diff options
Diffstat (limited to 'drivers/rtc/rtc-sun6i.c')
| -rw-r--r-- | drivers/rtc/rtc-sun6i.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index 46609ae56ffd..11f56de52179 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -136,6 +136,7 @@ struct sun6i_rtc_clk_data { unsigned int fixed_prescaler : 16; unsigned int has_prescaler : 1; unsigned int has_out_clk : 1; + unsigned int export_iosc : 1; }; struct sun6i_rtc_dev { @@ -220,6 +221,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node, .ops = &sun6i_rtc_osc_ops, .name = "losc", }; + const char *iosc_name = "rtc-int-osc"; const char *clkout_name = "osc32k-out"; const char *parents[2]; @@ -228,7 +230,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node, return; rtc->data = data; - clk_data = kzalloc(struct_size(clk_data, hws, 2), GFP_KERNEL); + clk_data = kzalloc(struct_size(clk_data, hws, 3), GFP_KERNEL); if (!clk_data) { kfree(rtc); return; @@ -253,8 +255,13 @@ static void __init sun6i_rtc_clk_init(struct device_node *node, 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, + &iosc_name); + rtc->int_osc = clk_hw_register_fixed_rate_with_accuracy(NULL, - "rtc-int-osc", + iosc_name, NULL, 0, rtc->data->rc_osc_rate, 300000000); @@ -293,6 +300,10 @@ static void __init sun6i_rtc_clk_init(struct device_node *node, clk_data->num = 2; clk_data->hws[0] = &rtc->hw; clk_data->hws[1] = __clk_get_hw(rtc->ext_losc); + if (rtc->data->export_iosc) { + clk_data->hws[2] = rtc->int_osc; + clk_data->num = 3; + } of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); return; @@ -330,6 +341,7 @@ static const struct sun6i_rtc_clk_data sun8i_h3_rtc_data = { .fixed_prescaler = 32, .has_prescaler = 1, .has_out_clk = 1, + .export_iosc = 1, }; static void __init sun8i_h3_rtc_clk_init(struct device_node *node) |