Allwinner R329 SoC has a RTC with similar clock control capability to
H6, but its day storage changed to be linear, similar to the one in H616
RTC.
Add support for it.
Signed-off-by: Icenowy Zheng <icenowy@xxxxxxxxxx>
---
drivers/rtc/rtc-sun6i.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index 752bea949050..06eca57e5215 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -386,6 +386,24 @@ static void __init sun50i_h6_rtc_clk_init(struct device_node *node)
CLK_OF_DECLARE_DRIVER(sun50i_h6_rtc_clk, "allwinner,sun50i-h6-rtc",
sun50i_h6_rtc_clk_init);
+static const struct sun6i_rtc_clk_data sun50i_r329_rtc_data = {
+ .rc_osc_rate = 16000000,
+ .fixed_prescaler = 32,
+ .has_prescaler = 1,
+ .has_out_clk = 1,
+ .export_iosc = 1,
+ .has_losc_en = 1,
+ .has_auto_swt = 1,
+};
+
+static void __init sun50i_r329_rtc_clk_init(struct device_node *node)
+{
+ sun6i_rtc_clk_init(node, &sun50i_r329_rtc_data);
+}
+
+CLK_OF_DECLARE_DRIVER(sun50i_r329_rtc_clk, "allwinner,sun50i-r329-rtc",
+ sun50i_r329_rtc_clk_init);
+
/*
* The R40 user manual is self-conflicting on whether the prescaler is
* fixed or configurable. The clock diagram shows it as fixed, but there
@@ -791,6 +809,8 @@ static const struct of_device_id sun6i_rtc_dt_ids[] = {
{ .compatible = "allwinner,sun8i-v3-rtc" },
{ .compatible = "allwinner,sun50i-h5-rtc" },
{ .compatible = "allwinner,sun50i-h6-rtc" },
+ { .compatible = "allwinner,sun50i-r329-rtc",
+ .data = (void *)RTC_LINEAR_DAY },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, sun6i_rtc_dt_ids);
--
2.30.2
