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Message-Id: <1427629542-28185-1-git-send-email-ckeepax@opensource.wolfsonmicro.com>
Date: Sun, 29 Mar 2015 12:45:42 +0100
From: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To: lee.jones@...aro.org
Cc: sameo@...ux.intel.com, patches@...nsource.wolfsonmicro.com,
linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: arizona: Correct type of gpio_defaults
gpio_defaults needs to be specified as an unsigned int rather than an
int, because the intention of the DT binding is that all out of range
values for a 16-bit register will cause the defaults to be used,
however, if gpio_defaults is an int then values that are larger than
INT_MAX will become negative numbers and be written out directly to the
hardware. As no where in the code replies on gpio_defaults being an int,
the simplest fix is to just change it to unsigned.
Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
---
include/linux/mfd/arizona/pdata.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 48fe313..1789cb0 100644
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -94,7 +94,7 @@ struct arizona_pdata {
int gpio_base;
/** Pin state for GPIO pins */
- int gpio_defaults[ARIZONA_MAX_GPIO];
+ unsigned int gpio_defaults[ARIZONA_MAX_GPIO];
/**
* Maximum number of channels clocks will be generated for,
--
1.7.2.5
--
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