Re: [PATCH v4 3/4] clk: sophgo: Add SG2042 clock generator driver

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On 2023/12/5 9:13, Inochi Amaoto wrote:
From: Chen Wang <unicorn_wang@xxxxxxxxxxx>

Add a driver for the SOPHGO SG2042 clock generator.

Signed-off-by: Chen Wang <unicorn_wang@xxxxxxxxxxx>
---
MAINTAINERS                            |    7 +
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 | 1371 ++++++++++++++++++++++++
drivers/clk/sophgo/clk-sophgo-sg2042.h |  226 ++++
7 files changed, 1616 insertions(+)
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

diff --git a/MAINTAINERS b/MAINTAINERS
index 97f51d5ec1cf..c9c75468f2cb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20269,6 +20269,13 @@ S:	Maintained
F:	arch/riscv/boot/dts/sophgo/
F:	Documentation/devicetree/bindings/riscv/sophgo.yaml

+SOPHGO CLOCK DRIVER
+M:	Chen Wang <unicorn_wang@xxxxxxxxxxx>
+S:	Maintained
+F:	Documentation/devicetree/bindings/clock/sophgo/
+F:	drivers/clk/sophgo/
+F:	include/dt-bindings/clock/sophgo,sg2042-clkgen.h
+
SOUND
M:	Jaroslav Kysela <perex@xxxxxxxx>
M:	Takashi Iwai <tiwai@xxxxxxxx>
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index c30d0d396f7a..514343934fda 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -499,6 +499,7 @@ source "drivers/clk/rockchip/Kconfig"
source "drivers/clk/samsung/Kconfig"
source "drivers/clk/sifive/Kconfig"
source "drivers/clk/socfpga/Kconfig"
+source "drivers/clk/sophgo/Kconfig"
source "drivers/clk/sprd/Kconfig"
source "drivers/clk/starfive/Kconfig"
source "drivers/clk/sunxi/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index ed71f2e0ee36..aa5d2cf0b6a6 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -119,6 +119,7 @@ obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/
obj-$(CONFIG_CLK_SIFIVE)		+= sifive/
obj-y					+= socfpga/
+obj-$(CONFIG_ARCH_SOPHGO)		+= sophgo/
obj-$(CONFIG_PLAT_SPEAR)		+= spear/
obj-y					+= sprd/
obj-$(CONFIG_ARCH_STI)			+= st/
diff --git a/drivers/clk/sophgo/Kconfig b/drivers/clk/sophgo/Kconfig
new file mode 100644
index 000000000000..b0fbe4499870
--- /dev/null
+++ b/drivers/clk/sophgo/Kconfig
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config CLK_SOPHGO_SG2042
+	bool "Sophgo SG2042 clock support"
+	depends on ARCH_SOPHGO || COMPILE_TEST
+	default ARCH_SOPHGO
+	help
+	  Say yes here to support the clock controller on the Sophgo SG2042 SoC.
Please add RISCV to its depends. Not all the sophgo SoCs are in the RISC-V
platform, Some are arm chips. It is not good to build this driver
in that arch.
ARCH_SOPHGO is only defined in RISC-V arch, so I think RISCV should not be needed as depends.

Also, the condition ARCH_SOPHGO is duplicate in the Makefile. Please
remove one of them.

Don't undestand your question "the condition ARCH_SOPHGO is duplicate in the Makefile ",  I think you are talking about Kconifg, what Makefile are you talking about?

diff --git a/drivers/clk/sophgo/Makefile b/drivers/clk/sophgo/Makefile
new file mode 100644
index 000000000000..13834cce260c
--- /dev/null
+++ b/drivers/clk/sophgo/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_CLK_SOPHGO_SG2042)	+= clk-sophgo-sg2042.o
diff --git a/drivers/clk/sophgo/clk-sophgo-sg2042.c b/drivers/clk/sophgo/clk-sophgo-sg2042.c
new file mode 100644
index 000000000000..421ebcc7192b
......
+		}
+
+#if defined(DEBUG)
+		pr_info("registered [%d : %s]\n", gate->id, gate->name);
+#endif
Drop, no need for this.

OK, this log should not be needed, I will remove it in next version.





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