This is a note to let you know that I've just added the patch titled
i2c: mux: gpio: use gpio_set_value_cansleep()
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
i2c-mux-gpio-use-gpio_set_value_cansleep.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 250ad590d6f12d93f4d85be305b0a598d609232e Mon Sep 17 00:00:00 2001
From: Ionut Nicu <[email protected]>
Date: Fri, 11 Oct 2013 14:17:10 +0200
Subject: i2c: mux: gpio: use gpio_set_value_cansleep()
From: Ionut Nicu <[email protected]>
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 <[email protected]>
Acked-by: Peter Korsgaard <[email protected]>
Signed-off-by: Wolfram Sang <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
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)
Patches currently in stable-queue which might be from [email protected] are
queue-3.12/i2c-mux-gpio-use-reg-value-for-i2c_add_mux_adapter.patch
queue-3.12/i2c-mux-gpio-use-gpio_set_value_cansleep.patch
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