| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.12 037/212] i2c: mux: gpio: use gpio_set_value_cansleep() | Date | Mon, 2 Dec 2013 11:13:48 -0800 |
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3.12-stable review patch. If anyone has any objections, please let me know.
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From: Ionut Nicu <ioan.nicu.ext@nsn.com>
commit 250ad590d6f12d93f4d85be305b0a598d609232e upstream.
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> Acked-by: Peter Korsgaard <peter.korsgaard@barco.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/i2c/muxes/i2c-mux-gpio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- 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 struc 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)
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