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core/linux-armv7-rc to 4.19.rc8-1

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This commit is contained in:
Kevin Mihelich 2018-10-16 00:26:35 +00:00
parent bee763efd1
commit 9cb13c8e30
16 changed files with 39 additions and 1213 deletions
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4
core/linux-armv7-rc/0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
View file

@ -1,7 +1,7 @@
From 3fe3d31dfe86c2c36fe3dbf318b62c17dad74979 Mon Sep 17 00:00:00 2001
From 311f37a47e903b459dabc396494ac1621fb2d78b Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@xxxxxx>
Date: Sun, 2 Dec 2012 19:59:28 +0100
Subject: [PATCH 01/14] ARM: atags: add support for Marvell's u-boot
Subject: [PATCH 1/9] ARM: atags: add support for Marvell's u-boot
Marvell uses a specific atag in its u-boot which includes among other
information the MAC addresses for up to 4 network interfaces.

6
core/linux-armv7-rc/0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
View file

@ -1,8 +1,8 @@
From 0318a0c7a4f28fea65ece490b8e5ab999ea28cf0 Mon Sep 17 00:00:00 2001
From 978d7f01eacdb7af7d87dc4c6811b9ff7f19f5cd Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@xxxxxx>
Date: Sun, 2 Dec 2012 19:56:58 +0100
Subject: [PATCH 02/14] ARM: atags/fdt: retrieve MAC addresses from Marvell
boot loader
Subject: [PATCH 2/9] ARM: atags/fdt: retrieve MAC addresses from Marvell boot
loader
The atags are parsed and if a Marvell atag is found, up to 4 MAC
addresses are extracted there and assigned to node aliases eth0..3

4
core/linux-armv7-rc/0003-SMILE-Plug-device-tree-file.patch
View file

@ -1,7 +1,7 @@
From aeb39caae840357c6f8746f7b357db39e289dfb0 Mon Sep 17 00:00:00 2001
From 96a2824045c5dff3c3ccb5e01813f5ec6372bde0 Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Fri, 5 Sep 2014 15:41:19 -0600
Subject: [PATCH 03/14] SMILE Plug device tree file
Subject: [PATCH 3/9] SMILE Plug device tree file
This adds a dts file for the SMILE Plug, which only differs from the Mirabox
dts with the LED definitions.

4
core/linux-armv7-rc/0004-fix-mvsdio-eMMC-timing.patch
View file

@ -1,7 +1,7 @@
From 91fb157f637a63b837bb561de7c5e8e82a0742b7 Mon Sep 17 00:00:00 2001
From 43be8213a90dae909f838dedbc5e8a1e82b9572d Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Fri, 5 Sep 2014 15:43:56 -0600
Subject: [PATCH 04/14] fix mvsdio eMMC timing
Subject: [PATCH 4/9] fix mvsdio eMMC timing
These changes from Globalscale change the MMC timing to allow the eMMC versions
of the Mirabox and SMILE Plug to work.

9
core/linux-armv7-rc/0005-net-smsc95xx-Allow-mac-address-to-be-set-as-a-parame.patch
View file

@ -1,15 +1,14 @@
From 7b672000c60cd27290cf40aa35465c36ddac377e Mon Sep 17 00:00:00 2001
From 6e0372c8fec9db69e88a19c3a70a4c3a730fd743 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Tue, 18 Feb 2014 01:43:50 -0300
Subject: [PATCH 05/14] net/smsc95xx: Allow mac address to be set as a
parameter
Subject: [PATCH 5/9] net/smsc95xx: Allow mac address to be set as a parameter
---
drivers/net/usb/smsc95xx.c | 56 ++++++++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 06b4d290784d..3be3b5a4a176 100644
index 262e7a3c23cb..c2b3c5b6e1f3 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -60,6 +60,7 @@
@ -31,7 +30,7 @@ index 06b4d290784d..3be3b5a4a176 100644
static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
u32 *data, int in_pm)
{
@@ -910,8 +915,59 @@ static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
@@ -913,8 +918,59 @@ static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
}

4
core/linux-armv7-rc/0006-set-default-cubietruck-led-triggers.patch
View file

@ -1,7 +1,7 @@
From 9554ee43557caf3307c4d02363edad337b57183b Mon Sep 17 00:00:00 2001
From b22d8cc1d2763b4abbc6587dff148be3be683ac0 Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Sat, 14 Feb 2015 12:32:27 +0100
Subject: [PATCH 06/14] set default cubietruck led triggers
Subject: [PATCH 6/9] set default cubietruck led triggers
Signed-off-by: Kevin Mihelich <kevin@archlinuxarm.org>
---

4
core/linux-armv7-rc/0007-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch
View file

@ -1,7 +1,7 @@
From f25e2b18b4773c9419f2308d16e8d119384ac3cf Mon Sep 17 00:00:00 2001
From eaea91920f1836c32a5cdb09eb7054af16b88a27 Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Thu, 11 Aug 2016 00:42:37 -0600
Subject: [PATCH 07/14] exynos4412-odroid: set higher minimum buck2 regulator
Subject: [PATCH 7/9] exynos4412-odroid: set higher minimum buck2 regulator
voltage
Set a higher minimum voltage to help reboot issue.

4
core/linux-armv7-rc/0008-ARM-dove-enable-ethernet-on-D3Plug.patch
View file

@ -1,7 +1,7 @@
From e1ab434c1ed6331c1bf91060053a48929bfb2f63 Mon Sep 17 00:00:00 2001
From a3aab9208da801924ba6211998b31571ed564fcd Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Sun, 7 May 2017 13:32:25 -0600
Subject: [PATCH 08/14] ARM: dove: enable ethernet on D3Plug
Subject: [PATCH 8/9] ARM: dove: enable ethernet on D3Plug
Signed-off-by: Kevin Mihelich <kevin@archlinuxarm.org>
---

