

Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
---
 MAINTAINERS | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e0ce3c5f32e5..23c450adad44 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1727,7 +1727,10 @@ F:	arch/arm/mach-npcm/
 F:	arch/arm/boot/dts/nuvoton-npcm*
 F:	include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
 F:	drivers/*/*npcm*
+F:	drivers/*/*/*npcm*
 F:	Documentation/*/*npcm*
+F:	Documentation/*/*/*npcm*
+F:	Documentation/*/*/*/*npcm*
 
 ARM/NUVOTON W90X900 ARM ARCHITECTURE
 M:	Wan ZongShun <mcuos.com@gmail.com>
-- 
2.14.1

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt
  2018-06-07 14:58 ` [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt avifishman70
@ 2018-06-11 18:16   ` Rob Herring
  2018-06-11 18:24     ` Avi Fishman
  0 siblings, 1 reply; 7+ messages in thread
From: Rob Herring @ 2018-06-11 18:16 UTC (permalink / raw)
  To: avifishman70
  Cc: gregkh, stern, tmaimon77, venture, yuenn, brendanhiggins,
	mathias.nyman, bjorn.andersson, jhogan, albeu, chunfeng.yun,
	tony, baolu.lu, elder, digetx, kstewart, hdegoede, linux-kernel,
	linux-usb, openbmc, mark.rutland, devicetree

On Thu, Jun 07, 2018 at 05:58:20PM +0300, avifishman70@gmail.com wrote:
> From: Avi Fishman <AviFishman70@gmail.com>
> 
> Device Tree documentation for Nuvoton npcm7xx EHCI.
> 
> Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
> ---
>  Documentation/devicetree/bindings/usb/npcm7xx-usb.txt | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/npcm7xx-usb.txt

Please add acks/reviewed-bys when posting new versions.

Rob

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt
  2018-06-11 18:16   ` Rob Herring
@ 2018-06-11 18:24     ` Avi Fishman
  2018-06-11 18:55       ` Rob Herring
  0 siblings, 1 reply; 7+ messages in thread
From: Avi Fishman @ 2018-06-11 18:24 UTC (permalink / raw)
  To: Rob Herring
  Cc: Greg Kroah-Hartman, Alan Stern, Tomer Maimon, Patrick Venture,
	Nancy Yuen, Brendan Higgins, mathias.nyman, bjorn.andersson,
	jhogan, albeu, chunfeng.yun, Tony Lindgren, baolu.lu, Alex Elder,
	Dmitry Osipenko, Kate Stewart, hdegoede,
	Linux Kernel Mailing List, linux-usb, OpenBMC Maillist,
	Mark Rutland, devicetree

On Mon, Jun 11, 2018 at 9:16 PM, Rob Herring <robh@kernel.org> wrote:
> On Thu, Jun 07, 2018 at 05:58:20PM +0300, avifishman70@gmail.com wrote:
>> From: Avi Fishman <AviFishman70@gmail.com>
>>
>> Device Tree documentation for Nuvoton npcm7xx EHCI.
>>
>> Signed-off-by: Avi Fishman <AviFishman70@gmail.com>

Reviewed-by: Rob Herring <robh@kernel.org>
Rob, if I understand you want me to add another version (v5) with the
above line (only on the dt)?

>> ---
>>  Documentation/devicetree/bindings/usb/npcm7xx-usb.txt | 17 +++++++++++++++++
>>  1 file changed, 17 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
>
> Please add acks/reviewed-bys when posting new versions.
>
> Rob

^ permalink raw reply	[flat|nested] 7+ messages in thread

* Re: [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt
  2018-06-11 18:24     ` Avi Fishman
@ 2018-06-11 18:55       ` Rob Herring
  0 siblings, 0 replies; 7+ messages in thread
From: Rob Herring @ 2018-06-11 18:55 UTC (permalink / raw)
  To: Avi Fishman
  Cc: Greg Kroah-Hartman, Alan Stern, Tomer Maimon, Patrick Venture,
	Nancy Yuen, Brendan Higgins, Mathias Nyman, Bjorn Andersson,
	James Hogan, Alban, Chunfeng Yun, Tony Lindgren, baolu.lu,
	Alex Elder, Dmitry Osipenko, Kate Stewart, Hans de Goede,
	Linux Kernel Mailing List, Linux USB List, OpenBMC Maillist,
	Mark Rutland, devicetree

On Mon, Jun 11, 2018 at 12:24 PM, Avi Fishman <avifishman70@gmail.com> wrote:
> On Mon, Jun 11, 2018 at 9:16 PM, Rob Herring <robh@kernel.org> wrote:
>> On Thu, Jun 07, 2018 at 05:58:20PM +0300, avifishman70@gmail.com wrote:
>>> From: Avi Fishman <AviFishman70@gmail.com>
>>>
>>> Device Tree documentation for Nuvoton npcm7xx EHCI.
>>>
>>> Signed-off-by: Avi Fishman <AviFishman70@gmail.com>
>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Rob, if I understand you want me to add another version (v5) with the
> above line (only on the dt)?

No need to *only* do that. Maintainers will collect them on the last
version when they apply patches. You just can't expect that
maintainers will go look at prior versions and collect them.

>>> ---
>>>  Documentation/devicetree/bindings/usb/npcm7xx-usb.txt | 17 +++++++++++++++++
>>>  1 file changed, 17 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
>>
>> Please add acks/reviewed-bys when posting new versions.
>>
>> Rob

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2018-06-11 18:56 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-06-07 14:58 [PATCH v4 0/3] USB host: Add USB ehci support for nuvoton npcm7xx avifishman70
2018-06-07 14:58 ` [PATCH v4 1/3] USB host: Add USB ehci support for nuvoton npcm7xx platform avifishman70
2018-06-07 14:58 ` [PATCH v4 2/3] dt-bindings: usb: new ehci-npcm7xx dt avifishman70
2018-06-11 18:16   ` Rob Herring
2018-06-11 18:24     ` Avi Fishman
2018-06-11 18:55       ` Rob Herring
2018-06-07 14:58 ` [PATCH v4 3/3] MAINTAINERS: add subfolders for nuvoton *npcm* avifishman70

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