From: Maxime Coquelin <mcoquelin.stm32@gmail.com>
To: Jonathan Corbet <corbet@lwn.net>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Russell King <linux@arm.linux.org.uk>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Linus Walleij <linus.walleij@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.cz>, Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
"David S. Miller" <davem@davemloft.net>,
Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
Joe Perches <joe@perches.com>, Antti Palosaari <crope@iki.fi>,
Tejun Heo <tj@kernel.org>, Will Deacon <will.deacon@arm.com>,
Nikolay Borisov <Nikolay.Borisov@arm.com>,
Rusty Russell <rusty@rustcorp.com.au>,
Kees Cook <keescook@chromium.org>, Michal Marek <mmarek@suse.cz>,
linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org,
linux-arch@vger.kernel.org, linux-api@vger.kernel.org
Subject: [PATCH 04/14] reset: Add reset_controller_of_init() function
Date: Thu, 12 Feb 2015 18:45:54 +0100 [thread overview]
Message-ID: <1423763164-5606-5-git-send-email-mcoquelin.stm32@gmail.com> (raw)
In-Reply-To: <1423763164-5606-1-git-send-email-mcoquelin.stm32@gmail.com>
Some platforms need to initialize the reset controller before the timers.
This patch introduces a reset_controller_of_init() function that can be
called before the timers intialization.
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
---
drivers/reset/core.c | 20 ++++++++++++++++++++
include/asm-generic/vmlinux.lds.h | 4 +++-
include/linux/reset-controller.h | 6 ++++++
3 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index 7955e00..18ee579 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -86,6 +86,26 @@ void reset_controller_unregister(struct reset_controller_dev *rcdev)
}
EXPORT_SYMBOL_GPL(reset_controller_unregister);
+extern struct of_device_id __reset_ctrl_of_table[];
+
+static const struct of_device_id __reset_ctrl_of_table_sentinel
+ __used __section(__reset_ctrl_of_table_end);
+
+void __init reset_controller_of_init(void)
+{
+ struct device_node *np;
+ const struct of_device_id *match;
+ of_init_fn_1 init_func;
+
+ for_each_matching_node_and_match(np, __reset_ctrl_of_table, &match) {
+ if (!of_device_is_available(np))
+ continue;
+
+ init_func = match->data;
+ init_func(np);
+ }
+}
+
/**
* reset_control_reset - reset the controlled device
* @rstc: reset controller
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index bee5d68..1f96365 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -168,6 +168,7 @@
#define RESERVEDMEM_OF_TABLES() OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem)
#define CPU_METHOD_OF_TABLES() OF_TABLE(CONFIG_SMP, cpu_method)
#define EARLYCON_OF_TABLES() OF_TABLE(CONFIG_SERIAL_EARLYCON, earlycon)
+#define RESET_CTRL_OF_TABLES() OF_TABLE(CONFIG_RESET_CONTROLLER, reset_ctrl)
#define KERNEL_DTB() \
STRUCT_ALIGN(); \
@@ -502,7 +503,8 @@
CPU_METHOD_OF_TABLES() \
KERNEL_DTB() \
IRQCHIP_OF_MATCH_TABLE() \
- EARLYCON_OF_TABLES()
+ EARLYCON_OF_TABLES() \
+ RESET_CTRL_OF_TABLES()
#define INIT_TEXT \
*(.init.text) \
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index ce6b962..f8a030a 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -51,4 +51,10 @@ struct reset_controller_dev {