790
core/linux-armv7-rc/0009-power-add-power-sequence-library.patch
View file

@ -1,790 +0,0 @@
From 95b35165973f831017aad76240a29f9e3cc7bedd Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@nxp.com>
Date: Wed, 21 Jun 2017 14:42:03 +0800
Subject: [PATCH 09/14] power: add power sequence library
We have an well-known problem that the device needs to do some power
sequence before it can be recognized by related host, the typical
example like hard-wired mmc devices and usb devices.
This power sequence is hard to be described at device tree and handled by
related host driver, so we have created a common power sequence
library to cover this requirement. The core code has supplied
some common helpers for host driver, and individual power sequence
libraries handle kinds of power sequence for devices. The pwrseq
librares always need to allocate extra instance for compatible
string match.
pwrseq_generic is intended for general purpose of power sequence, which
handles gpios and clocks currently, and can cover other controls in
future. The host driver just needs to call of_pwrseq_on/of_pwrseq_off
if only one power sequence is needed, else call of_pwrseq_on_list
/of_pwrseq_off_list instead (eg, USB hub driver).
For new power sequence library, it needs to add its compatible string
and allocation function at pwrseq_match_table_list, then the pwrseq
core will match it with DT's, and choose this library at runtime.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Tested-by Joshua Clayton <stillcompiling@gmail.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
---
Documentation/power/power-sequence/design.rst | 54 ++++
MAINTAINERS | 9 +
drivers/power/Kconfig | 1 +
drivers/power/Makefile | 1 +
drivers/power/pwrseq/Kconfig | 20 ++
drivers/power/pwrseq/Makefile | 2 +
drivers/power/pwrseq/core.c | 293 ++++++++++++++++++
drivers/power/pwrseq/pwrseq_generic.c | 210 +++++++++++++
include/linux/power/pwrseq.h | 84 +++++
9 files changed, 674 insertions(+)
create mode 100644 Documentation/power/power-sequence/design.rst
create mode 100644 drivers/power/pwrseq/Kconfig
create mode 100644 drivers/power/pwrseq/Makefile
create mode 100644 drivers/power/pwrseq/core.c
create mode 100644 drivers/power/pwrseq/pwrseq_generic.c
create mode 100644 include/linux/power/pwrseq.h
diff --git a/Documentation/power/power-sequence/design.rst b/Documentation/power/power-sequence/design.rst
new file mode 100644
index 000000000000..554608e5f3b6
--- /dev/null
+++ b/Documentation/power/power-sequence/design.rst
@@ -0,0 +1,54 @@
+====================================
+Power Sequence Library
+====================================
+
+:Date: Feb, 2017
+:Author: Peter Chen <peter.chen@nxp.com>
+
+
+Introduction
+============
+
+We have an well-known problem that the device needs to do a power
+sequence before it can be recognized by related host, the typical
+examples are hard-wired mmc devices and usb devices. The host controller
+can't know what kinds of this device is in its bus if the power
+sequence has not done, since the related devices driver's probe calling
+is determined by runtime according to eunumeration results. Besides,
+the devices may have custom power sequence, so the power sequence library
+which is independent with the devices is needed.
+
+Design
+============
+
+The power sequence library includes the core file and customer power
+sequence library. The core file exports interfaces are called by
+host controller driver for power sequence and customer power sequence
+library files to register its power sequence instance to global
+power sequence list. The custom power sequence library creates power
+sequence instance and implement custom power sequence.
+
+Since the power sequence describes hardware design, the description is
+located at board description file, eg, device tree dts file. And
+a specific power sequence belongs to device, so its description
+is under the device node, please refer to:
+Documentation/devicetree/bindings/power/pwrseq/pwrseq-generic.txt
+
+Custom power sequence library allocates one power sequence instance at
+bootup periods using postcore_initcall, this static allocated instance is
+used to compare with device-tree (DT) node to see if this library can be
+used for the node or not. When the result is matched, the core API will
+try to get resourses (->get, implemented at each library) for power
+sequence, if all resources are got, it will try to allocate another
+instance for next possible request from host driver.
+
+Then, the host controller driver can carry out power sequence on for this
+DT node, the library will do corresponding operations, like open clocks,
+toggle gpio, etc. The power sequence off routine will close and free the
+resources, and is called when the parent is removed. And the power
+sequence suspend and resume routine can be called at host driver's
+suspend and resume routine if needed.
+
+The exported interfaces
+.. kernel-doc:: drivers/power/pwrseq/core.c
+ :export:
diff --git a/MAINTAINERS b/MAINTAINERS
index 02a39617ec82..5b42de98ef9d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11622,6 +11622,15 @@ F: drivers/firmware/psci*.c
F: include/linux/psci.h
F: include/uapi/linux/psci.h
+POWER SEQUENCE LIBRARY
+M: Peter Chen <Peter.Chen@nxp.com>
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git
+L: linux-pm@vger.kernel.org
+S: Maintained
+F: Documentation/devicetree/bindings/power/pwrseq/
+F: drivers/power/pwrseq/
+F: include/linux/power/pwrseq.h
+
