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authorDong Aisheng <dong.aisheng@linaro.org>2012-05-14 13:06:37 +0200
committerLinus Walleij <linus.walleij@linaro.org>2012-05-15 09:44:50 +0200
commit02b50ce4cb1b6aff7d9f1c0c5b4ceb44107bacb4 (patch)
tree1aabf2f9af80579bda0464c4546ac8370efebcf8 /drivers/pinctrl/pinmux.c
parentpinctrl: a minor error checking improvement for pinconf (diff)
downloadlinux-02b50ce4cb1b6aff7d9f1c0c5b4ceb44107bacb4.tar.xz
linux-02b50ce4cb1b6aff7d9f1c0c5b4ceb44107bacb4.zip
pinctrl: make pinmux disable function optional
Some SoCs may not have pinmux disable function in HW. Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinmux.c')
-rw-r--r--drivers/pinctrl/pinmux.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 220fa492c9f0..3d5ac73bd5a7 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -41,8 +41,7 @@ int pinmux_check_ops(struct pinctrl_dev *pctldev)
!ops->get_functions_count ||
!ops->get_function_name ||
!ops->get_function_groups ||
- !ops->enable ||
- !ops->disable) {
+ !ops->enable) {
dev_err(pctldev->dev, "pinmux ops lacks necessary functions\n");
return -EINVAL;
}
@@ -497,7 +496,8 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
desc->mux_setting = NULL;
}
- ops->disable(pctldev, setting->data.mux.func, setting->data.mux.group);
+ if (ops->disable)
+ ops->disable(pctldev, setting->data.mux.func, setting->data.mux.group);
}
#ifdef CONFIG_DEBUG_FS