[PATCH] rtc: hym8563: add optional clock-output-names property

["Heiko Stübner" <heiko@sntech.de>]

This enables the setting of a custom clock name for the clock provided by
the hym8563 rtc.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt | 3 +++
 drivers/rtc/rtc-hym8563.c                               | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
index 31406fd..5c199ee 100644
--- a/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
+++ b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt
@@ -9,6 +9,9 @@ Required properties:
 - interrupts: rtc alarm/event interrupt
 - #clock-cells: the value should be 0
 
+Optional properties:
+- clock-output-names: From common clock binding
+
 Example:
 
 hym8563: hym8563@51 {
diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
index e5f13c4..6442b5b 100644
--- a/drivers/rtc/rtc-hym8563.c
+++ b/drivers/rtc/rtc-hym8563.c
@@ -418,6 +418,9 @@ static struct clk *hym8563_clkout_register_clk(struct hym8563 *hym8563)
 	init.num_parents = 0;
 	hym8563->clkout_hw.init = &init;
 
+	/* optional override of the clockname */
+	of_property_read_string(node, "clock-output-names", &init.name);
+
 	/* register the clock */
 	clk = clk_register(&client->dev, &hym8563->clkout_hw);
 
-- 
1.9.0