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authorSamuel Holland <samuel@sholland.org>2022-02-03 05:17:36 +0300
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2022-03-23 21:58:38 +0300
commit1738890a3165ccd0da98ebd3e2d5f9b230d5afa8 (patch)
tree94568120b3c194eac5559c2bfa9f776c0613b82b
parentd91612d7f01aca454469976d25db761c5085ae4d (diff)
downloadlinux-1738890a3165ccd0da98ebd3e2d5f9b230d5afa8.tar.xz
clk: sunxi-ng: sun6i-rtc: Add support for H6
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@sholland.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20220203021736.13434-7-samuel@sholland.org
-rw-r--r--drivers/clk/sunxi-ng/ccu-sun6i-rtc.c15
-rw-r--r--drivers/rtc/rtc-sun6i.c17
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,
@@ -322,6 +333,10 @@ 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 5252ce4cbda4..5b3e4da63406 100644
--- a/drivers/rtc/rtc-sun6i.c
+++ b/drivers/rtc/rtc-sun6i.c
@@ -370,23 +370,6 @@ 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