POWER SUPPLY CLASS/SUBSYSTEM and DRIVERS
M: Sebastian Reichel <sre@kernel.org>
L: linux-pm@vger.kernel.org
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 63454b5cac27..c1bb0465f956 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -1,3 +1,4 @@
source "drivers/power/avs/Kconfig"
source "drivers/power/reset/Kconfig"
source "drivers/power/supply/Kconfig"
+source "drivers/power/pwrseq/Kconfig"
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index ff35c712d824..7db80354b691 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -1,3 +1,4 @@
obj-$(CONFIG_POWER_AVS) += avs/
obj-$(CONFIG_POWER_RESET) += reset/
obj-$(CONFIG_POWER_SUPPLY) += supply/
+obj-$(CONFIG_POWER_SEQUENCE) += pwrseq/
diff --git a/drivers/power/pwrseq/Kconfig b/drivers/power/pwrseq/Kconfig
new file mode 100644
index 000000000000..c6b356926cca
--- /dev/null
+++ b/drivers/power/pwrseq/Kconfig
@@ -0,0 +1,20 @@
+#
+# Power Sequence library
+#
+
+menuconfig POWER_SEQUENCE
+ bool "Power sequence control"
+ help
+ It is used for drivers which needs to do power sequence
+ (eg, turn on clock, toggle reset gpio) before the related
+ devices can be found by hardware, eg, USB bus.
+
+if POWER_SEQUENCE
+
+config PWRSEQ_GENERIC
+ bool "Generic power sequence control"
+ depends on OF
+ help
+ This is the generic power sequence control library, and is
+ supposed to support common power sequence usage.
+endif
diff --git a/drivers/power/pwrseq/Makefile b/drivers/power/pwrseq/Makefile
new file mode 100644
index 000000000000..ad82389028c2
--- /dev/null
+++ b/drivers/power/pwrseq/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_POWER_SEQUENCE) += core.o
+obj-$(CONFIG_PWRSEQ_GENERIC) += pwrseq_generic.o
diff --git a/drivers/power/pwrseq/core.c b/drivers/power/pwrseq/core.c
new file mode 100644
index 000000000000..6b78a6691683
--- /dev/null
+++ b/drivers/power/pwrseq/core.c
@@ -0,0 +1,293 @@
+/*
+ * core.c power sequence core file
+ *
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Author: Peter Chen <peter.chen@nxp.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that 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.
+ */
+
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/power/pwrseq.h>
+
+/*
+ * Static power sequence match table
+ * - Add compatible (the same with dts node) and related allocation function.
+ * - Update related binding doc.
+ */
+static const struct of_device_id pwrseq_match_table_list[] = {
+ { .compatible = "usb424,2513", .data = &pwrseq_generic_alloc_instance},
+ { .compatible = "usb424,2514", .data = &pwrseq_generic_alloc_instance},
+ { /* sentinel */ }
+};
+
+static int pwrseq_get(struct device_node *np, struct pwrseq *p)
+{
+ if (p && p->get)
+ return p->get(np, p);
+
+ return -ENOTSUPP;
+}
+
+static int pwrseq_on(struct pwrseq *p)
+{
+ if (p && p->on)
+ return p->on(p);
+
+ return -ENOTSUPP;
+}
+
+static void pwrseq_off(struct pwrseq *p)
+{
+ if (p && p->off)
+ p->off(p);
+}
+
+static void pwrseq_put(struct pwrseq *p)
+{
+ if (p && p->put)
+ p->put(p);
+}
+
+/**
+ * of_pwrseq_on - Carry out power sequence on for device node
+ *
+ * @np: the device node would like to power on
+ *
+ * Carry out a single device power on. If multiple devices
+ * need to be handled, use of_pwrseq_on_list() instead.
+ *
+ * Return a pointer to the power sequence instance on success, or NULL if
+ * not exist, or an error code on failure.
+ */
+struct pwrseq *of_pwrseq_on(struct device_node *np)
+{
+ struct pwrseq *pwrseq;
+ int ret;
+ const struct of_device_id *of_id;
+ struct pwrseq *(*alloc_instance)(void);
+
+ of_id = of_match_node(pwrseq_match_table_list, np);
+ if (!of_id)
+ return NULL;
+
+ alloc_instance = of_id->data;
+ /* Allocate pwrseq instance */
+ pwrseq = alloc_instance();
+ if (IS_ERR(pwrseq))
+ return pwrseq;
+
+ ret = pwrseq_get(np, pwrseq);
+ if (ret)
+ goto pwr_put;
+
+ ret = pwrseq_on(pwrseq);
+ if (ret)
+ goto pwr_put;
+
+ return pwrseq;
+
+pwr_put:
+ pwrseq_put(pwrseq);
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(of_pwrseq_on);
+
+/**
+ * of_pwrseq_off - Carry out power sequence off for this pwrseq instance
+ *
+ * @pwrseq: the pwrseq instance which related device would like to be off
+ *
+ * This API is used to power off single device, it is the opposite
+ * operation for of_pwrseq_on.
+ */
+void of_pwrseq_off(struct pwrseq *pwrseq)
+{
+ pwrseq_off(pwrseq);
+ pwrseq_put(pwrseq);
+}
+EXPORT_SYMBOL_GPL(of_pwrseq_off);
+
+/**
+ * of_pwrseq_on_list - Carry out power sequence on for list
+ *
+ * @np: the device node would like to power on
+ * @head: the list head for pwrseq list on this bus
+ *
+ * This API is used to power on multiple devices at single bus.
+ * If there are several devices on bus (eg, USB bus), uses this
+ * this API. Otherwise, use of_pwrseq_on instead. After the device
+ * is powered on successfully, it will be added to pwrseq list for
+ * this bus. The caller needs to use mutex_lock for concurrent.
+ *
+ * Return 0 on success, or -ENOENT if not exist, or an error value on failure.
+ */
+int of_pwrseq_on_list(struct device_node *np, struct list_head *head)
+{
+ struct pwrseq *pwrseq;
+ struct pwrseq_list_per_dev *pwrseq_list_node;
+
+ pwrseq_list_node = kzalloc(sizeof(*pwrseq_list_node), GFP_KERNEL);
+ if (!pwrseq_list_node)
+ return -ENOMEM;
+
+ pwrseq = of_pwrseq_on(np);
+ if (!pwrseq)
+ return -ENOENT;
+
+ if (IS_ERR(pwrseq)) {
+ kfree(pwrseq_list_node);
+ return PTR_ERR(pwrseq);
+ }
+
+ pwrseq_list_node->pwrseq = pwrseq;
