From: Stefan Agner <stefan@agner.ch>
To: shawn.guo@linaro.org, kernel@pengutronix.de, jason@lakedaemon.net
Cc: marc.zyngier@arm.com, linux@arm.linux.org.uk,
u.kleine-koenig@pengutronix.de, olof@lixom.net, arnd@arndb.de,
daniel.lezcano@linaro.org, tglx@linutronix.de,
mark.rutland@arm.com, pawel.moll@arm.com, robh+dt@kernel.org,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
mcoquelin.stm32@gmail.com, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Stefan Agner <stefan@agner.ch>
Subject: [PATCH v7 02/13] genirq: Add irq_chip_(enable|disable)_parent
Date: Sat, 16 May 2015 11:44:14 +0200 [thread overview]
Message-ID: <1431769465-26867-3-git-send-email-stefan@agner.ch> (raw)
In-Reply-To: <1431769465-26867-1-git-send-email-stefan@agner.ch>
Add helper irq_chip_enable_parent and irq_chip_disable_parent. The
helper implement the default behavior in case irq_enable or irq_disable
is not implemented for the parent interrupt chip, which is calling the
irq_mask or irq_unmask respectively.
Signed-off-by: Stefan Agner <stefan@agner.ch>
---
include/linux/irq.h | 2 ++
kernel/irq/chip.c | 28 ++++++++++++++++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 62c6901..2633061 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -458,6 +458,8 @@ extern void handle_nested_irq(unsigned int irq);
extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg);
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
+extern void irq_chip_enable_parent(struct irq_data *data);
+extern void irq_chip_disable_parent(struct irq_data *data);
extern void irq_chip_ack_parent(struct irq_data *data);
extern int irq_chip_retrigger_hierarchy(struct irq_data *data);
extern void irq_chip_mask_parent(struct irq_data *data);
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index eb9a4ea..2456fe8 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -876,6 +876,34 @@ void irq_cpu_offline(void)
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
/**
+ * irq_chip_enable_parent - Enable the parent interrupt (defaults to unmask if
+ * NULL)
+ * @data: Pointer to interrupt specific data
+ */
+void irq_chip_enable_parent(struct irq_data *data)
+{
+ data = data->parent_data;
+ if (data->chip->irq_enable)
+ data->chip->irq_enable(data);
+ else
+ data->chip->irq_unmask(data);
+}
+
+/**
+ * irq_chip_disable_parent - Disable the parent interrupt (defaults to mask if
+ * NULL)
+ * @data: Pointer to interrupt specific data
+ */
+void irq_chip_disable_parent(struct irq_data *data)
+{
+ data = data->parent_data;
+ if (data->chip->irq_disable)
+ data->chip->irq_disable(data);
+ else
+ data->chip->irq_mask(data);
+}
+
+/**
* irq_chip_ack_parent - Acknowledge the parent interrupt
* @data: Pointer to interrupt specific data
*/
--
2.4.1
next prev parent reply other threads:[~2015-05-16 9:44 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-16 9:44 [PATCH v7 00/13] ARM: vf610m4: Add Vybrid Cortex-M4 support Stefan Agner
2015-05-16 9:44 ` [PATCH v7 01/13] irqdomain: Add non-hierarchy helper irq_domain_set_info Stefan Agner
2015-05-18 15:36 ` [tip:irq/core] " tip-bot for Stefan Agner
2015-05-16 9:44 ` Stefan Agner [this message]
2015-05-18 15:36 ` [tip:irq/core] genirq: Add irq_chip_(enable/disable)_parent tip-bot for Stefan Agner
2015-05-16 9:44 ` [PATCH v7 03/13] genirq: generic chip: support hierarchy domain Stefan Agner
2015-05-18 15:37 ` [tip:irq/core] genirq: generic chip: Support " tip-bot for Stefan Agner
2015-05-16 9:44 ` [PATCH v7 04/13] irqchip: nvic: support hierarchy irq domain Stefan Agner
2015-05-18 15:37 ` [tip:irq/core] irqchip: nvic: Support " tip-bot for Stefan Agner
2015-05-16 9:44 ` [PATCH v7 05/13] irqchip: vf610-mscm: support NVIC parent Stefan Agner
2015-05-18 15:37 ` [tip:irq/core] irqchip: vf610-mscm: Support NVIC parent chip tip-bot for Stefan Agner
2015-05-18 22:03 ` tip-bot for Stefan Agner
2015-05-16 9:44 ` [PATCH v7 06/13] ARM: ARMv7M: define size of vector table for Vybrid Stefan Agner
2015-05-16 9:44 ` [PATCH v7 07/13] clocksource: add dependencies for Vybrid pit clocksource Stefan Agner
2015-05-16 9:44 ` [PATCH v7 08/13] ARM: unify MMU/!MMU addruart calls Stefan Agner
2015-05-16 20:51 ` Russell King - ARM Linux
2015-05-17 7:53 ` Thomas Gleixner
2015-05-18 15:36 ` Thomas Gleixner
2015-05-19 5:35 ` Shawn Guo
2015-05-19 8:11 ` Thomas Gleixner
2015-05-19 8:56 ` Shawn Guo
2015-05-19 10:16 ` Russell King - ARM Linux
2015-05-19 11:23 ` Stefan Agner
2015-05-19 11:50 ` Arnd Bergmann
2015-05-19 16:06 ` Stefan Agner
2015-05-19 18:24 ` Arnd Bergmann
2015-05-19 21:26 ` Stefan Agner
2015-05-19 21:32 ` Thomas Gleixner
2015-05-19 21:32 ` Stefan Agner
2015-05-19 21:37 ` Arnd Bergmann
2015-05-19 21:37 ` Joachim Eastwood
2015-05-16 9:44 ` [PATCH v7 09/13] ARM: introduce ARM_SINGLE_ARMV7M for ARMv7-M platforms Stefan Agner
2015-05-16 9:44 ` [PATCH v7 10/13] ARM: efm32: use ARM_SINGLE_ARMV7M Stefan Agner
2015-05-19 12:14 ` Uwe Kleine-König
2015-05-16 9:44 ` [PATCH v7 11/13] ARM: vf610: enable Cortex-M4 configuration on Vybrid SoC Stefan Agner
2015-05-16 9:44 ` [PATCH v7 12/13] ARM: dts: add support for Vybrid running on Cortex-M4 Stefan Agner
2015-05-16 9:44 ` [PATCH v7 13/13] ARM: vf610m4: add defconfig for Linux on Vybrids Cortex-M4 Stefan Agner
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