summaryrefslogtreecommitdiff
path: root/drivers/pinctrl/cirrus
AgeCommit message (Collapse)Author
2018-10-12pinctrl: madera: Fix uninitialized variable bug in madera_mux_set_muxGustavo A. R. Silva
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 <gustavo@embeddedor.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-10-01Merge tag 'v4.19-rc6' into develLinus Walleij
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 <linus.walleij@linaro.org>
2018-08-29pinctrl: madera: Fix possible NULL pointer with pdata configRichard Fitzgerald
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 <rf@opensource.cirrus.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: madera: Fix missing space in debugfs outputRichard Fitzgerald
The SCHMITT tag was being dumped without a separating space. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: madera: Return ENOTSUPP for unsupported pin attributesRichard Fitzgerald
The pin_config_[get|set] functions should return ENOTSUPP if the requested attribute isn't supported. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-08-29pinctrl: madera: Set is_genericRichard Fitzgerald
We are using the generic pin configuration interface so we can set is_generic. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-06-05pinctrl: madera: Add driver for Cirrus Logic Madera codecsRichard Fitzgerald
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 <rf@opensource.cirrus.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>