pinctrl: imx: Do not treat a PIN without MUX register as an error

Some PINs do not have a MUX register, it is not an error.
It is necessary to allow the continuation of the PINs configuration,
otherwise the whole PIN-group will be configured incorrectly.

Cc: stable@vger.kernel.org
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index 47ccfcc..eccb474 100644 (file)
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -209,9 +209,9 @@ static int imx_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
                pin_reg = &info->pin_regs[pin_id];
 
                if (pin_reg->mux_reg == -1) {
-                       dev_err(ipctl->dev, "Pin(%s) does not support mux function\n",
+                       dev_dbg(ipctl->dev, "Pin(%s) does not support mux function\n",
                                info->pins[pin_id].name);
-                       return -EINVAL;
+                       continue;
                }
 
                if (info->flags & SHARE_MUX_CONF_REG) {