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From:   Alex Elder <elder@linaro.org>
To:     davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com
Cc:     caleb.connolly@linaro.org, mka@chromium.org, evgreen@chromium.org,
        andersson@kernel.org, quic_cpratapa@quicinc.com,
        quic_avuyyuru@quicinc.com, quic_jponduru@quicinc.com,
        quic_subashab@quicinc.com, elder@kernel.org,
        netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH net-next v2 3/6] net: ipa: enable IPA interrupt handlers separate from registration
Date:   Wed,  4 Jan 2023 11:52:30 -0600
Message-Id: <20230104175233.2862874-4-elder@linaro.org>
In-Reply-To: <20230104175233.2862874-1-elder@linaro.org>
References: <20230104175233.2862874-1-elder@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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Expose ipa_interrupt_enable() and have functions that register
IPA interrupt handlers enable them directly, rather than having the
registration process do that.  Do the same for disabling IPA
interrupt handlers.

Signed-off-by: Alex Elder <elder@linaro.org>
---
v2  Declared enum ipa_irq_id at the top of "ipa_interrupt.c".

 drivers/net/ipa/ipa_interrupt.c |  8 ++------
 drivers/net/ipa/ipa_interrupt.h | 15 +++++++++++++++
 drivers/net/ipa/ipa_power.c     |  6 +++++-
 drivers/net/ipa/ipa_uc.c        |  4 ++++
 4 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ipa/ipa_interrupt.c b/drivers/net/ipa/ipa_interrupt.c
index 7b7388c14806f..87f4b94d02a3f 100644
--- a/drivers/net/ipa/ipa_interrupt.c
+++ b/drivers/net/ipa/ipa_interrupt.c
@@ -135,7 +135,7 @@ static void ipa_interrupt_enabled_update(struct ipa *ipa)
 }
 
 /* Enable an IPA interrupt type */
-static void ipa_interrupt_enable(struct ipa *ipa, enum ipa_irq_id ipa_irq)
+void ipa_interrupt_enable(struct ipa *ipa, enum ipa_irq_id ipa_irq)
 {
 	/* Update the IPA interrupt mask to enable it */
 	ipa->interrupt->enabled |= BIT(ipa_irq);
@@ -143,7 +143,7 @@ static void ipa_interrupt_enable(struct ipa *ipa, enum ipa_irq_id ipa_irq)
 }
 
 /* Disable an IPA interrupt type */
-static void ipa_interrupt_disable(struct ipa *ipa, enum ipa_irq_id ipa_irq)
+void ipa_interrupt_disable(struct ipa *ipa, enum ipa_irq_id ipa_irq)
 {
 	/* Update the IPA interrupt mask to disable it */
 	ipa->interrupt->enabled &= ~BIT(ipa_irq);
@@ -232,8 +232,6 @@ void ipa_interrupt_add(struct ipa_interrupt *interrupt,
 		return;
 
 	interrupt->handler[ipa_irq] = handler;
-
-	ipa_interrupt_enable(interrupt->ipa, ipa_irq);
 }
 
 /* Remove the handler for an IPA interrupt type */
@@ -243,8 +241,6 @@ ipa_interrupt_remove(struct ipa_interrupt *interrupt, enum ipa_irq_id ipa_irq)
 	if (WARN_ON(ipa_irq >= IPA_IRQ_COUNT))
 		return;
 
-	ipa_interrupt_disable(interrupt->ipa, ipa_irq);
-
 	interrupt->handler[ipa_irq] = NULL;
 }
 
diff --git a/drivers/net/ipa/ipa_interrupt.h b/drivers/net/ipa/ipa_interrupt.h
index f31fd9965fdc6..90b61e013064b 100644
--- a/drivers/net/ipa/ipa_interrupt.h
+++ b/drivers/net/ipa/ipa_interrupt.h
@@ -11,6 +11,7 @@
 
 struct ipa;
 struct ipa_interrupt;
+enum ipa_irq_id;
 
