Signed-off-by: Lee Jones <lee.jo...@linaro.org>
---
drivers/reset/sti/reset-syscfg.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/reset/sti/reset-syscfg.c b/drivers/reset/sti/reset-syscfg.c
index a145cc0..4453412 100644
--- a/drivers/reset/sti/reset-syscfg.c
+++ b/drivers/reset/sti/reset-syscfg.c
@@ -110,10 +110,33 @@ static int syscfg_reset_dev(struct reset_controller_dev
*rcdev,
return syscfg_reset_deassert(rcdev, idx);
}
+static int syscfg_reset_status(struct reset_controller_dev *rcdev,
+ unsigned long idx)
+{
+ struct syscfg_reset_controller *rst = to_syscfg_reset_controller(rcdev);
+ const struct syscfg_reset_channel *ch;
+ u32 ret_val = 0;
+ int err;
+
+ if (idx >= rcdev->nr_resets)
+ return -EINVAL;
+
+ ch = &rst->channels[idx];
+ if (ch->ack)
+ err = regmap_field_read(ch->ack, &ret_val);
+ else
+ err = regmap_field_read(ch->reset, &ret_val);
+ if (err)
+ return err;
+
+ return rst->active_low ? !ret_val : !!ret_val;
+}
+
static struct reset_control_ops syscfg_reset_ops = {
.reset = syscfg_reset_dev,
.assert = syscfg_reset_assert,
.deassert = syscfg_reset_deassert,
+ .status = syscfg_reset_status,
};
static int syscfg_reset_controller_register(struct device *dev,
--
1.9.1
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