This series adds support for Loongson 2K0300's clock controller.
Loongson 2 clock driver is prepared to support more clock variants and
its flexibility is improved. All clock hardwares except the output one
for GMAC module are then defined.
A clock tree dump could be obtained here[1]. This series depends on v3
of series "Initial support for CTCISZ Forever Pi"[2] to apply.
Krzysztof, sorry I don't fully understand your comments in v2, I've
asked once again later[3] but got no reply, thus sent this new version
with my current understanding. I'm willing to hear from you more on the
binding issue, thanks.
[1]: https://gist.github.com/ziyao233/f7c4edcfbc1d6b325c71117af7233cc2
[2]: https://lore.kernel.org/all/20250523095408.25919-1-ziyao@disroot.org/
[3]: https://lore.kernel.org/all/aHB3Wvu-CVlYzhU7@pie.lan/
Changed from v2:
- Disallow clock-names property for loongson,2k0300-clk's binding, avoid
overriding content of clock-names property within an allOf block
- Correct clock-controller's MMIO-region size in SoC devicetree
- Link to v2: https://lore.kernel.org/all/20250617162426.12629-1-ziyao@disroot.org/
Changed from v1:
- Fold loongson,ls2k0300-clk.yaml into loongson,ls2k-clk.yaml
- Include the new binding header in MAINTAINERS
- Link to v1: https://lore.kernel.org/all/20250523104552.32742-1-ziyao@disroot.org/
Yao Zi (8):
dt-bindings: clock: loongson2: Add Loongson 2K0300 compatible
clk: loongson2: Allow specifying clock flags for gate clock
clk: loongson2: Support scale clocks with an alternative mode
clk: loongson2: Allow zero divisors for dividers
clk: loongson2: Avoid hardcoding firmware name of the reference clock
clk: loongson2: Add clock definitions for Loongson 2K0300 SoC
LoongArch: dts: Add clock tree for Loongson 2K0300
LoongArch: dts: Remove clock-frquency from UART0 of CTCISZ Forever Pi
.../bindings/clock/loongson,ls2k-clk.yaml | 21 ++-
MAINTAINERS | 1 +
.../dts/loongson-2k0300-ctcisz-forever-pi.dts | 1 -
arch/loongarch/boot/dts/loongson-2k0300.dtsi | 16 ++-
drivers/clk/clk-loongson2.c | 124 +++++++++++++++---
.../dt-bindings/clock/loongson,ls2k0300-clk.h | 54 ++++++++
6 files changed, 189 insertions(+), 28 deletions(-)
create mode 100644 include/dt-bindings/clock/loongson,ls2k0300-clk.h
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2.50.1