pinctrl: make "hog" mapping table entries work

Commit 77a5988 "pinctrl: changes hog mechanism to be self-referential"
modified the way "hog" entries were represented in the mapping table.
However, the new representation failed some error checks in
pinctrl_hog_map(). Remove the now-bogus error-check, and fix the code
to solve the issue the error-check used to avoid.

Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 1 insertions, 13 deletions

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index c5f76ad5a8c5..8a91eb24eb52 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -725,23 +725,11 @@ static int pinctrl_hog_map(struct pinctrl_dev *pctldev,
         struct pinctrl *p;
         int ret;
 
-        if (map->dev_name) {
-                /*
-                 * TODO: the day we have device tree support, we can
-                 * traverse the device tree and hog to specific device nodes
-                 * without any problems, so then we can hog pinmuxes for
-                 * all devices that just want a static pin mux at this point.
-                 */
-                dev_err(pctldev->dev, "map %s wants to hog a non-system pinmux, this is not going to work\n",
-                                map->name);
-                return -EINVAL;
-        }
-
         hog = kzalloc(sizeof(struct pinctrl_hog), GFP_KERNEL);
         if (!hog)
                 return -ENOMEM;
 
-        p = pinctrl_get(NULL, map->name);
+        p = pinctrl_get(pctldev->dev, map->name);
         if (IS_ERR(p)) {
                 kfree(hog);
                 dev_err(pctldev->dev,