+ list_add(&pwrseq_list_node->list, head);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(of_pwrseq_on_list);
+
+/**
+ * of_pwrseq_off_list - Carry out power sequence off for the list
+ *
+ * @head: the list head for pwrseq instance list on this bus
+ *
+ * This API is used to power off all devices on this bus, it is
+ * the opposite operation for of_pwrseq_on_list.
+ * The caller needs to use mutex_lock for concurrent.
+ */
+void of_pwrseq_off_list(struct list_head *head)
+{
+ struct pwrseq *pwrseq;
+ struct pwrseq_list_per_dev *pwrseq_list_node, *tmp_node;
+
+ list_for_each_entry_safe(pwrseq_list_node, tmp_node, head, list) {
+ pwrseq = pwrseq_list_node->pwrseq;
+ of_pwrseq_off(pwrseq);
+ list_del(&pwrseq_list_node->list);
+ kfree(pwrseq_list_node);
+ }
+}
+EXPORT_SYMBOL_GPL(of_pwrseq_off_list);
+
+/**
+ * pwrseq_suspend - Carry out power sequence suspend for this pwrseq instance
+ *
+ * @pwrseq: the pwrseq instance
+ *
+ * This API is used to do suspend operation on pwrseq instance.
+ *
+ * Return 0 on success, or an error value otherwise.
+ */
+int pwrseq_suspend(struct pwrseq *p)
+{
+ int ret = 0;
+
+ if (p && p->suspend)
+ ret = p->suspend(p);
+ else
+ return ret;
+
+ if (!ret)
+ p->suspended = true;
+ else
+ pr_err("%s failed\n", __func__);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pwrseq_suspend);
+
+/**
+ * pwrseq_resume - Carry out power sequence resume for this pwrseq instance
+ *
+ * @pwrseq: the pwrseq instance
+ *
+ * This API is used to do resume operation on pwrseq instance.
+ *
+ * Return 0 on success, or an error value otherwise.
+ */
+int pwrseq_resume(struct pwrseq *p)
+{
+ int ret = 0;
+
+ if (p && p->resume)
+ ret = p->resume(p);
+ else
+ return ret;
+
+ if (!ret)
+ p->suspended = false;
+ else
+ pr_err("%s failed\n", __func__);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pwrseq_resume);
+
+/**
+ * pwrseq_suspend_list - Carry out power sequence suspend for list
+ *
+ * @head: the list head for pwrseq instance list on this bus
+ *
+ * This API is used to do suspend on all power sequence instances on this bus.
+ * The caller needs to use mutex_lock for concurrent.
+ */
+int pwrseq_suspend_list(struct list_head *head)
+{
+ struct pwrseq *pwrseq;
+ struct pwrseq_list_per_dev *pwrseq_list_node;
+ int ret = 0;
+
+ list_for_each_entry(pwrseq_list_node, head, list) {
+ ret = pwrseq_suspend(pwrseq_list_node->pwrseq);
+ if (ret)
+ break;
+ }
+
+ if (ret) {
+ list_for_each_entry(pwrseq_list_node, head, list) {
+ pwrseq = pwrseq_list_node->pwrseq;
+ if (pwrseq->suspended)
+ pwrseq_resume(pwrseq);
+ }
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pwrseq_suspend_list);
+
+/**
+ * pwrseq_resume_list - Carry out power sequence resume for the list
+ *
+ * @head: the list head for pwrseq instance list on this bus
+ *
+ * This API is used to do resume on all power sequence instances on this bus.
+ * The caller needs to use mutex_lock for concurrent.
+ */
+int pwrseq_resume_list(struct list_head *head)
+{
+ struct pwrseq_list_per_dev *pwrseq_list_node;
+ int ret = 0;
+
+ list_for_each_entry(pwrseq_list_node, head, list) {
+ ret = pwrseq_resume(pwrseq_list_node->pwrseq);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pwrseq_resume_list);
diff --git a/drivers/power/pwrseq/pwrseq_generic.c b/drivers/power/pwrseq/pwrseq_generic.c
new file mode 100644
index 000000000000..b7bbd6c5b47d
--- /dev/null
+++ b/drivers/power/pwrseq/pwrseq_generic.c
@@ -0,0 +1,210 @@
+/*
+ * pwrseq_generic.c Generic power sequence handling
+ *
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ * Author: Peter Chen <peter.chen@nxp.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that 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.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/slab.h>
+
+#include <linux/power/pwrseq.h>
+
+struct pwrseq_generic {
+ struct pwrseq pwrseq;
+ struct gpio_desc *gpiod_reset;
+ struct clk *clks[PWRSEQ_MAX_CLKS];
+ u32 duration_us;
+ bool suspended;
+};
+
+#define to_generic_pwrseq(p) container_of(p, struct pwrseq_generic, pwrseq)
+
+static int pwrseq_generic_suspend(struct pwrseq *pwrseq)
+{
+ struct pwrseq_generic *pwrseq_gen = to_generic_pwrseq(pwrseq);
+ int clk;
+
+ for (clk = PWRSEQ_MAX_CLKS - 1; clk >= 0; clk--)
+ clk_disable_unprepare(pwrseq_gen->clks[clk]);
+
+ pwrseq_gen->suspended = true;
+ return 0;
+}
+
+static int pwrseq_generic_resume(struct pwrseq *pwrseq)
+{
+ struct pwrseq_generic *pwrseq_gen = to_generic_pwrseq(pwrseq);
+ int clk, ret = 0;
+
+ for (clk = 0; clk < PWRSEQ_MAX_CLKS && pwrseq_gen->clks[clk]; clk++) {
+ ret = clk_prepare_enable(pwrseq_gen->clks[clk]);
+ if (ret) {
+ pr_err("Can't enable clock, ret=%d\n", ret);
+ goto err_disable_clks;
+ }
+ }
+
+ pwrseq_gen->suspended = false;
+ return ret;
+
+err_disable_clks:
+ while (--clk >= 0)
+ clk_disable_unprepare(pwrseq_gen->clks[clk]);
+
+ return ret;
+}
+
+static void pwrseq_generic_put(struct pwrseq *pwrseq)
+{
+ struct pwrseq_generic *pwrseq_gen = to_generic_pwrseq(pwrseq);
+ int clk;
+
+ if (pwrseq_gen->gpiod_reset)
+ gpiod_put(pwrseq_gen->gpiod_reset);
+
+ for (clk = 0; clk < PWRSEQ_MAX_CLKS; clk++)
+ clk_put(pwrseq_gen->clks[clk]);
+
+ kfree(pwrseq_gen);
+}
+
+static void pwrseq_generic_off(struct pwrseq *pwrseq)
+{
+ struct pwrseq_generic *pwrseq_gen = to_generic_pwrseq(pwrseq);
+ int clk;
+
+ if (pwrseq_gen->suspended)
+ return;
+
+ for (clk = PWRSEQ_MAX_CLKS - 1; clk >= 0; clk--)
+ clk_disable_unprepare(pwrseq_gen->clks[clk]);
+}
+
+static int pwrseq_generic_on(struct pwrseq *pwrseq)
+{
