linux-toradex.git/drivers/pinctrl/cirrus, branch v5.0

pinctrl: madera: Fix uninitialized variable bug in madera_mux_set_mux

2018-10-12T09:14:38+00:00

There is a potential execution path in which variable *ret* is checked
in an IF statement, and then its value is used to report an error at
line 659 without being properly initialized previously:

659 if (ret)
660	dev_err(priv->dev, "Failed to write to 0x%x (%d)\n", reg, ret);

Fix this by initializing variable *ret* to 0 in order to
avoid unpredictable or unintended results.

Addresses-Coverity-ID: 1471969 ("Uninitialized scalar variable")
Fixes: 218d72a77b0b ("pinctrl: madera: Add driver for Cirrus Logic Madera codecs")
Signed-off-by: Gustavo A. R. Silva 
Acked-by: Charles Keepax 
Signed-off-by: Linus Walleij

Merge tag 'v4.19-rc6' into devel

2018-10-01T11:20:45+00:00

This is the 4.19-rc6 release

I needed to merge this in because of extensive conflicts in
the MSM and Intel pin control drivers. I know how to resolve
them, so let's do it like this.

Signed-off-by: Linus Walleij

pinctrl: madera: Fix possible NULL pointer with pdata config

2018-08-29T12:02:47+00:00

If we are being configured via pdata we don't necessarily have
any gpio mappings being configured that way so pdata->gpio_config
could be NULL.

Signed-off-by: Richard Fitzgerald 
Signed-off-by: Linus Walleij

pinctrl: madera: Fix missing space in debugfs output

2018-08-29T08:44:27+00:00

The SCHMITT tag was being dumped without a separating space.

Signed-off-by: Richard Fitzgerald 
Signed-off-by: Linus Walleij

pinctrl: madera: Return ENOTSUPP for unsupported pin attributes

2018-08-29T08:42:02+00:00

The pin_config_[get|set] functions should return ENOTSUPP if
the requested attribute isn't supported.

Signed-off-by: Richard Fitzgerald 
Signed-off-by: Linus Walleij

pinctrl: madera: Set is_generic

2018-08-29T08:41:11+00:00

We are using the generic pin configuration interface so
we can set is_generic.

Signed-off-by: Richard Fitzgerald 
Signed-off-by: Linus Walleij

pinctrl: madera: Add driver for Cirrus Logic Madera codecs

2018-06-05T10:15:23+00:00

These codecs have a variable number of I/O lines each of which
is individually selectable to a wide range of possible functions.

The functionality is slightly different from the traditional muxed
GPIO since most of the functions can be mapped to any pin (and even
the same function to multiple pins). Most pins have a dedicated
"alternate" function that is only available on that pin. The
alternate functions are usually a group of signals, though it is
not always necessary to enable the full group, depending on the
alternate function and how it is to be used. The mapping between
alternate functions and GPIO pins varies between codecs depending
on the number of alternate functions and available pins.

Signed-off-by: Richard Fitzgerald 
Reviewed-by: Linus Walleij 
Signed-off-by: Lee Jones