int reset_controller_register(struct reset_controller_dev *rcdev);
void reset_controller_unregister(struct reset_controller_dev *rcdev);
+
+#define RESET_CONTROLLER_OF_DECLARE(name, compat, fn) \
+ OF_DECLARE_1(reset_ctrl, name, compat, fn)
+
+void reset_controller_of_init(void);
+
#endif
--
1.9.1
next prev parent reply other threads:[~2015-02-12 17:46 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-12 17:45 [PATCH 00/14] Add support to STMicroelectronics STM32 family Maxime Coquelin
2015-02-12 17:45 ` [PATCH 01/14] scripts: link-vmlinux: Don't pass page offset to kallsyms if XIP Kernel Maxime Coquelin
2015-02-12 17:45 ` [PATCH 02/14] ARM: ARMv7M: Enlarge vector table to 256 entries Maxime Coquelin
2015-02-12 20:34 ` Geert Uytterhoeven
2015-02-13 8:42 ` Maxime Coquelin
2015-02-13 10:00 ` Uwe Kleine-König
2015-02-15 14:34 ` Maxime Coquelin
2015-02-15 22:42 ` Rob Herring
2015-02-19 16:13 ` Maxime Coquelin
2015-02-19 16:35 ` Rob Herring
2015-02-12 17:45 ` [PATCH 03/14] clocksource: Add ARM System timer driver Maxime Coquelin
2015-02-15 22:31 ` Rob Herring
2015-02-16 12:08 ` Maxime Coquelin
2015-02-15 23:43 ` Andreas Färber
2015-02-16 12:21 ` Maxime Coquelin
2015-02-12 17:45 ` Maxime Coquelin [this message]
2015-02-13 11:49 ` [PATCH 04/14] reset: Add reset_controller_of_init() function Philipp Zabel
2015-02-13 16:00 ` Maxime Coquelin
2015-02-12 17:45 ` [PATCH 05/14] ARM: call reset_controller_of_init from default time_init handler Maxime Coquelin
2015-02-15 22:17 ` Rob Herring
2015-02-15 23:12 ` Russell King - ARM Linux
2015-02-16 15:48 ` Rob Herring
2015-02-16 12:02 ` Maxime Coquelin
2015-02-12 17:45 ` [PATCH 06/14] drivers: reset: Add STM32 reset driver Maxime Coquelin
2015-02-15 23:59 ` Andreas Färber
2015-02-16 12:25 ` Maxime Coquelin
2015-02-12 17:45 ` [PATCH 07/14] clockevent: Add STM32 Timer driver Maxime Coquelin
2015-03-06 8:57 ` Linus Walleij
2015-02-12 17:45 ` [PATCH 08/14] pinctrl: Add pinctrl driver for STM32 MCUs Maxime Coquelin
2015-02-12 20:37 ` Geert Uytterhoeven
2015-02-13 8:43 ` Maxime Coquelin
2015-02-12 17:45 ` [PATCH 09/14] serial: stm32-usart: Add STM32 USART Driver Maxime Coquelin
2015-02-12 17:46 ` [PATCH 10/14] ARM: Add STM32 family machine Maxime Coquelin
2015-02-12 17:46 ` [PATCH 11/14] ARM: dts: Add ARM System timer as clockevent in armv7m Maxime Coquelin
2015-02-12 17:46 ` [PATCH 12/14] ARM: dts: Introduce STM32F429 MCU Maxime Coquelin
2015-02-13 11:47 ` Philipp Zabel
2015-02-13 15:59 ` Maxime Coquelin
2015-02-13 16:25 ` Philipp Zabel
2015-02-13 16:41 ` Maxime Coquelin
2015-02-13 19:18 ` Philipp Zabel
2015-02-15 14:36 ` Maxime Coquelin
2015-02-12 17:46 ` [PATCH 13/14] ARM: configs: Add STM32 defconfig Maxime Coquelin
2015-02-12 17:46 ` [PATCH 14/14] MAINTAINERS: Add entry for STM32 MCUs Maxime Coquelin
2015-03-06 9:03 ` Linus Walleij
2015-03-06 9:55 ` Maxime Coquelin
2015-03-09 16:47 ` Linus Walleij
2015-03-09 17:01 ` Maxime Coquelin
2015-02-15 15:14 ` [PATCH 00/14] Add support to STMicroelectronics STM32 family Andreas Färber
2015-02-16 11:52 ` Maxime Coquelin
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