H6 supports IOSC calibration and an ext-osc32k input. Unlike newer SoCs,
it has a single parent for its fanout clock.
Add support for H6 in the CCU driver, replacing the support in the
existing early OF clock provider.
Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx>
---
Changes in v3:
- Rebase example on top of driver changes, and drop the second example.
drivers/clk/sunxi-ng/ccu-sun6i-rtc.c | 15 +++++++++++++++
drivers/rtc/rtc-sun6i.c | 17 -----------------
2 files changed, 15 insertions(+), 17 deletions(-)
diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
index a39670a7c446..712fda22efd5 100644
--- a/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
+++ b/drivers/clk/sunxi-ng/ccu-sun6i-rtc.c
@@ -295,6 +295,10 @@ static const struct sunxi_ccu_desc sun6i_rtc_ccu_desc = {
.hw_clks = &sun6i_rtc_ccu_hw_clks,
};
+static const struct clk_parent_data sun50i_h6_osc32k_fanout_parents[] = {
+ { .hw = &osc32k_clk.common.hw },
+};
+
static const struct clk_parent_data sun50i_h616_osc32k_fanout_parents[] = {
{ .hw = &osc32k_clk.common.hw },
{ .fw_name = "pll-32k" },
@@ -307,6 +311,13 @@ static const struct clk_parent_data sun50i_r329_osc32k_fanout_parents[] = {
{ .hw = &osc24M_32k_clk.common.hw }
};
+static const struct sun6i_rtc_match_data sun50i_h6_rtc_ccu_data = {
+ .have_ext_osc32k = true,
+ .have_iosc_calibration = true,
+ .osc32k_fanout_parents = sun50i_h6_osc32k_fanout_parents,
+ .osc32k_fanout_nparents = ARRAY_SIZE(sun50i_h6_osc32k_fanout_parents),
+};
+
static const struct sun6i_rtc_match_data sun50i_h616_rtc_ccu_data = {
.have_iosc_calibration = true,
.rtc_32k_single_parent = true,
@@ -321,6 +332,10 @@ static const struct sun6i_rtc_match_data sun50i_r329_rtc_ccu_data = {
};
static const struct of_device_id sun6i_rtc_ccu_match[] = {
+ {
+ .compatible = "allwinner,sun50i-h6-rtc",
+ .data = &sun50i_h6_rtc_ccu_data,
+ },
{
.compatible = "allwinner,sun50i-h616-rtc",
.data = &sun50i_h616_rtc_ccu_data,
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c
index 35b34d14a1db..1a875a32357d 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -364,23 +364,6 @@ CLK_OF_DECLARE_DRIVER(sun8i_h3_rtc_clk, "allwinner,sun8i-h3-rtc",
CLK_OF_DECLARE_DRIVER(sun50i_h5_rtc_clk, "allwinner,sun50i-h5-rtc",
sun8i_h3_rtc_clk_init);
-static const struct sun6i_rtc_clk_data sun50i_h6_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_h6_rtc_clk_init(struct device_node *node)
-{
- sun6i_rtc_clk_init(node, &sun50i_h6_rtc_data);
-}
-CLK_OF_DECLARE_DRIVER(sun50i_h6_rtc_clk, "allwinner,sun50i-h6-rtc",
- sun50i_h6_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
--
2.33.1
