Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Rasmus Villemoes <linux@rasmusvillemoes.dk>
To:     Qiang Zhao <qiang.zhao@nxp.com>, Li Yang <leoyang.li@nxp.com>,
        Christophe Leroy <christophe.leroy@c-s.fr>
Cc:     linuxppc-dev@lists.ozlabs.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Scott Wood <oss@buserror.net>,
        Rasmus Villemoes <linux@rasmusvillemoes.dk>
Subject: [PATCH v4 11/47] soc: fsl: qe: use qe_ic_cascade_{low,high}_mpic also on 83xx
Date:   Fri,  8 Nov 2019 14:00:47 +0100
Message-Id: <20191108130123.6839-12-linux@rasmusvillemoes.dk>
In-Reply-To: <20191108130123.6839-1-linux@rasmusvillemoes.dk>
References: <20191108130123.6839-1-linux@rasmusvillemoes.dk>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The *_ipic and *_mpic handlers are almost identical - the only
difference is that the latter end with an unconditional
chip->irq_eoi() call. Since IPIC does not have ->irq_eoi, we can
reduce some code duplication by calling irq_eoi conditionally.

This is similar to what is already done in mpc8xxx_gpio_irq_cascade().

This leaves the functions slightly misnamed, but that will be fixed in
a subsequent patch.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
 arch/powerpc/platforms/83xx/misc.c |  2 +-
 include/soc/fsl/qe/qe_ic.h         | 24 ++++--------------------
 2 files changed, 5 insertions(+), 21 deletions(-)

diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83xx/misc.c
index f46d7bf3b140..779791c0570f 100644
--- a/arch/powerpc/platforms/83xx/misc.c
+++ b/arch/powerpc/platforms/83xx/misc.c
@@ -100,7 +100,7 @@ void __init mpc83xx_qe_init_IRQ(void)
 		if (!np)
 			return;
 	}
-	qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
+	qe_ic_init(np, 0, qe_ic_cascade_low_mpic, qe_ic_cascade_high_mpic);
 	of_node_put(np);
 }
 
diff --git a/include/soc/fsl/qe/qe_ic.h b/include/soc/fsl/qe/qe_ic.h
index 714a9b890d8d..bfaa233d8328 100644
--- a/include/soc/fsl/qe/qe_ic.h
+++ b/include/soc/fsl/qe/qe_ic.h
@@ -74,24 +74,6 @@ void qe_ic_set_highest_priority(unsigned int virq, int high);
 int qe_ic_set_priority(unsigned int virq, unsigned int priority);
 int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high);
 
-static inline void qe_ic_cascade_low_ipic(struct irq_desc *desc)
-{
-	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
-	unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
-
-	if (cascade_irq != NO_IRQ)
-		generic_handle_irq(cascade_irq);
-}
-
-static inline void qe_ic_cascade_high_ipic(struct irq_desc *desc)
-{
-	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
-	unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
-
-	if (cascade_irq != NO_IRQ)
-		generic_handle_irq(cascade_irq);
-}
-
 static inline void qe_ic_cascade_low_mpic(struct irq_desc *desc)
 {
 	struct qe_ic *qe_ic = irq_desc_get_handler_data(desc);
@@ -101,7 +83,8 @@ static inline void qe_ic_cascade_low_mpic(struct irq_desc *desc)
 	if (cascade_irq != NO_IRQ)
 		generic_handle_irq(cascade_irq);
 
-	chip->irq_eoi(&desc->irq_data);
+	if (chip->irq_eoi)
+		chip->irq_eoi(&desc->irq_data);
 }
 
 static inline void qe_ic_cascade_high_mpic(struct irq_desc *desc)
@@ -113,7 +96,8 @@ static inline void qe_ic_cascade_high_mpic(struct irq_desc *desc)
 	if (cascade_irq != NO_IRQ)
 		generic_handle_irq(cascade_irq);
 
-	chip->irq_eoi(&desc->irq_data);
+	if (chip->irq_eoi)
+		chip->irq_eoi(&desc->irq_data);
 }
 
 static inline void qe_ic_cascade_muxed_mpic(struct irq_desc *desc)
-- 
2.23.0