[PATCH v7 0/4] riscv: sophgo: add clock support for sg2042

From: Chen Wang
Date: Mon Jan 08 2024 - 01:48:03 EST


From: Chen Wang <unicorn_wang@xxxxxxxxxxx>

This series adds clock controller support for sophgo sg2042.

Thanks,
Chen

---

Changes in v7:
The patch series is based on v6.7. You can simply review or test the
patches at the link [8].
- fixed initval issue.
- fixed pll clk crash issue.
- fixed warning reported by <lkp@xxxxxxxxx>
- code optimization as per review comments.
- code cleanup and style improvements as per review comments and checkpatch
with "--strict"

Changes in v6:
The patch series is based on v6.7-rc1. You can simply review or test the
patches at the link [7].
- fixed some warnings/errors reported by kernel test robot <lkp@xxxxxxxxx>.

Changes in v5:
The patch series is based on v6.7-rc1. You can simply review or test the
patches at the link [6].
- dt-bindings: improved yaml, such as:
- add vendor prefix for system-ctrl property for clock generator.
- Add explanation for system-ctrl property.
- move sophgo,sg2042-clkgen.yaml to directly under clock folder.
- fixed bugs for driver Makefile/Kconfig
- continue cleaning-up debug print for driver code.

Changes in v4:
The patch series is based on v6.7-rc1. You can simply review or test the
patches at the link [5].
- dt-bindings: fixed a dt_binding_check error.

Changes in v3:
The patch series is based on v6.7-rc1. You can simply review or test the
patches at the link [3].
- DTS: don't use syscon but define sg2042 specific system control node. More
background info can read [4].
- Updating minor issues in dt-bindings as per input from reviews.

Changes in v2:
The patch series is based on v6.7-rc1. You can simply review or test the
patches at the link [2].
- Squashed the patch adding clock definitions with the patch adding the
binding for the clock controller.
- Updating dt-binding for syscon, remove oneOf for property compatible;
define clock controller as child of syscon.
- DTS changes: merge sg2042-clock.dtsi into sg2042.dtsi; move clock-frequency
property of osc to board devicethree due to the oscillator is outside the
SoC.
- Fixed some bugs in driver code during testing, including removing warnings
for rv32_defconfig.
- Updated MAINTAINERS info.

Changes in v1:
The patch series is based on v6.7-rc1. You can simply review or test the
patches at the link [1].

Link: https://github.com/unicornx/linux-riscv/commits/upstream-sg2042-clock-v1 [1]
Link: https://github.com/unicornx/linux-riscv/commits/upstream-sg2042-clock-v2 [2]
Link: https://github.com/unicornx/linux-riscv/commits/upstream-sg2042-clock-v3 [3]
Link: https://lore.kernel.org/linux-riscv/MA0P287MB03329AE180378E1A2E034374FE82A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ [4]
Link: https://github.com/unicornx/linux-riscv/commits/upstream-sg2042-clock-v4 [5]
Link: https://github.com/unicornx/linux-riscv/commits/upstream-sg2042-clock-v5 [6]
Link: https://github.com/unicornx/linux-riscv/commits/upstream-sg2042-clock-v6 [7]
Link: https://github.com/unicornx/linux-riscv/commits/upstream-sg2042-clock-v7 [8]

---

Chen Wang (4):
dt-bindings: soc: sophgo: Add Sophgo system control module
dt-bindings: clock: sophgo: support SG2042
clk: sophgo: Add SG2042 clock generator driver
riscv: dts: add clock generator for Sophgo SG2042 SoC

.../bindings/clock/sophgo,sg2042-clkgen.yaml | 53 +
.../soc/sophgo/sophgo,sg2042-sysctrl.yaml | 34 +
MAINTAINERS | 7 +
.../boot/dts/sophgo/sg2042-milkv-pioneer.dts | 4 +
arch/riscv/boot/dts/sophgo/sg2042.dtsi | 23 +
drivers/clk/Kconfig | 1 +
drivers/clk/Makefile | 1 +
drivers/clk/sophgo/Kconfig | 8 +
drivers/clk/sophgo/Makefile | 2 +
drivers/clk/sophgo/clk-sophgo-sg2042.c | 1316 +++++++++++++++++
drivers/clk/sophgo/clk-sophgo-sg2042.h | 236 +++
.../dt-bindings/clock/sophgo,sg2042-clkgen.h | 169 +++
12 files changed, 1854 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/sophgo,sg2042-clkgen.yaml
create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,sg2042-sysctrl.yaml
create mode 100644 drivers/clk/sophgo/Kconfig
create mode 100644 drivers/clk/sophgo/Makefile
create mode 100644 drivers/clk/sophgo/clk-sophgo-sg2042.c
create mode 100644 drivers/clk/sophgo/clk-sophgo-sg2042.h
create mode 100644 include/dt-bindings/clock/sophgo,sg2042-clkgen.h


base-commit: 0dd3ee31125508cd67f7e7172247f05b7fd1753a
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2.25.1