From: Ionut Nicu <ioan.nicu.ext@nsn.com>
To: Peter Korsgaard <peter.korsgaard@barco.com>
Cc: Wolfram Sang <wsa@the-dreams.de>,
Alexander Sverdlin <alexander.sverdlin@nsn.com>,
linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] i2c-mux-gpio: use gpio_set_value_cansleep()
Date: Fri, 11 Oct 2013 12:09:53 +0200 [thread overview]
Message-ID: <5257CE71.5060408@nsn.com> (raw)
Some gpio chips may have get/set operations that
can sleep. gpio_set_value() only works for chips
which do not sleep, for the others we will get a
kernel warning. Using gpio_set_value_cansleep()
will work for both chips that do sleep and those
who don't.
Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
---
drivers/i2c/muxes/i2c-mux-gpio.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index a764da7..550e094 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -30,8 +30,8 @@ static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned val)
int i;
for (i = 0; i < mux->data.n_gpios; i++)
- gpio_set_value(mux->gpio_base + mux->data.gpios[i],
- val & (1 << i));
+ gpio_set_value_cansleep(mux->gpio_base + mux->data.gpios[i],
+ val & (1 << i));
}
static int i2c_mux_gpio_select(struct i2c_adapter *adap, void *data, u32 chan)
--
1.7.1
next reply other threads:[~2013-10-11 10:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-11 10:09 Ionut Nicu [this message]
2013-10-11 11:21 ` [PATCH 1/2] i2c-mux-gpio: use gpio_set_value_cansleep() Peter Korsgaard
-- strict thread matches above, loose matches on Subject: below --
2013-10-11 12:17 Ionut Nicu
2013-10-30 16:28 ` Wolfram Sang
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