linux-kernel - [PATCH 05/28] mfd: mt6397-irq: Remove #ifdef guards for PM related functions

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Message-Id: <20220807145247.46107-6-paul@crapouillou.net>
Date:   Sun,  7 Aug 2022 16:52:24 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     linux-kernel@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH 05/28] mfd: mt6397-irq: Remove #ifdef guards for PM related functions

Use the new pm_sleep_ptr() macro to handle the .irq_set_wake() callback.

This macro allows the mt6397_irq_set_wake() function to be automatically
dropped by the compiler when CONFIG_SUSPEND is disabled, without having
to use #ifdef guards.

The advantage is then that these functions are now always compiled
independently of any Kconfig option, and thanks to that bugs and
regressions are easier to catch.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
Cc: Matthias Brugger <matthias.bgg@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-mediatek@...ts.infradead.org
---
 drivers/mfd/mt6397-irq.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/mfd/mt6397-irq.c b/drivers/mfd/mt6397-irq.c
index 2924919da991..69009d119216 100644
--- a/drivers/mfd/mt6397-irq.c
+++ b/drivers/mfd/mt6397-irq.c
@@ -52,7 +52,6 @@ static void mt6397_irq_enable(struct irq_data *data)
 	mt6397->irq_masks_cur[reg] |= BIT(shift);
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int mt6397_irq_set_wake(struct irq_data *irq_data, unsigned int on)
 {
 	struct mt6397_chip *mt6397 = irq_data_get_irq_chip_data(irq_data);
@@ -66,9 +65,6 @@ static int mt6397_irq_set_wake(struct irq_data *irq_data, unsigned int on)
 
 	return 0;
 }
-#else
-#define mt6397_irq_set_wake NULL
-#endif
 
 static struct irq_chip mt6397_irq_chip = {
 	.name = "mt6397-irq",
@@ -76,7 +72,7 @@ static struct irq_chip mt6397_irq_chip = {
 	.irq_bus_sync_unlock = mt6397_irq_sync_unlock,
 	.irq_enable = mt6397_irq_enable,
 	.irq_disable = mt6397_irq_disable,
-	.irq_set_wake = mt6397_irq_set_wake,
+	.irq_set_wake = pm_sleep_ptr(mt6397_irq_set_wake),
 };
 
 static void mt6397_irq_handle_reg(struct mt6397_chip *mt6397, int reg,
-- 
2.35.1