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From: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
To: tglx@linutronix.de, jason@lakedaemon.net, maz@kernel.org, s-anna@ti.com
Cc: grzegorz.jaszczyk@linaro.org, robh+dt@kernel.org,
	lee.jones@linaro.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, david@lechnology.com,
	praneeth@ti.com
Subject: [RESEND PATCH v5 4/5] irqchip/irq-pruss-intc: Implement irq_{get,set}_irqchip_state ops
Date: Mon, 31 Aug 2020 17:09:17 +0200	[thread overview]
Message-ID: <1598886558-16546-5-git-send-email-grzegorz.jaszczyk@linaro.org> (raw)
In-Reply-To: <1598886558-16546-1-git-send-email-grzegorz.jaszczyk@linaro.org>

From: David Lechner <david@lechnology.com>

This implements the irq_get_irqchip_state and irq_set_irqchip_state
callbacks for the TI PRUSS INTC driver. The set callback can be used
by drivers to "kick" a PRU by injecting a PRU system event.

Example:
     irq_set_irqchip_state(irq, IRQCHIP_STATE_PENDING, true);

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Reviewed-by: Lee Jones <lee.jones@linaro.org>
---
v4->v5:
- No change.
v3->v4:
- Update commit message
v2->v3:
- Get rid of unnecessary pruss_intc_check_write() and use
  pruss_intc_write_reg directly.
v1->v2:
- https://patchwork.kernel.org/patch/11069769/
---
 drivers/irqchip/irq-pruss-intc.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/drivers/irqchip/irq-pruss-intc.c b/drivers/irqchip/irq-pruss-intc.c
index 1a72591..15f0407 100644
--- a/drivers/irqchip/irq-pruss-intc.c
+++ b/drivers/irqchip/irq-pruss-intc.c
@@ -9,6 +9,7 @@
  * Copyright (C) 2019 David Lechner <david@lechnology.com>
  */
 
+#include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
@@ -319,6 +320,43 @@ static void pruss_intc_irq_relres(struct irq_data *data)
 	module_put(THIS_MODULE);
 }
 
+static int pruss_intc_irq_get_irqchip_state(struct irq_data *data,
+					    enum irqchip_irq_state which,
+					    bool *state)
+{
+	struct pruss_intc *intc = irq_data_get_irq_chip_data(data);
+	u32 reg, mask, srsr;
+
+	if (which != IRQCHIP_STATE_PENDING)
+		return -EINVAL;
+
+	reg = PRU_INTC_SRSR(data->hwirq / 32);
+	mask = BIT(data->hwirq % 32);
+
+	srsr = pruss_intc_read_reg(intc, reg);
+
+	*state = !!(srsr & mask);
+
+	return 0;
+}
+
+static int pruss_intc_irq_set_irqchip_state(struct irq_data *data,
+					    enum irqchip_irq_state which,
+					    bool state)
+{
+	struct pruss_intc *intc = irq_data_get_irq_chip_data(data);
+
+	if (which != IRQCHIP_STATE_PENDING)
+		return -EINVAL;
+
+	if (state)
+		pruss_intc_write_reg(intc, PRU_INTC_SISR, data->hwirq);
+	else
+		pruss_intc_write_reg(intc, PRU_INTC_SICR, data->hwirq);
+
+	return 0;
+}
+
 static struct irq_chip pruss_irqchip = {
 	.name = "pruss-intc",
 	.irq_ack = pruss_intc_irq_ack,
@@ -326,6 +364,8 @@ static struct irq_chip pruss_irqchip = {
 	.irq_unmask = pruss_intc_irq_unmask,
 	.irq_request_resources = pruss_intc_irq_reqres,
 	.irq_release_resources = pruss_intc_irq_relres,
+	.irq_get_irqchip_state = pruss_intc_irq_get_irqchip_state,
+	.irq_set_irqchip_state = pruss_intc_irq_set_irqchip_state,
 };
 
 static int pruss_intc_validate_mapping(struct pruss_intc *intc, int event,
-- 
2.7.4


WARNING: multiple messages have this Message-ID
From: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
To: tglx@linutronix.de, jason@lakedaemon.net, maz@kernel.org, s-anna@ti.com
Cc: devicetree@vger.kernel.org, grzegorz.jaszczyk@linaro.org,
	david@lechnology.com, praneeth@ti.com,
	linux-kernel@vger.kernel.org, robh+dt@kernel.org,
	linux-omap@vger.kernel.org, lee.jones@linaro.org,
	linux-arm-kernel@lists.infradead.org
Subject: [RESEND PATCH v5 4/5] irqchip/irq-pruss-intc: Implement irq_{get, set}_irqchip_state ops
Date: Mon, 31 Aug 2020 17:09:17 +0200	[thread overview]
Message-ID: <1598886558-16546-5-git-send-email-grzegorz.jaszczyk@linaro.org> (raw)
In-Reply-To: <1598886558-16546-1-git-send-email-grzegorz.jaszczyk@linaro.org>

From: David Lechner <david@lechnology.com>

This implements the irq_get_irqchip_state and irq_set_irqchip_state
callbacks for the TI PRUSS INTC driver. The set callback can be used
by drivers to "kick" a PRU by injecting a PRU system event.

