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authorThomas Abraham <thomas.ab@samsung.com>2013-03-27 00:12:32 +0900
committerLinus Walleij <linus.walleij@linaro.org>2013-04-09 10:13:59 +0200
commitf9819739427e6049d2d318743a4a25817018afd4 (patch)
treee20c54b3e58bf9a8f9314f3124f1db780b141203 /drivers/pinctrl
parent2e8ff91a5b86952beb45619734a05247d57baf09 (diff)
pinctrl: exynos5440: fix probe failure due to missing pin-list in config nodes
The property 'samsung,exynos5440-pins' is optional in configuration nodes which are included in the Exynos5440 pin-controller device node. Fix the incorrect failure in driver probe if 'samsung,exynos5440-pins' property is not found in the configuration nodes. Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/pinctrl-exynos5440.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index eb8e502e11e..7126b7db86c 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -670,8 +670,10 @@ static int exynos5440_pinctrl_parse_dt(struct platform_device *pdev,
ret = exynos5440_pinctrl_parse_dt_pins(pdev, cfg_np,
&pin_list, &npins);
- if (ret)
- return ret;
+ if (ret) {
+ gname = NULL;
+ goto skip_to_pin_function;
+ }
/* derive pin group name from the node name */
gname = devm_kzalloc(dev, strlen(cfg_np->name) + GSUFFIX_LEN,
@@ -687,6 +689,7 @@ static int exynos5440_pinctrl_parse_dt(struct platform_device *pdev,
grp->num_pins = npins;
grp++;
+skip_to_pin_function:
ret = of_property_read_u32(cfg_np, "samsung,exynos5440-pin-function",
&function);
if (ret)
@@ -709,7 +712,7 @@ static int exynos5440_pinctrl_parse_dt(struct platform_device *pdev,
return -ENOMEM;
}
func->groups[0] = gname;
- func->num_groups = 1;
+ func->num_groups = gname ? 1 : 0;
func->function = function;
func++;
func_idx++;