[PATCH v2 2/8] clk: loongson2: Allow specifying clock flags for gate clock

From: Yao Zi
Date: Tue Jun 17 2025 - 12:51:15 EST


Some gate clocks need to be supplied with flags, e.g., it may be
required to specify CLK_IS_CRTICAL for CPU clocks.

Add a field to loongson2_clk_board_info for representing clock flags,
and specify it when registering gate clocks. A new helper macro,
CLK_GATE_FLAGS, is added to simplify definitions.

Signed-off-by: Yao Zi <ziyao@xxxxxxxxxxx>
---
drivers/clk/clk-loongson2.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk-loongson2.c b/drivers/clk/clk-loongson2.c
index 27e632edd484..cc3fb13e770f 100644
--- a/drivers/clk/clk-loongson2.c
+++ b/drivers/clk/clk-loongson2.c
@@ -50,6 +50,7 @@ struct loongson2_clk_board_info {
const char *name;
const char *parent_name;
unsigned long fixed_rate;
+ unsigned long flags;
u8 reg_offset;
u8 div_shift;
u8 div_width;
@@ -105,6 +106,18 @@ struct loongson2_clk_board_info {
.bit_idx = _bidx, \
}

+#define CLK_GATE_FLAGS(_id, _name, _pname, _offset, _bidx, \
+ _flags) \
+ { \
+ .id = _id, \
+ .type = CLK_TYPE_GATE, \
+ .name = _name, \
+ .parent_name = _pname, \
+ .reg_offset = _offset, \
+ .bit_idx = _bidx, \
+ .flags = _flags \
+ }
+
#define CLK_FIXED(_id, _name, _pname, _rate) \
{ \
.id = _id, \
@@ -332,7 +345,8 @@ static int loongson2_clk_probe(struct platform_device *pdev)
&clp->clk_lock);
break;
case CLK_TYPE_GATE:
- hw = devm_clk_hw_register_gate(dev, p->name, p->parent_name, 0,
+ hw = devm_clk_hw_register_gate(dev, p->name, p->parent_name,
+ p->flags,
clp->base + p->reg_offset,
p->bit_idx, 0,
&clp->clk_lock);
--
2.49.0