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path: root/drivers/reset/core.c
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-rw-r--r--drivers/reset/core.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index baeaf82d40d9..7955e00d04d4 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -126,6 +126,21 @@ int reset_control_deassert(struct reset_control *rstc)
126EXPORT_SYMBOL_GPL(reset_control_deassert); 126EXPORT_SYMBOL_GPL(reset_control_deassert);
127 127
128/** 128/**
129 * reset_control_status - returns a negative errno if not supported, a
130 * positive value if the reset line is asserted, or zero if the reset
131 * line is not asserted.
132 * @rstc: reset controller
133 */
134int reset_control_status(struct reset_control *rstc)
135{
136 if (rstc->rcdev->ops->status)
137 return rstc->rcdev->ops->status(rstc->rcdev, rstc->id);
138
139 return -ENOSYS;
140}
141EXPORT_SYMBOL_GPL(reset_control_status);
142
143/**
129 * of_reset_control_get - Lookup and obtain a reference to a reset controller. 144 * of_reset_control_get - Lookup and obtain a reference to a reset controller.
130 * @node: device to be reset by the controller 145 * @node: device to be reset by the controller
131 * @id: reset line name 146 * @id: reset line name