 /**
  * typedef ipa_irq_handler_t - IPA interrupt handler function type
@@ -85,6 +86,20 @@ void ipa_interrupt_suspend_clear_all(struct ipa_interrupt *interrupt);
  */
 void ipa_interrupt_simulate_suspend(struct ipa_interrupt *interrupt);
 
+/**
+ * ipa_interrupt_enable() - Enable an IPA interrupt type
+ * @ipa:	IPA pointer
+ * @ipa_irq:	IPA interrupt ID
+ */
+void ipa_interrupt_enable(struct ipa *ipa, enum ipa_irq_id ipa_irq);
+
+/**
+ * ipa_interrupt_disable() - Disable an IPA interrupt type
+ * @ipa:	IPA pointer
+ * @ipa_irq:	IPA interrupt ID
+ */
+void ipa_interrupt_disable(struct ipa *ipa, enum ipa_irq_id ipa_irq);
+
 /**
  * ipa_interrupt_config() - Configure the IPA interrupt framework
  * @ipa:	IPA pointer
diff --git a/drivers/net/ipa/ipa_power.c b/drivers/net/ipa/ipa_power.c
index 8420f93128a26..9148d606d5fc2 100644
--- a/drivers/net/ipa/ipa_power.c
+++ b/drivers/net/ipa/ipa_power.c
@@ -337,10 +337,13 @@ int ipa_power_setup(struct ipa *ipa)
 
 	ipa_interrupt_add(ipa->interrupt, IPA_IRQ_TX_SUSPEND,
 			  ipa_suspend_handler);
+	ipa_interrupt_enable(ipa, IPA_IRQ_TX_SUSPEND);
 
 	ret = device_init_wakeup(&ipa->pdev->dev, true);
-	if (ret)
+	if (ret) {
+		ipa_interrupt_disable(ipa, IPA_IRQ_TX_SUSPEND);
 		ipa_interrupt_remove(ipa->interrupt, IPA_IRQ_TX_SUSPEND);
+	}
 
 	return ret;
 }
@@ -348,6 +351,7 @@ int ipa_power_setup(struct ipa *ipa)
 void ipa_power_teardown(struct ipa *ipa)
 {
 	(void)device_init_wakeup(&ipa->pdev->dev, false);
+	ipa_interrupt_disable(ipa, IPA_IRQ_TX_SUSPEND);
 	ipa_interrupt_remove(ipa->interrupt, IPA_IRQ_TX_SUSPEND);
 }
 
diff --git a/drivers/net/ipa/ipa_uc.c b/drivers/net/ipa/ipa_uc.c
index 0a890b44c09e1..af541758d047f 100644
--- a/drivers/net/ipa/ipa_uc.c
+++ b/drivers/net/ipa/ipa_uc.c
@@ -187,7 +187,9 @@ void ipa_uc_config(struct ipa *ipa)
 	ipa->uc_powered = false;
 	ipa->uc_loaded = false;
 	ipa_interrupt_add(interrupt, IPA_IRQ_UC_0, ipa_uc_interrupt_handler);
+	ipa_interrupt_enable(ipa, IPA_IRQ_UC_0);
 	ipa_interrupt_add(interrupt, IPA_IRQ_UC_1, ipa_uc_interrupt_handler);
+	ipa_interrupt_enable(ipa, IPA_IRQ_UC_1);
 }
 
 /* Inverse of ipa_uc_config() */
@@ -195,7 +197,9 @@ void ipa_uc_deconfig(struct ipa *ipa)
 {
 	struct device *dev = &ipa->pdev->dev;
 
+	ipa_interrupt_disable(ipa, IPA_IRQ_UC_1);
 	ipa_interrupt_remove(ipa->interrupt, IPA_IRQ_UC_1);
+	ipa_interrupt_disable(ipa, IPA_IRQ_UC_0);
 	ipa_interrupt_remove(ipa->interrupt, IPA_IRQ_UC_0);
 	if (ipa->uc_loaded)
 		ipa_power_retention(ipa, false);
-- 
2.34.1