+ struct pwrseq_generic *pwrseq_gen = to_generic_pwrseq(pwrseq);
+ int clk, ret = 0;
+ struct gpio_desc *gpiod_reset = pwrseq_gen->gpiod_reset;
+
+ for (clk = 0; clk < PWRSEQ_MAX_CLKS && pwrseq_gen->clks[clk]; clk++) {
+ ret = clk_prepare_enable(pwrseq_gen->clks[clk]);
+ if (ret) {
+ pr_err("Can't enable clock, ret=%d\n", ret);
+ goto err_disable_clks;
+ }
+ }
+
+ if (gpiod_reset) {
+ u32 duration_us = pwrseq_gen->duration_us;
+
+ if (duration_us <= 10)
+ udelay(10);
+ else
+ usleep_range(duration_us, duration_us + 100);
+ gpiod_set_value(gpiod_reset, 0);
+ }
+
+ return ret;
+
+err_disable_clks:
+ while (--clk >= 0)
+ clk_disable_unprepare(pwrseq_gen->clks[clk]);
+
+ return ret;
+}
+
+static int pwrseq_generic_get(struct device_node *np, struct pwrseq *pwrseq)
+{
+ struct pwrseq_generic *pwrseq_gen = to_generic_pwrseq(pwrseq);
+ enum of_gpio_flags flags;
+ int reset_gpio, clk, ret = 0;
+
+ for (clk = 0; clk < PWRSEQ_MAX_CLKS; clk++) {
+ pwrseq_gen->clks[clk] = of_clk_get(np, clk);
+ if (IS_ERR(pwrseq_gen->clks[clk])) {
+ ret = PTR_ERR(pwrseq_gen->clks[clk]);
+ if (ret != -ENOENT)
+ goto err_put_clks;
+ pwrseq_gen->clks[clk] = NULL;
+ break;
+ }
+ }
+
+ reset_gpio = of_get_named_gpio_flags(np, "reset-gpios", 0, &flags);
+ if (gpio_is_valid(reset_gpio)) {
+ unsigned long gpio_flags;
+
+ if (flags & OF_GPIO_ACTIVE_LOW)
+ gpio_flags = GPIOF_ACTIVE_LOW | GPIOF_OUT_INIT_LOW;
+ else
+ gpio_flags = GPIOF_OUT_INIT_HIGH;
+
+ ret = gpio_request_one(reset_gpio, gpio_flags,
+ "pwrseq-reset-gpios");
+ if (ret)
+ goto err_put_clks;
+
+ pwrseq_gen->gpiod_reset = gpio_to_desc(reset_gpio);
+ of_property_read_u32(np, "reset-duration-us",
+ &pwrseq_gen->duration_us);
+ } else if (reset_gpio == -ENOENT) {
+ ; /* no such gpio */
+ } else {
+ ret = reset_gpio;
+ pr_err("Failed to get reset gpio on %s, err = %d\n",
+ np->full_name, reset_gpio);
+ goto err_put_clks;
+ }
+
+ return 0;
+
+err_put_clks:
+ while (--clk >= 0)
+ clk_put(pwrseq_gen->clks[clk]);
+ return ret;
+}
+
+/**
+ * pwrseq_generic_alloc_instance - power sequence instance allocation
+ *
+ * This function is used to allocate one generic power sequence instance,
+ * it is called when the system boots up and after one power sequence
+ * instance is got successfully.
+ *
+ * Return zero on success or an error code otherwise.
+ */
+struct pwrseq *pwrseq_generic_alloc_instance(void)
+{
+ struct pwrseq_generic *pwrseq_gen;
+
+ pwrseq_gen = kzalloc(sizeof(*pwrseq_gen), GFP_KERNEL);
+ if (!pwrseq_gen)
+ return ERR_PTR(-ENOMEM);
+
+ pwrseq_gen->pwrseq.get = pwrseq_generic_get;
+ pwrseq_gen->pwrseq.on = pwrseq_generic_on;
+ pwrseq_gen->pwrseq.off = pwrseq_generic_off;
+ pwrseq_gen->pwrseq.put = pwrseq_generic_put;
+ pwrseq_gen->pwrseq.suspend = pwrseq_generic_suspend;
+ pwrseq_gen->pwrseq.resume = pwrseq_generic_resume;
+
+ return &pwrseq_gen->pwrseq;
+}
diff --git a/include/linux/power/pwrseq.h b/include/linux/power/pwrseq.h
new file mode 100644
index 000000000000..c5b278f5f2ae
--- /dev/null
+++ b/include/linux/power/pwrseq.h
@@ -0,0 +1,84 @@
+#ifndef __LINUX_PWRSEQ_H
+#define __LINUX_PWRSEQ_H
+
+#include <linux/of.h>
+
+#define PWRSEQ_MAX_CLKS 3
+
+/**
+ * struct pwrseq - the power sequence structure
+ * @pwrseq_of_match_table: the OF device id table this pwrseq library supports
+ * @node: the list pointer to be added to pwrseq list
+ * @get: the API is used to get pwrseq instance from the device node
+ * @on: do power on for this pwrseq instance
+ * @off: do power off for this pwrseq instance
+ * @put: release the resources on this pwrseq instance
+ * @suspend: do suspend operation on this pwrseq instance
+ * @resume: do resume operation on this pwrseq instance
+ */
+struct pwrseq {
+ const struct of_device_id *pwrseq_of_match_table;
+ struct list_head node;
+ int (*get)(struct device_node *np, struct pwrseq *p);
+ int (*on)(struct pwrseq *p);
+ void (*off)(struct pwrseq *p);
+ void (*put)(struct pwrseq *p);
+ int (*suspend)(struct pwrseq *p);
+ int (*resume)(struct pwrseq *p);
+ bool suspended;
+};
+
+/* used for power sequence instance list in one driver */
+struct pwrseq_list_per_dev {
+ struct pwrseq *pwrseq;
+ struct list_head list;
+};
+
+#if IS_ENABLED(CONFIG_POWER_SEQUENCE)
+struct pwrseq *of_pwrseq_on(struct device_node *np);
+void of_pwrseq_off(struct pwrseq *pwrseq);
+int of_pwrseq_on_list(struct device_node *np, struct list_head *head);
+void of_pwrseq_off_list(struct list_head *head);
+int pwrseq_suspend(struct pwrseq *p);
+int pwrseq_resume(struct pwrseq *p);
+int pwrseq_suspend_list(struct list_head *head);
+int pwrseq_resume_list(struct list_head *head);
+#else
+static inline struct pwrseq *of_pwrseq_on(struct device_node *np)
+{
+ return NULL;
+}
+static void of_pwrseq_off(struct pwrseq *pwrseq) {}
+static int of_pwrseq_on_list(struct device_node *np, struct list_head *head)
+{
+ return 0;
+}
+static void of_pwrseq_off_list(struct list_head *head) {}
+static int pwrseq_suspend(struct pwrseq *p)
+{
+ return 0;
+}
+static int pwrseq_resume(struct pwrseq *p)
+{
+ return 0;
+}
+static int pwrseq_suspend_list(struct list_head *head)
+{
+ return 0;
+}
+static int pwrseq_resume_list(struct list_head *head)
+{
+ return 0;
+}
+#endif /* CONFIG_POWER_SEQUENCE */
+
+#if IS_ENABLED(CONFIG_PWRSEQ_GENERIC)
+extern struct pwrseq *pwrseq_generic_alloc_instance(void);
+#else
+static inline struct pwrseq *pwrseq_generic_alloc_instance(void)
+{
+ return ERR_PTR(-ENOTSUPP);
+}
+#endif /* CONFIG_PWRSEQ_GENERIC */
+
+#endif /* __LINUX_PWRSEQ_H */
--
2.19.0