Example:
     irq_set_irqchip_state(irq, IRQCHIP_STATE_PENDING, true);

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Reviewed-by: Lee Jones <lee.jones@linaro.org>
---
v4->v5:
- No change.
v3->v4:
- Update commit message
v2->v3:
- Get rid of unnecessary pruss_intc_check_write() and use
  pruss_intc_write_reg directly.
v1->v2:
- https://patchwork.kernel.org/patch/11069769/
---
 drivers/irqchip/irq-pruss-intc.c | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/drivers/irqchip/irq-pruss-intc.c b/drivers/irqchip/irq-pruss-intc.c
index 1a72591..15f0407 100644
--- a/drivers/irqchip/irq-pruss-intc.c
+++ b/drivers/irqchip/irq-pruss-intc.c
@@ -9,6 +9,7 @@
  * Copyright (C) 2019 David Lechner <david@lechnology.com>
  */
 
+#include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
@@ -319,6 +320,43 @@ static void pruss_intc_irq_relres(struct irq_data *data)
 	module_put(THIS_MODULE);
 }
 
+static int pruss_intc_irq_get_irqchip_state(struct irq_data *data,
+					    enum irqchip_irq_state which,
+					    bool *state)
+{
+	struct pruss_intc *intc = irq_data_get_irq_chip_data(data);
+	u32 reg, mask, srsr;
+
+	if (which != IRQCHIP_STATE_PENDING)
+		return -EINVAL;
+
+	reg = PRU_INTC_SRSR(data->hwirq / 32);
+	mask = BIT(data->hwirq % 32);
+
+	srsr = pruss_intc_read_reg(intc, reg);
+
+	*state = !!(srsr & mask);
+
+	return 0;
+}
+
+static int pruss_intc_irq_set_irqchip_state(struct irq_data *data,
+					    enum irqchip_irq_state which,
+					    bool state)
+{
+	struct pruss_intc *intc = irq_data_get_irq_chip_data(data);
+
+	if (which != IRQCHIP_STATE_PENDING)
+		return -EINVAL;
+
+	if (state)
+		pruss_intc_write_reg(intc, PRU_INTC_SISR, data->hwirq);
+	else
+		pruss_intc_write_reg(intc, PRU_INTC_SICR, data->hwirq);
+
+	return 0;
+}
+
 static struct irq_chip pruss_irqchip = {
 	.name = "pruss-intc",
 	.irq_ack = pruss_intc_irq_ack,
@@ -326,6 +364,8 @@ static struct irq_chip pruss_irqchip = {
 	.irq_unmask = pruss_intc_irq_unmask,
 	.irq_request_resources = pruss_intc_irq_reqres,
 	.irq_release_resources = pruss_intc_irq_relres,
+	.irq_get_irqchip_state = pruss_intc_irq_get_irqchip_state,
+	.irq_set_irqchip_state = pruss_intc_irq_set_irqchip_state,
 };
 
 static int pruss_intc_validate_mapping(struct pruss_intc *intc, int event,
-- 
2.7.4


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  parent reply	other threads:[~2020-08-31 15:10 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-31 15:09 [RESEND PATCH v5 0/5] Add TI PRUSS Local Interrupt Controller IRQChip driver Grzegorz Jaszczyk
2020-08-31 15:09 ` Grzegorz Jaszczyk
2020-08-31 15:09 ` [RESEND PATCH v5 1/5] dt-bindings: irqchip: Add PRU-ICSS interrupt controller bindings Grzegorz Jaszczyk
2020-08-31 15:09   ` Grzegorz Jaszczyk
2020-08-31 15:09 ` [RESEND PATCH v5 2/5] irqchip/irq-pruss-intc: Add a PRUSS irqchip driver for PRUSS interrupts Grzegorz Jaszczyk
2020-08-31 15:09   ` Grzegorz Jaszczyk
2020-08-31 15:42   ` Randy Dunlap
2020-08-31 15:42     ` Randy Dunlap
2020-09-12  9:44   ` Marc Zyngier
2020-09-12  9:44     ` Marc Zyngier
2020-09-14 14:57     ` Grzegorz Jaszczyk
2020-09-14 14:57       ` Grzegorz Jaszczyk
2020-09-14 15:20       ` Marc Zyngier
2020-09-14 15:20         ` Marc Zyngier
2020-08-31 15:09 ` [RESEND PATCH v5 3/5] irqchip/irq-pruss-intc: Add logic for handling reserved interrupts Grzegorz Jaszczyk
2020-08-31 15:09   ` Grzegorz Jaszczyk
2020-08-31 15:09 ` Grzegorz Jaszczyk [this message]
2020-08-31 15:09   ` [RESEND PATCH v5 4/5] irqchip/irq-pruss-intc: Implement irq_{get, set}_irqchip_state ops Grzegorz Jaszczyk
2020-09-12  9:49   ` [RESEND PATCH v5 4/5] irqchip/irq-pruss-intc: Implement irq_{get,set}_irqchip_state ops Marc Zyngier
2020-09-12  9:49     ` [RESEND PATCH v5 4/5] irqchip/irq-pruss-intc: Implement irq_{get, set}_irqchip_state ops Marc Zyngier
2020-09-14 14:59     ` [RESEND PATCH v5 4/5] irqchip/irq-pruss-intc: Implement irq_{get,set}_irqchip_state ops Grzegorz Jaszczyk
2020-09-14 14:59       ` Grzegorz Jaszczyk
2020-08-31 15:09 ` [RESEND PATCH v5 5/5] irqchip/irq-pruss-intc: Add support for ICSSG INTC on K3 SoCs Grzegorz Jaszczyk
2020-08-31 15:09   ` Grzegorz Jaszczyk

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