From: Yash Shah <yash.shah@sifive.com>
To: "linus.walleij@linaro.org" <linus.walleij@linaro.org>,
"bgolaszewski@baylibre.com" <bgolaszewski@baylibre.com>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
"palmer@dabbelt.com" <palmer@dabbelt.com>,
"Paul Walmsley ( Sifive)" <paul.walmsley@sifive.com>
Cc: "aou@eecs.berkeley.edu" <aou@eecs.berkeley.edu>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"jason@lakedaemon.net" <jason@lakedaemon.net>,
"maz@kernel.org" <maz@kernel.org>,
"bmeng.cn@gmail.com" <bmeng.cn@gmail.com>,
"atish.patra@wdc.com" <atish.patra@wdc.com>,
Sagar Kadam <sagar.kadam@sifive.com>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-riscv@lists.infradead.org"
<linux-riscv@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Sachin Ghadi <sachin.ghadi@sifive.com>,
Yash Shah <yash.shah@sifive.com>
Subject: [PATCH v3 1/6] genirq: introduce irq_domain_translate_onecell
Date: Mon, 25 Nov 2019 05:57:47 +0000 [thread overview]
Message-ID: <1574661437-28486-2-git-send-email-yash.shah@sifive.com> (raw)
In-Reply-To: <1574661437-28486-1-git-send-email-yash.shah@sifive.com>
Add a new function irq_domain_translate_onecell() that is to be used as
the translate function in struct irq_domain_ops.
Signed-off-by: Yash Shah <yash.shah@sifive.com>
---
include/linux/irqdomain.h | 5 +++++
kernel/irq/irqdomain.c | 17 +++++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 583e7ab..cad9eb8 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -426,6 +426,11 @@ int irq_domain_translate_twocell(struct irq_domain *d,
unsigned long *out_hwirq,
unsigned int *out_type);
+int irq_domain_translate_onecell(struct irq_domain *d,
+ struct irq_fwspec *fwspec,
+ unsigned long *out_hwirq,
+ unsigned int *out_type);
+
/* IPI functions */
int irq_reserve_ipi(struct irq_domain *domain, const struct cpumask *dest);
int irq_destroy_ipi(unsigned int irq, const struct cpumask *dest);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 132672b..cf57d87d 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -987,6 +987,23 @@ const struct irq_domain_ops irq_domain_simple_ops = {
EXPORT_SYMBOL_GPL(irq_domain_simple_ops);
/**
+ * irq_domain_translate_onecell() - Generic translate for direct one cell
+ * bindings
+ */
+int irq_domain_translate_onecell(struct irq_domain *d,
+ struct irq_fwspec *fwspec,
+ unsigned long *out_hwirq,
+ unsigned int *out_type)
+{
+ if (WARN_ON(fwspec->param_count < 1))
+ return -EINVAL;
+ *out_hwirq = fwspec->param[0];
+ *out_type = IRQ_TYPE_NONE;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(irq_domain_translate_onecell);
+
+/**
* irq_domain_translate_twocell() - Generic translate for direct two cell
* bindings
*
--
2.7.4
next prev parent reply other threads:[~2019-11-25 5:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-25 5:57 [PATCH v3 0/6] GPIO & Hierarchy IRQ support for HiFive Unleashed Yash Shah
2019-11-25 5:57 ` Yash Shah [this message]
2019-11-25 5:57 ` [PATCH v3 2/6] irqchip: nvic: Use irq_domain_translate_onecell instead of custom func Yash Shah
2019-11-25 5:57 ` [PATCH v3 3/6] irqchip: sifive: Support hierarchy irq domain Yash Shah
2019-11-25 5:58 ` [PATCH v3 4/6] gpio: sifive: Add DT documentation for SiFive GPIO Yash Shah
2019-11-28 12:18 ` Linus Walleij
2019-12-05 17:27 ` Rob Herring
2019-11-25 5:58 ` [PATCH v3 5/6] gpio: sifive: Add GPIO driver for SiFive SoCs Yash Shah
2019-11-25 14:02 ` Bartosz Golaszewski
2019-11-28 12:20 ` Linus Walleij
2019-11-29 6:27 ` Yash Shah
2019-11-29 9:12 ` Marc Zyngier
2019-12-07 1:07 ` Palmer Dabbelt
2019-11-25 5:58 ` [PATCH v3 6/6] riscv: dts: Add DT support for SiFive FU540 GPIO driver Yash Shah
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