All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Andreas Färber" <afaerber@suse.de>
To: linux-realtek-soc@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, "Andreas Färber" <afaerber@suse.de>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Jason Cooper" <jason@lakedaemon.net>,
	"Marc Zyngier" <maz@kernel.org>
Subject: [PATCH v5 3/9] irqchip: rtd1195-mux: Implement irq_get_irqchip_state
Date: Thu, 21 Nov 2019 06:02:02 +0100	[thread overview]
Message-ID: <20191121050208.11324-4-afaerber@suse.de> (raw)
In-Reply-To: <20191121050208.11324-1-afaerber@suse.de>

Implement the .irq_get_irqchip_state callback to retrieve pending,
active and masked interrupt status.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v5: New
 
 drivers/irqchip/irq-rtd1195-mux.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/irqchip/irq-rtd1195-mux.c b/drivers/irqchip/irq-rtd1195-mux.c
index 0e86973aafca..2f1bcfd9d5d6 100644
--- a/drivers/irqchip/irq-rtd1195-mux.c
+++ b/drivers/irqchip/irq-rtd1195-mux.c
@@ -7,6 +7,7 @@
 
 #include <linux/bitops.h>
 #include <linux/io.h>
+#include <linux/interrupt.h>
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
@@ -96,10 +97,45 @@ static void rtd1195_mux_unmask_irq(struct irq_data *data)
 	raw_spin_unlock_irqrestore(&mux->lock, flags);
 }
 
+static int rtd1195_mux_get_irqchip_state(struct irq_data *data,
+	enum irqchip_irq_state which, bool *state)
+{
+	struct rtd1195_irq_mux_data *mux = irq_data_get_irq_chip_data(data);
+	u32 val;
+
+	switch (which) {
+	case IRQCHIP_STATE_PENDING:
+		/*
+		 * UMSK_ISR provides the unmasked pending interrupts,
+		 * except UART and I2C.
+		 */
+		val = readl_relaxed(mux->reg_umsk_isr);
+		*state = !!(val & BIT(data->hwirq));
+		break;
+	case IRQCHIP_STATE_ACTIVE:
+		/*
+		 * ISR provides the masked pending interrupts,
+		 * including UART and I2C.
+		 */
+		val = readl_relaxed(mux->reg_isr);
+		*state = !!(val & BIT(data->hwirq));
+		break;
+	case IRQCHIP_STATE_MASKED:
+		val = mux->info->isr_to_int_en_mask[data->hwirq];
+		*state = !(mux->scpu_int_en & val);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static const struct irq_chip rtd1195_mux_irq_chip = {
 	.irq_ack		= rtd1195_mux_ack_irq,
 	.irq_mask		= rtd1195_mux_mask_irq,
 	.irq_unmask		= rtd1195_mux_unmask_irq,
+	.irq_get_irqchip_state	= rtd1195_mux_get_irqchip_state,
 };
 
 static int rtd1195_mux_irq_domain_map(struct irq_domain *d,
-- 
2.16.4


WARNING: multiple messages have this Message-ID (diff)
From: "Andreas Färber" <afaerber@suse.de>
To: linux-realtek-soc@lists.infradead.org
Cc: "Jason Cooper" <jason@lakedaemon.net>,
	"Marc Zyngier" <maz@kernel.org>,
	linux-kernel@vger.kernel.org,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Andreas Färber" <afaerber@suse.de>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 3/9] irqchip: rtd1195-mux: Implement irq_get_irqchip_state
Date: Thu, 21 Nov 2019 06:02:02 +0100	[thread overview]
Message-ID: <20191121050208.11324-4-afaerber@suse.de> (raw)
In-Reply-To: <20191121050208.11324-1-afaerber@suse.de>

Implement the .irq_get_irqchip_state callback to retrieve pending,
active and masked interrupt status.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v5: New
 
 drivers/irqchip/irq-rtd1195-mux.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/irqchip/irq-rtd1195-mux.c b/drivers/irqchip/irq-rtd1195-mux.c
index 0e86973aafca..2f1bcfd9d5d6 100644
--- a/drivers/irqchip/irq-rtd1195-mux.c
+++ b/drivers/irqchip/irq-rtd1195-mux.c
@@ -7,6 +7,7 @@
 