4
core/linux-armv7-rc/0014-usb-dwc2-disable-power_down-on-rockchip-devices.patch → core/linux-armv7-rc/0009-usb-dwc2-disable-power_down-on-rockchip-devices.patch
View file

@ -1,7 +1,7 @@
From b3da2b98cf8ebab28279669f5cfab83b505b918f Mon Sep 17 00:00:00 2001
From 3379ffad8f5b3db47578cc4eadc3c0f22f7547f1 Mon Sep 17 00:00:00 2001
From: Hal Emmerich <hal@halemmerich.com>
Date: Thu, 19 Jul 2018 21:48:08 -0500
Subject: [PATCH 14/14] usb: dwc2: disable power_down on rockchip devices
Subject: [PATCH 9/9] usb: dwc2: disable power_down on rockchip devices
The bug would let the usb controller enter partial power down,
which was formally known as hibernate, upon boot if nothing was plugged

166
core/linux-armv7-rc/0010-usb-core-add-power-sequence-handling-for-USB-devices.patch
View file

@ -1,166 +0,0 @@
From cdc5187421ccf419dc0effb8dbaffb6eb1964174 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@nxp.com>
Date: Wed, 21 Jun 2017 14:42:05 +0800
Subject: [PATCH 10/14] usb: core: add power sequence handling for USB devices
Some hard-wired USB devices need to do power sequence to let the
device work normally, the typical power sequence like: enable USB
PHY clock, toggle reset pin, etc. But current Linux USB driver
lacks of such code to do it, it may cause some hard-wired USB devices
works abnormal or can't be recognized by controller at all.
In this patch, it calls power sequence library APIs to finish
the power sequence events. It will do power on sequence at hub's
probe for all devices under this hub (includes root hub).
At hub_disconnect, it will do power off sequence which is at powered
on list.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Tested-by Joshua Clayton <stillcompiling@gmail.com>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Vaibhav Hiremath <hvaibhav.linux@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
---
drivers/usb/Kconfig | 1 +
drivers/usb/core/hub.c | 49 ++++++++++++++++++++++++++++++++++++++----
drivers/usb/core/hub.h | 1 +
3 files changed, 47 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 987fc5ba6321..bd09fc8ff763 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -45,6 +45,7 @@ config USB
tristate "Support for Host-side USB"
depends on USB_ARCH_HAS_HCD
select USB_COMMON
+ select POWER_SEQUENCE
select NLS # for UTF-8 strings
---help---
Universal Serial Bus (USB) is a specification for a serial bus
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 462ce49f683a..8e5b2ef9c2ab 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -28,6 +28,7 @@
#include <linux/mutex.h>
#include <linux/random.h>
#include <linux/pm_qos.h>
+#include <linux/power/pwrseq.h>
#include <linux/uaccess.h>
#include <asm/byteorder.h>
@@ -1658,6 +1659,7 @@ static void hub_disconnect(struct usb_interface *intf)
hub->error = 0;
hub_quiesce(hub, HUB_DISCONNECT);
+ of_pwrseq_off_list(&hub->pwrseq_list);
mutex_lock(&usb_port_peer_mutex);
/* Avoid races with recursively_mark_NOTATTACHED() */
@@ -1704,11 +1706,41 @@ static bool hub_descriptor_is_sane(struct usb_host_interface *desc)
return true;
}
+#ifdef CONFIG_OF
+static int hub_of_pwrseq_on(struct usb_hub *hub)
+{
+ struct device *parent;
+ struct usb_device *hdev = hub->hdev;
+ struct device_node *np;
+ int ret;
+
+ if (hdev->parent)
+ parent = &hdev->dev;
+ else
+ parent = bus_to_hcd(hdev->bus)->self.sysdev;
+
+ for_each_child_of_node(parent->of_node, np) {
+ ret = of_pwrseq_on_list(np, &hub->pwrseq_list);
+ /* Maybe no power sequence library is chosen */
+ if (ret && ret != -ENOENT)
+ return ret;
+ }
+
+ return 0;
+}
+#else
+static int hub_of_pwrseq_on(struct usb_hub *hub)
+{
+ return 0;
+}
+#endif
+
static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct usb_host_interface *desc;
struct usb_device *hdev;
struct usb_hub *hub;
+ int ret = -ENODEV;
desc = intf->cur_altsetting;
hdev = interface_to_usbdev(intf);
@@ -1799,6 +1831,7 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id)
INIT_DELAYED_WORK(&hub->leds, led_work);
INIT_DELAYED_WORK(&hub->init_work, NULL);
INIT_WORK(&hub->events, hub_event);
+ INIT_LIST_HEAD(&hub->pwrseq_list);
usb_get_intf(intf);
usb_get_dev(hdev);
@@ -1812,11 +1845,14 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (id->driver_info & HUB_QUIRK_CHECK_PORT_AUTOSUSPEND)
hub->quirk_check_port_auto_suspend = 1;
- if (hub_configure(hub, &desc->endpoint[0].desc) >= 0)
- return 0;
+ if (hub_configure(hub, &desc->endpoint[0].desc) >= 0) {
+ ret = hub_of_pwrseq_on(hub);
+ if (!ret)
+ return 0;
+ }
hub_disconnect(intf);
- return -ENODEV;
+ return ret;
}
static int
@@ -3657,7 +3693,7 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg)
/* stop hub_wq and related activity */
hub_quiesce(hub, HUB_SUSPEND);
- return 0;
+ return pwrseq_suspend_list(&hub->pwrseq_list);
}
/* Report wakeup requests from the ports of a resuming root hub */
@@ -3697,8 +3733,13 @@ static void report_wakeup_requests(struct usb_hub *hub)
static int hub_resume(struct usb_interface *intf)
{
struct usb_hub *hub = usb_get_intfdata(intf);
+ int ret;
dev_dbg(&intf->dev, "%s\n", __func__);
+ ret = pwrseq_resume_list(&hub->pwrseq_list);
+ if (ret)
+ return ret;
+
hub_activate(hub, HUB_RESUME);
/*
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
index 4accfb63f7dc..abe71c5e84cb 100644
--- a/drivers/usb/core/hub.h
+++ b/drivers/usb/core/hub.h
@@ -70,6 +70,7 @@ struct usb_hub {
struct delayed_work init_work;
struct work_struct events;
struct usb_port **ports;
+ struct list_head pwrseq_list; /* powered pwrseq node list */
};
/**
--
2.19.0

