rtc: ac100: support clock-output-names in device tree binding

The ac100 device tree binding specifies the usage of clock-output-names
to specify the names of its 3 clock outputs. This is needed for orphan
clock resolution, when the ac100 is probed much later than any clocks
that consume any of its outputs. This wasn't supported by the driver.

Add support for this.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/drivers/rtc/rtc-ac100.c b/drivers/rtc/rtc-ac100.c
index 70b4fd0f61225485ebe87480037c3562793f09d4..2d0bb02a25d952fe1ea08e6b412fc0ad5ebe5379 100644 (file)
--- a/drivers/rtc/rtc-ac100.c
+++ b/drivers/rtc/rtc-ac100.c
@@ -327,6 +327,8 @@ static int ac100_rtc_register_clks(struct ac100_rtc_dev *chip)
                        .flags = 0,
                };
 
+               of_property_read_string_index(np, "clock-output-names",
+                                             i, &init.name);
                clk->regmap = chip->regmap;
                clk->offset = AC100_CLKOUT_CTRL1 + i;
                clk->hw.init = &init;