From: Hartmut Knaack <knaack.h@gmx.de>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-kernel@vger.kernel.org
Subject: [Patch 1/2] gpio-pca953x: fix gpio_base and add verbosity
Date: Tue, 11 Oct 2011 00:22:45 +0200 [thread overview]
Message-ID: <4E937035.8020806@gmx.de> (raw)
gpio_base was set to 0 if no system platform data or open firmware
platform data was provided. This led to conflicts, if any other gpiochip
with a gpiobase of 0 was instantiated already. Setting it to -1 will
automatically use the first one available.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
-------------------------------------------------------------
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index c43b8ff..ae479fd 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -577,6 +577,7 @@ pca953x_get_alt_pdata(struct i2c_client *client, int
*gpio_base, int *invert)
void
pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int
*invert)
{
+ *gpio_base = -1;
}
#endif
next reply other threads:[~2011-10-10 22:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-10 22:22 Hartmut Knaack [this message]
2011-10-13 19:46 ` [Patch 1/2] gpio-pca953x: fix gpio_base and add verbosity Grant Likely
2011-10-13 19:52 ` Grant Likely
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