49
core/linux-armv7-rc/0011-ARM-dts-imx6qdl-Enable-usb-node-children-with-reg.patch
View file

@ -1,49 +0,0 @@
From 94f4eacc527eb42f8601680b98ff5ee82eaa31e5 Mon Sep 17 00:00:00 2001
From: Joshua Clayton <stillcompiling@gmail.com>
Date: Wed, 21 Jun 2017 14:42:06 +0800
Subject: [PATCH 11/14] ARM: dts: imx6qdl: Enable usb node children with <reg>
Give usb nodes #address and #size attributes, so that a child node
representing a permanently connected device such as an onboard hub may
be addressed with a <reg> attribute
Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
arch/arm/boot/dts/imx6qdl.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 61d2d26afbf4..bb67b1e6bc91 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -964,6 +964,8 @@
usbh1: usb@2184200 {
compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
+ #address-cells = <1>;
+ #size-cells = <0>;
reg = <0x02184200 0x200>;
interrupts = <0 40 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6QDL_CLK_USBOH3>;
@@ -978,6 +980,8 @@
usbh2: usb@2184400 {
compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
+ #address-cells = <1>;
+ #size-cells = <0>;
reg = <0x02184400 0x200>;
interrupts = <0 41 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6QDL_CLK_USBOH3>;
@@ -991,6 +995,8 @@
usbh3: usb@2184600 {
compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
+ #address-cells = <1>;
+ #size-cells = <0>;
reg = <0x02184600 0x200>;
interrupts = <0 42 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6QDL_CLK_USBOH3>;
--
2.19.0

80
core/linux-armv7-rc/0012-ARM-dts-imx6qdl-udoo.dtsi-fix-onboard-USB-HUB-proper.patch
View file

@ -1,80 +0,0 @@
From 19ac8e8f7c88d8e622f7eb6195b82bf3dd5c4558 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@nxp.com>
Date: Wed, 21 Jun 2017 14:42:07 +0800
Subject: [PATCH 12/14] ARM: dts: imx6qdl-udoo.dtsi: fix onboard USB HUB
property
The current dts describes USB HUB's property at USB controller's
entry, it is improper. The USB HUB should be the child node
under USB controller, and power sequence properties are under
it. Besides, using gpio pinctrl setting for USB2415's reset pin.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
---
arch/arm/boot/dts/imx6qdl-udoo.dtsi | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)
diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
index 4f27861bbb32..dead14b0d4bf 100644
--- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
@@ -5,6 +5,8 @@
* Author: Fabio Estevam <fabio.estevam@freescale.com>
*/
+#include <dt-bindings/gpio/gpio.h>
+
/ {
aliases {
backlight = &backlight;
@@ -61,17 +63,6 @@
#address-cells = <1>;
#size-cells = <0>;
- reg_usb_h1_vbus: regulator@0 {
- compatible = "regulator-fixed";
- reg = <0>;
- regulator-name = "usb_h1_vbus";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- enable-active-high;
- startup-delay-us = <2>; /* USB2415 requires a POR of 1 us minimum */
- gpio = <&gpio7 12 0>;
- };
-
reg_panel: regulator@1 {
compatible = "regulator-fixed";
reg = <1>;
@@ -197,7 +188,7 @@
pinctrl_usbh: usbhgrp {
fsl,pins = <
- MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x80000000
+ MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b0
MX6QDL_PAD_NANDF_CS2__CCM_CLKO2 0x130b0
>;
};
@@ -268,9 +259,16 @@
&usbh1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usbh>;
- vbus-supply = <&reg_usb_h1_vbus>;
- clocks = <&clks IMX6QDL_CLK_CKO>;
status = "okay";
+
+ usb2415: hub@1 {
+ compatible = "usb424,2514";
+ reg = <1>;
+
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
+ reset-duration-us = <3000>;
+ };
};
&usdhc3 {
--
2.19.0

74
core/linux-armv7-rc/0013-ARM-dts-imx6q-evi-Fix-onboard-hub-reset-line.patch
View file

