linux-kernel - [PATCH v2 1/2] mfd: arizona: Add stub for wm5102

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Message-Id: <1431532346-10851-1-git-send-email-rf@opensource.wolfsonmicro.com>
Date:	Wed, 13 May 2015 16:52:25 +0100
From:	Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
To:	lee.jones@...aro.org
Cc:	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: [PATCH v2 1/2] mfd: arizona: Add stub for wm5102_patch()

For the WM5102 there is a dependency in the core code on wm5102_patch()
which only exists when CONFIG_MFD_WM5102 is defined. To avoid having
to sprinkle #ifdefs around the code it is given an alternative empty
stub version when CONFIG_MFD_WM5102 is deselected

Signed-off-by: Richard Fitzgerald <rf@...nsource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@...aro.org>
---
 include/linux/mfd/arizona/core.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/include/linux/mfd/arizona/core.h b/include/linux/mfd/arizona/core.h
index 16a498f..7597164 100644
--- a/include/linux/mfd/arizona/core.h
+++ b/include/linux/mfd/arizona/core.h
@@ -153,7 +153,15 @@ int arizona_request_irq(struct arizona *arizona, int irq, char *name,
 void arizona_free_irq(struct arizona *arizona, int irq, void *data);
 int arizona_set_irq_wake(struct arizona *arizona, int irq, int on);
 
+#ifdef CONFIG_MFD_WM5102
 int wm5102_patch(struct arizona *arizona);
+#else
+static inline int wm5102_patch(struct arizona *arizona)
+{
+	return 0;
+}
+#endif
+
 int wm5110_patch(struct arizona *arizona);
 int wm8997_patch(struct arizona *arizona);
 
-- 
1.7.2.5

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