[PATCH v2 12/22] clk: starfive: Introduce inverter and divider
Changhuang Liang
changhuang.liang at starfivetech.com
Thu May 7 22:36:22 PDT 2026
Introduce inverter and divider for starfive clocks.
Signed-off-by: Changhuang Liang <changhuang.liang at starfivetech.com>
---
drivers/clk/starfive/clk-starfive-common.c | 12 ++++++++++++
drivers/clk/starfive/clk-starfive-common.h | 8 ++++++++
2 files changed, 20 insertions(+)
diff --git a/drivers/clk/starfive/clk-starfive-common.c b/drivers/clk/starfive/clk-starfive-common.c
index ece0464741a5..108ed2a45c3b 100644
--- a/drivers/clk/starfive/clk-starfive-common.c
+++ b/drivers/clk/starfive/clk-starfive-common.c
@@ -300,6 +300,15 @@ static const struct clk_ops starfive_clk_inv_ops = {
.debug_init = starfive_clk_debug_init,
};
+static const struct clk_ops starfive_clk_idiv_ops = {
+ .get_phase = starfive_clk_get_phase,
+ .set_phase = starfive_clk_set_phase,
+ .recalc_rate = starfive_clk_recalc_rate,
+ .determine_rate = starfive_clk_determine_rate,
+ .set_rate = starfive_clk_set_rate,
+ .debug_init = starfive_clk_debug_init,
+};
+
const struct clk_ops *starfive_clk_ops(u32 max)
{
if (max & STARFIVE_CLK_DIV_MASK) {
@@ -310,6 +319,9 @@ const struct clk_ops *starfive_clk_ops(u32 max)
}
if (max & STARFIVE_CLK_ENABLE)
return &starfive_clk_gdiv_ops;
+ else if (max & STARFIVE_CLK_INVERT)
+ return &starfive_clk_idiv_ops;
+
if (max == STARFIVE_CLK_FRAC_MAX)
return &starfive_clk_fdiv_ops;
return &starfive_clk_div_ops;
diff --git a/drivers/clk/starfive/clk-starfive-common.h b/drivers/clk/starfive/clk-starfive-common.h
index 70eb7b7492e6..05352dbb6b87 100644
--- a/drivers/clk/starfive/clk-starfive-common.h
+++ b/drivers/clk/starfive/clk-starfive-common.h
@@ -104,6 +104,14 @@ struct starfive_clk_data {
.parents = { [0] = _parent }, \
}
+#define STARFIVE_IDIV(_idx, _name, _flags, _max, _parent) \
+[_idx] = { \
+ .name = _name, \
+ .flags = _flags, \
+ .max = STARFIVE_CLK_INVERT | (_max), \
+ .parents = { [0] = _parent }, \
+}
+
struct starfive_clk {
struct clk_hw hw;
unsigned int idx;
--
2.25.1
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