diff options
Diffstat (limited to 'drivers/rtc/rtc-sun6i.c')
| -rw-r--r-- | drivers/rtc/rtc-sun6i.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index 852f5f3b3592..415a20a936e4 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -250,19 +250,17 @@ static void __init sun6i_rtc_clk_init(struct device_node *node, writel(reg, rtc->base + SUN6I_LOSC_CTRL); } - /* Switch to the external, more precise, oscillator */ - reg |= SUN6I_LOSC_CTRL_EXT_OSC; - if (rtc->data->has_losc_en) - reg |= SUN6I_LOSC_CTRL_EXT_LOSC_EN; + /* Switch to the external, more precise, oscillator, if present */ + if (of_get_property(node, "clocks", NULL)) { + reg |= SUN6I_LOSC_CTRL_EXT_OSC; + if (rtc->data->has_losc_en) + reg |= SUN6I_LOSC_CTRL_EXT_LOSC_EN; + } writel(reg, rtc->base + SUN6I_LOSC_CTRL); /* Yes, I know, this is ugly. */ sun6i_rtc = rtc; - /* Deal with old DTs */ - if (!of_get_property(node, "clocks", NULL)) - goto err; - /* Only read IOSC name from device tree if it is exported */ if (rtc->data->export_iosc) of_property_read_string_index(node, "clock-output-names", 2, @@ -279,11 +277,13 @@ static void __init sun6i_rtc_clk_init(struct device_node *node, } parents[0] = clk_hw_get_name(rtc->int_osc); + /* If there is no external oscillator, this will be NULL and ... */ parents[1] = of_clk_get_parent_name(node, 0); rtc->hw.init = &init; init.parent_names = parents; + /* ... number of clock parents will be 1. */ init.num_parents = of_clk_get_parent_count(node) + 1; of_property_read_string_index(node, "clock-output-names", 0, &init.name); |