@ -1,74 +0,0 @@
From 1493af9612c94615a73c09a75f2bfaeabb2df0f0 Mon Sep 17 00:00:00 2001
From: Joshua Clayton <stillcompiling@gmail.com>
Date: Wed, 21 Jun 2017 14:42:08 +0800
Subject: [PATCH 13/14] ARM: dts: imx6q-evi: Fix onboard hub reset line
Previously the onboard hub was made to work by treating its
reset gpio as a regulator enable.
Get rid of that kludge now that pwseq has added reset gpio support
Move pin muxing the hub reset pin into the usbh1 group
Signed-off-by: Joshua Clayton <stillcompiling@gmail.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
arch/arm/boot/dts/imx6q-evi.dts | 25 +++++++------------------
1 file changed, 7 insertions(+), 18 deletions(-)
diff --git a/arch/arm/boot/dts/imx6q-evi.dts b/arch/arm/boot/dts/imx6q-evi.dts
index fcd257bc5ac3..d32fa81bba95 100644
--- a/arch/arm/boot/dts/imx6q-evi.dts
+++ b/arch/arm/boot/dts/imx6q-evi.dts
@@ -54,18 +54,6 @@
reg = <0x10000000 0x40000000>;
};
- reg_usbh1_vbus: regulator-usbhubreset {
- compatible = "regulator-fixed";
- regulator-name = "usbh1_vbus";
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- enable-active-high;
- startup-delay-us = <2>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_usbh1_hubreset>;
- gpio = <&gpio7 12 GPIO_ACTIVE_HIGH>;
- };
-
reg_usb_otg_vbus: regulator-usbotgvbus {
compatible = "regulator-fixed";
regulator-name = "usb_otg_vbus";
@@ -213,12 +201,18 @@
};
&usbh1 {
- vbus-supply = <&reg_usbh1_vbus>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usbh1>;
dr_mode = "host";
disable-over-current;
status = "okay";
+
+ usb2415host: hub@1 {
+ compatible = "usb424,2513";
+ reg = <1>;
+ reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
+ reset-duration-us = <3000>;
+ };
};
&usbotg {
@@ -481,11 +475,6 @@
MX6QDL_PAD_GPIO_3__USB_H1_OC 0x1b0b0
/* usbh1_b OC */
MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x1b0b0
- >;
- };
-
- pinctrl_usbh1_hubreset: usbh1hubresetgrp {
- fsl,pins = <
MX6QDL_PAD_GPIO_17__GPIO7_IO12 0x1b0b0
>;
};
--
2.19.0

47
core/linux-armv7-rc/PKGBUILD
View file

@ -4,8 +4,8 @@
buildarch=4
_rcver=4.19
_rcrel=7
_rcnrel=armv7-x2
_rcrel=8
_rcnrel=armv7-x3
pkgbase=linux-armv7-rc
_srcname=linux-${_rcver}-rc${_rcrel}
@ -28,35 +28,25 @@ source=("https://git.kernel.org/torvalds/t/${_srcname}.tar.gz"
'0006-set-default-cubietruck-led-triggers.patch'
'0007-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch'
'0008-ARM-dove-enable-ethernet-on-D3Plug.patch'
'0009-power-add-power-sequence-library.patch'
'0010-usb-core-add-power-sequence-handling-for-USB-devices.patch'
'0011-ARM-dts-imx6qdl-Enable-usb-node-children-with-reg.patch'
'0012-ARM-dts-imx6qdl-udoo.dtsi-fix-onboard-USB-HUB-proper.patch'
'0013-ARM-dts-imx6q-evi-Fix-onboard-hub-reset-line.patch'
'0014-usb-dwc2-disable-power_down-on-rockchip-devices.patch'
'0009-usb-dwc2-disable-power_down-on-rockchip-devices.patch'
'config'
'kernel.its'
'kernel.keyblock'
'kernel_data_key.vbprivk'
'linux.preset'
'99-linux.hook')
md5sums=('a6d92613da3eb7311eca5f69ecd0a48b'
'6b08d217c71928850fca0dbb87843089'
'b12466afb3d0b5265e4f3eb286197be7'
'256bbae12b94f732f69cca9297ff96de'
'3b1720b2334c4efb16e0da002734a00e'
'7ccb756e46aa9a61a2ffdf0549f0edc3'
'fcbf4fef50ca6cbd2b360a3603cde764'
'6f5d1259ca3c23ed24c8c23f7a9af93f'
'fc30a0f23a9f185baf3bd02cb55609b4'
'4169c9ea2f1f0511fd242df1021fadfc'
'2028de0c679e6926a311d6805d767824'
'f868d4a5d828f56e018a7c28256081bd'
'1d400b52890fb0d08911e4a4b25bfec5'
'18ebf11f2ad87660c62eea3c49258efa'
'c7652c4ef9ef6f5204cff75ee2304ad8'
'd90174a3bcbf777d907413b92b7ad1b6'
'a9c0199bff78f548106c24d270487519'
md5sums=('dc5afdb1a4325dbbc6c68e737ef2ec96'
'04a744be65c1040d763d14576f4ddcf0'
'acbef669729b6d1714eae635e3fc5cb0'
'592521ffbad728eb5b6bd6cbfb2f7483'
'b75039abcd5c8d040ff16b3f95586827'
'bc31bbe488f53e9978b21a5f7ac728cd'
'939c308aacf213b333c8dd10595d488c'
'4c71d7af72e76823cc983ded54312edb'
'08dc5f1eda02cffa65842b5610ba8cb8'
'07232ec1318aab8d53a16e3a99af50a7'
'579a311a4be75313e778c9b04fa95f52'
'ffb1c059a46ff358a072075dc87ed262'
'4f2379ed84258050edb858ee8d281678'
'61c5ff73c136ed07a7aadbf58db3d96a'
'584777ae88bce2c5659960151b64c7d8'
@ -79,12 +69,7 @@ prepare() {
git apply ../0006-set-default-cubietruck-led-triggers.patch
git apply ../0007-exynos4412-odroid-set-higher-minimum-buck2-regulator.patch
git apply ../0008-ARM-dove-enable-ethernet-on-D3Plug.patch
git apply ../0009-power-add-power-sequence-library.patch
git apply ../0010-usb-core-add-power-sequence-handling-for-USB-devices.patch
git apply ../0011-ARM-dts-imx6qdl-Enable-usb-node-children-with-reg.patch
git apply ../0012-ARM-dts-imx6qdl-udoo.dtsi-fix-onboard-USB-HUB-proper.patch
git apply ../0013-ARM-dts-imx6q-evi-Fix-onboard-hub-reset-line.patch
git apply ../0014-usb-dwc2-disable-power_down-on-rockchip-devices.patch
git apply ../0009-usb-dwc2-disable-power_down-on-rockchip-devices.patch
cat "${srcdir}/config" > ./.config

3
core/linux-armv7-rc/config
View file

@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 4.19.0-rc5-1 Kernel Configuration
# Linux/arm 4.19.0-rc8-1 Kernel Configuration
#
#
@ -2262,6 +2262,7 @@ CONFIG_SRAM_EXEC=y
CONFIG_VEXPRESS_SYSCFG=y
# CONFIG_PCI_ENDPOINT_TEST is not set
CONFIG_TIEQEP=m
# CONFIG_UDOO_ARD is not set
# CONFIG_C2PORT is not set
#