 #include <linux/bitops.h>
 #include <linux/io.h>
+#include <linux/interrupt.h>
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
@@ -96,10 +97,45 @@ static void rtd1195_mux_unmask_irq(struct irq_data *data)
 	raw_spin_unlock_irqrestore(&mux->lock, flags);
 }
 
+static int rtd1195_mux_get_irqchip_state(struct irq_data *data,
+	enum irqchip_irq_state which, bool *state)
+{
+	struct rtd1195_irq_mux_data *mux = irq_data_get_irq_chip_data(data);
+	u32 val;
+
+	switch (which) {
+	case IRQCHIP_STATE_PENDING:
+		/*
+		 * UMSK_ISR provides the unmasked pending interrupts,
+		 * except UART and I2C.
+		 */
+		val = readl_relaxed(mux->reg_umsk_isr);
+		*state = !!(val & BIT(data->hwirq));
+		break;
+	case IRQCHIP_STATE_ACTIVE:
+		/*
+		 * ISR provides the masked pending interrupts,
+		 * including UART and I2C.
+		 */
+		val = readl_relaxed(mux->reg_isr);
+		*state = !!(val & BIT(data->hwirq));
+		break;
+	case IRQCHIP_STATE_MASKED:
+		val = mux->info->isr_to_int_en_mask[data->hwirq];
+		*state = !(mux->scpu_int_en & val);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static const struct irq_chip rtd1195_mux_irq_chip = {
 	.irq_ack		= rtd1195_mux_ack_irq,
 	.irq_mask		= rtd1195_mux_mask_irq,
 	.irq_unmask		= rtd1195_mux_unmask_irq,
+	.irq_get_irqchip_state	= rtd1195_mux_get_irqchip_state,
 };
 
 static int rtd1195_mux_irq_domain_map(struct irq_domain *d,
-- 
2.16.4


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2019-11-21  5:02 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-21  5:01 [PATCH v5 0/9] ARM: Realtek RTD1195/RTD1295/RTD1395 IRQ mux Andreas Färber
2019-11-21  5:01 ` Andreas Färber
2019-11-21  5:02 ` [PATCH v5 1/9] dt-bindings: interrupt-controller: Add Realtek RTD1195/RTD1295 mux Andreas Färber
2019-11-21  5:02   ` Andreas Färber
2019-11-21  5:02 ` [PATCH v5 2/9] irqchip: Add Realtek RTD1295 mux driver Andreas Färber
2019-11-21  5:02   ` Andreas Färber
2019-11-21  5:02 ` Andreas Färber [this message]
2019-11-21  5:02   ` [PATCH v5 3/9] irqchip: rtd1195-mux: Implement irq_get_irqchip_state Andreas Färber
2019-12-12 13:48   ` Marc Zyngier
2019-12-12 13:48     ` Marc Zyngier
2019-11-21  5:02 ` [PATCH v5 4/9] arm64: dts: realtek: rtd129x: Add irq muxes and UART interrupts Andreas Färber
2019-11-21  5:02   ` Andreas Färber
2019-11-21  5:02 ` [PATCH v5 5/9] irqchip: rtd1195-mux: Add RTD1195 definitions Andreas Färber
2019-11-21  5:02   ` Andreas Färber
2019-11-21  5:02 ` [PATCH v5 6/9] ARM: dts: rtd1195: Add irq muxes and UART interrupts Andreas Färber
2019-11-21  5:02   ` Andreas Färber
2019-11-21  5:02 ` [PATCH v5 7/9] dt-bindings: interrupt-controller: rtd1195-mux: Add RTD1395 Andreas Färber
2019-11-21  5:02   ` Andreas Färber
2019-11-22 23:34   ` Rob Herring
2019-11-22 23:34     ` Rob Herring
2019-11-21  5:02 ` [PATCH v5 8/9] irqchip: rtd1195-mux: Add RTD1395 definitions Andreas Färber
2019-11-21  5:02   ` Andreas Färber
2019-11-21  5:02 ` [PATCH v5 9/9] arm64: dts: realtek: rtd139x: Add irq muxes and UART interrupts Andreas Färber
2019-11-21  5:02   ` Andreas Färber

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191121050208.11324-4-afaerber@suse.de \
    --to=afaerber@suse.de \
    --cc=jason@lakedaemon.net \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-realtek-soc@lists.infradead.org \
    --cc=maz@kernel.org \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.